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From e492d60b92dce680f7dadb2bed1bbf575e085bac Mon Sep 17 00:00:00 2001
From: groff owner <groff-owner@fedoraproject.org>
Date: Mon, 12 Nov 2018 15:32:30 +0100
Subject: [PATCH] Fix important Covscan defects

---
 contrib/pic2graph/pic2graph.sh    |    1 -
 src/devices/grohtml/post-html.cpp |   26 +-
 src/devices/grolbp/lbp.cpp        |    4 +-
 src/include/relocate.h            |    7 +
 src/libs/libbib/index.cpp         |    4 +-
 src/libs/libgroff/localcharset.c  |    6 +-
 src/libs/libgroff/relocate.cpp    |    6 +
 src/preproc/eqn/eqn.cpp           | 2163 -------------
 src/preproc/grn/main.cpp          |    3 +
 src/preproc/html/pre-html.cpp     |   46 +-
 src/preproc/pic/pic.cpp           | 5008 -----------------------------
 src/preproc/refer/label.cpp       | 2701 ----------------
 src/preproc/refer/label.y         |    2 +-
 src/preproc/tbl/table.cpp         |    4 +-
 src/roff/troff/dictionary.cpp     |    5 +
 src/roff/troff/dictionary.h       |    1 +
 src/roff/troff/env.cpp            |   11 +-
 src/roff/troff/input.cpp          |    5 +
 src/roff/troff/mtsm.cpp           |    6 +-
 src/utils/addftinfo/addftinfo.cpp |    1 +
 src/utils/hpftodit/hpftodit.cpp   |   28 +-
 src/utils/indxbib/indxbib.cpp     |    7 +
 src/utils/tfmtodit/tfmtodit.cpp   |    8 +
 23 files changed, 152 insertions(+), 9901 deletions(-)
 delete mode 100644 src/preproc/eqn/eqn.cpp
 delete mode 100644 src/preproc/pic/pic.cpp
 delete mode 100644 src/preproc/refer/label.cpp

diff --git a/contrib/pic2graph/pic2graph.sh b/contrib/pic2graph/pic2graph.sh
index 6b3360d..3e1e788 100644
--- a/contrib/pic2graph/pic2graph.sh
+++ b/contrib/pic2graph/pic2graph.sh
@@ -33,7 +33,6 @@
 # intended as a pic translator; we can live with eqn defaults. 
 #
 groffpic_opts=""
-gs_opts=""
 convert_opts=""
 format="png"
 eqndelim='$$'
diff --git a/src/devices/grohtml/post-html.cpp b/src/devices/grohtml/post-html.cpp
index fefbf01..c775826 100644
--- a/src/devices/grohtml/post-html.cpp
+++ b/src/devices/grohtml/post-html.cpp
@@ -2353,7 +2353,7 @@ static string &generate_img_src (const char *filename)
 
 void html_printer::do_auto_image (text_glob *g, const char *filename)
 {
-  string buffer = generate_img_src(filename);
+  string &buffer = generate_img_src(filename);
   
   if (! buffer.empty()) {
     /*
@@ -2366,6 +2366,8 @@ void html_printer::do_auto_image (text_glob *g, const char *filename)
     emit_raw(&h);
   } else
     next_tag = INLINE;
+
+  delete &buffer;
 }
 
 /*
@@ -2397,7 +2399,7 @@ void html_printer::do_title (void)
 	t = page_contents->glyphs.get_data();
 	removed_from_head = FALSE;
 	if (t->is_auto_img()) {
-	  string img = generate_img_src((char *)(t->text_string + 20));
+	  string &img = generate_img_src((char *)(t->text_string + 20));
 
 	  if (! img.empty()) {
 	    if (found_title_start)
@@ -2406,6 +2408,8 @@ void html_printer::do_title (void)
 	    title.has_been_found = TRUE;
 	    title.text += img;
 	  }
+      delete &img;
+
 	  page_contents->glyphs.sub_move_right(); 	  /* move onto next word */
 	  removed_from_head = ((!page_contents->glyphs.is_empty()) &&
 			       (page_contents->glyphs.is_equal_to_head()));
@@ -2607,7 +2611,7 @@ void html_printer::do_heading (char *arg)
     horiz = g->minh;
     do {
       if (g->is_auto_img()) {
-	string img=generate_img_src((char *)(g->text_string + 20));
+	string &img=generate_img_src((char *)(g->text_string + 20));
 
 	if (! img.empty()) {
 	  simple_anchors = TRUE;  // we cannot use full heading anchors with images
@@ -2616,6 +2620,7 @@ void html_printer::do_heading (char *arg)
 	  
 	  header.header_buffer += img;
 	}
+	delete &img;
       }
       else if (g->is_in() || g->is_ti() || g->is_po() || g->is_ce() || g->is_ll())
 	troff_tag(g);
@@ -5158,6 +5163,8 @@ html_printer::~html_printer()
     fputs("</body>\n", stdout);
     fputs("</html>\n", stdout);
   }
+
+  delete page_contents;
 }
 
 /*
@@ -5248,6 +5255,12 @@ void html_printer::handle_assertion (int minv, int minh, int maxv, int maxh, con
     if (strncmp(cmd, "assertion:[", strlen("assertion:[")) == 0)
       page_contents->add_tag(&sbuf_style, string(s),
 			     line_number, minv, minh, maxv, maxh);
+
+  a_delete cmd;
+  a_delete id;
+  a_delete val;
+  a_delete file;
+  a_delete line;
 }
 
 /*
@@ -5261,11 +5274,16 @@ void html_printer::handle_state_assertion (text_glob *g)
     char *n   = (char *)&g->text_string[11];
     char *cmd = get_str(n, &n);
     char *val = get_str(n, &n);
-    (void)get_str(n, &n);	// unused
+    a_delete get_str(n, &n);	// unused
     char *file= get_str(n, &n);
     char *line= get_str(n, &n);
 
     as.build(cmd, val, file, line);
+
+    a_delete cmd;
+    a_delete val;
+    a_delete file;
+    a_delete line;
   }
 }
 
diff --git a/src/devices/grolbp/lbp.cpp b/src/devices/grolbp/lbp.cpp
index fbd1bbf..9ebf4c5 100644
--- a/src/devices/grolbp/lbp.cpp
+++ b/src/devices/grolbp/lbp.cpp
@@ -271,6 +271,7 @@ char *lbp_printer::font_name(const lbp_font *f, const int siz)
     sprintf(bfont_name, "%c%s%d", ori, nam, cpi);
   else
     sprintf(bfont_name, "%c%s%d%c", ori, nam, cpi, type);
+  a_delete nam;
   return bfont_name;
 }
 
@@ -390,7 +391,7 @@ inline void lbp_printer::setfillmode(int mode)
     else
       vdmsetfillmode(mode, 1, 1);	// To get black we must use white
 					// inverted
-      fill_mode = mode;
+    fill_mode = mode;
   }
 }
 
@@ -406,6 +407,7 @@ inline void lbp_printer::polygon(int hpos, int vpos, int np, int *p)
   // for (i = 0; i < np; i++) fprintf(stderr, " %d ", p[i]);
   // fprintf(stderr, "\n");
   vdmpolygon((np /2) + 1, points);
+  a_delete points;
 }
 
 void lbp_printer::draw(int code, int *p, int np, const environment *env)
diff --git a/src/include/relocate.h b/src/include/relocate.h
index 905dcbb..3fbfa7d 100644
--- a/src/include/relocate.h
+++ b/src/include/relocate.h
@@ -32,6 +32,13 @@ extern
 #endif
 char *relocatep (const char *path);
 
+/* This function has C linkage.  */
+extern
+#ifdef __cplusplus
+"C"
+#endif
+void free_relocated_path(char *path);
+
 #ifdef __cplusplus
 char *relocate (const char *path);
 #endif
diff --git a/src/libs/libbib/index.cpp b/src/libs/libbib/index.cpp
index ea4df53..051f5ce 100644
--- a/src/libs/libbib/index.cpp
+++ b/src/libs/libbib/index.cpp
@@ -275,8 +275,10 @@ search_item *make_index_search_item(const char *filename, int fid)
   strcpy(index_filename, filename);
   strcat(index_filename, INDEX_SUFFIX);
   int fd = open(index_filename, O_RDONLY | O_BINARY);
-  if (fd < 0)
+  if (fd < 0) {
+    a_delete index_filename;
     return 0;
+  }
   index_search_item *item = new index_search_item(index_filename, fid);
   a_delete index_filename;
   if (!item->load(fd)) {
diff --git a/src/libs/libgroff/localcharset.c b/src/libs/libgroff/localcharset.c
index 1c17af0..2848038 100644
--- a/src/libs/libgroff/localcharset.c
+++ b/src/libs/libgroff/localcharset.c
@@ -130,6 +130,7 @@ get_charset_aliases (void)
     {
 #if !(defined DARWIN7 || defined VMS || defined WINDOWS_NATIVE || defined __CYGWIN__)
       const char *dir;
+      const char *libdir = NULL;
       const char *base = "charset.alias";
       char *file_name;
 
@@ -137,7 +138,7 @@ get_charset_aliases (void)
          necessary for running the testsuite before "make install".  */
       dir = getenv ("CHARSETALIASDIR");
       if (dir == NULL || dir[0] == '\0')
-        dir = relocate (LIBDIR);
+        dir = libdir = relocate (LIBDIR);
 
       /* Concatenate dir and base into freshly allocated file_name.  */
       {
@@ -154,6 +155,9 @@ get_charset_aliases (void)
           }
       }
 
+      if (libdir != NULL)
+        free_relocated_path ((char *) libdir);
+
       if (file_name == NULL)
         /* Out of memory.  Treat the file as empty.  */
         cp = "";
diff --git a/src/libs/libgroff/relocate.cpp b/src/libs/libgroff/relocate.cpp
index ead2d6b..a82dd82 100644
--- a/src/libs/libgroff/relocate.cpp
+++ b/src/libs/libgroff/relocate.cpp
@@ -172,6 +172,7 @@ void set_current_prefix()
   fprintf(stderr, "curr_prefix: %s\n", curr_prefix);
 # endif /* DEBUG */
 #else /* !_WIN32 */
+  a_delete curr_prefix;
   curr_prefix = searchpath(program_name, getenv("PATH"));
   if (!curr_prefix && !strchr(program_name, '.')) {	// try with extensions
     pathextstr = strsave(getenv("PATHEXT"));
@@ -220,6 +221,11 @@ char *relocatep(const char *path)
   return relocated_path;
 }
 
+void free_relocated_path(char *path)
+{
+    a_delete path;
+}
+
 // Return the original pathname if it exists;
 // otherwise return the relocated path.
 char *relocate(const char *path)
diff --git a/src/preproc/eqn/eqn.cpp b/src/preproc/eqn/eqn.cpp
deleted file mode 100644
index ea96fc1..0000000
--- a/src/preproc/eqn/eqn.cpp
+++ /dev/null
@@ -1,2163 +0,0 @@
-/* A Bison parser, made by GNU Bison 3.0.2.  */
-
-/* Bison implementation for Yacc-like parsers in C
-
-   Copyright (C) 1984, 1989-1990, 2000-2013 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* As a special exception, you may create a larger work that contains
-   part or all of the Bison parser skeleton and distribute that work
-   under terms of your choice, so long as that work isn't itself a
-   parser generator using the skeleton or a modified version thereof
-   as a parser skeleton.  Alternatively, if you modify or redistribute
-   the parser skeleton itself, you may (at your option) remove this
-   special exception, which will cause the skeleton and the resulting
-   Bison output files to be licensed under the GNU General Public
-   License without this special exception.
-
-   This special exception was added by the Free Software Foundation in
-   version 2.2 of Bison.  */
-
-/* C LALR(1) parser skeleton written by Richard Stallman, by
-   simplifying the original so-called "semantic" parser.  */
-
-/* All symbols defined below should begin with yy or YY, to avoid
-   infringing on user name space.  This should be done even for local
-   variables, as they might otherwise be expanded by user macros.
-   There are some unavoidable exceptions within include files to
-   define necessary library symbols; they are noted "INFRINGES ON
-   USER NAME SPACE" below.  */
-
-/* Identify Bison output.  */
-#define YYBISON 1
-
-/* Bison version.  */
-#define YYBISON_VERSION "3.0.2"
-
-/* Skeleton name.  */
-#define YYSKELETON_NAME "yacc.c"
-
-/* Pure parsers.  */
-#define YYPURE 0
-
-/* Push parsers.  */
-#define YYPUSH 0
-
-/* Pull parsers.  */
-#define YYPULL 1
-
-
-
-
-/* Copy the first part of user declarations.  */
-#line 18 "eqn.y" /* yacc.c:339  */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "lib.h"
-#include "box.h"
-extern int non_empty_flag;
-int yylex();
-void yyerror(const char *);
-
-#line 78 "eqn.cpp" /* yacc.c:339  */
-
-# ifndef YY_NULLPTR
-#  if defined __cplusplus && 201103L <= __cplusplus
-#   define YY_NULLPTR nullptr
-#  else
-#   define YY_NULLPTR 0
-#  endif
-# endif
-
-/* Enabling verbose error messages.  */
-#ifdef YYERROR_VERBOSE
-# undef YYERROR_VERBOSE
-# define YYERROR_VERBOSE 1
-#else
-# define YYERROR_VERBOSE 0
-#endif
-
-/* In a future release of Bison, this section will be replaced
-   by #include "y.tab.h".  */
-#ifndef YY_YY_Y_TAB_H_INCLUDED
-# define YY_YY_Y_TAB_H_INCLUDED
-/* Debug traces.  */
-#ifndef YYDEBUG
-# define YYDEBUG 0
-#endif
-#if YYDEBUG
-extern int yydebug;
-#endif
-
-/* Token type.  */
-#ifndef YYTOKENTYPE
-# define YYTOKENTYPE
-  enum yytokentype
-  {
-    OVER = 258,
-    SMALLOVER = 259,
-    SQRT = 260,
-    SUB = 261,
-    SUP = 262,
-    LPILE = 263,
-    RPILE = 264,
-    CPILE = 265,
-    PILE = 266,
-    LEFT = 267,
-    RIGHT = 268,
-    TO = 269,
-    FROM = 270,
-    SIZE = 271,
-    FONT = 272,
-    ROMAN = 273,
-    BOLD = 274,
-    ITALIC = 275,
-    FAT = 276,
-    ACCENT = 277,
-    BAR = 278,
-    UNDER = 279,
-    ABOVE = 280,
-    TEXT = 281,
-    QUOTED_TEXT = 282,
-    FWD = 283,
-    BACK = 284,
-    DOWN = 285,
-    UP = 286,
-    MATRIX = 287,
-    COL = 288,
-    LCOL = 289,
-    RCOL = 290,
-    CCOL = 291,
-    MARK = 292,
-    LINEUP = 293,
-    TYPE = 294,
-    VCENTER = 295,
-    PRIME = 296,
-    SPLIT = 297,
-    NOSPLIT = 298,
-    UACCENT = 299,
-    SPECIAL = 300,
-    SPACE = 301,
-    GFONT = 302,
-    GSIZE = 303,
-    DEFINE = 304,
-    NDEFINE = 305,
-    TDEFINE = 306,
-    SDEFINE = 307,
-    UNDEF = 308,
-    IFDEF = 309,
-    INCLUDE = 310,
-    DELIM = 311,
-    CHARTYPE = 312,
-    SET = 313,
-    GRFONT = 314,
-    GBFONT = 315
-  };
-#endif
-/* Tokens.  */
-#define OVER 258
-#define SMALLOVER 259
-#define SQRT 260
-#define SUB 261
-#define SUP 262
-#define LPILE 263
-#define RPILE 264
-#define CPILE 265
-#define PILE 266
-#define LEFT 267
-#define RIGHT 268
-#define TO 269
-#define FROM 270
-#define SIZE 271
-#define FONT 272
-#define ROMAN 273
-#define BOLD 274
-#define ITALIC 275
-#define FAT 276
-#define ACCENT 277
-#define BAR 278
-#define UNDER 279
-#define ABOVE 280
-#define TEXT 281
-#define QUOTED_TEXT 282
-#define FWD 283
-#define BACK 284
-#define DOWN 285
-#define UP 286
-#define MATRIX 287
-#define COL 288
-#define LCOL 289
-#define RCOL 290
-#define CCOL 291
-#define MARK 292
-#define LINEUP 293
-#define TYPE 294
-#define VCENTER 295
-#define PRIME 296
-#define SPLIT 297
-#define NOSPLIT 298
-#define UACCENT 299
-#define SPECIAL 300
-#define SPACE 301
-#define GFONT 302
-#define GSIZE 303
-#define DEFINE 304
-#define NDEFINE 305
-#define TDEFINE 306
-#define SDEFINE 307
-#define UNDEF 308
-#define IFDEF 309
-#define INCLUDE 310
-#define DELIM 311
-#define CHARTYPE 312
-#define SET 313
-#define GRFONT 314
-#define GBFONT 315
-
-/* Value type.  */
-#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
-typedef union YYSTYPE YYSTYPE;
-union YYSTYPE
-{
-#line 30 "eqn.y" /* yacc.c:355  */
-
-	char *str;
-	box *b;
-	pile_box *pb;
-	matrix_box *mb;
-	int n;
-	column *col;
-
-#line 247 "eqn.cpp" /* yacc.c:355  */
-};
-# define YYSTYPE_IS_TRIVIAL 1
-# define YYSTYPE_IS_DECLARED 1
-#endif
-
-
-extern YYSTYPE yylval;
-
-int yyparse (void);
-
-#endif /* !YY_YY_Y_TAB_H_INCLUDED  */
-
-/* Copy the second part of user declarations.  */
-
-#line 262 "eqn.cpp" /* yacc.c:358  */
-
-#ifdef short
-# undef short
-#endif
-
-#ifdef YYTYPE_UINT8
-typedef YYTYPE_UINT8 yytype_uint8;
-#else
-typedef unsigned char yytype_uint8;
-#endif
-
-#ifdef YYTYPE_INT8
-typedef YYTYPE_INT8 yytype_int8;
-#else
-typedef signed char yytype_int8;
-#endif
-
-#ifdef YYTYPE_UINT16
-typedef YYTYPE_UINT16 yytype_uint16;
-#else
-typedef unsigned short int yytype_uint16;
-#endif
-
-#ifdef YYTYPE_INT16
-typedef YYTYPE_INT16 yytype_int16;
-#else
-typedef short int yytype_int16;
-#endif
-
-#ifndef YYSIZE_T
-# ifdef __SIZE_TYPE__
-#  define YYSIZE_T __SIZE_TYPE__
-# elif defined size_t
-#  define YYSIZE_T size_t
-# elif ! defined YYSIZE_T
-#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
-#  define YYSIZE_T size_t
-# else
-#  define YYSIZE_T unsigned int
-# endif
-#endif
-
-#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
-
-#ifndef YY_
-# if defined YYENABLE_NLS && YYENABLE_NLS
-#  if ENABLE_NLS
-#   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
-#   define YY_(Msgid) dgettext ("bison-runtime", Msgid)
-#  endif
-# endif
-# ifndef YY_
-#  define YY_(Msgid) Msgid
-# endif
-#endif
-
-#ifndef YY_ATTRIBUTE
-# if (defined __GNUC__                                               \
-      && (2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__)))  \
-     || defined __SUNPRO_C && 0x5110 <= __SUNPRO_C
-#  define YY_ATTRIBUTE(Spec) __attribute__(Spec)
-# else
-#  define YY_ATTRIBUTE(Spec) /* empty */
-# endif
-#endif
-
-#ifndef YY_ATTRIBUTE_PURE
-# define YY_ATTRIBUTE_PURE   YY_ATTRIBUTE ((__pure__))
-#endif
-
-#ifndef YY_ATTRIBUTE_UNUSED
-# define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__))
-#endif
-
-#if !defined _Noreturn \
-     && (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112)
-# if defined _MSC_VER && 1200 <= _MSC_VER
-#  define _Noreturn __declspec (noreturn)
-# else
-#  define _Noreturn YY_ATTRIBUTE ((__noreturn__))
-# endif
-#endif
-
-/* Suppress unused-variable warnings by "using" E.  */
-#if ! defined lint || defined __GNUC__
-# define YYUSE(E) ((void) (E))
-#else
-# define YYUSE(E) /* empty */
-#endif
-
-#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
-/* Suppress an incorrect diagnostic about yylval being uninitialized.  */
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
-    _Pragma ("GCC diagnostic push") \
-    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
-    _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
-# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
-    _Pragma ("GCC diagnostic pop")
-#else
-# define YY_INITIAL_VALUE(Value) Value
-#endif
-#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-# define YY_IGNORE_MAYBE_UNINITIALIZED_END
-#endif
-#ifndef YY_INITIAL_VALUE
-# define YY_INITIAL_VALUE(Value) /* Nothing. */
-#endif
-
-
-#if ! defined yyoverflow || YYERROR_VERBOSE
-
-/* The parser invokes alloca or malloc; define the necessary symbols.  */
-
-# ifdef YYSTACK_USE_ALLOCA
-#  if YYSTACK_USE_ALLOCA
-#   ifdef __GNUC__
-#    define YYSTACK_ALLOC __builtin_alloca
-#   elif defined __BUILTIN_VA_ARG_INCR
-#    include <alloca.h> /* INFRINGES ON USER NAME SPACE */
-#   elif defined _AIX
-#    define YYSTACK_ALLOC __alloca
-#   elif defined _MSC_VER
-#    include <malloc.h> /* INFRINGES ON USER NAME SPACE */
-#    define alloca _alloca
-#   else
-#    define YYSTACK_ALLOC alloca
-#    if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS
-#     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-      /* Use EXIT_SUCCESS as a witness for stdlib.h.  */
-#     ifndef EXIT_SUCCESS
-#      define EXIT_SUCCESS 0
-#     endif
-#    endif
-#   endif
-#  endif
-# endif
-
-# ifdef YYSTACK_ALLOC
-   /* Pacify GCC's 'empty if-body' warning.  */
-#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
-#  ifndef YYSTACK_ALLOC_MAXIMUM
-    /* The OS might guarantee only one guard page at the bottom of the stack,
-       and a page size can be as small as 4096 bytes.  So we cannot safely
-       invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
-       to allow for a few compiler-allocated temporary stack slots.  */
-#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
-#  endif
-# else
-#  define YYSTACK_ALLOC YYMALLOC
-#  define YYSTACK_FREE YYFREE
-#  ifndef YYSTACK_ALLOC_MAXIMUM
-#   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
-#  endif
-#  if (defined __cplusplus && ! defined EXIT_SUCCESS \
-       && ! ((defined YYMALLOC || defined malloc) \
-             && (defined YYFREE || defined free)))
-#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-#   ifndef EXIT_SUCCESS
-#    define EXIT_SUCCESS 0
-#   endif
-#  endif
-#  ifndef YYMALLOC
-#   define YYMALLOC malloc
-#   if ! defined malloc && ! defined EXIT_SUCCESS
-void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
-#   endif
-#  endif
-#  ifndef YYFREE
-#   define YYFREE free
-#   if ! defined free && ! defined EXIT_SUCCESS
-void free (void *); /* INFRINGES ON USER NAME SPACE */
-#   endif
-#  endif
-# endif
-#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
-
-
-#if (! defined yyoverflow \
-     && (! defined __cplusplus \
-         || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
-
-/* A type that is properly aligned for any stack member.  */
-union yyalloc
-{
-  yytype_int16 yyss_alloc;
-  YYSTYPE yyvs_alloc;
-};
-
-/* The size of the maximum gap between one aligned stack and the next.  */
-# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
-
-/* The size of an array large to enough to hold all stacks, each with
-   N elements.  */
-# define YYSTACK_BYTES(N) \
-     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
-      + YYSTACK_GAP_MAXIMUM)
-
-# define YYCOPY_NEEDED 1
-
-/* Relocate STACK from its old location to the new one.  The
-   local variables YYSIZE and YYSTACKSIZE give the old and new number of
-   elements in the stack, and YYPTR gives the new location of the
-   stack.  Advance YYPTR to a properly aligned location for the next
-   stack.  */
-# define YYSTACK_RELOCATE(Stack_alloc, Stack)                           \
-    do                                                                  \
-      {                                                                 \
-        YYSIZE_T yynewbytes;                                            \
-        YYCOPY (&yyptr->Stack_alloc, Stack, yysize);                    \
-        Stack = &yyptr->Stack_alloc;                                    \
-        yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
-        yyptr += yynewbytes / sizeof (*yyptr);                          \
-      }                                                                 \
-    while (0)
-
-#endif
-
-#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
-/* Copy COUNT objects from SRC to DST.  The source and destination do
-   not overlap.  */
-# ifndef YYCOPY
-#  if defined __GNUC__ && 1 < __GNUC__
-#   define YYCOPY(Dst, Src, Count) \
-      __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src)))
-#  else
-#   define YYCOPY(Dst, Src, Count)              \
-      do                                        \
-        {                                       \
-          YYSIZE_T yyi;                         \
-          for (yyi = 0; yyi < (Count); yyi++)   \
-            (Dst)[yyi] = (Src)[yyi];            \
-        }                                       \
-      while (0)
-#  endif
-# endif
-#endif /* !YYCOPY_NEEDED */
-
-/* YYFINAL -- State number of the termination state.  */
-#define YYFINAL  72
-/* YYLAST -- Last index in YYTABLE.  */
-#define YYLAST   379
-
-/* YYNTOKENS -- Number of terminals.  */
-#define YYNTOKENS  66
-/* YYNNTS -- Number of nonterminals.  */
-#define YYNNTS  18
-/* YYNRULES -- Number of rules.  */
-#define YYNRULES  75
-/* YYNSTATES -- Number of states.  */
-#define YYNSTATES  142
-
-/* YYTRANSLATE[YYX] -- Symbol number corresponding to YYX as returned
-   by yylex, with out-of-bounds checking.  */
-#define YYUNDEFTOK  2
-#define YYMAXUTOK   315
-
-#define YYTRANSLATE(YYX)                                                \
-  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
-
-/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
-   as returned by yylex, without out-of-bounds checking.  */
-static const yytype_uint8 yytranslate[] =
-{
-       0,     2,     2,     2,     2,     2,     2,     2,     2,    63,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,    61,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,    64,     2,    65,    62,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
-       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
-      15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
-      25,    26,    27,    28,    29,    30,    31,    32,    33,    34,
-      35,    36,    37,    38,    39,    40,    41,    42,    43,    44,
-      45,    46,    47,    48,    49,    50,    51,    52,    53,    54,
-      55,    56,    57,    58,    59,    60
-};
-
-#if YYDEBUG
-  /* YYRLINE[YYN] -- Source line where rule number YYN was defined.  */
-static const yytype_uint16 yyrline[] =
-{
-       0,   121,   121,   123,   128,   130,   141,   143,   145,   150,
-     152,   154,   156,   158,   163,   165,   167,   169,   174,   176,
-     181,   183,   185,   190,   192,   194,   196,   198,   200,   202,
-     204,   206,   208,   210,   212,   214,   216,   218,   220,   222,
-     224,   226,   228,   230,   232,   234,   236,   238,   240,   242,
-     244,   246,   248,   250,   252,   254,   259,   269,   271,   276,
-     278,   283,   285,   290,   292,   297,   299,   304,   306,   308,
-     310,   314,   316,   321,   323,   325
-};
-#endif
-
-#if YYDEBUG || YYERROR_VERBOSE || 0
-/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
-   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
-static const char *const yytname[] =
-{
-  "$end", "error", "$undefined", "OVER", "SMALLOVER", "SQRT", "SUB",
-  "SUP", "LPILE", "RPILE", "CPILE", "PILE", "LEFT", "RIGHT", "TO", "FROM",
-  "SIZE", "FONT", "ROMAN", "BOLD", "ITALIC", "FAT", "ACCENT", "BAR",
-  "UNDER", "ABOVE", "TEXT", "QUOTED_TEXT", "FWD", "BACK", "DOWN", "UP",
-  "MATRIX", "COL", "LCOL", "RCOL", "CCOL", "MARK", "LINEUP", "TYPE",
-  "VCENTER", "PRIME", "SPLIT", "NOSPLIT", "UACCENT", "SPECIAL", "SPACE",
-  "GFONT", "GSIZE", "DEFINE", "NDEFINE", "TDEFINE", "SDEFINE", "UNDEF",
-  "IFDEF", "INCLUDE", "DELIM", "CHARTYPE", "SET", "GRFONT", "GBFONT",
-  "'^'", "'~'", "'\\t'", "'{'", "'}'", "$accept", "top", "equation",
-  "mark", "from_to", "sqrt_over", "script", "nonsup", "simple", "number",
-  "pile_element_list", "pile_arg", "column_list", "column_element_list",
-  "column_arg", "column", "text", "delim", YY_NULLPTR
-};
-#endif
-
-# ifdef YYPRINT
-/* YYTOKNUM[NUM] -- (External) token number corresponding to the
-   (internal) symbol number NUM (which must be that of a token).  */
-static const yytype_uint16 yytoknum[] =
-{
-       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
-     265,   266,   267,   268,   269,   270,   271,   272,   273,   274,
-     275,   276,   277,   278,   279,   280,   281,   282,   283,   284,
-     285,   286,   287,   288,   289,   290,   291,   292,   293,   294,
-     295,   296,   297,   298,   299,   300,   301,   302,   303,   304,
-     305,   306,   307,   308,   309,   310,   311,   312,   313,   314,
-     315,    94,   126,     9,   123,   125
-};
-# endif
-
-#define YYPACT_NINF -76
-
-#define yypact_value_is_default(Yystate) \
-  (!!((Yystate) == (-76)))
-
-#define YYTABLE_NINF -1
-
-#define yytable_value_is_error(Yytable_value) \
-  0
-
-  /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
-     STATE-NUM.  */
-static const yytype_int16 yypact[] =
-{
-     230,   269,     6,     6,     6,     6,     2,    14,    14,   308,
-     308,   308,   308,   -76,   -76,    14,    14,    14,    14,   -50,
-     230,   230,    14,   308,     4,    23,    14,   -76,   -76,   -76,
-     230,    24,   230,   -76,   -76,    70,   -76,   -76,    20,   -76,
-     -76,   -76,   230,   -44,   -76,   -76,   -76,   -76,   -76,   -76,
-     -76,   -76,   230,   308,   308,    57,    57,    57,    57,   308,
-     308,   308,   308,     3,   -76,   -76,   308,    57,   -76,   -76,
-     308,   130,   -76,   -76,   269,   269,   269,   269,   308,   308,
-     308,   -76,   -76,   -76,   308,   230,   -12,   230,   191,    57,
-      57,    57,    57,    57,    57,     8,     8,     8,     8,    12,
-     -76,    57,    57,   -76,   -76,   -76,   -76,    79,   -76,   335,
-     -76,   -76,   -76,   230,   -76,    -6,     2,   230,    28,   -76,
-     -76,   -76,   -76,   -76,   -76,   269,   269,   308,   230,   -76,
-     -76,   230,    -3,   230,   -76,   -76,   -76,   230,   -76,    -2,
-     230,   -76
-};
-
-  /* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.
-     Performed when YYTABLE does not specify something else to do.  Zero
-     means the default is an error.  */
-static const yytype_uint8 yydefact[] =
-{
-       2,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,    23,    24,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,    27,    28,    29,
-       0,     0,     3,     4,     6,     9,    14,    18,    20,    15,
-      71,    72,     0,     0,    32,    56,    33,    34,    31,    74,
-      75,    73,     0,     0,     0,    43,    44,    45,    46,     0,
-       0,     0,     0,     0,     7,     8,     0,    54,    25,    26,
-       0,     0,     1,     5,     0,     0,     0,     0,     0,     0,
-       0,    38,    39,    40,     0,    57,     0,     0,    37,    48,
-      47,    49,    50,    52,    51,     0,     0,     0,     0,     0,
-      61,    53,    55,    30,    16,    17,    10,    11,    21,    20,
-      19,    41,    42,     0,    59,     0,     0,     0,     0,    67,
-      68,    69,    70,    35,    62,     0,     0,     0,    58,    60,
-      36,    63,     0,     0,    12,    13,    22,     0,    65,     0,
-      64,    66
-};
-
-  /* YYPGOTO[NTERM-NUM].  */
-static const yytype_int8 yypgoto[] =
-{
-     -76,   -76,     0,   -17,   -75,     1,   -67,   -13,    46,    -7,
-       9,    13,   -76,   -47,    22,    -4,    -1,   -29
-};
-
-  /* YYDEFGOTO[NTERM-NUM].  */
-static const yytype_int16 yydefgoto[] =
-{
-      -1,    31,    85,    33,    34,    35,    36,    37,    38,    43,
-      86,    44,    99,   132,   119,   100,    45,    52
-};
-
-  /* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM.  If
-     positive, shift that token.  If negative, reduce the rule whose
-     number is the opposite.  If YYTABLE_NINF, syntax error.  */
-static const yytype_uint8 yytable[] =
-{
-      32,   106,    39,    64,    65,    51,    53,    54,    59,    60,
-      61,    62,   110,   113,    63,    73,    46,    47,    48,   113,
-      87,    66,   137,   137,    72,    70,    78,    79,    40,    41,
-      71,    68,    40,    41,    40,    41,    95,    96,    97,    98,
-      40,    41,    80,    81,    82,    95,    96,    97,    98,    69,
-     134,   135,    88,   114,    73,    55,    56,    57,    58,   129,
-     136,    83,   138,   141,    84,   108,    49,    50,    73,    67,
-      42,    73,   117,    74,    75,   104,   105,   123,   107,    80,
-      81,    82,    74,    75,    76,    77,   139,   130,   118,   118,
-     118,   118,   133,   125,   126,   124,   115,     0,    83,    89,
-      90,    84,     0,     0,     0,    91,    92,    93,    94,     0,
-       0,    73,   101,   128,    73,    51,   102,   131,   120,   121,
-     122,     0,     0,    73,   109,     0,   111,     0,     0,     0,
-     112,     0,     0,   131,     0,     1,     0,   140,     2,     3,
-       4,     5,     6,     0,     0,     0,     7,     8,     9,    10,
-      11,    12,     0,     0,     0,     0,    13,    14,    15,    16,
-      17,    18,    19,     0,     0,     0,     0,    20,    21,    22,
-      23,     0,    24,    25,     0,    26,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,    27,    28,    29,    30,   103,     1,     0,     0,     2,
-       3,     4,     5,     6,   116,     0,     0,     7,     8,     9,
-      10,    11,    12,     0,     0,     0,     0,    13,    14,    15,
-      16,    17,    18,    19,     0,     0,     0,     0,    20,    21,
-      22,    23,     0,    24,    25,     1,    26,     0,     2,     3,
-       4,     5,     6,     0,     0,     0,     7,     8,     9,    10,
-      11,    12,    27,    28,    29,    30,    13,    14,    15,    16,
-      17,    18,    19,     0,     0,     0,     0,    20,    21,    22,
-      23,     0,    24,    25,     1,    26,     0,     2,     3,     4,
-       5,     6,     0,     0,     0,     7,     8,     9,    10,    11,
-      12,    27,    28,    29,    30,    13,    14,    15,    16,    17,
-      18,    19,     0,     0,     0,     0,     0,     0,    22,    23,
-       0,    24,    25,     0,    26,     0,     2,     3,     4,     5,
-       6,     0,     0,     0,     7,     8,     9,    10,    11,    12,
-      27,    28,    29,    30,    13,    14,    15,    16,    17,    18,
-      19,    78,   127,     0,     0,     0,     0,    22,    23,     0,
-      24,    25,     0,    26,     0,     0,     0,    80,    81,    82,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,    27,
-      28,    29,    30,     0,     0,     0,    83,     0,     0,    84
-};
-
-static const yytype_int16 yycheck[] =
-{
-       0,    76,     1,    20,    21,     6,     7,     8,    15,    16,
-      17,    18,    79,    25,    64,    32,     3,     4,     5,    25,
-      64,    22,    25,    25,     0,    26,     6,     7,    26,    27,
-      30,    27,    26,    27,    26,    27,    33,    34,    35,    36,
-      26,    27,    22,    23,    24,    33,    34,    35,    36,    26,
-     125,   126,    52,    65,    71,     9,    10,    11,    12,    65,
-     127,    41,    65,    65,    44,    78,    64,    65,    85,    23,
-      64,    88,    64,     3,     4,    74,    75,    65,    77,    22,
-      23,    24,     3,     4,    14,    15,   133,   116,    95,    96,
-      97,    98,    64,    14,    15,    99,    87,    -1,    41,    53,
-      54,    44,    -1,    -1,    -1,    59,    60,    61,    62,    -1,
-      -1,   128,    66,   113,   131,   116,    70,   117,    96,    97,
-      98,    -1,    -1,   140,    78,    -1,    80,    -1,    -1,    -1,
-      84,    -1,    -1,   133,    -1,     5,    -1,   137,     8,     9,
-      10,    11,    12,    -1,    -1,    -1,    16,    17,    18,    19,
-      20,    21,    -1,    -1,    -1,    -1,    26,    27,    28,    29,
-      30,    31,    32,    -1,    -1,    -1,    -1,    37,    38,    39,
-      40,    -1,    42,    43,    -1,    45,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    61,    62,    63,    64,    65,     5,    -1,    -1,     8,
-       9,    10,    11,    12,    13,    -1,    -1,    16,    17,    18,
-      19,    20,    21,    -1,    -1,    -1,    -1,    26,    27,    28,
-      29,    30,    31,    32,    -1,    -1,    -1,    -1,    37,    38,
-      39,    40,    -1,    42,    43,     5,    45,    -1,     8,     9,
-      10,    11,    12,    -1,    -1,    -1,    16,    17,    18,    19,
-      20,    21,    61,    62,    63,    64,    26,    27,    28,    29,
-      30,    31,    32,    -1,    -1,    -1,    -1,    37,    38,    39,
-      40,    -1,    42,    43,     5,    45,    -1,     8,     9,    10,
-      11,    12,    -1,    -1,    -1,    16,    17,    18,    19,    20,
-      21,    61,    62,    63,    64,    26,    27,    28,    29,    30,
-      31,    32,    -1,    -1,    -1,    -1,    -1,    -1,    39,    40,
-      -1,    42,    43,    -1,    45,    -1,     8,     9,    10,    11,
-      12,    -1,    -1,    -1,    16,    17,    18,    19,    20,    21,
-      61,    62,    63,    64,    26,    27,    28,    29,    30,    31,
-      32,     6,     7,    -1,    -1,    -1,    -1,    39,    40,    -1,
-      42,    43,    -1,    45,    -1,    -1,    -1,    22,    23,    24,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    61,
-      62,    63,    64,    -1,    -1,    -1,    41,    -1,    -1,    44
-};
-
-  /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
-     symbol of state STATE-NUM.  */
-static const yytype_uint8 yystos[] =
-{
-       0,     5,     8,     9,    10,    11,    12,    16,    17,    18,
-      19,    20,    21,    26,    27,    28,    29,    30,    31,    32,
-      37,    38,    39,    40,    42,    43,    45,    61,    62,    63,
-      64,    67,    68,    69,    70,    71,    72,    73,    74,    71,
-      26,    27,    64,    75,    77,    82,    77,    77,    77,    64,
-      65,    82,    83,    82,    82,    74,    74,    74,    74,    75,
-      75,    75,    75,    64,    69,    69,    82,    74,    27,    26,
-      82,    68,     0,    69,     3,     4,    14,    15,     6,     7,
-      22,    23,    24,    41,    44,    68,    76,    64,    68,    74,
-      74,    74,    74,    74,    74,    33,    34,    35,    36,    78,
-      81,    74,    74,    65,    71,    71,    70,    71,    73,    74,
-      72,    74,    74,    25,    65,    76,    13,    64,    75,    80,
-      80,    80,    80,    65,    81,    14,    15,     7,    68,    65,
-      83,    68,    79,    64,    70,    70,    72,    25,    65,    79,
-      68,    65
-};
-
-  /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
-static const yytype_uint8 yyr1[] =
-{
-       0,    66,    67,    67,    68,    68,    69,    69,    69,    70,
-      70,    70,    70,    70,    71,    71,    71,    71,    72,    72,
-      73,    73,    73,    74,    74,    74,    74,    74,    74,    74,
-      74,    74,    74,    74,    74,    74,    74,    74,    74,    74,
-      74,    74,    74,    74,    74,    74,    74,    74,    74,    74,
-      74,    74,    74,    74,    74,    74,    75,    76,    76,    77,
-      77,    78,    78,    79,    79,    80,    80,    81,    81,    81,
-      81,    82,    82,    83,    83,    83
-};
-
-  /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN.  */
-static const yytype_uint8 yyr2[] =
-{
-       0,     2,     0,     1,     1,     2,     1,     2,     2,     1,
-       3,     3,     5,     5,     1,     2,     3,     3,     1,     3,
-       1,     3,     5,     1,     1,     2,     2,     1,     1,     1,
-       3,     2,     2,     2,     2,     4,     5,     3,     2,     2,
-       2,     3,     3,     2,     2,     2,     2,     3,     3,     3,
-       3,     3,     3,     3,     2,     3,     1,     1,     3,     3,
-       4,     1,     2,     1,     3,     3,     4,     2,     2,     2,
-       2,     1,     1,     1,     1,     1
-};
-
-
-#define yyerrok         (yyerrstatus = 0)
-#define yyclearin       (yychar = YYEMPTY)
-#define YYEMPTY         (-2)
-#define YYEOF           0
-
-#define YYACCEPT        goto yyacceptlab
-#define YYABORT         goto yyabortlab
-#define YYERROR         goto yyerrorlab
-
-
-#define YYRECOVERING()  (!!yyerrstatus)
-
-#define YYBACKUP(Token, Value)                                  \
-do                                                              \
-  if (yychar == YYEMPTY)                                        \
-    {                                                           \
-      yychar = (Token);                                         \
-      yylval = (Value);                                         \
-      YYPOPSTACK (yylen);                                       \
-      yystate = *yyssp;                                         \
-      goto yybackup;                                            \
-    }                                                           \
-  else                                                          \
-    {                                                           \
-      yyerror (YY_("syntax error: cannot back up")); \
-      YYERROR;                                                  \
-    }                                                           \
-while (0)
-
-/* Error token number */
-#define YYTERROR        1
-#define YYERRCODE       256
-
-
-
-/* Enable debugging if requested.  */
-#if YYDEBUG
-
-# ifndef YYFPRINTF
-#  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
-#  define YYFPRINTF fprintf
-# endif
-
-# define YYDPRINTF(Args)                        \
-do {                                            \
-  if (yydebug)                                  \
-    YYFPRINTF Args;                             \
-} while (0)
-
-/* This macro is provided for backward compatibility. */
-#ifndef YY_LOCATION_PRINT
-# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
-#endif
-
-
-# define YY_SYMBOL_PRINT(Title, Type, Value, Location)                    \
-do {                                                                      \
-  if (yydebug)                                                            \
-    {                                                                     \
-      YYFPRINTF (stderr, "%s ", Title);                                   \
-      yy_symbol_print (stderr,                                            \
-                  Type, Value); \
-      YYFPRINTF (stderr, "\n");                                           \
-    }                                                                     \
-} while (0)
-
-
-/*----------------------------------------.
-| Print this symbol's value on YYOUTPUT.  |
-`----------------------------------------*/
-
-static void
-yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
-{
-  FILE *yyo = yyoutput;
-  YYUSE (yyo);
-  if (!yyvaluep)
-    return;
-# ifdef YYPRINT
-  if (yytype < YYNTOKENS)
-    YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
-# endif
-  YYUSE (yytype);
-}
-
-
-/*--------------------------------.
-| Print this symbol on YYOUTPUT.  |
-`--------------------------------*/
-
-static void
-yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
-{
-  YYFPRINTF (yyoutput, "%s %s (",
-             yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]);
-
-  yy_symbol_value_print (yyoutput, yytype, yyvaluep);
-  YYFPRINTF (yyoutput, ")");
-}
-
-/*------------------------------------------------------------------.
-| yy_stack_print -- Print the state stack from its BOTTOM up to its |
-| TOP (included).                                                   |
-`------------------------------------------------------------------*/
-
-static void
-yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
-{
-  YYFPRINTF (stderr, "Stack now");
-  for (; yybottom <= yytop; yybottom++)
-    {
-      int yybot = *yybottom;
-      YYFPRINTF (stderr, " %d", yybot);
-    }
-  YYFPRINTF (stderr, "\n");
-}
-
-# define YY_STACK_PRINT(Bottom, Top)                            \
-do {                                                            \
-  if (yydebug)                                                  \
-    yy_stack_print ((Bottom), (Top));                           \
-} while (0)
-
-
-/*------------------------------------------------.
-| Report that the YYRULE is going to be reduced.  |
-`------------------------------------------------*/
-
-static void
-yy_reduce_print (yytype_int16 *yyssp, YYSTYPE *yyvsp, int yyrule)
-{
-  unsigned long int yylno = yyrline[yyrule];
-  int yynrhs = yyr2[yyrule];
-  int yyi;
-  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
-             yyrule - 1, yylno);
-  /* The symbols being reduced.  */
-  for (yyi = 0; yyi < yynrhs; yyi++)
-    {
-      YYFPRINTF (stderr, "   $%d = ", yyi + 1);
-      yy_symbol_print (stderr,
-                       yystos[yyssp[yyi + 1 - yynrhs]],
-                       &(yyvsp[(yyi + 1) - (yynrhs)])
-                                              );
-      YYFPRINTF (stderr, "\n");
-    }
-}
-
-# define YY_REDUCE_PRINT(Rule)          \
-do {                                    \
-  if (yydebug)                          \
-    yy_reduce_print (yyssp, yyvsp, Rule); \
-} while (0)
-
-/* Nonzero means print parse trace.  It is left uninitialized so that
-   multiple parsers can coexist.  */
-int yydebug;
-#else /* !YYDEBUG */
-# define YYDPRINTF(Args)
-# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
-# define YY_STACK_PRINT(Bottom, Top)
-# define YY_REDUCE_PRINT(Rule)
-#endif /* !YYDEBUG */
-
-
-/* YYINITDEPTH -- initial size of the parser's stacks.  */
-#ifndef YYINITDEPTH
-# define YYINITDEPTH 200
-#endif
-
-/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
-   if the built-in stack extension method is used).
-
-   Do not make this value too large; the results are undefined if
-   YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
-   evaluated with infinite-precision integer arithmetic.  */
-
-#ifndef YYMAXDEPTH
-# define YYMAXDEPTH 10000
-#endif
-
-
-#if YYERROR_VERBOSE
-
-# ifndef yystrlen
-#  if defined __GLIBC__ && defined _STRING_H
-#   define yystrlen strlen
-#  else
-/* Return the length of YYSTR.  */
-static YYSIZE_T
-yystrlen (const char *yystr)
-{
-  YYSIZE_T yylen;
-  for (yylen = 0; yystr[yylen]; yylen++)
-    continue;
-  return yylen;
-}
-#  endif
-# endif
-
-# ifndef yystpcpy
-#  if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
-#   define yystpcpy stpcpy
-#  else
-/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
-   YYDEST.  */
-static char *
-yystpcpy (char *yydest, const char *yysrc)
-{
-  char *yyd = yydest;
-  const char *yys = yysrc;
-
-  while ((*yyd++ = *yys++) != '\0')
-    continue;
-
-  return yyd - 1;
-}
-#  endif
-# endif
-
-# ifndef yytnamerr
-/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
-   quotes and backslashes, so that it's suitable for yyerror.  The
-   heuristic is that double-quoting is unnecessary unless the string
-   contains an apostrophe, a comma, or backslash (other than
-   backslash-backslash).  YYSTR is taken from yytname.  If YYRES is
-   null, do not copy; instead, return the length of what the result
-   would have been.  */
-static YYSIZE_T
-yytnamerr (char *yyres, const char *yystr)
-{
-  if (*yystr == '"')
-    {
-      YYSIZE_T yyn = 0;
-      char const *yyp = yystr;
-
-      for (;;)
-        switch (*++yyp)
-          {
-          case '\'':
-          case ',':
-            goto do_not_strip_quotes;
-
-          case '\\':
-            if (*++yyp != '\\')
-              goto do_not_strip_quotes;
-            /* Fall through.  */
-          default:
-            if (yyres)
-              yyres[yyn] = *yyp;
-            yyn++;
-            break;
-
-          case '"':
-            if (yyres)
-              yyres[yyn] = '\0';
-            return yyn;
-          }
-    do_not_strip_quotes: ;
-    }
-
-  if (! yyres)
-    return yystrlen (yystr);
-
-  return yystpcpy (yyres, yystr) - yyres;
-}
-# endif
-
-/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
-   about the unexpected token YYTOKEN for the state stack whose top is
-   YYSSP.
-
-   Return 0 if *YYMSG was successfully written.  Return 1 if *YYMSG is
-   not large enough to hold the message.  In that case, also set
-   *YYMSG_ALLOC to the required number of bytes.  Return 2 if the
-   required number of bytes is too large to store.  */
-static int
-yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
-                yytype_int16 *yyssp, int yytoken)
-{
-  YYSIZE_T yysize0 = yytnamerr (YY_NULLPTR, yytname[yytoken]);
-  YYSIZE_T yysize = yysize0;
-  enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
-  /* Internationalized format string. */
-  const char *yyformat = YY_NULLPTR;
-  /* Arguments of yyformat. */
-  char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
-  /* Number of reported tokens (one for the "unexpected", one per
-     "expected"). */
-  int yycount = 0;
-
-  /* There are many possibilities here to consider:
-     - If this state is a consistent state with a default action, then
-       the only way this function was invoked is if the default action
-       is an error action.  In that case, don't check for expected
-       tokens because there are none.
-     - The only way there can be no lookahead present (in yychar) is if
-       this state is a consistent state with a default action.  Thus,
-       detecting the absence of a lookahead is sufficient to determine
-       that there is no unexpected or expected token to report.  In that
-       case, just report a simple "syntax error".
-     - Don't assume there isn't a lookahead just because this state is a
-       consistent state with a default action.  There might have been a
-       previous inconsistent state, consistent state with a non-default
-       action, or user semantic action that manipulated yychar.
-     - Of course, the expected token list depends on states to have
-       correct lookahead information, and it depends on the parser not
-       to perform extra reductions after fetching a lookahead from the
-       scanner and before detecting a syntax error.  Thus, state merging
-       (from LALR or IELR) and default reductions corrupt the expected
-       token list.  However, the list is correct for canonical LR with
-       one exception: it will still contain any token that will not be
-       accepted due to an error action in a later state.
-  */
-  if (yytoken != YYEMPTY)
-    {
-      int yyn = yypact[*yyssp];
-      yyarg[yycount++] = yytname[yytoken];
-      if (!yypact_value_is_default (yyn))
-        {
-          /* Start YYX at -YYN if negative to avoid negative indexes in
-             YYCHECK.  In other words, skip the first -YYN actions for
-             this state because they are default actions.  */
-          int yyxbegin = yyn < 0 ? -yyn : 0;
-          /* Stay within bounds of both yycheck and yytname.  */
-          int yychecklim = YYLAST - yyn + 1;
-          int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
-          int yyx;
-
-          for (yyx = yyxbegin; yyx < yyxend; ++yyx)
-            if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
-                && !yytable_value_is_error (yytable[yyx + yyn]))
-              {
-                if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
-                  {
-                    yycount = 1;
-                    yysize = yysize0;
-                    break;
-                  }
-                yyarg[yycount++] = yytname[yyx];
-                {
-                  YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULLPTR, yytname[yyx]);
-                  if (! (yysize <= yysize1
-                         && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
-                    return 2;
-                  yysize = yysize1;
-                }
-              }
-        }
-    }
-
-  switch (yycount)
-    {
-# define YYCASE_(N, S)                      \
-      case N:                               \
-        yyformat = S;                       \
-      break
-      YYCASE_(0, YY_("syntax error"));
-      YYCASE_(1, YY_("syntax error, unexpected %s"));
-      YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
-      YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
-      YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
-      YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
-# undef YYCASE_
-    }
-
-  {
-    YYSIZE_T yysize1 = yysize + yystrlen (yyformat);
-    if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
-      return 2;
-    yysize = yysize1;
-  }
-
-  if (*yymsg_alloc < yysize)
-    {
-      *yymsg_alloc = 2 * yysize;
-      if (! (yysize <= *yymsg_alloc
-             && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
-        *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
-      return 1;
-    }
-
-  /* Avoid sprintf, as that infringes on the user's name space.
-     Don't have undefined behavior even if the translation
-     produced a string with the wrong number of "%s"s.  */
-  {
-    char *yyp = *yymsg;
-    int yyi = 0;
-    while ((*yyp = *yyformat) != '\0')
-      if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
-        {
-          yyp += yytnamerr (yyp, yyarg[yyi++]);
-          yyformat += 2;
-        }
-      else
-        {
-          yyp++;
-          yyformat++;
-        }
-  }
-  return 0;
-}
-#endif /* YYERROR_VERBOSE */
-
-/*-----------------------------------------------.
-| Release the memory associated to this symbol.  |
-`-----------------------------------------------*/
-
-static void
-yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep)
-{
-  YYUSE (yyvaluep);
-  if (!yymsg)
-    yymsg = "Deleting";
-  YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
-
-  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-  YYUSE (yytype);
-  YY_IGNORE_MAYBE_UNINITIALIZED_END
-}
-
-
-
-
-/* The lookahead symbol.  */
-int yychar;
-
-/* The semantic value of the lookahead symbol.  */
-YYSTYPE yylval;
-/* Number of syntax errors so far.  */
-int yynerrs;
-
-
-/*----------.
-| yyparse.  |
-`----------*/
-
-int
-yyparse (void)
-{
-    int yystate;
-    /* Number of tokens to shift before error messages enabled.  */
-    int yyerrstatus;
-
-    /* The stacks and their tools:
-       'yyss': related to states.
-       'yyvs': related to semantic values.
-
-       Refer to the stacks through separate pointers, to allow yyoverflow
-       to reallocate them elsewhere.  */
-
-    /* The state stack.  */
-    yytype_int16 yyssa[YYINITDEPTH];
-    yytype_int16 *yyss;
-    yytype_int16 *yyssp;
-
-    /* The semantic value stack.  */
-    YYSTYPE yyvsa[YYINITDEPTH];
-    YYSTYPE *yyvs;
-    YYSTYPE *yyvsp;
-
-    YYSIZE_T yystacksize;
-
-  int yyn;
-  int yyresult;
-  /* Lookahead token as an internal (translated) token number.  */
-  int yytoken = 0;
-  /* The variables used to return semantic value and location from the
-     action routines.  */
-  YYSTYPE yyval;
-
-#if YYERROR_VERBOSE
-  /* Buffer for error messages, and its allocated size.  */
-  char yymsgbuf[128];
-  char *yymsg = yymsgbuf;
-  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
-#endif
-
-#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N))
-
-  /* The number of symbols on the RHS of the reduced rule.
-     Keep to zero when no symbol should be popped.  */
-  int yylen = 0;
-
-  yyssp = yyss = yyssa;
-  yyvsp = yyvs = yyvsa;
-  yystacksize = YYINITDEPTH;
-
-  YYDPRINTF ((stderr, "Starting parse\n"));
-
-  yystate = 0;
-  yyerrstatus = 0;
-  yynerrs = 0;
-  yychar = YYEMPTY; /* Cause a token to be read.  */
-  goto yysetstate;
-
-/*------------------------------------------------------------.
-| yynewstate -- Push a new state, which is found in yystate.  |
-`------------------------------------------------------------*/
- yynewstate:
-  /* In all cases, when you get here, the value and location stacks
-     have just been pushed.  So pushing a state here evens the stacks.  */
-  yyssp++;
-
- yysetstate:
-  *yyssp = yystate;
-
-  if (yyss + yystacksize - 1 <= yyssp)
-    {
-      /* Get the current used size of the three stacks, in elements.  */
-      YYSIZE_T yysize = yyssp - yyss + 1;
-
-#ifdef yyoverflow
-      {
-        /* Give user a chance to reallocate the stack.  Use copies of
-           these so that the &'s don't force the real ones into
-           memory.  */
-        YYSTYPE *yyvs1 = yyvs;
-        yytype_int16 *yyss1 = yyss;
-
-        /* Each stack pointer address is followed by the size of the
-           data in use in that stack, in bytes.  This used to be a
-           conditional around just the two extra args, but that might
-           be undefined if yyoverflow is a macro.  */
-        yyoverflow (YY_("memory exhausted"),
-                    &yyss1, yysize * sizeof (*yyssp),
-                    &yyvs1, yysize * sizeof (*yyvsp),
-                    &yystacksize);
-
-        yyss = yyss1;
-        yyvs = yyvs1;
-      }
-#else /* no yyoverflow */
-# ifndef YYSTACK_RELOCATE
-      goto yyexhaustedlab;
-# else
-      /* Extend the stack our own way.  */
-      if (YYMAXDEPTH <= yystacksize)
-        goto yyexhaustedlab;
-      yystacksize *= 2;
-      if (YYMAXDEPTH < yystacksize)
-        yystacksize = YYMAXDEPTH;
-
-      {
-        yytype_int16 *yyss1 = yyss;
-        union yyalloc *yyptr =
-          (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
-        if (! yyptr)
-          goto yyexhaustedlab;
-        YYSTACK_RELOCATE (yyss_alloc, yyss);
-        YYSTACK_RELOCATE (yyvs_alloc, yyvs);
-#  undef YYSTACK_RELOCATE
-        if (yyss1 != yyssa)
-          YYSTACK_FREE (yyss1);
-      }
-# endif
-#endif /* no yyoverflow */
-
-      yyssp = yyss + yysize - 1;
-      yyvsp = yyvs + yysize - 1;
-
-      YYDPRINTF ((stderr, "Stack size increased to %lu\n",
-                  (unsigned long int) yystacksize));
-
-      if (yyss + yystacksize - 1 <= yyssp)
-        YYABORT;
-    }
-
-  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
-
-  if (yystate == YYFINAL)
-    YYACCEPT;
-
-  goto yybackup;
-
-/*-----------.
-| yybackup.  |
-`-----------*/
-yybackup:
-
-  /* Do appropriate processing given the current state.  Read a
-     lookahead token if we need one and don't already have one.  */
-
-  /* First try to decide what to do without reference to lookahead token.  */
-  yyn = yypact[yystate];
-  if (yypact_value_is_default (yyn))
-    goto yydefault;
-
-  /* Not known => get a lookahead token if don't already have one.  */
-
-  /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol.  */
-  if (yychar == YYEMPTY)
-    {
-      YYDPRINTF ((stderr, "Reading a token: "));
-      yychar = yylex ();
-    }
-
-  if (yychar <= YYEOF)
-    {
-      yychar = yytoken = YYEOF;
-      YYDPRINTF ((stderr, "Now at end of input.\n"));
-    }
-  else
-    {
-      yytoken = YYTRANSLATE (yychar);
-      YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
-    }
-
-  /* If the proper action on seeing token YYTOKEN is to reduce or to
-     detect an error, take that action.  */
-  yyn += yytoken;
-  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
-    goto yydefault;
-  yyn = yytable[yyn];
-  if (yyn <= 0)
-    {
-      if (yytable_value_is_error (yyn))
-        goto yyerrlab;
-      yyn = -yyn;
-      goto yyreduce;
-    }
-
-  /* Count tokens shifted since error; after three, turn off error
-     status.  */
-  if (yyerrstatus)
-    yyerrstatus--;
-
-  /* Shift the lookahead token.  */
-  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
-
-  /* Discard the shifted token.  */
-  yychar = YYEMPTY;
-
-  yystate = yyn;
-  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-  *++yyvsp = yylval;
-  YY_IGNORE_MAYBE_UNINITIALIZED_END
-
-  goto yynewstate;
-
-
-/*-----------------------------------------------------------.
-| yydefault -- do the default action for the current state.  |
-`-----------------------------------------------------------*/
-yydefault:
-  yyn = yydefact[yystate];
-  if (yyn == 0)
-    goto yyerrlab;
-  goto yyreduce;
-
-
-/*-----------------------------.
-| yyreduce -- Do a reduction.  |
-`-----------------------------*/
-yyreduce:
-  /* yyn is the number of a rule to reduce with.  */
-  yylen = yyr2[yyn];
-
-  /* If YYLEN is nonzero, implement the default value of the action:
-     '$$ = $1'.
-
-     Otherwise, the following line sets YYVAL to garbage.
-     This behavior is undocumented and Bison
-     users should not rely upon it.  Assigning to YYVAL
-     unconditionally makes the parser a bit smaller, and it avoids a
-     GCC warning that YYVAL may be used uninitialized.  */
-  yyval = yyvsp[1-yylen];
-
-
-  YY_REDUCE_PRINT (yyn);
-  switch (yyn)
-    {
-        case 3:
-#line 124 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[0].b)->top_level(); non_empty_flag = 1; }
-#line 1488 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 4:
-#line 129 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = (yyvsp[0].b); }
-#line 1494 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 5:
-#line 131 "eqn.y" /* yacc.c:1646  */
-    {
-		  list_box *lb = (yyvsp[-1].b)->to_list_box();
-		  if (!lb)
-		    lb = new list_box((yyvsp[-1].b));
-		  lb->append((yyvsp[0].b));
-		  (yyval.b) = lb;
-		}
-#line 1506 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 6:
-#line 142 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = (yyvsp[0].b); }
-#line 1512 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 7:
-#line 144 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_mark_box((yyvsp[0].b)); }
-#line 1518 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 8:
-#line 146 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_lineup_box((yyvsp[0].b)); }
-#line 1524 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 9:
-#line 151 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = (yyvsp[0].b); }
-#line 1530 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 10:
-#line 153 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_limit_box((yyvsp[-2].b), 0, (yyvsp[0].b)); }
-#line 1536 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 11:
-#line 155 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_limit_box((yyvsp[-2].b), (yyvsp[0].b), 0); }
-#line 1542 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 12:
-#line 157 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_limit_box((yyvsp[-4].b), (yyvsp[-2].b), (yyvsp[0].b)); }
-#line 1548 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 13:
-#line 159 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_limit_box((yyvsp[-4].b), make_limit_box((yyvsp[-2].b), (yyvsp[0].b), 0), 0); }
-#line 1554 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 14:
-#line 164 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = (yyvsp[0].b); }
-#line 1560 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 15:
-#line 166 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_sqrt_box((yyvsp[0].b)); }
-#line 1566 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 16:
-#line 168 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_over_box((yyvsp[-2].b), (yyvsp[0].b)); }
-#line 1572 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 17:
-#line 170 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_small_over_box((yyvsp[-2].b), (yyvsp[0].b)); }
-#line 1578 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 18:
-#line 175 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = (yyvsp[0].b); }
-#line 1584 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 19:
-#line 177 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_script_box((yyvsp[-2].b), 0, (yyvsp[0].b)); }
-#line 1590 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 20:
-#line 182 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = (yyvsp[0].b); }
-#line 1596 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 21:
-#line 184 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_script_box((yyvsp[-2].b), (yyvsp[0].b), 0); }
-#line 1602 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 22:
-#line 186 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_script_box((yyvsp[-4].b), (yyvsp[-2].b), (yyvsp[0].b)); }
-#line 1608 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 23:
-#line 191 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = split_text((yyvsp[0].str)); }
-#line 1614 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 24:
-#line 193 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new quoted_text_box((yyvsp[0].str)); }
-#line 1620 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 25:
-#line 195 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = split_text((yyvsp[0].str)); }
-#line 1626 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 26:
-#line 197 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new quoted_text_box((yyvsp[0].str)); }
-#line 1632 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 27:
-#line 199 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new half_space_box; }
-#line 1638 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 28:
-#line 201 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new space_box; }
-#line 1644 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 29:
-#line 203 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new tab_box; }
-#line 1650 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 30:
-#line 205 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = (yyvsp[-1].b); }
-#line 1656 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 31:
-#line 207 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[0].pb)->set_alignment(CENTER_ALIGN); (yyval.b) = (yyvsp[0].pb); }
-#line 1662 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 32:
-#line 209 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[0].pb)->set_alignment(LEFT_ALIGN); (yyval.b) = (yyvsp[0].pb); }
-#line 1668 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 33:
-#line 211 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[0].pb)->set_alignment(RIGHT_ALIGN); (yyval.b) = (yyvsp[0].pb); }
-#line 1674 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 34:
-#line 213 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[0].pb)->set_alignment(CENTER_ALIGN); (yyval.b) = (yyvsp[0].pb); }
-#line 1680 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 35:
-#line 215 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = (yyvsp[-1].mb); }
-#line 1686 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 36:
-#line 217 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_delim_box((yyvsp[-3].str), (yyvsp[-2].b), (yyvsp[0].str)); }
-#line 1692 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 37:
-#line 219 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_delim_box((yyvsp[-1].str), (yyvsp[0].b), 0); }
-#line 1698 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 38:
-#line 221 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_overline_box((yyvsp[-1].b)); }
-#line 1704 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 39:
-#line 223 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_underline_box((yyvsp[-1].b)); }
-#line 1710 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 40:
-#line 225 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_prime_box((yyvsp[-1].b)); }
-#line 1716 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 41:
-#line 227 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_accent_box((yyvsp[-2].b), (yyvsp[0].b)); }
-#line 1722 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 42:
-#line 229 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_uaccent_box((yyvsp[-2].b), (yyvsp[0].b)); }
-#line 1728 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 43:
-#line 231 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new font_box(strsave(get_grfont()), (yyvsp[0].b)); }
-#line 1734 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 44:
-#line 233 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new font_box(strsave(get_gbfont()), (yyvsp[0].b)); }
-#line 1740 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 45:
-#line 235 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new font_box(strsave(get_gfont()), (yyvsp[0].b)); }
-#line 1746 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 46:
-#line 237 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new fat_box((yyvsp[0].b)); }
-#line 1752 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 47:
-#line 239 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new font_box((yyvsp[-1].str), (yyvsp[0].b)); }
-#line 1758 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 48:
-#line 241 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new size_box((yyvsp[-1].str), (yyvsp[0].b)); }
-#line 1764 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 49:
-#line 243 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new hmotion_box((yyvsp[-1].n), (yyvsp[0].b)); }
-#line 1770 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 50:
-#line 245 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new hmotion_box(-(yyvsp[-1].n), (yyvsp[0].b)); }
-#line 1776 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 51:
-#line 247 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new vmotion_box((yyvsp[-1].n), (yyvsp[0].b)); }
-#line 1782 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 52:
-#line 249 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new vmotion_box(-(yyvsp[-1].n), (yyvsp[0].b)); }
-#line 1788 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 53:
-#line 251 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[0].b)->set_spacing_type((yyvsp[-1].str)); (yyval.b) = (yyvsp[0].b); }
-#line 1794 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 54:
-#line 253 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = new vcenter_box((yyvsp[0].b)); }
-#line 1800 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 55:
-#line 255 "eqn.y" /* yacc.c:1646  */
-    { (yyval.b) = make_special_box((yyvsp[-1].str), (yyvsp[0].b)); }
-#line 1806 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 56:
-#line 260 "eqn.y" /* yacc.c:1646  */
-    {
-		  int n;
-		  if (sscanf((yyvsp[0].str), "%d", &n) == 1)
-		    (yyval.n) = n;
-		  a_delete (yyvsp[0].str);
-		}
-#line 1817 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 57:
-#line 270 "eqn.y" /* yacc.c:1646  */
-    { (yyval.pb) = new pile_box((yyvsp[0].b)); }
-#line 1823 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 58:
-#line 272 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[-2].pb)->append((yyvsp[0].b)); (yyval.pb) = (yyvsp[-2].pb); }
-#line 1829 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 59:
-#line 277 "eqn.y" /* yacc.c:1646  */
-    { (yyval.pb) = (yyvsp[-1].pb); }
-#line 1835 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 60:
-#line 279 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[-1].pb)->set_space((yyvsp[-3].n)); (yyval.pb) = (yyvsp[-1].pb); }
-#line 1841 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 61:
-#line 284 "eqn.y" /* yacc.c:1646  */
-    { (yyval.mb) = new matrix_box((yyvsp[0].col)); }
-#line 1847 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 62:
-#line 286 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[-1].mb)->append((yyvsp[0].col)); (yyval.mb) = (yyvsp[-1].mb); }
-#line 1853 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 63:
-#line 291 "eqn.y" /* yacc.c:1646  */
-    { (yyval.col) = new column((yyvsp[0].b)); }
-#line 1859 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 64:
-#line 293 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[-2].col)->append((yyvsp[0].b)); (yyval.col) = (yyvsp[-2].col); }
-#line 1865 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 65:
-#line 298 "eqn.y" /* yacc.c:1646  */
-    { (yyval.col) = (yyvsp[-1].col); }
-#line 1871 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 66:
-#line 300 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[-1].col)->set_space((yyvsp[-3].n)); (yyval.col) = (yyvsp[-1].col); }
-#line 1877 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 67:
-#line 305 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[0].col)->set_alignment(CENTER_ALIGN); (yyval.col) = (yyvsp[0].col); }
-#line 1883 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 68:
-#line 307 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[0].col)->set_alignment(LEFT_ALIGN); (yyval.col) = (yyvsp[0].col); }
-#line 1889 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 69:
-#line 309 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[0].col)->set_alignment(RIGHT_ALIGN); (yyval.col) = (yyvsp[0].col); }
-#line 1895 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 70:
-#line 311 "eqn.y" /* yacc.c:1646  */
-    { (yyvsp[0].col)->set_alignment(CENTER_ALIGN); (yyval.col) = (yyvsp[0].col); }
-#line 1901 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 71:
-#line 315 "eqn.y" /* yacc.c:1646  */
-    { (yyval.str) = (yyvsp[0].str); }
-#line 1907 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 72:
-#line 317 "eqn.y" /* yacc.c:1646  */
-    { (yyval.str) = (yyvsp[0].str); }
-#line 1913 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 73:
-#line 322 "eqn.y" /* yacc.c:1646  */
-    { (yyval.str) = (yyvsp[0].str); }
-#line 1919 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 74:
-#line 324 "eqn.y" /* yacc.c:1646  */
-    { (yyval.str) = strsave("{"); }
-#line 1925 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-  case 75:
-#line 326 "eqn.y" /* yacc.c:1646  */
-    { (yyval.str) = strsave("}"); }
-#line 1931 "eqn.cpp" /* yacc.c:1646  */
-    break;
-
-
-#line 1935 "eqn.cpp" /* yacc.c:1646  */
-      default: break;
-    }
-  /* User semantic actions sometimes alter yychar, and that requires
-     that yytoken be updated with the new translation.  We take the
-     approach of translating immediately before every use of yytoken.
-     One alternative is translating here after every semantic action,
-     but that translation would be missed if the semantic action invokes
-     YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
-     if it invokes YYBACKUP.  In the case of YYABORT or YYACCEPT, an
-     incorrect destructor might then be invoked immediately.  In the
-     case of YYERROR or YYBACKUP, subsequent parser actions might lead
-     to an incorrect destructor call or verbose syntax error message
-     before the lookahead is translated.  */
-  YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
-
-  YYPOPSTACK (yylen);
-  yylen = 0;
-  YY_STACK_PRINT (yyss, yyssp);
-
-  *++yyvsp = yyval;
-
-  /* Now 'shift' the result of the reduction.  Determine what state
-     that goes to, based on the state we popped back to and the rule
-     number reduced by.  */
-
-  yyn = yyr1[yyn];
-
-  yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
-  if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
-    yystate = yytable[yystate];
-  else
-    yystate = yydefgoto[yyn - YYNTOKENS];
-
-  goto yynewstate;
-
-
-/*--------------------------------------.
-| yyerrlab -- here on detecting error.  |
-`--------------------------------------*/
-yyerrlab:
-  /* Make sure we have latest lookahead translation.  See comments at
-     user semantic actions for why this is necessary.  */
-  yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
-
-  /* If not already recovering from an error, report this error.  */
-  if (!yyerrstatus)
-    {
-      ++yynerrs;
-#if ! YYERROR_VERBOSE
-      yyerror (YY_("syntax error"));
-#else
-# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \
-                                        yyssp, yytoken)
-      {
-        char const *yymsgp = YY_("syntax error");
-        int yysyntax_error_status;
-        yysyntax_error_status = YYSYNTAX_ERROR;
-        if (yysyntax_error_status == 0)
-          yymsgp = yymsg;
-        else if (yysyntax_error_status == 1)
-          {
-            if (yymsg != yymsgbuf)
-              YYSTACK_FREE (yymsg);
-            yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
-            if (!yymsg)
-              {
-                yymsg = yymsgbuf;
-                yymsg_alloc = sizeof yymsgbuf;
-                yysyntax_error_status = 2;
-              }
-            else
-              {
-                yysyntax_error_status = YYSYNTAX_ERROR;
-                yymsgp = yymsg;
-              }
-          }
-        yyerror (yymsgp);
-        if (yysyntax_error_status == 2)
-          goto yyexhaustedlab;
-      }
-# undef YYSYNTAX_ERROR
-#endif
-    }
-
-
-
-  if (yyerrstatus == 3)
-    {
-      /* If just tried and failed to reuse lookahead token after an
-         error, discard it.  */
-
-      if (yychar <= YYEOF)
-        {
-          /* Return failure if at end of input.  */
-          if (yychar == YYEOF)
-            YYABORT;
-        }
-      else
-        {
-          yydestruct ("Error: discarding",
-                      yytoken, &yylval);
-          yychar = YYEMPTY;
-        }
-    }
-
-  /* Else will try to reuse lookahead token after shifting the error
-     token.  */
-  goto yyerrlab1;
-
-
-/*---------------------------------------------------.
-| yyerrorlab -- error raised explicitly by YYERROR.  |
-`---------------------------------------------------*/
-yyerrorlab:
-
-  /* Pacify compilers like GCC when the user code never invokes
-     YYERROR and the label yyerrorlab therefore never appears in user
-     code.  */
-  if (/*CONSTCOND*/ 0)
-     goto yyerrorlab;
-
-  /* Do not reclaim the symbols of the rule whose action triggered
-     this YYERROR.  */
-  YYPOPSTACK (yylen);
-  yylen = 0;
-  YY_STACK_PRINT (yyss, yyssp);
-  yystate = *yyssp;
-  goto yyerrlab1;
-
-
-/*-------------------------------------------------------------.
-| yyerrlab1 -- common code for both syntax error and YYERROR.  |
-`-------------------------------------------------------------*/
-yyerrlab1:
-  yyerrstatus = 3;      /* Each real token shifted decrements this.  */
-
-  for (;;)
-    {
-      yyn = yypact[yystate];
-      if (!yypact_value_is_default (yyn))
-        {
-          yyn += YYTERROR;
-          if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
-            {
-              yyn = yytable[yyn];
-              if (0 < yyn)
-                break;
-            }
-        }
-
-      /* Pop the current state because it cannot handle the error token.  */
-      if (yyssp == yyss)
-        YYABORT;
-
-
-      yydestruct ("Error: popping",
-                  yystos[yystate], yyvsp);
-      YYPOPSTACK (1);
-      yystate = *yyssp;
-      YY_STACK_PRINT (yyss, yyssp);
-    }
-
-  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-  *++yyvsp = yylval;
-  YY_IGNORE_MAYBE_UNINITIALIZED_END
-
-
-  /* Shift the error token.  */
-  YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
-
-  yystate = yyn;
-  goto yynewstate;
-
-
-/*-------------------------------------.
-| yyacceptlab -- YYACCEPT comes here.  |
-`-------------------------------------*/
-yyacceptlab:
-  yyresult = 0;
-  goto yyreturn;
-
-/*-----------------------------------.
-| yyabortlab -- YYABORT comes here.  |
-`-----------------------------------*/
-yyabortlab:
-  yyresult = 1;
-  goto yyreturn;
-
-#if !defined yyoverflow || YYERROR_VERBOSE
-/*-------------------------------------------------.
-| yyexhaustedlab -- memory exhaustion comes here.  |
-`-------------------------------------------------*/
-yyexhaustedlab:
-  yyerror (YY_("memory exhausted"));
-  yyresult = 2;
-  /* Fall through.  */
-#endif
-
-yyreturn:
-  if (yychar != YYEMPTY)
-    {
-      /* Make sure we have latest lookahead translation.  See comments at
-         user semantic actions for why this is necessary.  */
-      yytoken = YYTRANSLATE (yychar);
-      yydestruct ("Cleanup: discarding lookahead",
-                  yytoken, &yylval);
-    }
-  /* Do not reclaim the symbols of the rule whose action triggered
-     this YYABORT or YYACCEPT.  */
-  YYPOPSTACK (yylen);
-  YY_STACK_PRINT (yyss, yyssp);
-  while (yyssp != yyss)
-    {
-      yydestruct ("Cleanup: popping",
-                  yystos[*yyssp], yyvsp);
-      YYPOPSTACK (1);
-    }
-#ifndef yyoverflow
-  if (yyss != yyssa)
-    YYSTACK_FREE (yyss);
-#endif
-#if YYERROR_VERBOSE
-  if (yymsg != yymsgbuf)
-    YYSTACK_FREE (yymsg);
-#endif
-  return yyresult;
-}
-#line 329 "eqn.y" /* yacc.c:1906  */
-
diff --git a/src/preproc/grn/main.cpp b/src/preproc/grn/main.cpp
index 55fc27a..ad270c2 100644
--- a/src/preproc/grn/main.cpp
+++ b/src/preproc/grn/main.cpp
@@ -369,6 +369,9 @@ main(int argc,
       } else
 	fputs(inputline, stdout);
     }
+
+    if (fp != stdin)
+        fclose(fp);
   }
 
   return 0;
diff --git a/src/preproc/html/pre-html.cpp b/src/preproc/html/pre-html.cpp
index 978721a..c8b1fc6 100644
--- a/src/preproc/html/pre-html.cpp
+++ b/src/preproc/html/pre-html.cpp
@@ -935,6 +935,8 @@ int imageList::createPage(int pageno)
     sys_fatal("make_message");
   html_system(s, 1);
 
+  free(s);
+
   s = make_message("echo showpage | "
 		   "%s%s -q -dBATCH -dSAFER "
 		   "-dDEVICEHEIGHTPOINTS=792 "
@@ -1461,6 +1463,8 @@ int char_buffer::run_output_filter(int filter, int argc, char **argv)
 int char_buffer::do_html(int argc, char *argv[])
 {
   string s;
+  char **new_argv;
+  int ret;
 
   alterDeviceTo(argc, argv, 0);
   argv += troff_arg;		// skip all arguments up to groff
@@ -1472,14 +1476,20 @@ int char_buffer::do_html(int argc, char *argv[])
   s += macroset_template;	// do not combine these statements,
 				// otherwise they will not work
   s += '\0';                	// the trailing `\0' is ignored
-  argv = addRegDef(argc, argv, s.contents());
+  new_argv = addRegDef(argc, argv, s.contents());
+  free(argv);
+  argv = new_argv;
   argc++;
 
   if (dialect == xhtml) {
-    argv = addRegDef(argc, argv, "-rxhtml=1");
+    new_argv = addRegDef(argc, argv, "-rxhtml=1");
+    free(argv);
+    argv = new_argv;
     argc++;
     if (eqn_flag) {
-      argv = addRegDef(argc, argv, "-e");
+      new_argv = addRegDef(argc, argv, "-e");
+      free(argv);
+      argv = new_argv;
       argc++;
     }
   }
@@ -1494,7 +1504,9 @@ int char_buffer::do_html(int argc, char *argv[])
   }
 #endif
 
-  return run_output_filter(HTML_OUTPUT_FILTER, argc, argv);
+  ret = run_output_filter(HTML_OUTPUT_FILTER, argc, argv);
+  free(argv);
+  return ret;
 }
 
 /*
@@ -1504,6 +1516,8 @@ int char_buffer::do_html(int argc, char *argv[])
 int char_buffer::do_image(int argc, char *argv[])
 {
   string s;
+  char **new_argv;
+  int ret;
 
   alterDeviceTo(argc, argv, 1);
   argv += troff_arg;		// skip all arguments up to troff/groff
@@ -1514,19 +1528,27 @@ int char_buffer::do_image(int argc, char *argv[])
   s = "-dwww-image-template=";
   s += macroset_template;
   s += '\0';
-  argv = addRegDef(argc, argv, s.contents());
+  new_argv = addRegDef(argc, argv, s.contents());
+  free(argv);
+  argv = new_argv;
   argc++;
 
   // override local settings and produce a page size letter postscript file
-  argv = addRegDef(argc, argv, "-P-pletter");
+  new_argv = addRegDef(argc, argv, "-P-pletter");
+  free(argv);
+  argv = new_argv;
   argc++;
 
   if (dialect == xhtml) {
     if (eqn_flag) {
-      argv = addRegDef(argc, argv, "-rxhtml=1");
+      new_argv = addRegDef(argc, argv, "-rxhtml=1");
+      free(argv);
+      argv = new_argv;
       argc++;
     }
-    argv = addRegDef(argc, argv, "-e");
+    new_argv = addRegDef(argc, argv, "-e");
+    free(argv);
+    argv = new_argv;
     argc++;
   }
 
@@ -1540,7 +1562,9 @@ int char_buffer::do_image(int argc, char *argv[])
   }
 #endif
 
-  return run_output_filter(IMAGE_OUTPUT_FILTER, argc, argv);
+  ret = run_output_filter(IMAGE_OUTPUT_FILTER, argc, argv);
+  free(argv);
+  return ret;
 }
 
 static char_buffer inputFile;
@@ -1686,8 +1710,10 @@ static int scanArguments(int argc, char **argv)
   while (i < argc) {
     if (strcmp(argv[i], troff_name) == 0)
       troff_arg = i;
-    else if (argv[i][0] != '-')
+    else if (argv[i][0] != '-') {
+      a_delete troff_name;
       return i;
+    }
     i++;
   }
   a_delete troff_name;
diff --git a/src/preproc/pic/pic.cpp b/src/preproc/pic/pic.cpp
deleted file mode 100644
index 34dada5..0000000
--- a/src/preproc/pic/pic.cpp
+++ /dev/null
@@ -1,5008 +0,0 @@
-/* A Bison parser, made by GNU Bison 3.0.2.  */
-
-/* Bison implementation for Yacc-like parsers in C
-
-   Copyright (C) 1984, 1989-1990, 2000-2013 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* As a special exception, you may create a larger work that contains
-   part or all of the Bison parser skeleton and distribute that work
-   under terms of your choice, so long as that work isn't itself a
-   parser generator using the skeleton or a modified version thereof
-   as a parser skeleton.  Alternatively, if you modify or redistribute
-   the parser skeleton itself, you may (at your option) remove this
-   special exception, which will cause the skeleton and the resulting
-   Bison output files to be licensed under the GNU General Public
-   License without this special exception.
-
-   This special exception was added by the Free Software Foundation in
-   version 2.2 of Bison.  */
-
-/* C LALR(1) parser skeleton written by Richard Stallman, by
-   simplifying the original so-called "semantic" parser.  */
-
-/* All symbols defined below should begin with yy or YY, to avoid
-   infringing on user name space.  This should be done even for local
-   variables, as they might otherwise be expanded by user macros.
-   There are some unavoidable exceptions within include files to
-   define necessary library symbols; they are noted "INFRINGES ON
-   USER NAME SPACE" below.  */
-
-/* Identify Bison output.  */
-#define YYBISON 1
-
-/* Bison version.  */
-#define YYBISON_VERSION "3.0.2"
-
-/* Skeleton name.  */
-#define YYSKELETON_NAME "yacc.c"
-
-/* Pure parsers.  */
-#define YYPURE 0
-
-/* Push parsers.  */
-#define YYPUSH 0
-
-/* Pull parsers.  */
-#define YYPULL 1
-
-
-
-
-/* Copy the first part of user declarations.  */
-#line 19 "pic.y" /* yacc.c:339  */
-
-#include "pic.h"
-#include "ptable.h"
-#include "object.h"
-
-extern int delim_flag;
-extern void copy_rest_thru(const char *, const char *);
-extern void copy_file_thru(const char *, const char *, const char *);
-extern void push_body(const char *);
-extern void do_for(char *var, double from, double to,
-		   int by_is_multiplicative, double by, char *body);
-extern void do_lookahead();
-
-/* Maximum number of characters produced by printf("%g") */
-#define GDIGITS 14
-
-int yylex();
-void yyerror(const char *);
-
-void reset(const char *nm);
-void reset_all();
-
-place *lookup_label(const char *);
-void define_label(const char *label, const place *pl);
-
-direction current_direction;
-position current_position;
-
-implement_ptable(place)
-
-PTABLE(place) top_table;
-
-PTABLE(place) *current_table = &top_table;
-saved_state *current_saved_state = 0;
-
-object_list olist;
-
-const char *ordinal_postfix(int n);
-const char *object_type_name(object_type type);
-char *format_number(const char *form, double n);
-char *do_sprintf(const char *form, const double *v, int nv);
-
-
-#line 110 "pic.cpp" /* yacc.c:339  */
-
-# ifndef YY_NULLPTR
-#  if defined __cplusplus && 201103L <= __cplusplus
-#   define YY_NULLPTR nullptr
-#  else
-#   define YY_NULLPTR 0
-#  endif
-# endif
-
-/* Enabling verbose error messages.  */
-#ifdef YYERROR_VERBOSE
-# undef YYERROR_VERBOSE
-# define YYERROR_VERBOSE 1
-#else
-# define YYERROR_VERBOSE 0
-#endif
-
-/* In a future release of Bison, this section will be replaced
-   by #include "y.tab.h".  */
-#ifndef YY_YY_Y_TAB_H_INCLUDED
-# define YY_YY_Y_TAB_H_INCLUDED
-/* Debug traces.  */
-#ifndef YYDEBUG
-# define YYDEBUG 0
-#endif
-#if YYDEBUG
-extern int yydebug;
-#endif
-
-/* Token type.  */
-#ifndef YYTOKENTYPE
-# define YYTOKENTYPE
-  enum yytokentype
-  {
-    LABEL = 258,
-    VARIABLE = 259,
-    NUMBER = 260,
-    TEXT = 261,
-    COMMAND_LINE = 262,
-    DELIMITED = 263,
-    ORDINAL = 264,
-    TH = 265,
-    LEFT_ARROW_HEAD = 266,
-    RIGHT_ARROW_HEAD = 267,
-    DOUBLE_ARROW_HEAD = 268,
-    LAST = 269,
-    BOX = 270,
-    CIRCLE = 271,
-    ELLIPSE = 272,
-    ARC = 273,
-    LINE = 274,
-    ARROW = 275,
-    MOVE = 276,
-    SPLINE = 277,
-    HEIGHT = 278,
-    RADIUS = 279,
-    FIGNAME = 280,
-    WIDTH = 281,
-    DIAMETER = 282,
-    UP = 283,
-    DOWN = 284,
-    RIGHT = 285,
-    LEFT = 286,
-    FROM = 287,
-    TO = 288,
-    AT = 289,
-    WITH = 290,
-    BY = 291,
-    THEN = 292,
-    SOLID = 293,
-    DOTTED = 294,
-    DASHED = 295,
-    CHOP = 296,
-    SAME = 297,
-    INVISIBLE = 298,
-    LJUST = 299,
-    RJUST = 300,
-    ABOVE = 301,
-    BELOW = 302,
-    OF = 303,
-    THE = 304,
-    WAY = 305,
-    BETWEEN = 306,
-    AND = 307,
-    HERE = 308,
-    DOT_N = 309,
-    DOT_E = 310,
-    DOT_W = 311,
-    DOT_S = 312,
-    DOT_NE = 313,
-    DOT_SE = 314,
-    DOT_NW = 315,
-    DOT_SW = 316,
-    DOT_C = 317,
-    DOT_START = 318,
-    DOT_END = 319,
-    DOT_X = 320,
-    DOT_Y = 321,
-    DOT_HT = 322,
-    DOT_WID = 323,
-    DOT_RAD = 324,
-    SIN = 325,
-    COS = 326,
-    ATAN2 = 327,
-    LOG = 328,
-    EXP = 329,
-    SQRT = 330,
-    K_MAX = 331,
-    K_MIN = 332,
-    INT = 333,
-    RAND = 334,
-    SRAND = 335,
-    COPY = 336,
-    THRU = 337,
-    TOP = 338,
-    BOTTOM = 339,
-    UPPER = 340,
-    LOWER = 341,
-    SH = 342,
-    PRINT = 343,
-    CW = 344,
-    CCW = 345,
-    FOR = 346,
-    DO = 347,
-    IF = 348,
-    ELSE = 349,
-    ANDAND = 350,
-    OROR = 351,
-    NOTEQUAL = 352,
-    EQUALEQUAL = 353,
-    LESSEQUAL = 354,
-    GREATEREQUAL = 355,
-    LEFT_CORNER = 356,
-    RIGHT_CORNER = 357,
-    NORTH = 358,
-    SOUTH = 359,
-    EAST = 360,
-    WEST = 361,
-    CENTER = 362,
-    END = 363,
-    START = 364,
-    RESET = 365,
-    UNTIL = 366,
-    PLOT = 367,
-    THICKNESS = 368,
-    FILL = 369,
-    COLORED = 370,
-    OUTLINED = 371,
-    SHADED = 372,
-    XSLANTED = 373,
-    YSLANTED = 374,
-    ALIGNED = 375,
-    SPRINTF = 376,
-    COMMAND = 377,
-    DEFINE = 378,
-    UNDEF = 379
-  };
-#endif
-/* Tokens.  */
-#define LABEL 258
-#define VARIABLE 259
-#define NUMBER 260
-#define TEXT 261
-#define COMMAND_LINE 262
-#define DELIMITED 263
-#define ORDINAL 264
-#define TH 265
-#define LEFT_ARROW_HEAD 266
-#define RIGHT_ARROW_HEAD 267
-#define DOUBLE_ARROW_HEAD 268
-#define LAST 269
-#define BOX 270
-#define CIRCLE 271
-#define ELLIPSE 272
-#define ARC 273
-#define LINE 274
-#define ARROW 275
-#define MOVE 276
-#define SPLINE 277
-#define HEIGHT 278
-#define RADIUS 279
-#define FIGNAME 280
-#define WIDTH 281
-#define DIAMETER 282
-#define UP 283
-#define DOWN 284
-#define RIGHT 285
-#define LEFT 286
-#define FROM 287
-#define TO 288
-#define AT 289
-#define WITH 290
-#define BY 291
-#define THEN 292
-#define SOLID 293
-#define DOTTED 294
-#define DASHED 295
-#define CHOP 296
-#define SAME 297
-#define INVISIBLE 298
-#define LJUST 299
-#define RJUST 300
-#define ABOVE 301
-#define BELOW 302
-#define OF 303
-#define THE 304
-#define WAY 305
-#define BETWEEN 306
-#define AND 307
-#define HERE 308
-#define DOT_N 309
-#define DOT_E 310
-#define DOT_W 311
-#define DOT_S 312
-#define DOT_NE 313
-#define DOT_SE 314
-#define DOT_NW 315
-#define DOT_SW 316
-#define DOT_C 317
-#define DOT_START 318
-#define DOT_END 319
-#define DOT_X 320
-#define DOT_Y 321
-#define DOT_HT 322
-#define DOT_WID 323
-#define DOT_RAD 324
-#define SIN 325
-#define COS 326
-#define ATAN2 327
-#define LOG 328
-#define EXP 329
-#define SQRT 330
-#define K_MAX 331
-#define K_MIN 332
-#define INT 333
-#define RAND 334
-#define SRAND 335
-#define COPY 336
-#define THRU 337
-#define TOP 338
-#define BOTTOM 339
-#define UPPER 340
-#define LOWER 341
-#define SH 342
-#define PRINT 343
-#define CW 344
-#define CCW 345
-#define FOR 346
-#define DO 347
-#define IF 348
-#define ELSE 349
-#define ANDAND 350
-#define OROR 351
-#define NOTEQUAL 352
-#define EQUALEQUAL 353
-#define LESSEQUAL 354
-#define GREATEREQUAL 355
-#define LEFT_CORNER 356
-#define RIGHT_CORNER 357
-#define NORTH 358
-#define SOUTH 359
-#define EAST 360
-#define WEST 361
-#define CENTER 362
-#define END 363
-#define START 364
-#define RESET 365
-#define UNTIL 366
-#define PLOT 367
-#define THICKNESS 368
-#define FILL 369
-#define COLORED 370
-#define OUTLINED 371
-#define SHADED 372
-#define XSLANTED 373
-#define YSLANTED 374
-#define ALIGNED 375
-#define SPRINTF 376
-#define COMMAND 377
-#define DEFINE 378
-#define UNDEF 379
-
-/* Value type.  */
-#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
-typedef union YYSTYPE YYSTYPE;
-union YYSTYPE
-{
-#line 65 "pic.y" /* yacc.c:355  */
-
-	char *str;
-	int n;
-	double x;
-	struct { double x, y; } pair;
-	struct { double x; char *body; } if_data;
-	struct { char *str; const char *filename; int lineno; } lstr;
-	struct { double *v; int nv; int maxv; } dv;
-	struct { double val; int is_multiplicative; } by;
-	place pl;
-	object *obj;
-	corner crn;
-	path *pth;
-	object_spec *spec;
-	saved_state *pstate;
-	graphics_state state;
-	object_type obtype;
-
-#line 417 "pic.cpp" /* yacc.c:355  */
-};
-# define YYSTYPE_IS_TRIVIAL 1
-# define YYSTYPE_IS_DECLARED 1
-#endif
-
-
-extern YYSTYPE yylval;
-
-int yyparse (void);
-
-#endif /* !YY_YY_Y_TAB_H_INCLUDED  */
-
-/* Copy the second part of user declarations.  */
-
-#line 432 "pic.cpp" /* yacc.c:358  */
-
-#ifdef short
-# undef short
-#endif
-
-#ifdef YYTYPE_UINT8
-typedef YYTYPE_UINT8 yytype_uint8;
-#else
-typedef unsigned char yytype_uint8;
-#endif
-
-#ifdef YYTYPE_INT8
-typedef YYTYPE_INT8 yytype_int8;
-#else
-typedef signed char yytype_int8;
-#endif
-
-#ifdef YYTYPE_UINT16
-typedef YYTYPE_UINT16 yytype_uint16;
-#else
-typedef unsigned short int yytype_uint16;
-#endif
-
-#ifdef YYTYPE_INT16
-typedef YYTYPE_INT16 yytype_int16;
-#else
-typedef short int yytype_int16;
-#endif
-
-#ifndef YYSIZE_T
-# ifdef __SIZE_TYPE__
-#  define YYSIZE_T __SIZE_TYPE__
-# elif defined size_t
-#  define YYSIZE_T size_t
-# elif ! defined YYSIZE_T
-#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
-#  define YYSIZE_T size_t
-# else
-#  define YYSIZE_T unsigned int
-# endif
-#endif
-
-#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
-
-#ifndef YY_
-# if defined YYENABLE_NLS && YYENABLE_NLS
-#  if ENABLE_NLS
-#   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
-#   define YY_(Msgid) dgettext ("bison-runtime", Msgid)
-#  endif
-# endif
-# ifndef YY_
-#  define YY_(Msgid) Msgid
-# endif
-#endif
-
-#ifndef YY_ATTRIBUTE
-# if (defined __GNUC__                                               \
-      && (2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__)))  \
-     || defined __SUNPRO_C && 0x5110 <= __SUNPRO_C
-#  define YY_ATTRIBUTE(Spec) __attribute__(Spec)
-# else
-#  define YY_ATTRIBUTE(Spec) /* empty */
-# endif
-#endif
-
-#ifndef YY_ATTRIBUTE_PURE
-# define YY_ATTRIBUTE_PURE   YY_ATTRIBUTE ((__pure__))
-#endif
-
-#ifndef YY_ATTRIBUTE_UNUSED
-# define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__))
-#endif
-
-#if !defined _Noreturn \
-     && (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112)
-# if defined _MSC_VER && 1200 <= _MSC_VER
-#  define _Noreturn __declspec (noreturn)
-# else
-#  define _Noreturn YY_ATTRIBUTE ((__noreturn__))
-# endif
-#endif
-
-/* Suppress unused-variable warnings by "using" E.  */
-#if ! defined lint || defined __GNUC__
-# define YYUSE(E) ((void) (E))
-#else
-# define YYUSE(E) /* empty */
-#endif
-
-#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
-/* Suppress an incorrect diagnostic about yylval being uninitialized.  */
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
-    _Pragma ("GCC diagnostic push") \
-    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
-    _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
-# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
-    _Pragma ("GCC diagnostic pop")
-#else
-# define YY_INITIAL_VALUE(Value) Value
-#endif
-#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-# define YY_IGNORE_MAYBE_UNINITIALIZED_END
-#endif
-#ifndef YY_INITIAL_VALUE
-# define YY_INITIAL_VALUE(Value) /* Nothing. */
-#endif
-
-
-#if ! defined yyoverflow || YYERROR_VERBOSE
-
-/* The parser invokes alloca or malloc; define the necessary symbols.  */
-
-# ifdef YYSTACK_USE_ALLOCA
-#  if YYSTACK_USE_ALLOCA
-#   ifdef __GNUC__
-#    define YYSTACK_ALLOC __builtin_alloca
-#   elif defined __BUILTIN_VA_ARG_INCR
-#    include <alloca.h> /* INFRINGES ON USER NAME SPACE */
-#   elif defined _AIX
-#    define YYSTACK_ALLOC __alloca
-#   elif defined _MSC_VER
-#    include <malloc.h> /* INFRINGES ON USER NAME SPACE */
-#    define alloca _alloca
-#   else
-#    define YYSTACK_ALLOC alloca
-#    if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS
-#     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-      /* Use EXIT_SUCCESS as a witness for stdlib.h.  */
-#     ifndef EXIT_SUCCESS
-#      define EXIT_SUCCESS 0
-#     endif
-#    endif
-#   endif
-#  endif
-# endif
-
-# ifdef YYSTACK_ALLOC
-   /* Pacify GCC's 'empty if-body' warning.  */
-#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
-#  ifndef YYSTACK_ALLOC_MAXIMUM
-    /* The OS might guarantee only one guard page at the bottom of the stack,
-       and a page size can be as small as 4096 bytes.  So we cannot safely
-       invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
-       to allow for a few compiler-allocated temporary stack slots.  */
-#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
-#  endif
-# else
-#  define YYSTACK_ALLOC YYMALLOC
-#  define YYSTACK_FREE YYFREE
-#  ifndef YYSTACK_ALLOC_MAXIMUM
-#   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
-#  endif
-#  if (defined __cplusplus && ! defined EXIT_SUCCESS \
-       && ! ((defined YYMALLOC || defined malloc) \
-             && (defined YYFREE || defined free)))
-#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-#   ifndef EXIT_SUCCESS
-#    define EXIT_SUCCESS 0
-#   endif
-#  endif
-#  ifndef YYMALLOC
-#   define YYMALLOC malloc
-#   if ! defined malloc && ! defined EXIT_SUCCESS
-void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
-#   endif
-#  endif
-#  ifndef YYFREE
-#   define YYFREE free
-#   if ! defined free && ! defined EXIT_SUCCESS
-void free (void *); /* INFRINGES ON USER NAME SPACE */
-#   endif
-#  endif
-# endif
-#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
-
-
-#if (! defined yyoverflow \
-     && (! defined __cplusplus \
-         || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
-
-/* A type that is properly aligned for any stack member.  */
-union yyalloc
-{
-  yytype_int16 yyss_alloc;
-  YYSTYPE yyvs_alloc;
-};
-
-/* The size of the maximum gap between one aligned stack and the next.  */
-# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
-
-/* The size of an array large to enough to hold all stacks, each with
-   N elements.  */
-# define YYSTACK_BYTES(N) \
-     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
-      + YYSTACK_GAP_MAXIMUM)
-
-# define YYCOPY_NEEDED 1
-
-/* Relocate STACK from its old location to the new one.  The
-   local variables YYSIZE and YYSTACKSIZE give the old and new number of
-   elements in the stack, and YYPTR gives the new location of the
-   stack.  Advance YYPTR to a properly aligned location for the next
-   stack.  */
-# define YYSTACK_RELOCATE(Stack_alloc, Stack)                           \
-    do                                                                  \
-      {                                                                 \
-        YYSIZE_T yynewbytes;                                            \
-        YYCOPY (&yyptr->Stack_alloc, Stack, yysize);                    \
-        Stack = &yyptr->Stack_alloc;                                    \
-        yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
-        yyptr += yynewbytes / sizeof (*yyptr);                          \
-      }                                                                 \
-    while (0)
-
-#endif
-
-#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
-/* Copy COUNT objects from SRC to DST.  The source and destination do
-   not overlap.  */
-# ifndef YYCOPY
-#  if defined __GNUC__ && 1 < __GNUC__
-#   define YYCOPY(Dst, Src, Count) \
-      __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src)))
-#  else
-#   define YYCOPY(Dst, Src, Count)              \
-      do                                        \
-        {                                       \
-          YYSIZE_T yyi;                         \
-          for (yyi = 0; yyi < (Count); yyi++)   \
-            (Dst)[yyi] = (Src)[yyi];            \
-        }                                       \
-      while (0)
-#  endif
-# endif
-#endif /* !YYCOPY_NEEDED */
-
-/* YYFINAL -- State number of the termination state.  */
-#define YYFINAL  6
-/* YYLAST -- Last index in YYTABLE.  */
-#define YYLAST   2438
-
-/* YYNTOKENS -- Number of terminals.  */
-#define YYNTOKENS  146
-/* YYNNTS -- Number of nonterminals.  */
-#define YYNNTS  49
-/* YYNRULES -- Number of rules.  */
-#define YYNRULES  260
-/* YYNSTATES -- Number of states.  */
-#define YYNSTATES  454
-
-/* YYTRANSLATE[YYX] -- Symbol number corresponding to YYX as returned
-   by yylex, with out-of-bounds checking.  */
-#define YYUNDEFTOK  2
-#define YYMAXUTOK   379
-
-#define YYTRANSLATE(YYX)                                                \
-  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
-
-/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
-   as returned by yylex, without out-of-bounds checking.  */
-static const yytype_uint8 yytranslate[] =
-{
-       0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,   137,     2,     2,     2,   136,     2,     2,
-     126,   145,   134,   132,   129,   133,   125,   135,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,   141,   139,
-     130,   140,   131,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,   128,     2,   144,   138,     2,   127,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,   142,     2,   143,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
-       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
-      15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
-      25,    26,    27,    28,    29,    30,    31,    32,    33,    34,
-      35,    36,    37,    38,    39,    40,    41,    42,    43,    44,
-      45,    46,    47,    48,    49,    50,    51,    52,    53,    54,
-      55,    56,    57,    58,    59,    60,    61,    62,    63,    64,
-      65,    66,    67,    68,    69,    70,    71,    72,    73,    74,
-      75,    76,    77,    78,    79,    80,    81,    82,    83,    84,
-      85,    86,    87,    88,    89,    90,    91,    92,    93,    94,
-      95,    96,    97,    98,    99,   100,   101,   102,   103,   104,
-     105,   106,   107,   108,   109,   110,   111,   112,   113,   114,
-     115,   116,   117,   118,   119,   120,   121,   122,   123,   124
-};
-
-#if YYDEBUG
-  /* YYRLINE[YYN] -- Source line where rule number YYN was defined.  */
-static const yytype_uint16 yyrline[] =
-{
-       0,   275,   275,   276,   285,   290,   292,   296,   298,   302,
-     303,   307,   315,   320,   332,   334,   336,   338,   340,   345,
-     350,   357,   356,   367,   375,   377,   374,   388,   390,   387,
-     400,   399,   408,   417,   416,   430,   431,   436,   437,   441,
-     446,   451,   459,   461,   480,   487,   489,   500,   499,   511,
-     512,   517,   519,   524,   530,   536,   538,   540,   542,   544,
-     546,   548,   555,   559,   564,   572,   586,   592,   600,   607,
-     613,   606,   622,   632,   633,   638,   640,   642,   644,   649,
-     656,   663,   670,   677,   682,   687,   695,   694,   721,   727,
-     733,   739,   745,   764,   771,   778,   785,   792,   799,   806,
-     813,   820,   827,   842,   854,   860,   869,   876,   901,   905,
-     911,   917,   923,   929,   934,   940,   946,   952,   959,   968,
-     975,   991,  1008,  1013,  1018,  1023,  1028,  1033,  1038,  1043,
-    1051,  1061,  1071,  1081,  1091,  1097,  1105,  1107,  1119,  1124,
-    1154,  1156,  1162,  1171,  1173,  1178,  1183,  1188,  1193,  1198,
-    1203,  1209,  1214,  1222,  1223,  1227,  1232,  1238,  1240,  1246,
-    1252,  1258,  1267,  1277,  1279,  1288,  1290,  1298,  1300,  1305,
-    1320,  1338,  1340,  1342,  1344,  1346,  1348,  1350,  1352,  1354,
-    1359,  1361,  1369,  1373,  1375,  1383,  1385,  1391,  1397,  1403,
-    1409,  1418,  1420,  1422,  1424,  1426,  1428,  1430,  1432,  1434,
-    1436,  1438,  1440,  1442,  1444,  1446,  1448,  1450,  1452,  1454,
-    1456,  1458,  1460,  1462,  1464,  1466,  1468,  1470,  1472,  1474,
-    1476,  1478,  1480,  1485,  1487,  1492,  1497,  1505,  1507,  1514,
-    1521,  1528,  1535,  1542,  1544,  1546,  1548,  1556,  1564,  1577,
-    1579,  1581,  1590,  1599,  1612,  1621,  1630,  1639,  1641,  1643,
-    1645,  1647,  1653,  1658,  1660,  1662,  1664,  1666,  1668,  1670,
-    1672
-};
-#endif
-
-#if YYDEBUG || YYERROR_VERBOSE || 0
-/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
-   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
-static const char *const yytname[] =
-{
-  "$end", "error", "$undefined", "LABEL", "VARIABLE", "NUMBER", "TEXT",
-  "COMMAND_LINE", "DELIMITED", "ORDINAL", "TH", "LEFT_ARROW_HEAD",
-  "RIGHT_ARROW_HEAD", "DOUBLE_ARROW_HEAD", "LAST", "BOX", "CIRCLE",
-  "ELLIPSE", "ARC", "LINE", "ARROW", "MOVE", "SPLINE", "HEIGHT", "RADIUS",
-  "FIGNAME", "WIDTH", "DIAMETER", "UP", "DOWN", "RIGHT", "LEFT", "FROM",
-  "TO", "AT", "WITH", "BY", "THEN", "SOLID", "DOTTED", "DASHED", "CHOP",
-  "SAME", "INVISIBLE", "LJUST", "RJUST", "ABOVE", "BELOW", "OF", "THE",
-  "WAY", "BETWEEN", "AND", "HERE", "DOT_N", "DOT_E", "DOT_W", "DOT_S",
-  "DOT_NE", "DOT_SE", "DOT_NW", "DOT_SW", "DOT_C", "DOT_START", "DOT_END",
-  "DOT_X", "DOT_Y", "DOT_HT", "DOT_WID", "DOT_RAD", "SIN", "COS", "ATAN2",
-  "LOG", "EXP", "SQRT", "K_MAX", "K_MIN", "INT", "RAND", "SRAND", "COPY",
-  "THRU", "TOP", "BOTTOM", "UPPER", "LOWER", "SH", "PRINT", "CW", "CCW",
-  "FOR", "DO", "IF", "ELSE", "ANDAND", "OROR", "NOTEQUAL", "EQUALEQUAL",
-  "LESSEQUAL", "GREATEREQUAL", "LEFT_CORNER", "RIGHT_CORNER", "NORTH",
-  "SOUTH", "EAST", "WEST", "CENTER", "END", "START", "RESET", "UNTIL",
-  "PLOT", "THICKNESS", "FILL", "COLORED", "OUTLINED", "SHADED", "XSLANTED",
-  "YSLANTED", "ALIGNED", "SPRINTF", "COMMAND", "DEFINE", "UNDEF", "'.'",
-  "'('", "'`'", "'['", "','", "'<'", "'>'", "'+'", "'-'", "'*'", "'/'",
-  "'%'", "'!'", "'^'", "';'", "'='", "':'", "'{'", "'}'", "']'", "')'",
-  "$accept", "top", "element_list", "middle_element_list",
-  "optional_separator", "separator", "placeless_element", "$@1", "$@2",
-  "$@3", "$@4", "$@5", "$@6", "$@7", "macro_name", "reset_variables",
-  "print_args", "print_arg", "simple_if", "$@8", "until", "any_expr",
-  "text_expr", "optional_by", "element", "@9", "$@10", "optional_element",
-  "object_spec", "@11", "text", "sprintf_args", "position",
-  "position_not_place", "between", "expr_pair", "place", "label",
-  "ordinal", "optional_ordinal_last", "nth_primitive", "object_type",
-  "label_path", "relative_path", "path", "corner", "expr",
-  "expr_lower_than", "expr_not_lower_than", YY_NULLPTR
-};
-#endif
-
-# ifdef YYPRINT
-/* YYTOKNUM[NUM] -- (External) token number corresponding to the
-   (internal) symbol number NUM (which must be that of a token).  */
-static const yytype_uint16 yytoknum[] =
-{
-       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
-     265,   266,   267,   268,   269,   270,   271,   272,   273,   274,
-     275,   276,   277,   278,   279,   280,   281,   282,   283,   284,
-     285,   286,   287,   288,   289,   290,   291,   292,   293,   294,
-     295,   296,   297,   298,   299,   300,   301,   302,   303,   304,
-     305,   306,   307,   308,   309,   310,   311,   312,   313,   314,
-     315,   316,   317,   318,   319,   320,   321,   322,   323,   324,
-     325,   326,   327,   328,   329,   330,   331,   332,   333,   334,
-     335,   336,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   348,   349,   350,   351,   352,   353,   354,
-     355,   356,   357,   358,   359,   360,   361,   362,   363,   364,
-     365,   366,   367,   368,   369,   370,   371,   372,   373,   374,
-     375,   376,   377,   378,   379,    46,    40,    96,    91,    44,
-      60,    62,    43,    45,    42,    47,    37,    33,    94,    59,
-      61,    58,   123,   125,    93,    41
-};
-# endif
-
-#define YYPACT_NINF -240
-
-#define yypact_value_is_default(Yystate) \
-  (!!((Yystate) == (-240)))
-
-#define YYTABLE_NINF -206
-
-#define yytable_value_is_error(Yytable_value) \
-  0
-
-  /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
-     STATE-NUM.  */
-static const yytype_int16 yypact[] =
-{
-    -114,  -240,    20,  -240,   757,  -107,  -240,   -98,  -123,  -240,
-    -240,  -240,  -240,  -240,  -240,  -240,  -240,  -240,  -240,  -106,
-    -240,  -240,  -240,  -240,     9,  -240,  1087,    46,  1172,    49,
-    1597,   -70,  1087,  -240,  -240,  -114,  -240,     3,   -33,  -240,
-     877,  -240,  -240,  -114,  1172,   -60,    36,   -14,  -240,    74,
-    -240,  -240,  -240,  -240,  -240,  -240,  -240,  -240,  -240,  -240,
-    -240,  -240,  -240,  -240,  -240,  -240,  -240,  -240,  -240,   -34,
-     -18,     8,    38,    47,    51,    65,   101,   102,   112,   122,
-    -240,  -240,    21,   150,  -240,  -240,  -240,  -240,  -240,  -240,
-    -240,  -240,  -240,  1257,  1172,  1597,  1597,  1087,  -240,  -240,
-     -43,  -240,  -240,   357,  2242,    59,   258,  -240,    10,  2147,
-    -240,     1,     6,  1172,  1172,   145,    -1,     2,   357,  2273,
-    -240,  -240,   220,   249,  1087,  -114,  -114,  -240,   721,  -240,
-     252,  -240,  -240,  -240,  -240,  1597,  1597,  1597,  1597,  2024,
-    2024,  1853,  1939,  1682,  1682,  1682,  1427,  1767,  -240,  -240,
-    2024,  2024,  2024,  -240,  -240,  -240,  -240,  -240,  -240,  -240,
-    -240,  1597,  2024,    23,    23,    23,  1597,  1597,  -240,  -240,
-    2282,   593,  -240,  1172,  -240,  -240,  -240,  -240,   250,  -240,
-    1172,  1172,  1172,  1172,  1172,  1172,  1172,  1172,  1172,   458,
-    1172,  -240,  -240,  -240,  -240,  -240,  -240,  -240,  -240,   121,
-     107,   123,   256,  2157,   137,   261,   134,   134,  -240,  1767,
-    1767,  -240,  -240,  -240,  -240,  -240,   276,  -240,  -240,  -240,
-    -240,  -240,  -240,  -240,  -240,  -240,  -240,   138,  -240,  -240,
-      24,   156,   235,  -240,  1597,  1597,  1597,  1597,  1597,  1597,
-    1597,  1597,  1597,  1597,  1597,  1597,  1597,  1597,  1597,  1682,
-    1682,  1597,  -240,   134,  -240,  1172,  1172,    23,    23,  1172,
-    1172,  -240,  -240,   143,   757,   153,  -240,  -240,   280,  2282,
-    2282,  2282,  2282,  2282,  2282,  2282,  2282,   -43,  2147,   -43,
-     -43,  2253,   275,   275,   295,  1002,   -43,  2081,  -240,  -240,
-      10,  1342,  -240,   694,  2282,  2282,  2282,  2282,  2282,  -240,
-    -240,  -240,  2282,  2282,   -98,  -123,    16,    28,  -240,   -43,
-      56,   302,  -240,   291,  -240,   155,   160,   172,   161,   164,
-     167,   184,   185,   181,  -240,   186,   188,  -240,  1682,  1767,
-    1767,  -240,  -240,  1682,  1682,  -240,  -240,  -240,  -240,  -240,
-     156,   279,   314,  2291,   440,   440,   413,   413,  2282,   413,
-     413,   -72,   -72,   134,   134,   134,   134,   -49,   117,   343,
-     322,  -240,   314,   239,  2300,  -240,  -240,  -240,   314,   239,
-    2300,  -119,  -240,  -240,  -240,  -240,  -240,  2116,  2116,  -240,
-     206,   333,  -240,   123,  2131,  -240,   228,  -240,  -240,  1172,
-    -240,  -240,  -240,  1172,  1172,  -240,  -240,  -240,  -110,   195,
-     197,   -47,   128,   292,  1682,  1682,  1597,  -240,  1597,  -240,
-     757,  -240,  -240,  2116,  -240,   228,   338,  -240,   200,   202,
-     212,  -240,  -240,  -240,  1682,  1682,  -240,   -43,   -27,   360,
-    2282,  -240,  -240,   214,  -240,  -240,  -240,  -240,  -240,   -73,
-      30,  -240,  1512,   268,  -240,  -240,   216,  1597,  2282,  -240,
-    -240,  2282,   354,  -240
-};
-
-  /* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.
-     Performed when YYTABLE does not specify something else to do.  Zero
-     means the default is an error.  */
-static const yytype_uint16 yydefact[] =
-{
-       7,     9,     0,     3,     2,     8,     1,     0,     0,   136,
-      18,    75,    76,    77,    78,    79,    80,    81,    82,     0,
-      14,    15,    17,    16,     0,    21,     0,     0,     0,    36,
-       0,     0,     0,    86,    69,     7,    72,    35,    32,     5,
-      65,    83,    10,     7,     0,     0,     0,    23,    27,     0,
-     162,   226,   227,   165,   167,   205,   204,   161,   191,   192,
-     193,   194,   195,   196,   197,   198,   199,   200,   201,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-     202,   203,     0,     0,   210,   211,   216,   217,   218,   219,
-     220,   222,   221,     0,     0,     0,     0,    20,    42,    45,
-      46,   140,   143,   141,   157,     0,     0,   163,     0,    44,
-     223,   224,     0,     0,     0,     0,    52,     0,     0,    51,
-     224,    39,    84,     0,    19,     7,     7,     4,     8,    40,
-       0,    33,   124,   125,   126,     0,     0,     0,     0,    93,
-      95,    97,    99,     0,     0,     0,     0,     0,   107,   108,
-     109,   111,   120,   122,   123,   130,   131,   132,   133,   127,
-     128,     0,   113,     0,     0,     0,     0,     0,   135,   129,
-      92,     0,    12,     0,    38,    37,    11,    24,     0,    22,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,   208,   206,   212,   214,   209,   207,   213,   215,     0,
-       0,   143,   141,    51,   224,     0,   239,   260,    43,     0,
-       0,   228,   229,   230,   231,   232,     0,   158,   179,   168,
-     171,   172,   173,   174,   175,   176,   177,     0,   169,   170,
-       0,   159,     0,   153,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,    61,   260,    47,     0,     0,     0,     0,     0,
-       0,    85,   138,     0,     0,     0,     6,    41,     0,    88,
-      89,    90,    91,    94,    96,    98,   100,   101,     0,   102,
-     103,   162,   165,   167,     0,     0,   105,   183,   185,   104,
-     182,     0,   106,     0,   110,   112,   121,   134,   114,   118,
-     119,   117,   115,   116,   162,   226,   205,   204,    66,     0,
-      67,    68,    13,     0,    28,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,   251,     0,     0,   240,     0,     0,
-       0,   156,   142,     0,     0,   166,   144,   146,   164,   178,
-     160,     0,   258,   259,   257,   256,   253,   255,   155,   225,
-     254,   233,   234,   235,   236,   237,   238,     0,     0,     0,
-       0,    55,    56,    58,    59,    54,    53,    57,   258,    60,
-     259,     0,    87,    70,    34,   190,   182,     0,     0,   180,
-       0,     0,   184,     0,    51,    25,    49,   241,   242,     0,
-     244,   245,   246,     0,     0,   249,   250,   252,     0,   144,
-     146,     0,     0,     0,     0,     0,     0,    48,     0,   137,
-      73,   189,   188,     0,   181,    49,     0,    29,     0,     0,
-       0,   148,   145,   147,     0,     0,   154,   149,     0,    62,
-     139,    74,    71,     0,    26,    50,   243,   247,   248,   149,
-       0,   151,     0,     0,   186,   150,   151,     0,    63,    30,
-     152,    64,     0,    31
-};
-
-  /* YYPGOTO[NTERM-NUM].  */
-static const yytype_int16 yypgoto[] =
-{
-    -240,  -240,    17,  -240,    12,   329,  -240,  -240,  -240,  -240,
-    -240,  -240,  -240,  -240,  -240,  -240,   334,   -76,  -240,  -240,
-     -42,    13,  -103,  -240,  -127,  -240,  -240,  -240,  -240,  -240,
-       5,  -240,    99,   194,   169,   -44,     4,  -100,  -240,  -240,
-    -240,  -104,  -240,  -239,  -240,   -50,   -26,  -240,    61
-};
-
-  /* YYDEFGOTO[NTERM-NUM].  */
-static const yytype_int16 yydefgoto[] =
-{
-      -1,     2,     3,    35,   264,     5,    36,    49,   313,   415,
-     178,   386,   452,   268,   176,    37,    97,    98,    38,   360,
-     417,   199,   116,   443,    39,   126,   410,   432,    40,   125,
-     117,   371,   100,   101,   249,   102,   118,   104,   105,   106,
-     107,   228,   287,   288,   289,   108,   119,   110,   120
-};
-
-  /* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM.  If
-     positive, shift that token.  If negative, reduce the rule whose
-     number is the opposite.  If YYTABLE_NINF, syntax error.  */
-static const yytype_int16 yytable[] =
-{
-     109,   266,   229,   404,   122,   424,   109,   129,   231,    41,
-     408,   252,     4,    50,   170,    47,   -17,    44,    45,    53,
-       6,   208,   209,   210,    54,     1,   409,    50,   -16,     9,
-     103,    99,    42,    53,    46,   421,   103,    99,    54,   174,
-     175,   115,   375,    43,   308,   169,   380,   127,   208,   201,
-     112,   191,   192,   121,   217,   171,   123,   172,   230,   209,
-     210,   131,   245,   246,   247,   218,   248,   203,   177,   206,
-     207,   109,   445,   219,   220,   221,   222,   223,   224,   225,
-     173,   226,   179,   209,   210,   209,   210,   111,   253,   209,
-     210,    48,   180,   111,   255,   256,   290,   202,   109,   257,
-     258,   103,    99,   292,   441,   209,   210,   205,   181,   269,
-     270,   271,   272,   273,   274,   275,   276,   278,   278,   278,
-     278,   293,   193,   194,   294,   295,   296,   261,   103,    99,
-     340,   250,   130,    41,   182,   297,   298,    94,   411,   412,
-     302,   303,   263,   265,    31,   278,   251,   103,   103,   103,
-     103,    94,   361,   363,   204,   -17,   367,   369,   111,   -17,
-     -17,   446,   209,   210,   183,   336,   337,   -16,   299,   300,
-     301,   -16,   -16,   184,   433,   311,    41,   185,   377,   378,
-     195,   196,   254,   293,   293,   111,   312,   227,  -140,  -140,
-     231,   186,   200,   315,   316,   317,   318,   319,   320,   321,
-     322,   323,   325,   326,   111,   111,   111,   111,   342,   343,
-     344,   345,   346,   347,   348,   349,   350,   351,   352,   353,
-     354,   355,   356,   278,   278,   359,     9,   187,   188,   362,
-     364,   376,   111,   368,   370,   290,   328,   382,   189,   329,
-     330,   201,   277,   279,   280,   286,   405,   383,   190,   209,
-     210,   197,   198,   103,   103,   262,   267,   425,   314,   203,
-     209,   210,   365,   366,   218,   384,   327,   334,   331,    41,
-     309,   335,   248,   220,   221,   222,   223,   224,   225,   338,
-     226,   216,   339,   431,   341,   399,   400,   372,   374,   202,
-     220,   221,   222,   223,   224,   225,   373,   226,   379,   385,
-     387,   389,   278,   293,   293,   388,   390,   278,   278,   391,
-     111,   111,   392,   393,   394,   234,   235,   236,   237,   238,
-     239,   211,   212,   213,   214,   215,   395,   376,   376,   403,
-     407,   396,   103,   397,   255,   413,   414,   103,   103,   416,
-     422,    31,   423,   426,   435,   436,   204,   437,   357,   358,
-     241,   242,   243,   244,   245,   246,   247,   438,   248,   444,
-     449,   450,   453,   376,   128,   310,   124,   211,   212,   213,
-     214,   215,   333,   434,     0,     0,   406,     0,   278,   278,
-     429,     0,   430,     0,   200,     0,   227,     0,     0,   111,
-       0,     0,     0,     0,   111,   111,   442,     0,   278,   278,
-       0,   332,   418,   227,     0,     0,   419,   420,   103,   103,
-       0,   236,   237,   238,   239,    41,   448,     0,     0,     0,
-       0,   451,   211,   212,   213,   214,   215,   398,   103,   103,
-       0,     0,   401,   402,  -141,  -141,     0,     0,   234,   235,
-     236,   237,   238,   239,   241,   242,   243,   244,   245,   246,
-     247,     0,   248,     0,     0,   234,   235,   236,   237,   238,
-     239,    50,    51,    52,     9,   111,   111,    53,     0,     0,
-       0,     0,    54,   241,   242,   243,   244,   245,   246,   247,
-       0,   248,     0,     0,     0,   111,   111,     0,    55,    56,
-     241,   242,   243,   244,   245,   246,   247,     0,   248,     0,
-       0,     0,     0,   427,   428,     0,     0,     0,     0,     0,
-       0,    57,    58,    59,    60,    61,    62,    63,    64,    65,
-      66,    67,    68,   439,   440,     0,     0,     0,    69,    70,
-      71,    72,    73,    74,    75,    76,    77,    78,    79,   238,
-     239,    80,    81,    82,    83,   243,   244,   245,   246,   247,
-       0,   248,     0,     0,     0,     0,     0,     0,     0,    84,
-      85,    86,    87,    88,    89,    90,    91,    92,     0,     0,
-     241,   242,   243,   244,   245,   246,   247,     0,   248,    31,
-       0,     0,     0,     0,   113,    94,     0,     0,     0,     0,
-       0,    95,     0,     0,     0,   114,   304,   305,    52,     9,
-      10,     0,    53,   324,     0,     0,     0,    54,    11,    12,
-      13,    14,    15,    16,    17,    18,     0,     0,    19,     0,
-       0,    20,    21,   306,   307,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,    57,    58,    59,    60,
-      61,    62,    63,    64,    65,    66,    67,    68,     0,     0,
-       0,     0,     0,    69,    70,    71,    72,    73,    74,    75,
-      76,    77,    78,    79,    24,     0,    80,    81,    82,    83,
-      25,    26,     0,     0,    27,     0,    28,     0,     0,     0,
-       0,     0,     0,     0,    84,    85,    86,    87,    88,    89,
-      90,    91,    92,    29,     0,    30,     0,     0,     0,     0,
-       0,     0,     0,     0,    31,    32,     0,     0,     0,    93,
-      94,    33,     0,     0,     7,     8,    95,     9,    10,     0,
-      96,     0,     0,     0,     0,    34,    11,    12,    13,    14,
-      15,    16,    17,    18,     0,     0,    19,     0,     0,    20,
-      21,    22,    23,     0,     0,     0,     0,     0,     0,     0,
-       7,     8,     0,     9,    10,     0,     0,     0,     0,     0,
-       0,     0,    11,    12,    13,    14,    15,    16,    17,    18,
-       0,     0,    19,     0,     0,    20,    21,    22,    23,   234,
-     235,   236,   237,   238,   239,     0,     0,     0,     0,     0,
-       0,     0,    24,     0,     0,     0,     0,     0,    25,    26,
-       0,     0,    27,     0,    28,     0,     0,     0,     0,     0,
-       0,     0,     0,   240,   241,   242,   243,   244,   245,   246,
-     247,    29,   248,    30,     0,     0,     0,     0,    24,     0,
-       0,     0,    31,    32,    25,    26,     0,     0,    27,    33,
-      28,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-      42,     0,     0,    34,     0,     0,     0,    29,     0,    30,
-       0,     0,     0,     0,     0,     0,     0,     0,    31,    32,
-      50,    51,    52,     9,     0,    33,    53,     0,   132,   133,
-     134,    54,     0,     0,     0,     0,     0,     0,     0,    34,
-     135,   136,     0,   137,   138,   139,   140,   141,   142,   143,
-     144,   145,   146,   147,   148,   149,   150,   151,   152,   153,
-     154,   155,   156,   157,   158,     0,     0,     0,     0,     0,
-      57,    58,    59,    60,    61,    62,    63,    64,    65,    66,
-      67,    68,     0,     0,     0,     0,     0,    69,    70,    71,
-      72,    73,    74,    75,    76,    77,    78,    79,     0,     0,
-      80,    81,    82,    83,     0,     0,   159,   160,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,    84,    85,
-      86,    87,    88,    89,    90,    91,    92,     0,     0,     0,
-     161,   162,   163,   164,   165,   166,   167,   168,    31,     0,
-       0,     0,     0,   113,    94,    50,    51,    52,     9,     0,
-      95,    53,     0,     0,    96,     0,    54,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,    55,    56,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,    57,    58,    59,    60,    61,
-      62,    63,    64,    65,    66,    67,    68,     0,     0,     0,
-       0,     0,    69,    70,    71,    72,    73,    74,    75,    76,
-      77,    78,    79,     0,     0,    80,    81,    82,    83,     0,
-      50,    51,    52,     9,     0,     0,    53,     0,     0,     0,
-       0,    54,     0,    84,    85,    86,    87,    88,    89,    90,
-      91,    92,     0,     0,     0,     0,     0,    55,    56,     0,
-       0,     0,     0,    31,     0,     0,     0,   284,    93,    94,
-       0,     0,     0,     0,     0,    95,     0,     0,     0,   114,
-      57,    58,    59,    60,    61,    62,    63,    64,    65,    66,
-      67,    68,     0,     0,     0,     0,     0,    69,    70,    71,
-      72,    73,    74,    75,    76,    77,    78,    79,     0,     0,
-      80,    81,    82,    83,     0,    50,    51,    52,     9,     0,
-       0,    53,     0,     0,     0,     0,    54,     0,    84,    85,
-      86,    87,    88,    89,    90,    91,    92,     0,     0,     0,
-       0,     0,    55,    56,     0,     0,     0,     0,    31,     0,
-       0,     0,     0,    93,    94,     0,     0,     0,     0,     0,
-      95,     0,     0,     0,    96,    57,    58,    59,    60,    61,
-      62,    63,    64,    65,    66,    67,    68,     0,     0,     0,
-       0,     0,    69,    70,    71,    72,    73,    74,    75,    76,
-      77,    78,    79,     0,     0,    80,    81,    82,    83,     0,
-      50,    51,    52,     9,     0,     0,    53,     0,     0,     0,
-       0,    54,     0,    84,    85,    86,    87,    88,    89,    90,
-      91,    92,     0,     0,     0,     0,     0,    55,    56,     0,
-       0,     0,     0,    31,     0,     0,     0,     0,   113,    94,
-       0,     0,     0,     0,     0,    95,     0,     0,     0,   114,
-      57,    58,    59,    60,    61,    62,    63,    64,    65,    66,
-      67,    68,     0,     0,     0,     0,     0,    69,    70,    71,
-      72,    73,    74,    75,    76,    77,    78,    79,     0,     0,
-      80,    81,    82,    83,     0,    50,    51,    52,     9,     0,
-       0,    53,     0,     0,     0,     0,    54,     0,    84,    85,
-      86,    87,    88,    89,    90,    91,    92,     0,     0,     0,
-       0,     0,    55,    56,     0,     0,     0,     0,    31,     0,
-       0,     0,     0,    93,    94,     0,     0,     0,     0,     0,
-      95,     0,     0,     0,   114,    57,    58,    59,    60,    61,
-      62,    63,    64,    65,    66,    67,    68,     0,     0,     0,
-       0,     0,    69,    70,    71,    72,    73,    74,    75,    76,
-      77,    78,    79,     0,     0,    80,    81,    82,    83,     0,
-     281,    51,    52,     0,     0,     0,   282,     0,     0,     0,
-       0,   283,     0,    84,    85,    86,    87,    88,    89,    90,
-      91,    92,     0,     0,     0,     0,     0,    55,    56,     0,
-       0,     0,     0,    31,     0,     0,     0,     0,   291,    94,
-       0,     0,     0,     0,     0,    95,     0,     0,     0,   114,
-      57,    58,    59,    60,    61,    62,    63,    64,    65,    66,
-      67,    68,     0,     0,     0,     0,     0,    69,    70,    71,
-      72,    73,    74,    75,    76,    77,    78,    79,     0,     0,
-      80,    81,    82,    83,     0,    50,    51,    52,     0,     0,
-       0,    53,     0,     0,     0,     0,    54,     0,    84,    85,
-      86,    87,    88,    89,    90,    91,    92,     0,     0,     0,
-       0,     0,    55,    56,     0,     0,     0,     0,     0,     0,
-       0,     0,   284,   285,    94,     0,     0,     0,     0,     0,
-      95,     0,     0,     0,    96,    57,    58,    59,    60,    61,
-      62,    63,    64,    65,    66,    67,    68,     0,     0,     0,
-       0,     0,    69,    70,    71,    72,    73,    74,    75,    76,
-      77,    78,    79,     0,     0,    80,    81,    82,    83,     0,
-      50,    51,    52,     0,     0,     0,    53,     0,     0,     0,
-       0,    54,     0,    84,    85,    86,    87,    88,    89,    90,
-      91,    92,     0,     0,     0,     0,     0,    55,    56,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,   113,    94,
-       0,     0,     0,     0,     0,    95,   447,     0,     0,    96,
-      57,    58,    59,    60,    61,    62,    63,    64,    65,    66,
-      67,    68,     0,     0,     0,     0,     0,    69,    70,    71,
-      72,    73,    74,    75,    76,    77,    78,    79,     0,     0,
-      80,    81,    82,    83,     0,    50,    51,    52,     0,     0,
-       0,    53,     0,     0,     0,     0,    54,     0,    84,    85,
-      86,    87,    88,    89,    90,    91,    92,     0,     0,     0,
-       0,     0,    55,    56,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,   113,    94,     0,     0,     0,     0,     0,
-      95,     0,     0,     0,    96,    57,    58,    59,    60,    61,
-      62,    63,    64,    65,    66,    67,    68,     0,     0,     0,
-       0,     0,    69,    70,    71,    72,    73,    74,    75,    76,
-      77,    78,    79,     0,     0,    80,    81,    82,    83,     0,
-      50,    51,    52,     0,     0,     0,    53,     0,     0,     0,
-       0,    54,     0,    84,    85,    86,    87,    88,    89,    90,
-      91,    92,     0,     0,     0,     0,     0,    55,    56,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,    93,    94,
-       0,     0,     0,     0,     0,    95,     0,     0,     0,    96,
-      57,    58,    59,    60,    61,    62,    63,    64,    65,    66,
-      67,    68,     0,     0,     0,     0,     0,    69,    70,    71,
-      72,    73,    74,    75,    76,    77,    78,    79,     0,     0,
-      80,    81,    82,    83,     0,     0,    50,    51,    52,     0,
-       0,     0,    53,     0,     0,     0,     0,    54,    84,    85,
-      86,    87,    88,    89,    90,    91,    92,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,   291,    94,     0,     0,     0,     0,     0,
-      95,  -205,     0,     0,    96,     0,    57,    58,    59,    60,
-      61,    62,    63,    64,    65,    66,    67,    68,     0,     0,
-       0,     0,     0,    69,    70,    71,    72,    73,    74,    75,
-      76,    77,    78,    79,     0,     0,    80,    81,    82,    83,
-       0,     0,    50,    51,    52,     0,     0,     0,    53,     0,
-       0,     0,     0,    54,    84,    85,    86,    87,    88,    89,
-      90,    91,    92,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,   113,
-      94,     0,     0,     0,     0,     0,    95,  -204,     0,     0,
-      96,     0,    57,    58,    59,    60,    61,    62,    63,    64,
-      65,    66,    67,    68,     0,     0,     0,     0,     0,    69,
-      70,    71,    72,    73,    74,    75,    76,    77,    78,    79,
-       0,     0,    80,    81,    82,    83,     0,    50,    51,    52,
-       0,     0,     0,    53,     0,     0,     0,     0,    54,     0,
-      84,    85,    86,    87,    88,    89,    90,    91,    92,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,   113,    94,     0,     0,     0,
-       0,     0,    95,     0,     0,     0,    96,    57,    58,    59,
-      60,    61,    62,    63,    64,    65,    66,    67,    68,     0,
-       0,     0,     0,     0,    69,    70,    71,    72,    73,    74,
-      75,    76,    77,    78,    79,     0,     0,    80,    81,    82,
-      83,    55,    56,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,    84,    85,    86,    87,    88,
-      89,    90,    91,    92,     0,    58,    59,    60,    61,    62,
-      63,    64,    65,    66,    67,    68,    55,    56,     0,     0,
-     113,    94,     0,     0,     0,     0,     0,    95,     0,     0,
-       0,    96,     0,     0,    80,    81,    82,    83,     0,     0,
-      58,    59,    60,    61,    62,    63,    64,    65,    66,    67,
-      68,     0,    84,    85,    86,    87,    88,    89,    90,    91,
-      92,     0,     0,     0,     0,   232,     0,     0,   233,    80,
-      81,    82,    83,     0,     0,   232,   381,     0,   233,     0,
-       0,     0,     0,     0,     0,     0,     0,    84,    85,    86,
-      87,    88,    89,    90,    91,    92,   259,   260,   236,   237,
-     238,   239,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,   284,   234,   235,   236,   237,   238,   239,     0,     0,
-       0,     0,   259,   260,   236,   237,   238,   239,     0,     0,
-     240,   241,   242,   243,   244,   245,   246,   247,     0,   248,
-       0,     0,     0,     0,     0,     0,   240,   241,   242,   243,
-     244,   245,   246,   247,     0,   248,   240,   241,   242,   243,
-     244,   245,   246,   247,     0,   248,    58,    59,    60,    61,
-      62,    63,    64,    65,    66,    67,    68,    58,    59,    60,
-      61,    62,    63,    64,    65,    66,    67,    68,     0,     0,
-       0,     0,     0,     0,     0,    80,    81,    82,    83,     0,
-       0,     0,     0,     0,     0,     0,    80,    81,    82,    83,
-       0,     0,     0,    84,    85,    86,    87,    88,    89,    90,
-      91,    92,     0,     0,    84,    85,    86,    87,    88,    89,
-      90,    91,    92,     0,     0,     0,     0,   216,   259,   260,
-     236,   237,   238,   239,     0,     0,     0,   234,   235,   236,
-     237,   238,   239,     0,     0,     0,   234,     0,   236,   237,
-     238,   239,     0,     0,     0,   259,     0,   236,   237,   238,
-     239,     0,     0,   241,   242,   243,   244,   245,   246,   247,
-       0,   248,   241,   242,   243,   244,   245,   246,   247,     0,
-     248,   241,   242,   243,   244,   245,   246,   247,     0,   248,
-     241,   242,   243,   244,   245,   246,   247,     0,   248
-};
-
-static const yytype_int16 yycheck[] =
-{
-      26,   128,   106,    52,    30,    52,    32,     4,   108,     4,
-     129,   114,     0,     3,    40,     6,     0,   140,   141,     9,
-       0,    97,   132,   133,    14,   139,   145,     3,     0,     6,
-      26,    26,   139,     9,   140,   145,    32,    32,    14,     3,
-       4,    28,   281,   141,   171,    40,   285,    35,   124,    93,
-       4,    30,    31,     4,   104,    43,   126,    44,    48,   132,
-     133,    94,   134,   135,   136,     6,   138,    93,    82,    95,
-      96,    97,   145,    14,    15,    16,    17,    18,    19,    20,
-     140,    22,     8,   132,   133,   132,   133,    26,   114,   132,
-     133,    82,   126,    32,    95,    96,   146,    93,   124,    97,
-      98,    97,    97,   147,   131,   132,   133,    94,   126,   135,
-     136,   137,   138,   139,   140,   141,   142,   143,   144,   145,
-     146,   147,   101,   102,   150,   151,   152,   122,   124,   124,
-     230,   130,   129,   128,   126,   161,   162,   127,   377,   378,
-     166,   167,   125,   126,   121,   171,   140,   143,   144,   145,
-     146,   127,   255,   256,    93,   139,   259,   260,    97,   143,
-     144,   131,   132,   133,   126,   209,   210,   139,   163,   164,
-     165,   143,   144,   126,   413,   171,   171,   126,   282,   283,
-      30,    31,    37,   209,   210,   124,   173,   128,   132,   133,
-     290,   126,    93,   180,   181,   182,   183,   184,   185,   186,
-     187,   188,   189,   190,   143,   144,   145,   146,   234,   235,
-     236,   237,   238,   239,   240,   241,   242,   243,   244,   245,
-     246,   247,   248,   249,   250,   251,     6,   126,   126,   255,
-     256,   281,   171,   259,   260,   285,   129,   287,   126,   132,
-     133,   285,   143,   144,   145,   146,   129,   291,   126,   132,
-     133,   101,   102,   249,   250,     6,     4,   129,     8,   285,
-     132,   133,   257,   258,     6,   291,   145,   130,   145,   264,
-     171,    10,   138,    15,    16,    17,    18,    19,    20,     3,
-      22,   125,   144,   410,    49,   329,   330,   144,     8,   285,
-      15,    16,    17,    18,    19,    20,   143,    22,     3,     8,
-     145,   129,   328,   329,   330,   145,   145,   333,   334,   145,
-     249,   250,   145,   129,   129,    95,    96,    97,    98,    99,
-     100,    65,    66,    67,    68,    69,   145,   377,   378,    50,
-       8,   145,   328,   145,    95,   129,     3,   333,   334,   111,
-     145,   121,   145,    51,     6,   145,   285,   145,   249,   250,
-     130,   131,   132,   133,   134,   135,   136,   145,   138,   145,
-      92,   145,     8,   413,    35,   171,    32,    65,    66,    67,
-      68,    69,   203,   415,    -1,    -1,    33,    -1,   404,   405,
-     406,    -1,   408,    -1,   285,    -1,   128,    -1,    -1,   328,
-      -1,    -1,    -1,    -1,   333,   334,    36,    -1,   424,   425,
-      -1,   145,   389,   128,    -1,    -1,   393,   394,   404,   405,
-      -1,    97,    98,    99,   100,   410,   442,    -1,    -1,    -1,
-      -1,   447,    65,    66,    67,    68,    69,   328,   424,   425,
-      -1,    -1,   333,   334,   132,   133,    -1,    -1,    95,    96,
-      97,    98,    99,   100,   130,   131,   132,   133,   134,   135,
-     136,    -1,   138,    -1,    -1,    95,    96,    97,    98,    99,
-     100,     3,     4,     5,     6,   404,   405,     9,    -1,    -1,
-      -1,    -1,    14,   130,   131,   132,   133,   134,   135,   136,
-      -1,   138,    -1,    -1,    -1,   424,   425,    -1,    30,    31,
-     130,   131,   132,   133,   134,   135,   136,    -1,   138,    -1,
-      -1,    -1,    -1,   404,   405,    -1,    -1,    -1,    -1,    -1,
-      -1,    53,    54,    55,    56,    57,    58,    59,    60,    61,
-      62,    63,    64,   424,   425,    -1,    -1,    -1,    70,    71,
-      72,    73,    74,    75,    76,    77,    78,    79,    80,    99,
-     100,    83,    84,    85,    86,   132,   133,   134,   135,   136,
-      -1,   138,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   101,
-     102,   103,   104,   105,   106,   107,   108,   109,    -1,    -1,
-     130,   131,   132,   133,   134,   135,   136,    -1,   138,   121,
-      -1,    -1,    -1,    -1,   126,   127,    -1,    -1,    -1,    -1,
-      -1,   133,    -1,    -1,    -1,   137,     3,     4,     5,     6,
-       7,    -1,     9,   145,    -1,    -1,    -1,    14,    15,    16,
-      17,    18,    19,    20,    21,    22,    -1,    -1,    25,    -1,
-      -1,    28,    29,    30,    31,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    53,    54,    55,    56,
-      57,    58,    59,    60,    61,    62,    63,    64,    -1,    -1,
-      -1,    -1,    -1,    70,    71,    72,    73,    74,    75,    76,
-      77,    78,    79,    80,    81,    -1,    83,    84,    85,    86,
-      87,    88,    -1,    -1,    91,    -1,    93,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,   101,   102,   103,   104,   105,   106,
-     107,   108,   109,   110,    -1,   112,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,   121,   122,    -1,    -1,    -1,   126,
-     127,   128,    -1,    -1,     3,     4,   133,     6,     7,    -1,
-     137,    -1,    -1,    -1,    -1,   142,    15,    16,    17,    18,
-      19,    20,    21,    22,    -1,    -1,    25,    -1,    -1,    28,
-      29,    30,    31,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-       3,     4,    -1,     6,     7,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    15,    16,    17,    18,    19,    20,    21,    22,
-      -1,    -1,    25,    -1,    -1,    28,    29,    30,    31,    95,
-      96,    97,    98,    99,   100,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    81,    -1,    -1,    -1,    -1,    -1,    87,    88,
-      -1,    -1,    91,    -1,    93,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,   129,   130,   131,   132,   133,   134,   135,
-     136,   110,   138,   112,    -1,    -1,    -1,    -1,    81,    -1,
-      -1,    -1,   121,   122,    87,    88,    -1,    -1,    91,   128,
-      93,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-     139,    -1,    -1,   142,    -1,    -1,    -1,   110,    -1,   112,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   121,   122,
-       3,     4,     5,     6,    -1,   128,     9,    -1,    11,    12,
-      13,    14,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   142,
-      23,    24,    -1,    26,    27,    28,    29,    30,    31,    32,
-      33,    34,    35,    36,    37,    38,    39,    40,    41,    42,
-      43,    44,    45,    46,    47,    -1,    -1,    -1,    -1,    -1,
-      53,    54,    55,    56,    57,    58,    59,    60,    61,    62,
-      63,    64,    -1,    -1,    -1,    -1,    -1,    70,    71,    72,
-      73,    74,    75,    76,    77,    78,    79,    80,    -1,    -1,
-      83,    84,    85,    86,    -1,    -1,    89,    90,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   101,   102,
-     103,   104,   105,   106,   107,   108,   109,    -1,    -1,    -1,
-     113,   114,   115,   116,   117,   118,   119,   120,   121,    -1,
-      -1,    -1,    -1,   126,   127,     3,     4,     5,     6,    -1,
-     133,     9,    -1,    -1,   137,    -1,    14,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    30,    31,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    53,    54,    55,    56,    57,
-      58,    59,    60,    61,    62,    63,    64,    -1,    -1,    -1,
-      -1,    -1,    70,    71,    72,    73,    74,    75,    76,    77,
-      78,    79,    80,    -1,    -1,    83,    84,    85,    86,    -1,
-       3,     4,     5,     6,    -1,    -1,     9,    -1,    -1,    -1,
-      -1,    14,    -1,   101,   102,   103,   104,   105,   106,   107,
-     108,   109,    -1,    -1,    -1,    -1,    -1,    30,    31,    -1,
-      -1,    -1,    -1,   121,    -1,    -1,    -1,   125,   126,   127,
-      -1,    -1,    -1,    -1,    -1,   133,    -1,    -1,    -1,   137,
-      53,    54,    55,    56,    57,    58,    59,    60,    61,    62,
-      63,    64,    -1,    -1,    -1,    -1,    -1,    70,    71,    72,
-      73,    74,    75,    76,    77,    78,    79,    80,    -1,    -1,
-      83,    84,    85,    86,    -1,     3,     4,     5,     6,    -1,
-      -1,     9,    -1,    -1,    -1,    -1,    14,    -1,   101,   102,
-     103,   104,   105,   106,   107,   108,   109,    -1,    -1,    -1,
-      -1,    -1,    30,    31,    -1,    -1,    -1,    -1,   121,    -1,
-      -1,    -1,    -1,   126,   127,    -1,    -1,    -1,    -1,    -1,
-     133,    -1,    -1,    -1,   137,    53,    54,    55,    56,    57,
-      58,    59,    60,    61,    62,    63,    64,    -1,    -1,    -1,
-      -1,    -1,    70,    71,    72,    73,    74,    75,    76,    77,
-      78,    79,    80,    -1,    -1,    83,    84,    85,    86,    -1,
-       3,     4,     5,     6,    -1,    -1,     9,    -1,    -1,    -1,
-      -1,    14,    -1,   101,   102,   103,   104,   105,   106,   107,
-     108,   109,    -1,    -1,    -1,    -1,    -1,    30,    31,    -1,
-      -1,    -1,    -1,   121,    -1,    -1,    -1,    -1,   126,   127,
-      -1,    -1,    -1,    -1,    -1,   133,    -1,    -1,    -1,   137,
-      53,    54,    55,    56,    57,    58,    59,    60,    61,    62,
-      63,    64,    -1,    -1,    -1,    -1,    -1,    70,    71,    72,
-      73,    74,    75,    76,    77,    78,    79,    80,    -1,    -1,
-      83,    84,    85,    86,    -1,     3,     4,     5,     6,    -1,
-      -1,     9,    -1,    -1,    -1,    -1,    14,    -1,   101,   102,
-     103,   104,   105,   106,   107,   108,   109,    -1,    -1,    -1,
-      -1,    -1,    30,    31,    -1,    -1,    -1,    -1,   121,    -1,
-      -1,    -1,    -1,   126,   127,    -1,    -1,    -1,    -1,    -1,
-     133,    -1,    -1,    -1,   137,    53,    54,    55,    56,    57,
-      58,    59,    60,    61,    62,    63,    64,    -1,    -1,    -1,
-      -1,    -1,    70,    71,    72,    73,    74,    75,    76,    77,
-      78,    79,    80,    -1,    -1,    83,    84,    85,    86,    -1,
-       3,     4,     5,    -1,    -1,    -1,     9,    -1,    -1,    -1,
-      -1,    14,    -1,   101,   102,   103,   104,   105,   106,   107,
-     108,   109,    -1,    -1,    -1,    -1,    -1,    30,    31,    -1,
-      -1,    -1,    -1,   121,    -1,    -1,    -1,    -1,   126,   127,
-      -1,    -1,    -1,    -1,    -1,   133,    -1,    -1,    -1,   137,
-      53,    54,    55,    56,    57,    58,    59,    60,    61,    62,
-      63,    64,    -1,    -1,    -1,    -1,    -1,    70,    71,    72,
-      73,    74,    75,    76,    77,    78,    79,    80,    -1,    -1,
-      83,    84,    85,    86,    -1,     3,     4,     5,    -1,    -1,
-      -1,     9,    -1,    -1,    -1,    -1,    14,    -1,   101,   102,
-     103,   104,   105,   106,   107,   108,   109,    -1,    -1,    -1,
-      -1,    -1,    30,    31,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,   125,   126,   127,    -1,    -1,    -1,    -1,    -1,
-     133,    -1,    -1,    -1,   137,    53,    54,    55,    56,    57,
-      58,    59,    60,    61,    62,    63,    64,    -1,    -1,    -1,
-      -1,    -1,    70,    71,    72,    73,    74,    75,    76,    77,
-      78,    79,    80,    -1,    -1,    83,    84,    85,    86,    -1,
-       3,     4,     5,    -1,    -1,    -1,     9,    -1,    -1,    -1,
-      -1,    14,    -1,   101,   102,   103,   104,   105,   106,   107,
-     108,   109,    -1,    -1,    -1,    -1,    -1,    30,    31,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   126,   127,
-      -1,    -1,    -1,    -1,    -1,   133,   134,    -1,    -1,   137,
-      53,    54,    55,    56,    57,    58,    59,    60,    61,    62,
-      63,    64,    -1,    -1,    -1,    -1,    -1,    70,    71,    72,
-      73,    74,    75,    76,    77,    78,    79,    80,    -1,    -1,
-      83,    84,    85,    86,    -1,     3,     4,     5,    -1,    -1,
-      -1,     9,    -1,    -1,    -1,    -1,    14,    -1,   101,   102,
-     103,   104,   105,   106,   107,   108,   109,    -1,    -1,    -1,
-      -1,    -1,    30,    31,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,   126,   127,    -1,    -1,    -1,    -1,    -1,
-     133,    -1,    -1,    -1,   137,    53,    54,    55,    56,    57,
-      58,    59,    60,    61,    62,    63,    64,    -1,    -1,    -1,
-      -1,    -1,    70,    71,    72,    73,    74,    75,    76,    77,
-      78,    79,    80,    -1,    -1,    83,    84,    85,    86,    -1,
-       3,     4,     5,    -1,    -1,    -1,     9,    -1,    -1,    -1,
-      -1,    14,    -1,   101,   102,   103,   104,   105,   106,   107,
-     108,   109,    -1,    -1,    -1,    -1,    -1,    30,    31,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   126,   127,
-      -1,    -1,    -1,    -1,    -1,   133,    -1,    -1,    -1,   137,
-      53,    54,    55,    56,    57,    58,    59,    60,    61,    62,
-      63,    64,    -1,    -1,    -1,    -1,    -1,    70,    71,    72,
-      73,    74,    75,    76,    77,    78,    79,    80,    -1,    -1,
-      83,    84,    85,    86,    -1,    -1,     3,     4,     5,    -1,
-      -1,    -1,     9,    -1,    -1,    -1,    -1,    14,   101,   102,
-     103,   104,   105,   106,   107,   108,   109,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,   126,   127,    -1,    -1,    -1,    -1,    -1,
-     133,    48,    -1,    -1,   137,    -1,    53,    54,    55,    56,
-      57,    58,    59,    60,    61,    62,    63,    64,    -1,    -1,
-      -1,    -1,    -1,    70,    71,    72,    73,    74,    75,    76,
-      77,    78,    79,    80,    -1,    -1,    83,    84,    85,    86,
-      -1,    -1,     3,     4,     5,    -1,    -1,    -1,     9,    -1,
-      -1,    -1,    -1,    14,   101,   102,   103,   104,   105,   106,
-     107,   108,   109,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   126,
-     127,    -1,    -1,    -1,    -1,    -1,   133,    48,    -1,    -1,
-     137,    -1,    53,    54,    55,    56,    57,    58,    59,    60,
-      61,    62,    63,    64,    -1,    -1,    -1,    -1,    -1,    70,
-      71,    72,    73,    74,    75,    76,    77,    78,    79,    80,
-      -1,    -1,    83,    84,    85,    86,    -1,     3,     4,     5,
-      -1,    -1,    -1,     9,    -1,    -1,    -1,    -1,    14,    -1,
-     101,   102,   103,   104,   105,   106,   107,   108,   109,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,   126,   127,    -1,    -1,    -1,
-      -1,    -1,   133,    -1,    -1,    -1,   137,    53,    54,    55,
-      56,    57,    58,    59,    60,    61,    62,    63,    64,    -1,
-      -1,    -1,    -1,    -1,    70,    71,    72,    73,    74,    75,
-      76,    77,    78,    79,    80,    -1,    -1,    83,    84,    85,
-      86,    30,    31,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,   101,   102,   103,   104,   105,
-     106,   107,   108,   109,    -1,    54,    55,    56,    57,    58,
-      59,    60,    61,    62,    63,    64,    30,    31,    -1,    -1,
-     126,   127,    -1,    -1,    -1,    -1,    -1,   133,    -1,    -1,
-      -1,   137,    -1,    -1,    83,    84,    85,    86,    -1,    -1,
-      54,    55,    56,    57,    58,    59,    60,    61,    62,    63,
-      64,    -1,   101,   102,   103,   104,   105,   106,   107,   108,
-     109,    -1,    -1,    -1,    -1,    48,    -1,    -1,    51,    83,
-      84,    85,    86,    -1,    -1,    48,   125,    -1,    51,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,   101,   102,   103,
-     104,   105,   106,   107,   108,   109,    95,    96,    97,    98,
-      99,   100,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,   125,    95,    96,    97,    98,    99,   100,    -1,    -1,
-      -1,    -1,    95,    96,    97,    98,    99,   100,    -1,    -1,
-     129,   130,   131,   132,   133,   134,   135,   136,    -1,   138,
-      -1,    -1,    -1,    -1,    -1,    -1,   129,   130,   131,   132,
-     133,   134,   135,   136,    -1,   138,   129,   130,   131,   132,
-     133,   134,   135,   136,    -1,   138,    54,    55,    56,    57,
-      58,    59,    60,    61,    62,    63,    64,    54,    55,    56,
-      57,    58,    59,    60,    61,    62,    63,    64,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    83,    84,    85,    86,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    83,    84,    85,    86,
-      -1,    -1,    -1,   101,   102,   103,   104,   105,   106,   107,
-     108,   109,    -1,    -1,   101,   102,   103,   104,   105,   106,
-     107,   108,   109,    -1,    -1,    -1,    -1,   125,    95,    96,
-      97,    98,    99,   100,    -1,    -1,    -1,    95,    96,    97,
-      98,    99,   100,    -1,    -1,    -1,    95,    -1,    97,    98,
-      99,   100,    -1,    -1,    -1,    95,    -1,    97,    98,    99,
-     100,    -1,    -1,   130,   131,   132,   133,   134,   135,   136,
-      -1,   138,   130,   131,   132,   133,   134,   135,   136,    -1,
-     138,   130,   131,   132,   133,   134,   135,   136,    -1,   138,
-     130,   131,   132,   133,   134,   135,   136,    -1,   138
-};
-
-  /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
-     symbol of state STATE-NUM.  */
-static const yytype_uint8 yystos[] =
-{
-       0,   139,   147,   148,   150,   151,     0,     3,     4,     6,
-       7,    15,    16,    17,    18,    19,    20,    21,    22,    25,
-      28,    29,    30,    31,    81,    87,    88,    91,    93,   110,
-     112,   121,   122,   128,   142,   149,   152,   161,   164,   170,
-     174,   176,   139,   141,   140,   141,   140,     6,    82,   153,
-       3,     4,     5,     9,    14,    30,    31,    53,    54,    55,
-      56,    57,    58,    59,    60,    61,    62,    63,    64,    70,
-      71,    72,    73,    74,    75,    76,    77,    78,    79,    80,
-      83,    84,    85,    86,   101,   102,   103,   104,   105,   106,
-     107,   108,   109,   126,   127,   133,   137,   162,   163,   176,
-     178,   179,   181,   182,   183,   184,   185,   186,   191,   192,
-     193,   194,     4,   126,   137,   167,   168,   176,   182,   192,
-     194,     4,   192,   126,   162,   175,   171,   150,   151,     4,
-     129,    94,    11,    12,    13,    23,    24,    26,    27,    28,
-      29,    30,    31,    32,    33,    34,    35,    36,    37,    38,
-      39,    40,    41,    42,    43,    44,    45,    46,    47,    89,
-      90,   113,   114,   115,   116,   117,   118,   119,   120,   176,
-     192,   150,   167,   140,     3,     4,   160,    82,   156,     8,
-     126,   126,   126,   126,   126,   126,   126,   126,   126,   126,
-     126,    30,    31,   101,   102,    30,    31,   101,   102,   167,
-     178,   181,   182,   192,   194,   167,   192,   192,   163,   132,
-     133,    65,    66,    67,    68,    69,   125,   191,     6,    14,
-      15,    16,    17,    18,    19,    20,    22,   128,   187,   187,
-      48,   183,    48,    51,    95,    96,    97,    98,    99,   100,
-     129,   130,   131,   132,   133,   134,   135,   136,   138,   180,
-     130,   140,   168,   192,    37,    95,    96,    97,    98,    95,
-      96,   176,     6,   148,   150,   148,   170,     4,   159,   192,
-     192,   192,   192,   192,   192,   192,   192,   178,   192,   178,
-     178,     3,     9,    14,   125,   126,   178,   188,   189,   190,
-     191,   126,   181,   192,   192,   192,   192,   192,   192,   176,
-     176,   176,   192,   192,     3,     4,    30,    31,   170,   178,
-     179,   182,   167,   154,     8,   167,   167,   167,   167,   167,
-     167,   167,   167,   167,   145,   167,   167,   145,   129,   132,
-     133,   145,   145,   180,   130,    10,   181,   181,     3,   144,
-     183,    49,   192,   192,   192,   192,   192,   192,   192,   192,
-     192,   192,   192,   192,   192,   192,   192,   178,   178,   192,
-     165,   168,   192,   168,   192,   176,   176,   168,   192,   168,
-     192,   177,   144,   143,     8,   189,   191,   187,   187,     3,
-     189,   125,   191,   181,   192,     8,   157,   145,   145,   129,
-     145,   145,   145,   129,   129,   145,   145,   145,   178,   181,
-     181,   178,   178,    50,    52,   129,    33,     8,   129,   145,
-     172,   189,   189,   129,     3,   155,   111,   166,   167,   167,
-     167,   145,   145,   145,    52,   129,    51,   178,   178,   192,
-     192,   170,   173,   189,   166,     6,   145,   145,   145,   178,
-     178,   131,    36,   169,   145,   145,   131,   134,   192,    92,
-     145,   192,   158,     8
-};
-
-  /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
-static const yytype_uint8 yyr1[] =
-{
-       0,   146,   147,   147,   148,   149,   149,   150,   150,   151,
-     151,   152,   152,   152,   152,   152,   152,   152,   152,   152,
-     152,   153,   152,   152,   154,   155,   152,   156,   157,   152,
-     158,   152,   152,   159,   152,   152,   152,   160,   160,   161,
-     161,   161,   162,   162,   163,   163,   163,   165,   164,   166,
-     166,   167,   167,   168,   168,   168,   168,   168,   168,   168,
-     168,   168,   169,   169,   169,   170,   170,   170,   170,   171,
-     172,   170,   170,   173,   173,   174,   174,   174,   174,   174,
-     174,   174,   174,   174,   174,   174,   175,   174,   174,   174,
-     174,   174,   174,   174,   174,   174,   174,   174,   174,   174,
-     174,   174,   174,   174,   174,   174,   174,   174,   174,   174,
-     174,   174,   174,   174,   174,   174,   174,   174,   174,   174,
-     174,   174,   174,   174,   174,   174,   174,   174,   174,   174,
-     174,   174,   174,   174,   174,   174,   176,   176,   177,   177,
-     178,   178,   178,   179,   179,   179,   179,   179,   179,   179,
-     179,   179,   179,   180,   180,   181,   181,   182,   182,   182,
-     182,   182,   183,   183,   183,   184,   184,   185,   185,   186,
-     186,   187,   187,   187,   187,   187,   187,   187,   187,   187,
-     188,   188,   189,   189,   189,   190,   190,   190,   190,   190,
-     190,   191,   191,   191,   191,   191,   191,   191,   191,   191,
-     191,   191,   191,   191,   191,   191,   191,   191,   191,   191,
-     191,   191,   191,   191,   191,   191,   191,   191,   191,   191,
-     191,   191,   191,   192,   192,   193,   194,   194,   194,   194,
-     194,   194,   194,   194,   194,   194,   194,   194,   194,   194,
-     194,   194,   194,   194,   194,   194,   194,   194,   194,   194,
-     194,   194,   194,   194,   194,   194,   194,   194,   194,   194,
-     194
-};
-
-  /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN.  */
-static const yytype_uint8 yyr2[] =
-{
-       0,     2,     1,     1,     3,     1,     3,     0,     1,     1,
-       2,     3,     3,     4,     1,     1,     1,     1,     1,     2,
-       2,     0,     3,     2,     0,     0,     7,     0,     0,     6,
-       0,    10,     1,     0,     4,     1,     1,     1,     1,     2,
-       2,     3,     1,     2,     1,     1,     1,     0,     5,     0,
-       2,     1,     1,     3,     3,     3,     3,     3,     3,     3,
-       3,     2,     0,     2,     3,     1,     4,     4,     4,     0,
-       0,     6,     1,     0,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     2,     3,     0,     4,     3,     3,
-       3,     3,     2,     2,     3,     2,     3,     2,     3,     2,
-       3,     3,     3,     3,     3,     3,     3,     2,     2,     2,
-       3,     2,     3,     2,     3,     3,     3,     3,     3,     3,
-       2,     3,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     3,     2,     1,     5,     0,     3,
-       1,     1,     3,     1,     3,     5,     3,     5,     5,     5,
-       7,     6,     8,     1,     4,     3,     3,     1,     2,     2,
-       3,     1,     1,     1,     3,     1,     3,     1,     2,     2,
-       2,     1,     1,     1,     1,     1,     1,     1,     2,     1,
-       2,     3,     1,     1,     2,     1,     5,     4,     3,     3,
-       2,     1,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     1,     1,     2,     2,     2,     2,
-       1,     1,     2,     2,     2,     2,     1,     1,     1,     1,
-       1,     1,     1,     1,     1,     3,     1,     1,     2,     2,
-       2,     2,     2,     3,     3,     3,     3,     3,     3,     2,
-       3,     4,     4,     6,     4,     4,     4,     6,     6,     4,
-       4,     3,     4,     3,     3,     3,     3,     3,     3,     3,
-       2
-};
-
-
-#define yyerrok         (yyerrstatus = 0)
-#define yyclearin       (yychar = YYEMPTY)
-#define YYEMPTY         (-2)
-#define YYEOF           0
-
-#define YYACCEPT        goto yyacceptlab
-#define YYABORT         goto yyabortlab
-#define YYERROR         goto yyerrorlab
-
-
-#define YYRECOVERING()  (!!yyerrstatus)
-
-#define YYBACKUP(Token, Value)                                  \
-do                                                              \
-  if (yychar == YYEMPTY)                                        \
-    {                                                           \
-      yychar = (Token);                                         \
-      yylval = (Value);                                         \
-      YYPOPSTACK (yylen);                                       \
-      yystate = *yyssp;                                         \
-      goto yybackup;                                            \
-    }                                                           \
-  else                                                          \
-    {                                                           \
-      yyerror (YY_("syntax error: cannot back up")); \
-      YYERROR;                                                  \
-    }                                                           \
-while (0)
-
-/* Error token number */
-#define YYTERROR        1
-#define YYERRCODE       256
-
-
-
-/* Enable debugging if requested.  */
-#if YYDEBUG
-
-# ifndef YYFPRINTF
-#  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
-#  define YYFPRINTF fprintf
-# endif
-
-# define YYDPRINTF(Args)                        \
-do {                                            \
-  if (yydebug)                                  \
-    YYFPRINTF Args;                             \
-} while (0)
-
-/* This macro is provided for backward compatibility. */
-#ifndef YY_LOCATION_PRINT
-# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
-#endif
-
-
-# define YY_SYMBOL_PRINT(Title, Type, Value, Location)                    \
-do {                                                                      \
-  if (yydebug)                                                            \
-    {                                                                     \
-      YYFPRINTF (stderr, "%s ", Title);                                   \
-      yy_symbol_print (stderr,                                            \
-                  Type, Value); \
-      YYFPRINTF (stderr, "\n");                                           \
-    }                                                                     \
-} while (0)
-
-
-/*----------------------------------------.
-| Print this symbol's value on YYOUTPUT.  |
-`----------------------------------------*/
-
-static void
-yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
-{
-  FILE *yyo = yyoutput;
-  YYUSE (yyo);
-  if (!yyvaluep)
-    return;
-# ifdef YYPRINT
-  if (yytype < YYNTOKENS)
-    YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
-# endif
-  YYUSE (yytype);
-}
-
-
-/*--------------------------------.
-| Print this symbol on YYOUTPUT.  |
-`--------------------------------*/
-
-static void
-yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
-{
-  YYFPRINTF (yyoutput, "%s %s (",
-             yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]);
-
-  yy_symbol_value_print (yyoutput, yytype, yyvaluep);
-  YYFPRINTF (yyoutput, ")");
-}
-
-/*------------------------------------------------------------------.
-| yy_stack_print -- Print the state stack from its BOTTOM up to its |
-| TOP (included).                                                   |
-`------------------------------------------------------------------*/
-
-static void
-yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
-{
-  YYFPRINTF (stderr, "Stack now");
-  for (; yybottom <= yytop; yybottom++)
-    {
-      int yybot = *yybottom;
-      YYFPRINTF (stderr, " %d", yybot);
-    }
-  YYFPRINTF (stderr, "\n");
-}
-
-# define YY_STACK_PRINT(Bottom, Top)                            \
-do {                                                            \
-  if (yydebug)                                                  \
-    yy_stack_print ((Bottom), (Top));                           \
-} while (0)
-
-
-/*------------------------------------------------.
-| Report that the YYRULE is going to be reduced.  |
-`------------------------------------------------*/
-
-static void
-yy_reduce_print (yytype_int16 *yyssp, YYSTYPE *yyvsp, int yyrule)
-{
-  unsigned long int yylno = yyrline[yyrule];
-  int yynrhs = yyr2[yyrule];
-  int yyi;
-  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
-             yyrule - 1, yylno);
-  /* The symbols being reduced.  */
-  for (yyi = 0; yyi < yynrhs; yyi++)
-    {
-      YYFPRINTF (stderr, "   $%d = ", yyi + 1);
-      yy_symbol_print (stderr,
-                       yystos[yyssp[yyi + 1 - yynrhs]],
-                       &(yyvsp[(yyi + 1) - (yynrhs)])
-                                              );
-      YYFPRINTF (stderr, "\n");
-    }
-}
-
-# define YY_REDUCE_PRINT(Rule)          \
-do {                                    \
-  if (yydebug)                          \
-    yy_reduce_print (yyssp, yyvsp, Rule); \
-} while (0)
-
-/* Nonzero means print parse trace.  It is left uninitialized so that
-   multiple parsers can coexist.  */
-int yydebug;
-#else /* !YYDEBUG */
-# define YYDPRINTF(Args)
-# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
-# define YY_STACK_PRINT(Bottom, Top)
-# define YY_REDUCE_PRINT(Rule)
-#endif /* !YYDEBUG */
-
-
-/* YYINITDEPTH -- initial size of the parser's stacks.  */
-#ifndef YYINITDEPTH
-# define YYINITDEPTH 200
-#endif
-
-/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
-   if the built-in stack extension method is used).
-
-   Do not make this value too large; the results are undefined if
-   YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
-   evaluated with infinite-precision integer arithmetic.  */
-
-#ifndef YYMAXDEPTH
-# define YYMAXDEPTH 10000
-#endif
-
-
-#if YYERROR_VERBOSE
-
-# ifndef yystrlen
-#  if defined __GLIBC__ && defined _STRING_H
-#   define yystrlen strlen
-#  else
-/* Return the length of YYSTR.  */
-static YYSIZE_T
-yystrlen (const char *yystr)
-{
-  YYSIZE_T yylen;
-  for (yylen = 0; yystr[yylen]; yylen++)
-    continue;
-  return yylen;
-}
-#  endif
-# endif
-
-# ifndef yystpcpy
-#  if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
-#   define yystpcpy stpcpy
-#  else
-/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
-   YYDEST.  */
-static char *
-yystpcpy (char *yydest, const char *yysrc)
-{
-  char *yyd = yydest;
-  const char *yys = yysrc;
-
-  while ((*yyd++ = *yys++) != '\0')
-    continue;
-
-  return yyd - 1;
-}
-#  endif
-# endif
-
-# ifndef yytnamerr
-/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
-   quotes and backslashes, so that it's suitable for yyerror.  The
-   heuristic is that double-quoting is unnecessary unless the string
-   contains an apostrophe, a comma, or backslash (other than
-   backslash-backslash).  YYSTR is taken from yytname.  If YYRES is
-   null, do not copy; instead, return the length of what the result
-   would have been.  */
-static YYSIZE_T
-yytnamerr (char *yyres, const char *yystr)
-{
-  if (*yystr == '"')
-    {
-      YYSIZE_T yyn = 0;
-      char const *yyp = yystr;
-
-      for (;;)
-        switch (*++yyp)
-          {
-          case '\'':
-          case ',':
-            goto do_not_strip_quotes;
-
-          case '\\':
-            if (*++yyp != '\\')
-              goto do_not_strip_quotes;
-            /* Fall through.  */
-          default:
-            if (yyres)
-              yyres[yyn] = *yyp;
-            yyn++;
-            break;
-
-          case '"':
-            if (yyres)
-              yyres[yyn] = '\0';
-            return yyn;
-          }
-    do_not_strip_quotes: ;
-    }
-
-  if (! yyres)
-    return yystrlen (yystr);
-
-  return yystpcpy (yyres, yystr) - yyres;
-}
-# endif
-
-/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
-   about the unexpected token YYTOKEN for the state stack whose top is
-   YYSSP.
-
-   Return 0 if *YYMSG was successfully written.  Return 1 if *YYMSG is
-   not large enough to hold the message.  In that case, also set
-   *YYMSG_ALLOC to the required number of bytes.  Return 2 if the
-   required number of bytes is too large to store.  */
-static int
-yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
-                yytype_int16 *yyssp, int yytoken)
-{
-  YYSIZE_T yysize0 = yytnamerr (YY_NULLPTR, yytname[yytoken]);
-  YYSIZE_T yysize = yysize0;
-  enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
-  /* Internationalized format string. */
-  const char *yyformat = YY_NULLPTR;
-  /* Arguments of yyformat. */
-  char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
-  /* Number of reported tokens (one for the "unexpected", one per
-     "expected"). */
-  int yycount = 0;
-
-  /* There are many possibilities here to consider:
-     - If this state is a consistent state with a default action, then
-       the only way this function was invoked is if the default action
-       is an error action.  In that case, don't check for expected
-       tokens because there are none.
-     - The only way there can be no lookahead present (in yychar) is if
-       this state is a consistent state with a default action.  Thus,
-       detecting the absence of a lookahead is sufficient to determine
-       that there is no unexpected or expected token to report.  In that
-       case, just report a simple "syntax error".
-     - Don't assume there isn't a lookahead just because this state is a
-       consistent state with a default action.  There might have been a
-       previous inconsistent state, consistent state with a non-default
-       action, or user semantic action that manipulated yychar.
-     - Of course, the expected token list depends on states to have
-       correct lookahead information, and it depends on the parser not
-       to perform extra reductions after fetching a lookahead from the
-       scanner and before detecting a syntax error.  Thus, state merging
-       (from LALR or IELR) and default reductions corrupt the expected
-       token list.  However, the list is correct for canonical LR with
-       one exception: it will still contain any token that will not be
-       accepted due to an error action in a later state.
-  */
-  if (yytoken != YYEMPTY)
-    {
-      int yyn = yypact[*yyssp];
-      yyarg[yycount++] = yytname[yytoken];
-      if (!yypact_value_is_default (yyn))
-        {
-          /* Start YYX at -YYN if negative to avoid negative indexes in
-             YYCHECK.  In other words, skip the first -YYN actions for
-             this state because they are default actions.  */
-          int yyxbegin = yyn < 0 ? -yyn : 0;
-          /* Stay within bounds of both yycheck and yytname.  */
-          int yychecklim = YYLAST - yyn + 1;
-          int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
-          int yyx;
-
-          for (yyx = yyxbegin; yyx < yyxend; ++yyx)
-            if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
-                && !yytable_value_is_error (yytable[yyx + yyn]))
-              {
-                if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
-                  {
-                    yycount = 1;
-                    yysize = yysize0;
-                    break;
-                  }
-                yyarg[yycount++] = yytname[yyx];
-                {
-                  YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULLPTR, yytname[yyx]);
-                  if (! (yysize <= yysize1
-                         && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
-                    return 2;
-                  yysize = yysize1;
-                }
-              }
-        }
-    }
-
-  switch (yycount)
-    {
-# define YYCASE_(N, S)                      \
-      case N:                               \
-        yyformat = S;                       \
-      break
-      YYCASE_(0, YY_("syntax error"));
-      YYCASE_(1, YY_("syntax error, unexpected %s"));
-      YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
-      YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
-      YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
-      YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
-# undef YYCASE_
-    }
-
-  {
-    YYSIZE_T yysize1 = yysize + yystrlen (yyformat);
-    if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
-      return 2;
-    yysize = yysize1;
-  }
-
-  if (*yymsg_alloc < yysize)
-    {
-      *yymsg_alloc = 2 * yysize;
-      if (! (yysize <= *yymsg_alloc
-             && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
-        *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
-      return 1;
-    }
-
-  /* Avoid sprintf, as that infringes on the user's name space.
-     Don't have undefined behavior even if the translation
-     produced a string with the wrong number of "%s"s.  */
-  {
-    char *yyp = *yymsg;
-    int yyi = 0;
-    while ((*yyp = *yyformat) != '\0')
-      if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
-        {
-          yyp += yytnamerr (yyp, yyarg[yyi++]);
-          yyformat += 2;
-        }
-      else
-        {
-          yyp++;
-          yyformat++;
-        }
-  }
-  return 0;
-}
-#endif /* YYERROR_VERBOSE */
-
-/*-----------------------------------------------.
-| Release the memory associated to this symbol.  |
-`-----------------------------------------------*/
-
-static void
-yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep)
-{
-  YYUSE (yyvaluep);
-  if (!yymsg)
-    yymsg = "Deleting";
-  YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
-
-  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-  YYUSE (yytype);
-  YY_IGNORE_MAYBE_UNINITIALIZED_END
-}
-
-
-
-
-/* The lookahead symbol.  */
-int yychar;
-
-/* The semantic value of the lookahead symbol.  */
-YYSTYPE yylval;
-/* Number of syntax errors so far.  */
-int yynerrs;
-
-
-/*----------.
-| yyparse.  |
-`----------*/
-
-int
-yyparse (void)
-{
-    int yystate;
-    /* Number of tokens to shift before error messages enabled.  */
-    int yyerrstatus;
-
-    /* The stacks and their tools:
-       'yyss': related to states.
-       'yyvs': related to semantic values.
-
-       Refer to the stacks through separate pointers, to allow yyoverflow
-       to reallocate them elsewhere.  */
-
-    /* The state stack.  */
-    yytype_int16 yyssa[YYINITDEPTH];
-    yytype_int16 *yyss;
-    yytype_int16 *yyssp;
-
-    /* The semantic value stack.  */
-    YYSTYPE yyvsa[YYINITDEPTH];
-    YYSTYPE *yyvs;
-    YYSTYPE *yyvsp;
-
-    YYSIZE_T yystacksize;
-
-  int yyn;
-  int yyresult;
-  /* Lookahead token as an internal (translated) token number.  */
-  int yytoken = 0;
-  /* The variables used to return semantic value and location from the
-     action routines.  */
-  YYSTYPE yyval;
-
-#if YYERROR_VERBOSE
-  /* Buffer for error messages, and its allocated size.  */
-  char yymsgbuf[128];
-  char *yymsg = yymsgbuf;
-  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
-#endif
-
-#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N))
-
-  /* The number of symbols on the RHS of the reduced rule.
-     Keep to zero when no symbol should be popped.  */
-  int yylen = 0;
-
-  yyssp = yyss = yyssa;
-  yyvsp = yyvs = yyvsa;
-  yystacksize = YYINITDEPTH;
-
-  YYDPRINTF ((stderr, "Starting parse\n"));
-
-  yystate = 0;
-  yyerrstatus = 0;
-  yynerrs = 0;
-  yychar = YYEMPTY; /* Cause a token to be read.  */
-  goto yysetstate;
-
-/*------------------------------------------------------------.
-| yynewstate -- Push a new state, which is found in yystate.  |
-`------------------------------------------------------------*/
- yynewstate:
-  /* In all cases, when you get here, the value and location stacks
-     have just been pushed.  So pushing a state here evens the stacks.  */
-  yyssp++;
-
- yysetstate:
-  *yyssp = yystate;
-
-  if (yyss + yystacksize - 1 <= yyssp)
-    {
-      /* Get the current used size of the three stacks, in elements.  */
-      YYSIZE_T yysize = yyssp - yyss + 1;
-
-#ifdef yyoverflow
-      {
-        /* Give user a chance to reallocate the stack.  Use copies of
-           these so that the &'s don't force the real ones into
-           memory.  */
-        YYSTYPE *yyvs1 = yyvs;
-        yytype_int16 *yyss1 = yyss;
-
-        /* Each stack pointer address is followed by the size of the
-           data in use in that stack, in bytes.  This used to be a
-           conditional around just the two extra args, but that might
-           be undefined if yyoverflow is a macro.  */
-        yyoverflow (YY_("memory exhausted"),
-                    &yyss1, yysize * sizeof (*yyssp),
-                    &yyvs1, yysize * sizeof (*yyvsp),
-                    &yystacksize);
-
-        yyss = yyss1;
-        yyvs = yyvs1;
-      }
-#else /* no yyoverflow */
-# ifndef YYSTACK_RELOCATE
-      goto yyexhaustedlab;
-# else
-      /* Extend the stack our own way.  */
-      if (YYMAXDEPTH <= yystacksize)
-        goto yyexhaustedlab;
-      yystacksize *= 2;
-      if (YYMAXDEPTH < yystacksize)
-        yystacksize = YYMAXDEPTH;
-
-      {
-        yytype_int16 *yyss1 = yyss;
-        union yyalloc *yyptr =
-          (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
-        if (! yyptr)
-          goto yyexhaustedlab;
-        YYSTACK_RELOCATE (yyss_alloc, yyss);
-        YYSTACK_RELOCATE (yyvs_alloc, yyvs);
-#  undef YYSTACK_RELOCATE
-        if (yyss1 != yyssa)
-          YYSTACK_FREE (yyss1);
-      }
-# endif
-#endif /* no yyoverflow */
-
-      yyssp = yyss + yysize - 1;
-      yyvsp = yyvs + yysize - 1;
-
-      YYDPRINTF ((stderr, "Stack size increased to %lu\n",
-                  (unsigned long int) yystacksize));
-
-      if (yyss + yystacksize - 1 <= yyssp)
-        YYABORT;
-    }
-
-  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
-
-  if (yystate == YYFINAL)
-    YYACCEPT;
-
-  goto yybackup;
-
-/*-----------.
-| yybackup.  |
-`-----------*/
-yybackup:
-
-  /* Do appropriate processing given the current state.  Read a
-     lookahead token if we need one and don't already have one.  */
-
-  /* First try to decide what to do without reference to lookahead token.  */
-  yyn = yypact[yystate];
-  if (yypact_value_is_default (yyn))
-    goto yydefault;
-
-  /* Not known => get a lookahead token if don't already have one.  */
-
-  /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol.  */
-  if (yychar == YYEMPTY)
-    {
-      YYDPRINTF ((stderr, "Reading a token: "));
-      yychar = yylex ();
-    }
-
-  if (yychar <= YYEOF)
-    {
-      yychar = yytoken = YYEOF;
-      YYDPRINTF ((stderr, "Now at end of input.\n"));
-    }
-  else
-    {
-      yytoken = YYTRANSLATE (yychar);
-      YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
-    }
-
-  /* If the proper action on seeing token YYTOKEN is to reduce or to
-     detect an error, take that action.  */
-  yyn += yytoken;
-  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
-    goto yydefault;
-  yyn = yytable[yyn];
-  if (yyn <= 0)
-    {
-      if (yytable_value_is_error (yyn))
-        goto yyerrlab;
-      yyn = -yyn;
-      goto yyreduce;
-    }
-
-  /* Count tokens shifted since error; after three, turn off error
-     status.  */
-  if (yyerrstatus)
-    yyerrstatus--;
-
-  /* Shift the lookahead token.  */
-  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
-
-  /* Discard the shifted token.  */
-  yychar = YYEMPTY;
-
-  yystate = yyn;
-  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-  *++yyvsp = yylval;
-  YY_IGNORE_MAYBE_UNINITIALIZED_END
-
-  goto yynewstate;
-
-
-/*-----------------------------------------------------------.
-| yydefault -- do the default action for the current state.  |
-`-----------------------------------------------------------*/
-yydefault:
-  yyn = yydefact[yystate];
-  if (yyn == 0)
-    goto yyerrlab;
-  goto yyreduce;
-
-
-/*-----------------------------.
-| yyreduce -- Do a reduction.  |
-`-----------------------------*/
-yyreduce:
-  /* yyn is the number of a rule to reduce with.  */
-  yylen = yyr2[yyn];
-
-  /* If YYLEN is nonzero, implement the default value of the action:
-     '$$ = $1'.
-
-     Otherwise, the following line sets YYVAL to garbage.
-     This behavior is undocumented and Bison
-     users should not rely upon it.  Assigning to YYVAL
-     unconditionally makes the parser a bit smaller, and it avoids a
-     GCC warning that YYVAL may be used uninitialized.  */
-  yyval = yyvsp[1-yylen];
-
-
-  YY_REDUCE_PRINT (yyn);
-  switch (yyn)
-    {
-        case 3:
-#line 277 "pic.y" /* yacc.c:1646  */
-    {
-		  if (olist.head)
-		    print_picture(olist.head);
-		}
-#line 2260 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 4:
-#line 286 "pic.y" /* yacc.c:1646  */
-    { (yyval.pl) = (yyvsp[-1].pl); }
-#line 2266 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 5:
-#line 291 "pic.y" /* yacc.c:1646  */
-    { (yyval.pl) = (yyvsp[0].pl); }
-#line 2272 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 6:
-#line 293 "pic.y" /* yacc.c:1646  */
-    { (yyval.pl) = (yyvsp[-2].pl); }
-#line 2278 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 11:
-#line 308 "pic.y" /* yacc.c:1646  */
-    {
-		  a_delete graphname;
-		  graphname = new char[strlen((yyvsp[0].str)) + 1];
-		  strcpy(graphname, (yyvsp[0].str));
-		  a_delete (yyvsp[0].str);
-		}
-#line 2289 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 12:
-#line 316 "pic.y" /* yacc.c:1646  */
-    {
-		  define_variable((yyvsp[-2].str), (yyvsp[0].x));
-		  a_delete (yyvsp[-2].str);
-		}
-#line 2298 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 13:
-#line 321 "pic.y" /* yacc.c:1646  */
-    {
-		  place *p = lookup_label((yyvsp[-3].str));
-		  if (!p) {
-		    lex_error("variable `%1' not defined", (yyvsp[-3].str));
-		    YYABORT;
-		  }
-		  p->obj = 0;
-		  p->x = (yyvsp[0].x);
-		  p->y = 0.0;
-		  a_delete (yyvsp[-3].str);
-		}
-#line 2314 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 14:
-#line 333 "pic.y" /* yacc.c:1646  */
-    { current_direction = UP_DIRECTION; }
-#line 2320 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 15:
-#line 335 "pic.y" /* yacc.c:1646  */
-    { current_direction = DOWN_DIRECTION; }
-#line 2326 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 16:
-#line 337 "pic.y" /* yacc.c:1646  */
-    { current_direction = LEFT_DIRECTION; }
-#line 2332 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 17:
-#line 339 "pic.y" /* yacc.c:1646  */
-    { current_direction = RIGHT_DIRECTION; }
-#line 2338 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 18:
-#line 341 "pic.y" /* yacc.c:1646  */
-    {
-		  olist.append(make_command_object((yyvsp[0].lstr).str, (yyvsp[0].lstr).filename,
-						   (yyvsp[0].lstr).lineno));
-		}
-#line 2347 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 19:
-#line 346 "pic.y" /* yacc.c:1646  */
-    {
-		  olist.append(make_command_object((yyvsp[0].lstr).str, (yyvsp[0].lstr).filename,
-						   (yyvsp[0].lstr).lineno));
-		}
-#line 2356 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 20:
-#line 351 "pic.y" /* yacc.c:1646  */
-    {
-		  fprintf(stderr, "%s\n", (yyvsp[0].lstr).str);
-		  a_delete (yyvsp[0].lstr).str;
-		  fflush(stderr);
-		}
-#line 2366 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 21:
-#line 357 "pic.y" /* yacc.c:1646  */
-    { delim_flag = 1; }
-#line 2372 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 22:
-#line 359 "pic.y" /* yacc.c:1646  */
-    {
-		  delim_flag = 0;
-		  if (safer_flag)
-		    lex_error("unsafe to run command `%1'", (yyvsp[0].str));
-		  else
-		    system((yyvsp[0].str));
-		  a_delete (yyvsp[0].str);
-		}
-#line 2385 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 23:
-#line 368 "pic.y" /* yacc.c:1646  */
-    {
-		  if (yychar < 0)
-		    do_lookahead();
-		  do_copy((yyvsp[0].lstr).str);
-		  // do not delete the filename
-		}
-#line 2396 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 24:
-#line 375 "pic.y" /* yacc.c:1646  */
-    { delim_flag = 2; }
-#line 2402 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 25:
-#line 377 "pic.y" /* yacc.c:1646  */
-    { delim_flag = 0; }
-#line 2408 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 26:
-#line 379 "pic.y" /* yacc.c:1646  */
-    {
-		  if (yychar < 0)
-		    do_lookahead();
-		  copy_file_thru((yyvsp[-5].lstr).str, (yyvsp[-2].str), (yyvsp[0].str));
-		  // do not delete the filename
-		  a_delete (yyvsp[-2].str);
-		  a_delete (yyvsp[0].str);
-		}
-#line 2421 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 27:
-#line 388 "pic.y" /* yacc.c:1646  */
-    { delim_flag = 2; }
-#line 2427 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 28:
-#line 390 "pic.y" /* yacc.c:1646  */
-    { delim_flag = 0; }
-#line 2433 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 29:
-#line 392 "pic.y" /* yacc.c:1646  */
-    {
-		  if (yychar < 0)
-		    do_lookahead();
-		  copy_rest_thru((yyvsp[-2].str), (yyvsp[0].str));
-		  a_delete (yyvsp[-2].str);
-		  a_delete (yyvsp[0].str);
-		}
-#line 2445 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 30:
-#line 400 "pic.y" /* yacc.c:1646  */
-    { delim_flag = 1; }
-#line 2451 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 31:
-#line 402 "pic.y" /* yacc.c:1646  */
-    {
-		  delim_flag = 0;
-		  if (yychar < 0)
-		    do_lookahead();
-		  do_for((yyvsp[-8].str), (yyvsp[-6].x), (yyvsp[-4].x), (yyvsp[-3].by).is_multiplicative, (yyvsp[-3].by).val, (yyvsp[0].str)); 
-		}
-#line 2462 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 32:
-#line 409 "pic.y" /* yacc.c:1646  */
-    {
-		  if (yychar < 0)
-		    do_lookahead();
-		  if ((yyvsp[0].if_data).x != 0.0)
-		    push_body((yyvsp[0].if_data).body);
-		  a_delete (yyvsp[0].if_data).body;
-		}
-#line 2474 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 33:
-#line 417 "pic.y" /* yacc.c:1646  */
-    { delim_flag = 1; }
-#line 2480 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 34:
-#line 419 "pic.y" /* yacc.c:1646  */
-    {
-		  delim_flag = 0;
-		  if (yychar < 0)
-		    do_lookahead();
-		  if ((yyvsp[-3].if_data).x != 0.0)
-		    push_body((yyvsp[-3].if_data).body);
-		  else
-		    push_body((yyvsp[0].str));
-		  a_delete (yyvsp[-3].if_data).body;
-		  a_delete (yyvsp[0].str);
-		}
-#line 2496 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 36:
-#line 432 "pic.y" /* yacc.c:1646  */
-    { define_variable("scale", 1.0); }
-#line 2502 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 39:
-#line 442 "pic.y" /* yacc.c:1646  */
-    {
-		  reset((yyvsp[0].str));
-		  a_delete (yyvsp[0].str);
-		}
-#line 2511 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 40:
-#line 447 "pic.y" /* yacc.c:1646  */
-    {
-		  reset((yyvsp[0].str));
-		  a_delete (yyvsp[0].str);
-		}
-#line 2520 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 41:
-#line 452 "pic.y" /* yacc.c:1646  */
-    {
-		  reset((yyvsp[0].str));
-		  a_delete (yyvsp[0].str);
-		}
-#line 2529 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 42:
-#line 460 "pic.y" /* yacc.c:1646  */
-    { (yyval.lstr) = (yyvsp[0].lstr); }
-#line 2535 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 43:
-#line 462 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.lstr).str = new char[strlen((yyvsp[-1].lstr).str) + strlen((yyvsp[0].lstr).str) + 1];
-		  strcpy((yyval.lstr).str, (yyvsp[-1].lstr).str);
-		  strcat((yyval.lstr).str, (yyvsp[0].lstr).str);
-		  a_delete (yyvsp[-1].lstr).str;
-		  a_delete (yyvsp[0].lstr).str;
-		  if ((yyvsp[-1].lstr).filename) {
-		    (yyval.lstr).filename = (yyvsp[-1].lstr).filename;
-		    (yyval.lstr).lineno = (yyvsp[-1].lstr).lineno;
-		  }
-		  else if ((yyvsp[0].lstr).filename) {
-		    (yyval.lstr).filename = (yyvsp[0].lstr).filename;
-		    (yyval.lstr).lineno = (yyvsp[0].lstr).lineno;
-		  }
-		}
-#line 2555 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 44:
-#line 481 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.lstr).str = new char[GDIGITS + 1];
-		  sprintf((yyval.lstr).str, "%g", (yyvsp[0].x));
-		  (yyval.lstr).filename = 0;
-		  (yyval.lstr).lineno = 0;
-		}
-#line 2566 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 45:
-#line 488 "pic.y" /* yacc.c:1646  */
-    { (yyval.lstr) = (yyvsp[0].lstr); }
-#line 2572 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 46:
-#line 490 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.lstr).str = new char[GDIGITS + 2 + GDIGITS + 1];
-		  sprintf((yyval.lstr).str, "%g, %g", (yyvsp[0].pair).x, (yyvsp[0].pair).y);
-		  (yyval.lstr).filename = 0;
-		  (yyval.lstr).lineno = 0;
-		}
-#line 2583 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 47:
-#line 500 "pic.y" /* yacc.c:1646  */
-    { delim_flag = 1; }
-#line 2589 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 48:
-#line 502 "pic.y" /* yacc.c:1646  */
-    {
-		  delim_flag = 0;
-		  (yyval.if_data).x = (yyvsp[-3].x);
-		  (yyval.if_data).body = (yyvsp[0].str);
-		}
-#line 2599 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 49:
-#line 511 "pic.y" /* yacc.c:1646  */
-    { (yyval.str) = 0; }
-#line 2605 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 50:
-#line 513 "pic.y" /* yacc.c:1646  */
-    { (yyval.str) = (yyvsp[0].lstr).str; }
-#line 2611 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 51:
-#line 518 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[0].x); }
-#line 2617 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 52:
-#line 520 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[0].x); }
-#line 2623 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 53:
-#line 525 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.x) = strcmp((yyvsp[-2].lstr).str, (yyvsp[0].lstr).str) == 0;
-		  a_delete (yyvsp[-2].lstr).str;
-		  a_delete (yyvsp[0].lstr).str;
-		}
-#line 2633 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 54:
-#line 531 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.x) = strcmp((yyvsp[-2].lstr).str, (yyvsp[0].lstr).str) != 0;
-		  a_delete (yyvsp[-2].lstr).str;
-		  a_delete (yyvsp[0].lstr).str;
-		}
-#line 2643 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 55:
-#line 537 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) != 0.0 && (yyvsp[0].x) != 0.0); }
-#line 2649 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 56:
-#line 539 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) != 0.0 && (yyvsp[0].x) != 0.0); }
-#line 2655 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 57:
-#line 541 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) != 0.0 && (yyvsp[0].x) != 0.0); }
-#line 2661 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 58:
-#line 543 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) != 0.0 || (yyvsp[0].x) != 0.0); }
-#line 2667 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 59:
-#line 545 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) != 0.0 || (yyvsp[0].x) != 0.0); }
-#line 2673 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 60:
-#line 547 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) != 0.0 || (yyvsp[0].x) != 0.0); }
-#line 2679 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 61:
-#line 549 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[0].x) == 0.0); }
-#line 2685 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 62:
-#line 555 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.by).val = 1.0;
-		  (yyval.by).is_multiplicative = 0;
-		}
-#line 2694 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 63:
-#line 560 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.by).val = (yyvsp[0].x);
-		  (yyval.by).is_multiplicative = 0;
-		}
-#line 2703 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 64:
-#line 565 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.by).val = (yyvsp[0].x);
-		  (yyval.by).is_multiplicative = 1;
-		}
-#line 2712 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 65:
-#line 573 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pl).obj = (yyvsp[0].spec)->make_object(&current_position,
-					   &current_direction);
-		  if ((yyval.pl).obj == 0)
-		    YYABORT;
-		  delete (yyvsp[0].spec);
-		  if ((yyval.pl).obj)
-		    olist.append((yyval.pl).obj);
-		  else {
-		    (yyval.pl).x = current_position.x;
-		    (yyval.pl).y = current_position.y;
-		  }
-		}
-#line 2730 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 66:
-#line 587 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pl) = (yyvsp[0].pl);
-		  define_label((yyvsp[-3].str), & (yyval.pl));
-		  a_delete (yyvsp[-3].str);
-		}
-#line 2740 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 67:
-#line 593 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pl).obj = 0;
-		  (yyval.pl).x = (yyvsp[0].pair).x;
-		  (yyval.pl).y = (yyvsp[0].pair).y;
-		  define_label((yyvsp[-3].str), & (yyval.pl));
-		  a_delete (yyvsp[-3].str);
-		}
-#line 2752 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 68:
-#line 601 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pl) = (yyvsp[0].pl);
-		  define_label((yyvsp[-3].str), & (yyval.pl));
-		  a_delete (yyvsp[-3].str);
-		}
-#line 2762 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 69:
-#line 607 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.state).x = current_position.x;
-		  (yyval.state).y = current_position.y;
-		  (yyval.state).dir = current_direction;
-		}
-#line 2772 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 70:
-#line 613 "pic.y" /* yacc.c:1646  */
-    {
-		  current_position.x = (yyvsp[-2].state).x;
-		  current_position.y = (yyvsp[-2].state).y;
-		  current_direction = (yyvsp[-2].state).dir;
-		}
-#line 2782 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 71:
-#line 619 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pl) = (yyvsp[-3].pl);
-		}
-#line 2790 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 72:
-#line 623 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pl).obj = 0;
-		  (yyval.pl).x = current_position.x;
-		  (yyval.pl).y = current_position.y;
-		}
-#line 2800 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 73:
-#line 632 "pic.y" /* yacc.c:1646  */
-    {}
-#line 2806 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 74:
-#line 634 "pic.y" /* yacc.c:1646  */
-    {}
-#line 2812 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 75:
-#line 639 "pic.y" /* yacc.c:1646  */
-    { (yyval.spec) = new object_spec(BOX_OBJECT); }
-#line 2818 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 76:
-#line 641 "pic.y" /* yacc.c:1646  */
-    { (yyval.spec) = new object_spec(CIRCLE_OBJECT); }
-#line 2824 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 77:
-#line 643 "pic.y" /* yacc.c:1646  */
-    { (yyval.spec) = new object_spec(ELLIPSE_OBJECT); }
-#line 2830 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 78:
-#line 645 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = new object_spec(ARC_OBJECT);
-		  (yyval.spec)->dir = current_direction;
-		}
-#line 2839 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 79:
-#line 650 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = new object_spec(LINE_OBJECT);
-		  lookup_variable("lineht", & (yyval.spec)->segment_height);
-		  lookup_variable("linewid", & (yyval.spec)->segment_width);
-		  (yyval.spec)->dir = current_direction;
-		}
-#line 2850 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 80:
-#line 657 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = new object_spec(ARROW_OBJECT);
-		  lookup_variable("lineht", & (yyval.spec)->segment_height);
-		  lookup_variable("linewid", & (yyval.spec)->segment_width);
-		  (yyval.spec)->dir = current_direction;
-		}
-#line 2861 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 81:
-#line 664 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = new object_spec(MOVE_OBJECT);
-		  lookup_variable("moveht", & (yyval.spec)->segment_height);
-		  lookup_variable("movewid", & (yyval.spec)->segment_width);
-		  (yyval.spec)->dir = current_direction;
-		}
-#line 2872 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 82:
-#line 671 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = new object_spec(SPLINE_OBJECT);
-		  lookup_variable("lineht", & (yyval.spec)->segment_height);
-		  lookup_variable("linewid", & (yyval.spec)->segment_width);
-		  (yyval.spec)->dir = current_direction;
-		}
-#line 2883 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 83:
-#line 678 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = new object_spec(TEXT_OBJECT);
-		  (yyval.spec)->text = new text_item((yyvsp[0].lstr).str, (yyvsp[0].lstr).filename, (yyvsp[0].lstr).lineno);
-		}
-#line 2892 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 84:
-#line 683 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = new object_spec(TEXT_OBJECT);
-		  (yyval.spec)->text = new text_item(format_number(0, (yyvsp[0].x)), 0, -1);
-		}
-#line 2901 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 85:
-#line 688 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = new object_spec(TEXT_OBJECT);
-		  (yyval.spec)->text = new text_item(format_number((yyvsp[0].lstr).str, (yyvsp[-1].x)),
-					   (yyvsp[0].lstr).filename, (yyvsp[0].lstr).lineno);
-		  a_delete (yyvsp[0].lstr).str;
-		}
-#line 2912 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 86:
-#line 695 "pic.y" /* yacc.c:1646  */
-    {
-		  saved_state *p = new saved_state;
-		  (yyval.pstate) = p;
-		  p->x = current_position.x;
-		  p->y = current_position.y;
-		  p->dir = current_direction;
-		  p->tbl = current_table;
-		  p->prev = current_saved_state;
-		  current_position.x = 0.0;
-		  current_position.y = 0.0;
-		  current_table = new PTABLE(place);
-		  current_saved_state = p;
-		  olist.append(make_mark_object());
-		}
-#line 2931 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 87:
-#line 710 "pic.y" /* yacc.c:1646  */
-    {
-		  current_position.x = (yyvsp[-2].pstate)->x;
-		  current_position.y = (yyvsp[-2].pstate)->y;
-		  current_direction = (yyvsp[-2].pstate)->dir;
-		  (yyval.spec) = new object_spec(BLOCK_OBJECT);
-		  olist.wrap_up_block(& (yyval.spec)->oblist);
-		  (yyval.spec)->tbl = current_table;
-		  current_table = (yyvsp[-2].pstate)->tbl;
-		  current_saved_state = (yyvsp[-2].pstate)->prev;
-		  delete (yyvsp[-2].pstate);
-		}
-#line 2947 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 88:
-#line 722 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->height = (yyvsp[0].x);
-		  (yyval.spec)->flags |= HAS_HEIGHT;
-		}
-#line 2957 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 89:
-#line 728 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->radius = (yyvsp[0].x);
-		  (yyval.spec)->flags |= HAS_RADIUS;
-		}
-#line 2967 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 90:
-#line 734 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->width = (yyvsp[0].x);
-		  (yyval.spec)->flags |= HAS_WIDTH;
-		}
-#line 2977 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 91:
-#line 740 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->radius = (yyvsp[0].x)/2.0;
-		  (yyval.spec)->flags |= HAS_RADIUS;
-		}
-#line 2987 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 92:
-#line 746 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags |= HAS_SEGMENT;
-		  switch ((yyval.spec)->dir) {
-		  case UP_DIRECTION:
-		    (yyval.spec)->segment_pos.y += (yyvsp[0].x);
-		    break;
-		  case DOWN_DIRECTION:
-		    (yyval.spec)->segment_pos.y -= (yyvsp[0].x);
-		    break;
-		  case RIGHT_DIRECTION:
-		    (yyval.spec)->segment_pos.x += (yyvsp[0].x);
-		    break;
-		  case LEFT_DIRECTION:
-		    (yyval.spec)->segment_pos.x -= (yyvsp[0].x);
-		    break;
-		  }
-		}
-#line 3010 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 93:
-#line 765 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->dir = UP_DIRECTION;
-		  (yyval.spec)->flags |= HAS_SEGMENT;
-		  (yyval.spec)->segment_pos.y += (yyval.spec)->segment_height;
-		}
-#line 3021 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 94:
-#line 772 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->dir = UP_DIRECTION;
-		  (yyval.spec)->flags |= HAS_SEGMENT;
-		  (yyval.spec)->segment_pos.y += (yyvsp[0].x);
-		}
-#line 3032 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 95:
-#line 779 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->dir = DOWN_DIRECTION;
-		  (yyval.spec)->flags |= HAS_SEGMENT;
-		  (yyval.spec)->segment_pos.y -= (yyval.spec)->segment_height;
-		}
-#line 3043 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 96:
-#line 786 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->dir = DOWN_DIRECTION;
-		  (yyval.spec)->flags |= HAS_SEGMENT;
-		  (yyval.spec)->segment_pos.y -= (yyvsp[0].x);
-		}
-#line 3054 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 97:
-#line 793 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->dir = RIGHT_DIRECTION;
-		  (yyval.spec)->flags |= HAS_SEGMENT;
-		  (yyval.spec)->segment_pos.x += (yyval.spec)->segment_width;
-		}
-#line 3065 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 98:
-#line 800 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->dir = RIGHT_DIRECTION;
-		  (yyval.spec)->flags |= HAS_SEGMENT;
-		  (yyval.spec)->segment_pos.x += (yyvsp[0].x);
-		}
-#line 3076 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 99:
-#line 807 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->dir = LEFT_DIRECTION;
-		  (yyval.spec)->flags |= HAS_SEGMENT;
-		  (yyval.spec)->segment_pos.x -= (yyval.spec)->segment_width;
-		}
-#line 3087 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 100:
-#line 814 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->dir = LEFT_DIRECTION;
-		  (yyval.spec)->flags |= HAS_SEGMENT;
-		  (yyval.spec)->segment_pos.x -= (yyvsp[0].x);
-		}
-#line 3098 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 101:
-#line 821 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= HAS_FROM;
-		  (yyval.spec)->from.x = (yyvsp[0].pair).x;
-		  (yyval.spec)->from.y = (yyvsp[0].pair).y;
-		}
-#line 3109 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 102:
-#line 828 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  if ((yyval.spec)->flags & HAS_SEGMENT)
-		    (yyval.spec)->segment_list = new segment((yyval.spec)->segment_pos,
-						   (yyval.spec)->segment_is_absolute,
-						   (yyval.spec)->segment_list);
-		  (yyval.spec)->flags |= HAS_SEGMENT;
-		  (yyval.spec)->segment_pos.x = (yyvsp[0].pair).x;
-		  (yyval.spec)->segment_pos.y = (yyvsp[0].pair).y;
-		  (yyval.spec)->segment_is_absolute = 1;
-		  (yyval.spec)->flags |= HAS_TO;
-		  (yyval.spec)->to.x = (yyvsp[0].pair).x;
-		  (yyval.spec)->to.y = (yyvsp[0].pair).y;
-		}
-#line 3128 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 103:
-#line 843 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= HAS_AT;
-		  (yyval.spec)->at.x = (yyvsp[0].pair).x;
-		  (yyval.spec)->at.y = (yyvsp[0].pair).y;
-		  if ((yyval.spec)->type != ARC_OBJECT) {
-		    (yyval.spec)->flags |= HAS_FROM;
-		    (yyval.spec)->from.x = (yyvsp[0].pair).x;
-		    (yyval.spec)->from.y = (yyvsp[0].pair).y;
-		  }
-		}
-#line 3144 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 104:
-#line 855 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= HAS_WITH;
-		  (yyval.spec)->with = (yyvsp[0].pth);
-		}
-#line 3154 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 105:
-#line 861 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= HAS_WITH;
-		  position pos;
-		  pos.x = (yyvsp[0].pair).x;
-		  pos.y = (yyvsp[0].pair).y;
-		  (yyval.spec)->with = new path(pos);
-		}
-#line 3167 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 106:
-#line 870 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= HAS_SEGMENT;
-		  (yyval.spec)->segment_pos.x += (yyvsp[0].pair).x;
-		  (yyval.spec)->segment_pos.y += (yyvsp[0].pair).y;
-		}
-#line 3178 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 107:
-#line 877 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  if (!((yyval.spec)->flags & HAS_SEGMENT))
-		    switch ((yyval.spec)->dir) {
-		    case UP_DIRECTION:
-		      (yyval.spec)->segment_pos.y += (yyval.spec)->segment_width;
-		      break;
-		    case DOWN_DIRECTION:
-		      (yyval.spec)->segment_pos.y -= (yyval.spec)->segment_width;
-		      break;
-		    case RIGHT_DIRECTION:
-		      (yyval.spec)->segment_pos.x += (yyval.spec)->segment_width;
-		      break;
-		    case LEFT_DIRECTION:
-		      (yyval.spec)->segment_pos.x -= (yyval.spec)->segment_width;
-		      break;
-		    }
-		  (yyval.spec)->segment_list = new segment((yyval.spec)->segment_pos,
-						 (yyval.spec)->segment_is_absolute,
-						 (yyval.spec)->segment_list);
-		  (yyval.spec)->flags &= ~HAS_SEGMENT;
-		  (yyval.spec)->segment_pos.x = (yyval.spec)->segment_pos.y = 0.0;
-		  (yyval.spec)->segment_is_absolute = 0;
-		}
-#line 3207 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 108:
-#line 902 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);	// nothing
-		}
-#line 3215 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 109:
-#line 906 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags |= IS_DOTTED;
-		  lookup_variable("dashwid", & (yyval.spec)->dash_width);
-		}
-#line 3225 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 110:
-#line 912 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= IS_DOTTED;
-		  (yyval.spec)->dash_width = (yyvsp[0].x);
-		}
-#line 3235 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 111:
-#line 918 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags |= IS_DASHED;
-		  lookup_variable("dashwid", & (yyval.spec)->dash_width);
-		}
-#line 3245 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 112:
-#line 924 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= IS_DASHED;
-		  (yyval.spec)->dash_width = (yyvsp[0].x);
-		}
-#line 3255 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 113:
-#line 930 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags |= IS_DEFAULT_FILLED;
-		}
-#line 3264 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 114:
-#line 935 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= IS_FILLED;
-		  (yyval.spec)->fill = (yyvsp[0].x);
-		}
-#line 3274 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 115:
-#line 941 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= IS_XSLANTED;
-		  (yyval.spec)->xslanted = (yyvsp[0].x);
-		}
-#line 3284 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 116:
-#line 947 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= IS_YSLANTED;
-		  (yyval.spec)->yslanted = (yyvsp[0].x);
-		}
-#line 3294 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 117:
-#line 953 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= (IS_SHADED | IS_FILLED);
-		  (yyval.spec)->shaded = new char[strlen((yyvsp[0].lstr).str)+1];
-		  strcpy((yyval.spec)->shaded, (yyvsp[0].lstr).str);
-		}
-#line 3305 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 118:
-#line 960 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= (IS_SHADED | IS_OUTLINED | IS_FILLED);
-		  (yyval.spec)->shaded = new char[strlen((yyvsp[0].lstr).str)+1];
-		  strcpy((yyval.spec)->shaded, (yyvsp[0].lstr).str);
-		  (yyval.spec)->outlined = new char[strlen((yyvsp[0].lstr).str)+1];
-		  strcpy((yyval.spec)->outlined, (yyvsp[0].lstr).str);
-		}
-#line 3318 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 119:
-#line 969 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= IS_OUTLINED;
-		  (yyval.spec)->outlined = new char[strlen((yyvsp[0].lstr).str)+1];
-		  strcpy((yyval.spec)->outlined, (yyvsp[0].lstr).str);
-		}
-#line 3329 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 120:
-#line 976 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  // line chop chop means line chop 0 chop 0
-		  if ((yyval.spec)->flags & IS_DEFAULT_CHOPPED) {
-		    (yyval.spec)->flags |= IS_CHOPPED;
-		    (yyval.spec)->flags &= ~IS_DEFAULT_CHOPPED;
-		    (yyval.spec)->start_chop = (yyval.spec)->end_chop = 0.0;
-		  }
-		  else if ((yyval.spec)->flags & IS_CHOPPED) {
-		    (yyval.spec)->end_chop = 0.0;
-		  }
-		  else {
-		    (yyval.spec)->flags |= IS_DEFAULT_CHOPPED;
-		  }
-		}
-#line 3349 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 121:
-#line 992 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  if ((yyval.spec)->flags & IS_DEFAULT_CHOPPED) {
-		    (yyval.spec)->flags |= IS_CHOPPED;
-		    (yyval.spec)->flags &= ~IS_DEFAULT_CHOPPED;
-		    (yyval.spec)->start_chop = 0.0;
-		    (yyval.spec)->end_chop = (yyvsp[0].x);
-		  }
-		  else if ((yyval.spec)->flags & IS_CHOPPED) {
-		    (yyval.spec)->end_chop = (yyvsp[0].x);
-		  }
-		  else {
-		    (yyval.spec)->start_chop = (yyval.spec)->end_chop = (yyvsp[0].x);
-		    (yyval.spec)->flags |= IS_CHOPPED;
-		  }
-		}
-#line 3370 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 122:
-#line 1009 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags |= IS_SAME;
-		}
-#line 3379 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 123:
-#line 1014 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags |= IS_INVISIBLE;
-		}
-#line 3388 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 124:
-#line 1019 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags |= HAS_LEFT_ARROW_HEAD;
-		}
-#line 3397 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 125:
-#line 1024 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags |= HAS_RIGHT_ARROW_HEAD;
-		}
-#line 3406 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 126:
-#line 1029 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags |= (HAS_LEFT_ARROW_HEAD|HAS_RIGHT_ARROW_HEAD);
-		}
-#line 3415 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 127:
-#line 1034 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags |= IS_CLOCKWISE;
-		}
-#line 3424 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 128:
-#line 1039 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags &= ~IS_CLOCKWISE;
-		}
-#line 3433 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 129:
-#line 1044 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  text_item **p;
-		  for (p = & (yyval.spec)->text; *p; p = &(*p)->next)
-		    ;
-		  *p = new text_item((yyvsp[0].lstr).str, (yyvsp[0].lstr).filename, (yyvsp[0].lstr).lineno);
-		}
-#line 3445 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 130:
-#line 1052 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  if ((yyval.spec)->text) {
-		    text_item *p;
-		    for (p = (yyval.spec)->text; p->next; p = p->next)
-		      ;
-		    p->adj.h = LEFT_ADJUST;
-		  }
-		}
-#line 3459 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 131:
-#line 1062 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  if ((yyval.spec)->text) {
-		    text_item *p;
-		    for (p = (yyval.spec)->text; p->next; p = p->next)
-		      ;
-		    p->adj.h = RIGHT_ADJUST;
-		  }
-		}
-#line 3473 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 132:
-#line 1072 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  if ((yyval.spec)->text) {
-		    text_item *p;
-		    for (p = (yyval.spec)->text; p->next; p = p->next)
-		      ;
-		    p->adj.v = ABOVE_ADJUST;
-		  }
-		}
-#line 3487 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 133:
-#line 1082 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  if ((yyval.spec)->text) {
-		    text_item *p;
-		    for (p = (yyval.spec)->text; p->next; p = p->next)
-		      ;
-		    p->adj.v = BELOW_ADJUST;
-		  }
-		}
-#line 3501 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 134:
-#line 1092 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-2].spec);
-		  (yyval.spec)->flags |= HAS_THICKNESS;
-		  (yyval.spec)->thickness = (yyvsp[0].x);
-		}
-#line 3511 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 135:
-#line 1098 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.spec) = (yyvsp[-1].spec);
-		  (yyval.spec)->flags |= IS_ALIGNED;
-		}
-#line 3520 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 136:
-#line 1106 "pic.y" /* yacc.c:1646  */
-    { (yyval.lstr) = (yyvsp[0].lstr); }
-#line 3526 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 137:
-#line 1108 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.lstr).filename = (yyvsp[-2].lstr).filename;
-		  (yyval.lstr).lineno = (yyvsp[-2].lstr).lineno;
-		  (yyval.lstr).str = do_sprintf((yyvsp[-2].lstr).str, (yyvsp[-1].dv).v, (yyvsp[-1].dv).nv);
-		  a_delete (yyvsp[-1].dv).v;
-		  a_delete (yyvsp[-2].lstr).str;
-		}
-#line 3538 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 138:
-#line 1119 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.dv).v = 0;
-		  (yyval.dv).nv = 0;
-		  (yyval.dv).maxv = 0;
-		}
-#line 3548 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 139:
-#line 1125 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.dv) = (yyvsp[-2].dv);
-		  if ((yyval.dv).nv >= (yyval.dv).maxv) {
-		    if ((yyval.dv).nv == 0) {
-		      (yyval.dv).v = new double[4];
-		      (yyval.dv).maxv = 4;
-		    }
-		    else {
-		      double *oldv = (yyval.dv).v;
-		      (yyval.dv).maxv *= 2;
-#if 0
-		      (yyval.dv).v = new double[(yyval.dv).maxv];
-		      memcpy((yyval.dv).v, oldv, (yyval.dv).nv*sizeof(double));
-#else
-		      // workaround for bug in Compaq C++ V6.5-033
-		      // for Compaq Tru64 UNIX V5.1A (Rev. 1885)
-		      double *foo = new double[(yyval.dv).maxv];
-		      memcpy(foo, oldv, (yyval.dv).nv*sizeof(double));
-		      (yyval.dv).v = foo;
-#endif
-		      a_delete oldv;
-		    }
-		  }
-		  (yyval.dv).v[(yyval.dv).nv] = (yyvsp[0].x);
-		  (yyval.dv).nv += 1;
-		}
-#line 3579 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 140:
-#line 1155 "pic.y" /* yacc.c:1646  */
-    { (yyval.pair) = (yyvsp[0].pair); }
-#line 3585 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 141:
-#line 1157 "pic.y" /* yacc.c:1646  */
-    {
-		  position pos = (yyvsp[0].pl);
-		  (yyval.pair).x = pos.x;
-		  (yyval.pair).y = pos.y;
-		}
-#line 3595 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 142:
-#line 1163 "pic.y" /* yacc.c:1646  */
-    {
-		  position pos = (yyvsp[-1].pl);
-		  (yyval.pair).x = pos.x;
-		  (yyval.pair).y = pos.y;
-		}
-#line 3605 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 143:
-#line 1172 "pic.y" /* yacc.c:1646  */
-    { (yyval.pair) = (yyvsp[0].pair); }
-#line 3611 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 144:
-#line 1174 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pair).x = (yyvsp[-2].pair).x + (yyvsp[0].pair).x;
-		  (yyval.pair).y = (yyvsp[-2].pair).y + (yyvsp[0].pair).y;
-		}
-#line 3620 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 145:
-#line 1179 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pair).x = (yyvsp[-3].pair).x + (yyvsp[-1].pair).x;
-		  (yyval.pair).y = (yyvsp[-3].pair).y + (yyvsp[-1].pair).y;
-		}
-#line 3629 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 146:
-#line 1184 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pair).x = (yyvsp[-2].pair).x - (yyvsp[0].pair).x;
-		  (yyval.pair).y = (yyvsp[-2].pair).y - (yyvsp[0].pair).y;
-		}
-#line 3638 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 147:
-#line 1189 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pair).x = (yyvsp[-3].pair).x - (yyvsp[-1].pair).x;
-		  (yyval.pair).y = (yyvsp[-3].pair).y - (yyvsp[-1].pair).y;
-		}
-#line 3647 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 148:
-#line 1194 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pair).x = (yyvsp[-3].pair).x;
-		  (yyval.pair).y = (yyvsp[-1].pair).y;
-		}
-#line 3656 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 149:
-#line 1199 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pair).x = (1.0 - (yyvsp[-4].x))*(yyvsp[-2].pair).x + (yyvsp[-4].x)*(yyvsp[0].pair).x;
-		  (yyval.pair).y = (1.0 - (yyvsp[-4].x))*(yyvsp[-2].pair).y + (yyvsp[-4].x)*(yyvsp[0].pair).y;
-		}
-#line 3665 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 150:
-#line 1204 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pair).x = (1.0 - (yyvsp[-5].x))*(yyvsp[-3].pair).x + (yyvsp[-5].x)*(yyvsp[-1].pair).x;
-		  (yyval.pair).y = (1.0 - (yyvsp[-5].x))*(yyvsp[-3].pair).y + (yyvsp[-5].x)*(yyvsp[-1].pair).y;
-		}
-#line 3674 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 151:
-#line 1210 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pair).x = (1.0 - (yyvsp[-5].x))*(yyvsp[-3].pair).x + (yyvsp[-5].x)*(yyvsp[-1].pair).x;
-		  (yyval.pair).y = (1.0 - (yyvsp[-5].x))*(yyvsp[-3].pair).y + (yyvsp[-5].x)*(yyvsp[-1].pair).y;
-		}
-#line 3683 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 152:
-#line 1215 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pair).x = (1.0 - (yyvsp[-6].x))*(yyvsp[-4].pair).x + (yyvsp[-6].x)*(yyvsp[-2].pair).x;
-		  (yyval.pair).y = (1.0 - (yyvsp[-6].x))*(yyvsp[-4].pair).y + (yyvsp[-6].x)*(yyvsp[-2].pair).y;
-		}
-#line 3692 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 155:
-#line 1228 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pair).x = (yyvsp[-2].x);
-		  (yyval.pair).y = (yyvsp[0].x);
-		}
-#line 3701 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 156:
-#line 1233 "pic.y" /* yacc.c:1646  */
-    { (yyval.pair) = (yyvsp[-1].pair); }
-#line 3707 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 157:
-#line 1239 "pic.y" /* yacc.c:1646  */
-    { (yyval.pl) = (yyvsp[0].pl); }
-#line 3713 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 158:
-#line 1241 "pic.y" /* yacc.c:1646  */
-    {
-		  path pth((yyvsp[0].crn));
-		  if (!pth.follow((yyvsp[-1].pl), & (yyval.pl)))
-		    YYABORT;
-		}
-#line 3723 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 159:
-#line 1247 "pic.y" /* yacc.c:1646  */
-    {
-		  path pth((yyvsp[-1].crn));
-		  if (!pth.follow((yyvsp[0].pl), & (yyval.pl)))
-		    YYABORT;
-		}
-#line 3733 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 160:
-#line 1253 "pic.y" /* yacc.c:1646  */
-    {
-		  path pth((yyvsp[-2].crn));
-		  if (!pth.follow((yyvsp[0].pl), & (yyval.pl)))
-		    YYABORT;
-		}
-#line 3743 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 161:
-#line 1259 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pl).x = current_position.x;
-		  (yyval.pl).y = current_position.y;
-		  (yyval.pl).obj = 0;
-		}
-#line 3753 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 162:
-#line 1268 "pic.y" /* yacc.c:1646  */
-    {
-		  place *p = lookup_label((yyvsp[0].str));
-		  if (!p) {
-		    lex_error("there is no place `%1'", (yyvsp[0].str));
-		    YYABORT;
-		  }
-		  (yyval.pl) = *p;
-		  a_delete (yyvsp[0].str);
-		}
-#line 3767 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 163:
-#line 1278 "pic.y" /* yacc.c:1646  */
-    { (yyval.pl).obj = (yyvsp[0].obj); }
-#line 3773 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 164:
-#line 1280 "pic.y" /* yacc.c:1646  */
-    {
-		  path pth((yyvsp[0].str));
-		  if (!pth.follow((yyvsp[-2].pl), & (yyval.pl)))
-		    YYABORT;
-		}
-#line 3783 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 165:
-#line 1289 "pic.y" /* yacc.c:1646  */
-    { (yyval.n) = (yyvsp[0].n); }
-#line 3789 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 166:
-#line 1291 "pic.y" /* yacc.c:1646  */
-    {
-		  // XXX Check for overflow (and non-integers?).
-		  (yyval.n) = (int)(yyvsp[-1].x);
-		}
-#line 3798 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 167:
-#line 1299 "pic.y" /* yacc.c:1646  */
-    { (yyval.n) = 1; }
-#line 3804 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 168:
-#line 1301 "pic.y" /* yacc.c:1646  */
-    { (yyval.n) = (yyvsp[-1].n); }
-#line 3810 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 169:
-#line 1306 "pic.y" /* yacc.c:1646  */
-    {
-		  int count = 0;
-		  object *p;
-		  for (p = olist.head; p != 0; p = p->next)
-		    if (p->type() == (yyvsp[0].obtype) && ++count == (yyvsp[-1].n)) {
-		      (yyval.obj) = p;
-		      break;
-		    }
-		  if (p == 0) {
-		    lex_error("there is no %1%2 %3", (yyvsp[-1].n), ordinal_postfix((yyvsp[-1].n)),
-			      object_type_name((yyvsp[0].obtype)));
-		    YYABORT;
-		  }
-		}
-#line 3829 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 170:
-#line 1321 "pic.y" /* yacc.c:1646  */
-    {
-		  int count = 0;
-		  object *p;
-		  for (p = olist.tail; p != 0; p = p->prev)
-		    if (p->type() == (yyvsp[0].obtype) && ++count == (yyvsp[-1].n)) {
-		      (yyval.obj) = p;
-		      break;
-		    }
-		  if (p == 0) {
-		    lex_error("there is no %1%2 last %3", (yyvsp[-1].n),
-			      ordinal_postfix((yyvsp[-1].n)), object_type_name((yyvsp[0].obtype)));
-		    YYABORT;
-		  }
-		}
-#line 3848 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 171:
-#line 1339 "pic.y" /* yacc.c:1646  */
-    { (yyval.obtype) = BOX_OBJECT; }
-#line 3854 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 172:
-#line 1341 "pic.y" /* yacc.c:1646  */
-    { (yyval.obtype) = CIRCLE_OBJECT; }
-#line 3860 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 173:
-#line 1343 "pic.y" /* yacc.c:1646  */
-    { (yyval.obtype) = ELLIPSE_OBJECT; }
-#line 3866 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 174:
-#line 1345 "pic.y" /* yacc.c:1646  */
-    { (yyval.obtype) = ARC_OBJECT; }
-#line 3872 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 175:
-#line 1347 "pic.y" /* yacc.c:1646  */
-    { (yyval.obtype) = LINE_OBJECT; }
-#line 3878 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 176:
-#line 1349 "pic.y" /* yacc.c:1646  */
-    { (yyval.obtype) = ARROW_OBJECT; }
-#line 3884 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 177:
-#line 1351 "pic.y" /* yacc.c:1646  */
-    { (yyval.obtype) = SPLINE_OBJECT; }
-#line 3890 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 178:
-#line 1353 "pic.y" /* yacc.c:1646  */
-    { (yyval.obtype) = BLOCK_OBJECT; }
-#line 3896 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 179:
-#line 1355 "pic.y" /* yacc.c:1646  */
-    { (yyval.obtype) = TEXT_OBJECT; }
-#line 3902 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 180:
-#line 1360 "pic.y" /* yacc.c:1646  */
-    { (yyval.pth) = new path((yyvsp[0].str)); }
-#line 3908 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 181:
-#line 1362 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pth) = (yyvsp[-2].pth);
-		  (yyval.pth)->append((yyvsp[0].str));
-		}
-#line 3917 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 182:
-#line 1370 "pic.y" /* yacc.c:1646  */
-    { (yyval.pth) = new path((yyvsp[0].crn)); }
-#line 3923 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 183:
-#line 1374 "pic.y" /* yacc.c:1646  */
-    { (yyval.pth) = (yyvsp[0].pth); }
-#line 3929 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 184:
-#line 1376 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pth) = (yyvsp[-1].pth);
-		  (yyval.pth)->append((yyvsp[0].crn));
-		}
-#line 3938 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 185:
-#line 1384 "pic.y" /* yacc.c:1646  */
-    { (yyval.pth) = (yyvsp[0].pth); }
-#line 3944 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 186:
-#line 1386 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.pth) = (yyvsp[-3].pth);
-		  (yyval.pth)->set_ypath((yyvsp[-1].pth));
-		}
-#line 3953 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 187:
-#line 1392 "pic.y" /* yacc.c:1646  */
-    {
-		  lex_warning("`%1%2 last %3' in `with' argument ignored",
-			      (yyvsp[-3].n), ordinal_postfix((yyvsp[-3].n)), object_type_name((yyvsp[-1].obtype)));
-		  (yyval.pth) = (yyvsp[0].pth);
-		}
-#line 3963 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 188:
-#line 1398 "pic.y" /* yacc.c:1646  */
-    {
-		  lex_warning("`last %1' in `with' argument ignored",
-			      object_type_name((yyvsp[-1].obtype)));
-		  (yyval.pth) = (yyvsp[0].pth);
-		}
-#line 3973 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 189:
-#line 1404 "pic.y" /* yacc.c:1646  */
-    {
-		  lex_warning("`%1%2 %3' in `with' argument ignored",
-			      (yyvsp[-2].n), ordinal_postfix((yyvsp[-2].n)), object_type_name((yyvsp[-1].obtype)));
-		  (yyval.pth) = (yyvsp[0].pth);
-		}
-#line 3983 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 190:
-#line 1410 "pic.y" /* yacc.c:1646  */
-    {
-		  lex_warning("initial `%1' in `with' argument ignored", (yyvsp[-1].str));
-		  a_delete (yyvsp[-1].str);
-		  (yyval.pth) = (yyvsp[0].pth);
-		}
-#line 3993 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 191:
-#line 1419 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::north; }
-#line 3999 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 192:
-#line 1421 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::east; }
-#line 4005 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 193:
-#line 1423 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::west; }
-#line 4011 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 194:
-#line 1425 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::south; }
-#line 4017 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 195:
-#line 1427 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::north_east; }
-#line 4023 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 196:
-#line 1429 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object:: south_east; }
-#line 4029 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 197:
-#line 1431 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::north_west; }
-#line 4035 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 198:
-#line 1433 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::south_west; }
-#line 4041 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 199:
-#line 1435 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::center; }
-#line 4047 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 200:
-#line 1437 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::start; }
-#line 4053 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 201:
-#line 1439 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::end; }
-#line 4059 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 202:
-#line 1441 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::north; }
-#line 4065 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 203:
-#line 1443 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::south; }
-#line 4071 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 204:
-#line 1445 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::west; }
-#line 4077 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 205:
-#line 1447 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::east; }
-#line 4083 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 206:
-#line 1449 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::north_west; }
-#line 4089 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 207:
-#line 1451 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::south_west; }
-#line 4095 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 208:
-#line 1453 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::north_east; }
-#line 4101 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 209:
-#line 1455 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::south_east; }
-#line 4107 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 210:
-#line 1457 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::west; }
-#line 4113 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 211:
-#line 1459 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::east; }
-#line 4119 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 212:
-#line 1461 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::north_west; }
-#line 4125 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 213:
-#line 1463 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::south_west; }
-#line 4131 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 214:
-#line 1465 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::north_east; }
-#line 4137 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 215:
-#line 1467 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::south_east; }
-#line 4143 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 216:
-#line 1469 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::north; }
-#line 4149 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 217:
-#line 1471 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::south; }
-#line 4155 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 218:
-#line 1473 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::east; }
-#line 4161 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 219:
-#line 1475 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::west; }
-#line 4167 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 220:
-#line 1477 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::center; }
-#line 4173 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 221:
-#line 1479 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::start; }
-#line 4179 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 222:
-#line 1481 "pic.y" /* yacc.c:1646  */
-    { (yyval.crn) = &object::end; }
-#line 4185 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 223:
-#line 1486 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[0].x); }
-#line 4191 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 224:
-#line 1488 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[0].x); }
-#line 4197 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 225:
-#line 1493 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) < (yyvsp[0].x)); }
-#line 4203 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 226:
-#line 1498 "pic.y" /* yacc.c:1646  */
-    {
-		  if (!lookup_variable((yyvsp[0].str), & (yyval.x))) {
-		    lex_error("there is no variable `%1'", (yyvsp[0].str));
-		    YYABORT;
-		  }
-		  a_delete (yyvsp[0].str);
-		}
-#line 4215 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 227:
-#line 1506 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[0].x); }
-#line 4221 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 228:
-#line 1508 "pic.y" /* yacc.c:1646  */
-    {
-		  if ((yyvsp[-1].pl).obj != 0)
-		    (yyval.x) = (yyvsp[-1].pl).obj->origin().x;
-		  else
-		    (yyval.x) = (yyvsp[-1].pl).x;
-		}
-#line 4232 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 229:
-#line 1515 "pic.y" /* yacc.c:1646  */
-    {
-		  if ((yyvsp[-1].pl).obj != 0)
-		    (yyval.x) = (yyvsp[-1].pl).obj->origin().y;
-		  else
-		    (yyval.x) = (yyvsp[-1].pl).y;
-		}
-#line 4243 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 230:
-#line 1522 "pic.y" /* yacc.c:1646  */
-    {
-		  if ((yyvsp[-1].pl).obj != 0)
-		    (yyval.x) = (yyvsp[-1].pl).obj->height();
-		  else
-		    (yyval.x) = 0.0;
-		}
-#line 4254 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 231:
-#line 1529 "pic.y" /* yacc.c:1646  */
-    {
-		  if ((yyvsp[-1].pl).obj != 0)
-		    (yyval.x) = (yyvsp[-1].pl).obj->width();
-		  else
-		    (yyval.x) = 0.0;
-		}
-#line 4265 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 232:
-#line 1536 "pic.y" /* yacc.c:1646  */
-    {
-		  if ((yyvsp[-1].pl).obj != 0)
-		    (yyval.x) = (yyvsp[-1].pl).obj->radius();
-		  else
-		    (yyval.x) = 0.0;
-		}
-#line 4276 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 233:
-#line 1543 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[-2].x) + (yyvsp[0].x); }
-#line 4282 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 234:
-#line 1545 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[-2].x) - (yyvsp[0].x); }
-#line 4288 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 235:
-#line 1547 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[-2].x) * (yyvsp[0].x); }
-#line 4294 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 236:
-#line 1549 "pic.y" /* yacc.c:1646  */
-    {
-		  if ((yyvsp[0].x) == 0.0) {
-		    lex_error("division by zero");
-		    YYABORT;
-		  }
-		  (yyval.x) = (yyvsp[-2].x)/(yyvsp[0].x);
-		}
-#line 4306 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 237:
-#line 1557 "pic.y" /* yacc.c:1646  */
-    {
-		  if ((yyvsp[0].x) == 0.0) {
-		    lex_error("modulus by zero");
-		    YYABORT;
-		  }
-		  (yyval.x) = fmod((yyvsp[-2].x), (yyvsp[0].x));
-		}
-#line 4318 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 238:
-#line 1565 "pic.y" /* yacc.c:1646  */
-    {
-		  errno = 0;
-		  (yyval.x) = pow((yyvsp[-2].x), (yyvsp[0].x));
-		  if (errno == EDOM) {
-		    lex_error("arguments to `^' operator out of domain");
-		    YYABORT;
-		  }
-		  if (errno == ERANGE) {
-		    lex_error("result of `^' operator out of range");
-		    YYABORT;
-		  }
-		}
-#line 4335 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 239:
-#line 1578 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = -(yyvsp[0].x); }
-#line 4341 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 240:
-#line 1580 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[-1].x); }
-#line 4347 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 241:
-#line 1582 "pic.y" /* yacc.c:1646  */
-    {
-		  errno = 0;
-		  (yyval.x) = sin((yyvsp[-1].x));
-		  if (errno == ERANGE) {
-		    lex_error("sin result out of range");
-		    YYABORT;
-		  }
-		}
-#line 4360 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 242:
-#line 1591 "pic.y" /* yacc.c:1646  */
-    {
-		  errno = 0;
-		  (yyval.x) = cos((yyvsp[-1].x));
-		  if (errno == ERANGE) {
-		    lex_error("cos result out of range");
-		    YYABORT;
-		  }
-		}
-#line 4373 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 243:
-#line 1600 "pic.y" /* yacc.c:1646  */
-    {
-		  errno = 0;
-		  (yyval.x) = atan2((yyvsp[-3].x), (yyvsp[-1].x));
-		  if (errno == EDOM) {
-		    lex_error("atan2 argument out of domain");
-		    YYABORT;
-		  }
-		  if (errno == ERANGE) {
-		    lex_error("atan2 result out of range");
-		    YYABORT;
-		  }
-		}
-#line 4390 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 244:
-#line 1613 "pic.y" /* yacc.c:1646  */
-    {
-		  errno = 0;
-		  (yyval.x) = log10((yyvsp[-1].x));
-		  if (errno == ERANGE) {
-		    lex_error("log result out of range");
-		    YYABORT;
-		  }
-		}
-#line 4403 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 245:
-#line 1622 "pic.y" /* yacc.c:1646  */
-    {
-		  errno = 0;
-		  (yyval.x) = pow(10.0, (yyvsp[-1].x));
-		  if (errno == ERANGE) {
-		    lex_error("exp result out of range");
-		    YYABORT;
-		  }
-		}
-#line 4416 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 246:
-#line 1631 "pic.y" /* yacc.c:1646  */
-    {
-		  errno = 0;
-		  (yyval.x) = sqrt((yyvsp[-1].x));
-		  if (errno == EDOM) {
-		    lex_error("sqrt argument out of domain");
-		    YYABORT;
-		  }
-		}
-#line 4429 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 247:
-#line 1640 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[-3].x) > (yyvsp[-1].x) ? (yyvsp[-3].x) : (yyvsp[-1].x); }
-#line 4435 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 248:
-#line 1642 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[-3].x) < (yyvsp[-1].x) ? (yyvsp[-3].x) : (yyvsp[-1].x); }
-#line 4441 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 249:
-#line 1644 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = (yyvsp[-1].x) < 0 ? -floor(-(yyvsp[-1].x)) : floor((yyvsp[-1].x)); }
-#line 4447 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 250:
-#line 1646 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = 1.0 + floor(((rand()&0x7fff)/double(0x7fff))*(yyvsp[-1].x)); }
-#line 4453 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 251:
-#line 1648 "pic.y" /* yacc.c:1646  */
-    {
-		  /* return a random number in the range [0,1) */
-		  /* portable, but not very random */
-		  (yyval.x) = (rand() & 0x7fff) / double(0x8000);
-		}
-#line 4463 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 252:
-#line 1654 "pic.y" /* yacc.c:1646  */
-    {
-		  (yyval.x) = 0;
-		  srand((unsigned int)(yyvsp[-1].x));
-		}
-#line 4472 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 253:
-#line 1659 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) <= (yyvsp[0].x)); }
-#line 4478 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 254:
-#line 1661 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) > (yyvsp[0].x)); }
-#line 4484 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 255:
-#line 1663 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) >= (yyvsp[0].x)); }
-#line 4490 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 256:
-#line 1665 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) == (yyvsp[0].x)); }
-#line 4496 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 257:
-#line 1667 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) != (yyvsp[0].x)); }
-#line 4502 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 258:
-#line 1669 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) != 0.0 && (yyvsp[0].x) != 0.0); }
-#line 4508 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 259:
-#line 1671 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[-2].x) != 0.0 || (yyvsp[0].x) != 0.0); }
-#line 4514 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-  case 260:
-#line 1673 "pic.y" /* yacc.c:1646  */
-    { (yyval.x) = ((yyvsp[0].x) == 0.0); }
-#line 4520 "pic.cpp" /* yacc.c:1646  */
-    break;
-
-
-#line 4524 "pic.cpp" /* yacc.c:1646  */
-      default: break;
-    }
-  /* User semantic actions sometimes alter yychar, and that requires
-     that yytoken be updated with the new translation.  We take the
-     approach of translating immediately before every use of yytoken.
-     One alternative is translating here after every semantic action,
-     but that translation would be missed if the semantic action invokes
-     YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
-     if it invokes YYBACKUP.  In the case of YYABORT or YYACCEPT, an
-     incorrect destructor might then be invoked immediately.  In the
-     case of YYERROR or YYBACKUP, subsequent parser actions might lead
-     to an incorrect destructor call or verbose syntax error message
-     before the lookahead is translated.  */
-  YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
-
-  YYPOPSTACK (yylen);
-  yylen = 0;
-  YY_STACK_PRINT (yyss, yyssp);
-
-  *++yyvsp = yyval;
-
-  /* Now 'shift' the result of the reduction.  Determine what state
-     that goes to, based on the state we popped back to and the rule
-     number reduced by.  */
-
-  yyn = yyr1[yyn];
-
-  yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
-  if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
-    yystate = yytable[yystate];
-  else
-    yystate = yydefgoto[yyn - YYNTOKENS];
-
-  goto yynewstate;
-
-
-/*--------------------------------------.
-| yyerrlab -- here on detecting error.  |
-`--------------------------------------*/
-yyerrlab:
-  /* Make sure we have latest lookahead translation.  See comments at
-     user semantic actions for why this is necessary.  */
-  yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
-
-  /* If not already recovering from an error, report this error.  */
-  if (!yyerrstatus)
-    {
-      ++yynerrs;
-#if ! YYERROR_VERBOSE
-      yyerror (YY_("syntax error"));
-#else
-# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \
-                                        yyssp, yytoken)
-      {
-        char const *yymsgp = YY_("syntax error");
-        int yysyntax_error_status;
-        yysyntax_error_status = YYSYNTAX_ERROR;
-        if (yysyntax_error_status == 0)
-          yymsgp = yymsg;
-        else if (yysyntax_error_status == 1)
-          {
-            if (yymsg != yymsgbuf)
-              YYSTACK_FREE (yymsg);
-            yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
-            if (!yymsg)
-              {
-                yymsg = yymsgbuf;
-                yymsg_alloc = sizeof yymsgbuf;
-                yysyntax_error_status = 2;
-              }
-            else
-              {
-                yysyntax_error_status = YYSYNTAX_ERROR;
-                yymsgp = yymsg;
-              }
-          }
-        yyerror (yymsgp);
-        if (yysyntax_error_status == 2)
-          goto yyexhaustedlab;
-      }
-# undef YYSYNTAX_ERROR
-#endif
-    }
-
-
-
-  if (yyerrstatus == 3)
-    {
-      /* If just tried and failed to reuse lookahead token after an
-         error, discard it.  */
-
-      if (yychar <= YYEOF)
-        {
-          /* Return failure if at end of input.  */
-          if (yychar == YYEOF)
-            YYABORT;
-        }
-      else
-        {
-          yydestruct ("Error: discarding",
-                      yytoken, &yylval);
-          yychar = YYEMPTY;
-        }
-    }
-
-  /* Else will try to reuse lookahead token after shifting the error
-     token.  */
-  goto yyerrlab1;
-
-
-/*---------------------------------------------------.
-| yyerrorlab -- error raised explicitly by YYERROR.  |
-`---------------------------------------------------*/
-yyerrorlab:
-
-  /* Pacify compilers like GCC when the user code never invokes
-     YYERROR and the label yyerrorlab therefore never appears in user
-     code.  */
-  if (/*CONSTCOND*/ 0)
-     goto yyerrorlab;
-
-  /* Do not reclaim the symbols of the rule whose action triggered
-     this YYERROR.  */
-  YYPOPSTACK (yylen);
-  yylen = 0;
-  YY_STACK_PRINT (yyss, yyssp);
-  yystate = *yyssp;
-  goto yyerrlab1;
-
-
-/*-------------------------------------------------------------.
-| yyerrlab1 -- common code for both syntax error and YYERROR.  |
-`-------------------------------------------------------------*/
-yyerrlab1:
-  yyerrstatus = 3;      /* Each real token shifted decrements this.  */
-
-  for (;;)
-    {
-      yyn = yypact[yystate];
-      if (!yypact_value_is_default (yyn))
-        {
-          yyn += YYTERROR;
-          if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
-            {
-              yyn = yytable[yyn];
-              if (0 < yyn)
-                break;
-            }
-        }
-
-      /* Pop the current state because it cannot handle the error token.  */
-      if (yyssp == yyss)
-        YYABORT;
-
-
-      yydestruct ("Error: popping",
-                  yystos[yystate], yyvsp);
-      YYPOPSTACK (1);
-      yystate = *yyssp;
-      YY_STACK_PRINT (yyss, yyssp);
-    }
-
-  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-  *++yyvsp = yylval;
-  YY_IGNORE_MAYBE_UNINITIALIZED_END
-
-
-  /* Shift the error token.  */
-  YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
-
-  yystate = yyn;
-  goto yynewstate;
-
-
-/*-------------------------------------.
-| yyacceptlab -- YYACCEPT comes here.  |
-`-------------------------------------*/
-yyacceptlab:
-  yyresult = 0;
-  goto yyreturn;
-
-/*-----------------------------------.
-| yyabortlab -- YYABORT comes here.  |
-`-----------------------------------*/
-yyabortlab:
-  yyresult = 1;
-  goto yyreturn;
-
-#if !defined yyoverflow || YYERROR_VERBOSE
-/*-------------------------------------------------.
-| yyexhaustedlab -- memory exhaustion comes here.  |
-`-------------------------------------------------*/
-yyexhaustedlab:
-  yyerror (YY_("memory exhausted"));
-  yyresult = 2;
-  /* Fall through.  */
-#endif
-
-yyreturn:
-  if (yychar != YYEMPTY)
-    {
-      /* Make sure we have latest lookahead translation.  See comments at
-         user semantic actions for why this is necessary.  */
-      yytoken = YYTRANSLATE (yychar);
-      yydestruct ("Cleanup: discarding lookahead",
-                  yytoken, &yylval);
-    }
-  /* Do not reclaim the symbols of the rule whose action triggered
-     this YYABORT or YYACCEPT.  */
-  YYPOPSTACK (yylen);
-  YY_STACK_PRINT (yyss, yyssp);
-  while (yyssp != yyss)
-    {
-      yydestruct ("Cleanup: popping",
-                  yystos[*yyssp], yyvsp);
-      YYPOPSTACK (1);
-    }
-#ifndef yyoverflow
-  if (yyss != yyssa)
-    YYSTACK_FREE (yyss);
-#endif
-#if YYERROR_VERBOSE
-  if (yymsg != yymsgbuf)
-    YYSTACK_FREE (yymsg);
-#endif
-  return yyresult;
-}
-#line 1677 "pic.y" /* yacc.c:1906  */
-
-
-/* bison defines const to be empty unless __STDC__ is defined, which it
-isn't under cfront */
-
-#ifdef const
-#undef const
-#endif
-
-static struct {
-  const char *name;
-  double val;
-  int scaled;		     // non-zero if val should be multiplied by scale
-} defaults_table[] = {
-  { "arcrad", .25, 1 },
-  { "arrowht", .1, 1 },
-  { "arrowwid", .05, 1 },
-  { "circlerad", .25, 1 },
-  { "boxht", .5, 1 },
-  { "boxwid", .75, 1 },
-  { "boxrad", 0.0, 1 },
-  { "dashwid", .05, 1 },
-  { "ellipseht", .5, 1 },
-  { "ellipsewid", .75, 1 },
-  { "moveht", .5, 1 },
-  { "movewid", .5, 1 },
-  { "lineht", .5, 1 },
-  { "linewid", .5, 1 },
-  { "textht", 0.0, 1 },
-  { "textwid", 0.0, 1 },
-  { "scale", 1.0, 0 },
-  { "linethick", -1.0, 0 },		// in points
-  { "fillval", .5, 0 },
-  { "arrowhead", 1.0, 0 },
-  { "maxpswid", 8.5, 0 },
-  { "maxpsht", 11.0, 0 },
-};
-
-place *lookup_label(const char *label)
-{
-  saved_state *state = current_saved_state;
-  PTABLE(place) *tbl = current_table;
-  for (;;) {
-    place *pl = tbl->lookup(label);
-    if (pl)
-      return pl;
-    if (!state)
-      return 0;
-    tbl = state->tbl;
-    state = state->prev;
-  }
-}
-
-void define_label(const char *label, const place *pl)
-{
-  place *p = new place[1];
-  *p = *pl;
-  current_table->define(label, p);
-}
-
-int lookup_variable(const char *name, double *val)
-{
-  place *pl = lookup_label(name);
-  if (pl) {
-    *val = pl->x;
-    return 1;
-  }
-  return 0;
-}
-
-void define_variable(const char *name, double val)
-{
-  place *p = new place[1];
-  p->obj = 0;
-  p->x = val;
-  p->y = 0.0;
-  current_table->define(name, p);
-  if (strcmp(name, "scale") == 0) {
-    // When the scale changes, reset all scaled pre-defined variables to
-    // their default values.
-    for (unsigned int i = 0;
-	 i < sizeof(defaults_table)/sizeof(defaults_table[0]); i++) 
-      if (defaults_table[i].scaled)
-	define_variable(defaults_table[i].name, val*defaults_table[i].val);
-  }
-}
-
-// called once only (not once per parse)
-
-void parse_init()
-{
-  current_direction = RIGHT_DIRECTION;
-  current_position.x = 0.0;
-  current_position.y = 0.0;
-  // This resets everything to its default value.
-  reset_all();
-}
-
-void reset(const char *nm)
-{
-  for (unsigned int i = 0;
-       i < sizeof(defaults_table)/sizeof(defaults_table[0]); i++)
-    if (strcmp(nm, defaults_table[i].name) == 0) {
-      double val = defaults_table[i].val;
-      if (defaults_table[i].scaled) {
-	double scale;
-	lookup_variable("scale", &scale);
-	val *= scale;
-      }
-      define_variable(defaults_table[i].name, val);
-      return;
-    }
-  lex_error("`%1' is not a predefined variable", nm);
-}
-
-void reset_all()
-{
-  // We only have to explicitly reset the pre-defined variables that
-  // aren't scaled because `scale' is not scaled, and changing the
-  // value of `scale' will reset all the pre-defined variables that
-  // are scaled.
-  for (unsigned int i = 0;
-       i < sizeof(defaults_table)/sizeof(defaults_table[0]); i++)
-    if (!defaults_table[i].scaled)
-      define_variable(defaults_table[i].name, defaults_table[i].val);
-}
-
-// called after each parse
-
-void parse_cleanup()
-{
-  while (current_saved_state != 0) {
-    delete current_table;
-    current_table = current_saved_state->tbl;
-    saved_state *tem = current_saved_state;
-    current_saved_state = current_saved_state->prev;
-    delete tem;
-  }
-  assert(current_table == &top_table);
-  PTABLE_ITERATOR(place) iter(current_table);
-  const char *key;
-  place *pl;
-  while (iter.next(&key, &pl))
-    if (pl->obj != 0) {
-      position pos = pl->obj->origin();
-      pl->obj = 0;
-      pl->x = pos.x;
-      pl->y = pos.y;
-    }
-  while (olist.head != 0) {
-    object *tem = olist.head;
-    olist.head = olist.head->next;
-    delete tem;
-  }
-  olist.tail = 0;
-  current_direction = RIGHT_DIRECTION;
-  current_position.x = 0.0;
-  current_position.y = 0.0;
-}
-
-const char *ordinal_postfix(int n)
-{
-  if (n < 10 || n > 20)
-    switch (n % 10) {
-    case 1:
-      return "st";
-    case 2:
-      return "nd";
-    case 3:
-      return "rd";
-    }
-  return "th";
-}
-
-const char *object_type_name(object_type type)
-{
-  switch (type) {
-  case BOX_OBJECT:
-    return "box";
-  case CIRCLE_OBJECT:
-    return "circle";
-  case ELLIPSE_OBJECT:
-    return "ellipse";
-  case ARC_OBJECT:
-    return "arc";
-  case SPLINE_OBJECT:
-    return "spline";
-  case LINE_OBJECT:
-    return "line";
-  case ARROW_OBJECT:
-    return "arrow";
-  case MOVE_OBJECT:
-    return "move";
-  case TEXT_OBJECT:
-    return "\"\"";
-  case BLOCK_OBJECT:
-    return "[]";
-  case OTHER_OBJECT:
-  case MARK_OBJECT:
-  default:
-    break;
-  }
-  return "object";
-}
-
-static char sprintf_buf[1024];
-
-char *format_number(const char *form, double n)
-{
-  if (form == 0)
-    form = "%g";
-  return do_sprintf(form, &n, 1);
-}
-
-char *do_sprintf(const char *form, const double *v, int nv)
-{
-  string result;
-  int i = 0;
-  string one_format;
-  while (*form) {
-    if (*form == '%') {
-      one_format += *form++;
-      for (; *form != '\0' && strchr("#-+ 0123456789.", *form) != 0; form++)
-	one_format += *form;
-      if (*form == '\0' || strchr("eEfgG%", *form) == 0) {
-	lex_error("bad sprintf format");
-	result += one_format;
-	result += form;
-	break;
-      }
-      if (*form == '%') {
-	one_format += *form++;
-	one_format += '\0';
-	snprintf(sprintf_buf, sizeof(sprintf_buf),
-		 "%s", one_format.contents());
-      }
-      else {
-	if (i >= nv) {
-	  lex_error("too few arguments to snprintf");
-	  result += one_format;
-	  result += form;
-	  break;
-	}
-	one_format += *form++;
-	one_format += '\0';
-	snprintf(sprintf_buf, sizeof(sprintf_buf),
-		 one_format.contents(), v[i++]);
-      }
-      one_format.clear();
-      result += sprintf_buf;
-    }
-    else
-      result += *form++;
-  }
-  result += '\0';
-  return strsave(result.contents());
-}
diff --git a/src/preproc/refer/label.cpp b/src/preproc/refer/label.cpp
deleted file mode 100644
index 12d2dfa..0000000
--- a/src/preproc/refer/label.cpp
+++ /dev/null
@@ -1,2701 +0,0 @@
-/* A Bison parser, made by GNU Bison 3.0.2.  */
-
-/* Bison implementation for Yacc-like parsers in C
-
-   Copyright (C) 1984, 1989-1990, 2000-2013 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* As a special exception, you may create a larger work that contains
-   part or all of the Bison parser skeleton and distribute that work
-   under terms of your choice, so long as that work isn't itself a
-   parser generator using the skeleton or a modified version thereof
-   as a parser skeleton.  Alternatively, if you modify or redistribute
-   the parser skeleton itself, you may (at your option) remove this
-   special exception, which will cause the skeleton and the resulting
-   Bison output files to be licensed under the GNU General Public
-   License without this special exception.
-
-   This special exception was added by the Free Software Foundation in
-   version 2.2 of Bison.  */
-
-/* C LALR(1) parser skeleton written by Richard Stallman, by
-   simplifying the original so-called "semantic" parser.  */
-
-/* All symbols defined below should begin with yy or YY, to avoid
-   infringing on user name space.  This should be done even for local
-   variables, as they might otherwise be expanded by user macros.
-   There are some unavoidable exceptions within include files to
-   define necessary library symbols; they are noted "INFRINGES ON
-   USER NAME SPACE" below.  */
-
-/* Identify Bison output.  */
-#define YYBISON 1
-
-/* Bison version.  */
-#define YYBISON_VERSION "3.0.2"
-
-/* Skeleton name.  */
-#define YYSKELETON_NAME "yacc.c"
-
-/* Pure parsers.  */
-#define YYPURE 0
-
-/* Push parsers.  */
-#define YYPUSH 0
-
-/* Pull parsers.  */
-#define YYPULL 1
-
-
-
-
-/* Copy the first part of user declarations.  */
-#line 20 "label.y" /* yacc.c:339  */
-
-
-#include "refer.h"
-#include "refid.h"
-#include "ref.h"
-#include "token.h"
-
-int yylex();
-void yyerror(const char *);
-int yyparse();
-
-static const char *format_serial(char c, int n);
-
-struct label_info {
-  int start;
-  int length;
-  int count;
-  int total;
-  label_info(const string &);
-};
-
-label_info *lookup_label(const string &label);
-
-struct expression {
-  enum {
-    // Does the tentative label depend on the reference?
-    CONTAINS_VARIABLE = 01, 
-    CONTAINS_STAR = 02,
-    CONTAINS_FORMAT = 04,
-    CONTAINS_AT = 010
-  };
-  virtual ~expression() { }
-  virtual void evaluate(int, const reference &, string &,
-			substring_position &) = 0;
-  virtual unsigned analyze() { return 0; }
-};
-
-class at_expr : public expression {
-public:
-  at_expr() { }
-  void evaluate(int, const reference &, string &, substring_position &);
-  unsigned analyze() { return CONTAINS_VARIABLE|CONTAINS_AT; }
-};
-
-class format_expr : public expression {
-  char type;
-  int width;
-  int first_number;
-public:
-  format_expr(char c, int w = 0, int f = 1)
-    : type(c), width(w), first_number(f) { }
-  void evaluate(int, const reference &, string &, substring_position &);
-  unsigned analyze() { return CONTAINS_FORMAT; }
-};
-
-class field_expr : public expression {
-  int number;
-  char name;
-public:
-  field_expr(char nm, int num) : number(num), name(nm) { }
-  void evaluate(int, const reference &, string &, substring_position &);
-  unsigned analyze() { return CONTAINS_VARIABLE; }
-};
-
-class literal_expr : public expression {
-  string s;
-public:
-  literal_expr(const char *ptr, int len) : s(ptr, len) { }
-  void evaluate(int, const reference &, string &, substring_position &);
-};
-
-class unary_expr : public expression {
-protected:
-  expression *expr;
-public:
-  unary_expr(expression *e) : expr(e) { }
-  ~unary_expr() { delete expr; }
-  void evaluate(int, const reference &, string &, substring_position &) = 0;
-  unsigned analyze() { return expr ? expr->analyze() : 0; }
-};
-
-// This caches the analysis of an expression.
-
-class analyzed_expr : public unary_expr {
-  unsigned flags;
-public:
-  analyzed_expr(expression *);
-  void evaluate(int, const reference &, string &, substring_position &);
-  unsigned analyze() { return flags; }
-};
-
-class star_expr : public unary_expr {
-public:
-  star_expr(expression *e) : unary_expr(e) { }
-  void evaluate(int, const reference &, string &, substring_position &);
-  unsigned analyze() {
-    return ((expr ? (expr->analyze() & ~CONTAINS_VARIABLE) : 0)
-	    | CONTAINS_STAR);
-  }
-};
-
-typedef void map_func(const char *, const char *, string &);
-
-class map_expr : public unary_expr {
-  map_func *func;
-public:
-  map_expr(expression *e, map_func *f) : unary_expr(e), func(f) { }
-  void evaluate(int, const reference &, string &, substring_position &);
-};
-  
-typedef const char *extractor_func(const char *, const char *, const char **);
-
-class extractor_expr : public unary_expr {
-  int part;
-  extractor_func *func;
-public:
-  enum { BEFORE = +1, MATCH = 0, AFTER = -1 };
-  extractor_expr(expression *e, extractor_func *f, int pt)
-    : unary_expr(e), part(pt), func(f) { }
-  void evaluate(int, const reference &, string &, substring_position &);
-};
-
-class truncate_expr : public unary_expr {
-  int n;
-public:
-  truncate_expr(expression *e, int i) : unary_expr(e), n(i) { } 
-  void evaluate(int, const reference &, string &, substring_position &);
-};
-
-class separator_expr : public unary_expr {
-public:
-  separator_expr(expression *e) : unary_expr(e) { }
-  void evaluate(int, const reference &, string &, substring_position &);
-};
-
-class binary_expr : public expression {
-protected:
-  expression *expr1;
-  expression *expr2;
-public:
-  binary_expr(expression *e1, expression *e2) : expr1(e1), expr2(e2) { }
-  ~binary_expr() { delete expr1; delete expr2; }
-  void evaluate(int, const reference &, string &, substring_position &) = 0;
-  unsigned analyze() {
-    return (expr1 ? expr1->analyze() : 0) | (expr2 ? expr2->analyze() : 0);
-  }
-};
-
-class alternative_expr : public binary_expr {
-public:
-  alternative_expr(expression *e1, expression *e2) : binary_expr(e1, e2) { }
-  void evaluate(int, const reference &, string &, substring_position &);
-};
-
-class list_expr : public binary_expr {
-public:
-  list_expr(expression *e1, expression *e2) : binary_expr(e1, e2) { }
-  void evaluate(int, const reference &, string &, substring_position &);
-};
-
-class substitute_expr : public binary_expr {
-public:
-  substitute_expr(expression *e1, expression *e2) : binary_expr(e1, e2) { }
-  void evaluate(int, const reference &, string &, substring_position &);
-};
-
-class ternary_expr : public expression {
-protected:
-  expression *expr1;
-  expression *expr2;
-  expression *expr3;
-public:
-  ternary_expr(expression *e1, expression *e2, expression *e3)
-    : expr1(e1), expr2(e2), expr3(e3) { }
-  ~ternary_expr() { delete expr1; delete expr2; delete expr3; }
-  void evaluate(int, const reference &, string &, substring_position &) = 0;
-  unsigned analyze() {
-    return ((expr1 ? expr1->analyze() : 0)
-	    | (expr2 ? expr2->analyze() : 0)
-	    | (expr3 ? expr3->analyze() : 0));
-  }
-};
-
-class conditional_expr : public ternary_expr {
-public:
-  conditional_expr(expression *e1, expression *e2, expression *e3)
-    : ternary_expr(e1, e2, e3) { }
-  void evaluate(int, const reference &, string &, substring_position &);
-};
-
-static expression *parsed_label = 0;
-static expression *parsed_date_label = 0;
-static expression *parsed_short_label = 0;
-
-static expression *parse_result;
-
-string literals;
-
-
-#line 266 "label.cpp" /* yacc.c:339  */
-
-# ifndef YY_NULLPTR
-#  if defined __cplusplus && 201103L <= __cplusplus
-#   define YY_NULLPTR nullptr
-#  else
-#   define YY_NULLPTR 0
-#  endif
-# endif
-
-/* Enabling verbose error messages.  */
-#ifdef YYERROR_VERBOSE
-# undef YYERROR_VERBOSE
-# define YYERROR_VERBOSE 1
-#else
-# define YYERROR_VERBOSE 0
-#endif
-
-
-/* Debug traces.  */
-#ifndef YYDEBUG
-# define YYDEBUG 0
-#endif
-#if YYDEBUG
-extern int yydebug;
-#endif
-
-/* Token type.  */
-#ifndef YYTOKENTYPE
-# define YYTOKENTYPE
-  enum yytokentype
-  {
-    TOKEN_LETTER = 258,
-    TOKEN_LITERAL = 259,
-    TOKEN_DIGIT = 260
-  };
-#endif
-/* Tokens.  */
-#define TOKEN_LETTER 258
-#define TOKEN_LITERAL 259
-#define TOKEN_DIGIT 260
-
-/* Value type.  */
-#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
-typedef union YYSTYPE YYSTYPE;
-union YYSTYPE
-{
-#line 220 "label.y" /* yacc.c:355  */
-
-  int num;
-  expression *expr;
-  struct { int ndigits; int val; } dig;
-  struct { int start; int len; } str;
-
-#line 320 "label.cpp" /* yacc.c:355  */
-};
-# define YYSTYPE_IS_TRIVIAL 1
-# define YYSTYPE_IS_DECLARED 1
-#endif
-
-
-extern YYSTYPE yylval;
-
-int yyparse (void);
-
-
-
-/* Copy the second part of user declarations.  */
-
-#line 335 "label.cpp" /* yacc.c:358  */
-
-#ifdef short
-# undef short
-#endif
-
-#ifdef YYTYPE_UINT8
-typedef YYTYPE_UINT8 yytype_uint8;
-#else
-typedef unsigned char yytype_uint8;
-#endif
-
-#ifdef YYTYPE_INT8
-typedef YYTYPE_INT8 yytype_int8;
-#else
-typedef signed char yytype_int8;
-#endif
-
-#ifdef YYTYPE_UINT16
-typedef YYTYPE_UINT16 yytype_uint16;
-#else
-typedef unsigned short int yytype_uint16;
-#endif
-
-#ifdef YYTYPE_INT16
-typedef YYTYPE_INT16 yytype_int16;
-#else
-typedef short int yytype_int16;
-#endif
-
-#ifndef YYSIZE_T
-# ifdef __SIZE_TYPE__
-#  define YYSIZE_T __SIZE_TYPE__
-# elif defined size_t
-#  define YYSIZE_T size_t
-# elif ! defined YYSIZE_T
-#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
-#  define YYSIZE_T size_t
-# else
-#  define YYSIZE_T unsigned int
-# endif
-#endif
-
-#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
-
-#ifndef YY_
-# if defined YYENABLE_NLS && YYENABLE_NLS
-#  if ENABLE_NLS
-#   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
-#   define YY_(Msgid) dgettext ("bison-runtime", Msgid)
-#  endif
-# endif
-# ifndef YY_
-#  define YY_(Msgid) Msgid
-# endif
-#endif
-
-#ifndef YY_ATTRIBUTE
-# if (defined __GNUC__                                               \
-      && (2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__)))  \
-     || defined __SUNPRO_C && 0x5110 <= __SUNPRO_C
-#  define YY_ATTRIBUTE(Spec) __attribute__(Spec)
-# else
-#  define YY_ATTRIBUTE(Spec) /* empty */
-# endif
-#endif
-
-#ifndef YY_ATTRIBUTE_PURE
-# define YY_ATTRIBUTE_PURE   YY_ATTRIBUTE ((__pure__))
-#endif
-
-#ifndef YY_ATTRIBUTE_UNUSED
-# define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__))
-#endif
-
-#if !defined _Noreturn \
-     && (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112)
-# if defined _MSC_VER && 1200 <= _MSC_VER
-#  define _Noreturn __declspec (noreturn)
-# else
-#  define _Noreturn YY_ATTRIBUTE ((__noreturn__))
-# endif
-#endif
-
-/* Suppress unused-variable warnings by "using" E.  */
-#if ! defined lint || defined __GNUC__
-# define YYUSE(E) ((void) (E))
-#else
-# define YYUSE(E) /* empty */
-#endif
-
-#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
-/* Suppress an incorrect diagnostic about yylval being uninitialized.  */
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
-    _Pragma ("GCC diagnostic push") \
-    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
-    _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
-# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
-    _Pragma ("GCC diagnostic pop")
-#else
-# define YY_INITIAL_VALUE(Value) Value
-#endif
-#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-# define YY_IGNORE_MAYBE_UNINITIALIZED_END
-#endif
-#ifndef YY_INITIAL_VALUE
-# define YY_INITIAL_VALUE(Value) /* Nothing. */
-#endif
-
-
-#if ! defined yyoverflow || YYERROR_VERBOSE
-
-/* The parser invokes alloca or malloc; define the necessary symbols.  */
-
-# ifdef YYSTACK_USE_ALLOCA
-#  if YYSTACK_USE_ALLOCA
-#   ifdef __GNUC__
-#    define YYSTACK_ALLOC __builtin_alloca
-#   elif defined __BUILTIN_VA_ARG_INCR
-#    include <alloca.h> /* INFRINGES ON USER NAME SPACE */
-#   elif defined _AIX
-#    define YYSTACK_ALLOC __alloca
-#   elif defined _MSC_VER
-#    include <malloc.h> /* INFRINGES ON USER NAME SPACE */
-#    define alloca _alloca
-#   else
-#    define YYSTACK_ALLOC alloca
-#    if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS
-#     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-      /* Use EXIT_SUCCESS as a witness for stdlib.h.  */
-#     ifndef EXIT_SUCCESS
-#      define EXIT_SUCCESS 0
-#     endif
-#    endif
-#   endif
-#  endif
-# endif
-
-# ifdef YYSTACK_ALLOC
-   /* Pacify GCC's 'empty if-body' warning.  */
-#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
-#  ifndef YYSTACK_ALLOC_MAXIMUM
-    /* The OS might guarantee only one guard page at the bottom of the stack,
-       and a page size can be as small as 4096 bytes.  So we cannot safely
-       invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
-       to allow for a few compiler-allocated temporary stack slots.  */
-#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
-#  endif
-# else
-#  define YYSTACK_ALLOC YYMALLOC
-#  define YYSTACK_FREE YYFREE
-#  ifndef YYSTACK_ALLOC_MAXIMUM
-#   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
-#  endif
-#  if (defined __cplusplus && ! defined EXIT_SUCCESS \
-       && ! ((defined YYMALLOC || defined malloc) \
-             && (defined YYFREE || defined free)))
-#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-#   ifndef EXIT_SUCCESS
-#    define EXIT_SUCCESS 0
-#   endif
-#  endif
-#  ifndef YYMALLOC
-#   define YYMALLOC malloc
-#   if ! defined malloc && ! defined EXIT_SUCCESS
-void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
-#   endif
-#  endif
-#  ifndef YYFREE
-#   define YYFREE free
-#   if ! defined free && ! defined EXIT_SUCCESS
-void free (void *); /* INFRINGES ON USER NAME SPACE */
-#   endif
-#  endif
-# endif
-#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
-
-
-#if (! defined yyoverflow \
-     && (! defined __cplusplus \
-         || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
-
-/* A type that is properly aligned for any stack member.  */
-union yyalloc
-{
-  yytype_int16 yyss_alloc;
-  YYSTYPE yyvs_alloc;
-};
-
-/* The size of the maximum gap between one aligned stack and the next.  */
-# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
-
-/* The size of an array large to enough to hold all stacks, each with
-   N elements.  */
-# define YYSTACK_BYTES(N) \
-     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
-      + YYSTACK_GAP_MAXIMUM)
-
-# define YYCOPY_NEEDED 1
-
-/* Relocate STACK from its old location to the new one.  The
-   local variables YYSIZE and YYSTACKSIZE give the old and new number of
-   elements in the stack, and YYPTR gives the new location of the
-   stack.  Advance YYPTR to a properly aligned location for the next
-   stack.  */
-# define YYSTACK_RELOCATE(Stack_alloc, Stack)                           \
-    do                                                                  \
-      {                                                                 \
-        YYSIZE_T yynewbytes;                                            \
-        YYCOPY (&yyptr->Stack_alloc, Stack, yysize);                    \
-        Stack = &yyptr->Stack_alloc;                                    \
-        yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
-        yyptr += yynewbytes / sizeof (*yyptr);                          \
-      }                                                                 \
-    while (0)
-
-#endif
-
-#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
-/* Copy COUNT objects from SRC to DST.  The source and destination do
-   not overlap.  */
-# ifndef YYCOPY
-#  if defined __GNUC__ && 1 < __GNUC__
-#   define YYCOPY(Dst, Src, Count) \
-      __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src)))
-#  else
-#   define YYCOPY(Dst, Src, Count)              \
-      do                                        \
-        {                                       \
-          YYSIZE_T yyi;                         \
-          for (yyi = 0; yyi < (Count); yyi++)   \
-            (Dst)[yyi] = (Src)[yyi];            \
-        }                                       \
-      while (0)
-#  endif
-# endif
-#endif /* !YYCOPY_NEEDED */
-
-/* YYFINAL -- State number of the termination state.  */
-#define YYFINAL  21
-/* YYLAST -- Last index in YYTABLE.  */
-#define YYLAST   39
-
-/* YYNTOKENS -- Number of terminals.  */
-#define YYNTOKENS  21
-/* YYNNTS -- Number of nonterminals.  */
-#define YYNNTS  12
-/* YYNRULES -- Number of rules.  */
-#define YYNRULES  34
-/* YYNSTATES -- Number of states.  */
-#define YYNSTATES  49
-
-/* YYTRANSLATE[YYX] -- Symbol number corresponding to YYX as returned
-   by yylex, with out-of-bounds checking.  */
-#define YYUNDEFTOK  2
-#define YYMAXUTOK   260
-
-#define YYTRANSLATE(YYX)                                                \
-  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
-
-/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
-   as returned by yylex, without out-of-bounds checking.  */
-static const yytype_uint8 yytranslate[] =
-{
-       0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,    12,     9,     2,
-      17,    18,    16,    14,     2,    15,    13,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     7,     2,
-      19,     2,    20,     6,    11,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     8,     2,    10,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
-       5
-};
-
-#if YYDEBUG
-  /* YYRLINE[YYN] -- Source line where rule number YYN was defined.  */
-static const yytype_uint16 yyrline[] =
-{
-       0,   248,   248,   253,   255,   261,   262,   267,   269,   271,
-     276,   278,   283,   285,   290,   292,   297,   299,   301,   317,
-     321,   352,   354,   356,   358,   360,   366,   367,   372,   374,
-     379,   381,   388,   389,   391
-};
-#endif
-
-#if YYDEBUG || YYERROR_VERBOSE || 0
-/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
-   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
-static const char *const yytname[] =
-{
-  "$end", "error", "$undefined", "TOKEN_LETTER", "TOKEN_LITERAL",
-  "TOKEN_DIGIT", "'?'", "':'", "'|'", "'&'", "'~'", "'@'", "'%'", "'.'",
-  "'+'", "'-'", "'*'", "'('", "')'", "'<'", "'>'", "$accept", "expr",
-  "conditional", "optional_conditional", "alternative", "list",
-  "substitute", "string", "optional_number", "number", "digits", "flag", YY_NULLPTR
-};
-#endif
-
-# ifdef YYPRINT
-/* YYTOKNUM[NUM] -- (External) token number corresponding to the
-   (internal) symbol number NUM (which must be that of a token).  */
-static const yytype_uint16 yytoknum[] =
-{
-       0,   256,   257,   258,   259,   260,    63,    58,   124,    38,
-     126,    64,    37,    46,    43,    45,    42,    40,    41,    60,
-      62
-};
-# endif
-
-#define YYPACT_NINF -26
-
-#define yypact_value_is_default(Yystate) \
-  (!!((Yystate) == (-26)))
-
-#define YYTABLE_NINF -1
-
-#define yytable_value_is_error(Yytable_value) \
-  0
-
-  /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
-     STATE-NUM.  */
-static const yytype_int8 yypact[] =
-{
-       2,    11,   -26,   -26,    12,     2,     2,    24,   -26,   -26,
-      21,     2,    18,    -6,   -26,    26,   -26,   -26,    27,    15,
-      14,   -26,     2,     2,     2,    18,     2,    -3,    11,    11,
-     -26,   -26,   -26,   -26,   -26,    28,     2,     2,    -6,   -26,
-     -26,    33,    26,    26,     2,    11,   -26,   -26,    26
-};
-
-  /* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.
-     Performed when YYTABLE does not specify something else to do.  Zero
-     means the default is an error.  */
-static const yytype_uint8 yydefact[] =
-{
-       5,    16,    15,    14,     0,     5,     5,     0,     6,     2,
-       3,     7,    10,    12,    28,    17,    18,    30,    19,     0,
-       0,     1,     5,     0,     0,    11,     0,    32,     0,     0,
-      23,    29,    31,    24,    25,     0,     8,     9,    13,    33,
-      34,     0,    21,    22,     0,    26,     4,    20,    27
-};
-
-  /* YYPGOTO[NTERM-NUM].  */
-static const yytype_int8 yypgoto[] =
-{
-     -26,   -26,    -7,    -4,   -26,    -1,   -11,    13,   -26,   -25,
-     -26,   -26
-};
-
-  /* YYDEFGOTO[NTERM-NUM].  */
-static const yytype_int8 yydefgoto[] =
-{
-      -1,     7,     8,     9,    10,    11,    12,    13,    47,    15,
-      18,    41
-};
-
-  /* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM.  If
-     positive, shift that token.  If negative, reduce the rule whose
-     number is the opposite.  If YYTABLE_NINF, syntax error.  */
-static const yytype_uint8 yytable[] =
-{
-      25,    19,    20,    42,    43,     1,     2,    27,    28,    29,
-      30,    39,    40,     3,     4,    16,    14,    17,    35,     5,
-      48,     6,    36,    37,    21,    25,    25,    22,    26,    23,
-      24,    31,    32,    33,    34,    44,    45,    46,     0,    38
-};
-
-static const yytype_int8 yycheck[] =
-{
-      11,     5,     6,    28,    29,     3,     4,    13,    14,    15,
-      16,    14,    15,    11,    12,     3,     5,     5,    22,    17,
-      45,    19,    23,    24,     0,    36,    37,     6,    10,     8,
-       9,     5,     5,    18,    20,     7,     3,    44,    -1,    26
-};
-
-  /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
-     symbol of state STATE-NUM.  */
-static const yytype_uint8 yystos[] =
-{
-       0,     3,     4,    11,    12,    17,    19,    22,    23,    24,
-      25,    26,    27,    28,     5,    30,     3,     5,    31,    24,
-      24,     0,     6,     8,     9,    27,    10,    13,    14,    15,
-      16,     5,     5,    18,    20,    24,    26,    26,    28,    14,
-      15,    32,    30,    30,     7,     3,    23,    29,    30
-};
-
-  /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
-static const yytype_uint8 yyr1[] =
-{
-       0,    21,    22,    23,    23,    24,    24,    25,    25,    25,
-      26,    26,    27,    27,    28,    28,    28,    28,    28,    28,
-      28,    28,    28,    28,    28,    28,    29,    29,    30,    30,
-      31,    31,    32,    32,    32
-};
-
-  /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN.  */
-static const yytype_uint8 yyr2[] =
-{
-       0,     2,     1,     1,     5,     0,     1,     1,     3,     3,
-       1,     2,     1,     3,     1,     1,     1,     2,     2,     2,
-       5,     3,     3,     2,     3,     3,     0,     1,     1,     2,
-       1,     2,     0,     1,     1
-};
-
-
-#define yyerrok         (yyerrstatus = 0)
-#define yyclearin       (yychar = YYEMPTY)
-#define YYEMPTY         (-2)
-#define YYEOF           0
-
-#define YYACCEPT        goto yyacceptlab
-#define YYABORT         goto yyabortlab
-#define YYERROR         goto yyerrorlab
-
-
-#define YYRECOVERING()  (!!yyerrstatus)
-
-#define YYBACKUP(Token, Value)                                  \
-do                                                              \
-  if (yychar == YYEMPTY)                                        \
-    {                                                           \
-      yychar = (Token);                                         \
-      yylval = (Value);                                         \
-      YYPOPSTACK (yylen);                                       \
-      yystate = *yyssp;                                         \
-      goto yybackup;                                            \
-    }                                                           \
-  else                                                          \
-    {                                                           \
-      yyerror (YY_("syntax error: cannot back up")); \
-      YYERROR;                                                  \
-    }                                                           \
-while (0)
-
-/* Error token number */
-#define YYTERROR        1
-#define YYERRCODE       256
-
-
-
-/* Enable debugging if requested.  */
-#if YYDEBUG
-
-# ifndef YYFPRINTF
-#  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
-#  define YYFPRINTF fprintf
-# endif
-
-# define YYDPRINTF(Args)                        \
-do {                                            \
-  if (yydebug)                                  \
-    YYFPRINTF Args;                             \
-} while (0)
-
-/* This macro is provided for backward compatibility. */
-#ifndef YY_LOCATION_PRINT
-# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
-#endif
-
-
-# define YY_SYMBOL_PRINT(Title, Type, Value, Location)                    \
-do {                                                                      \
-  if (yydebug)                                                            \
-    {                                                                     \
-      YYFPRINTF (stderr, "%s ", Title);                                   \
-      yy_symbol_print (stderr,                                            \
-                  Type, Value); \
-      YYFPRINTF (stderr, "\n");                                           \
-    }                                                                     \
-} while (0)
-
-
-/*----------------------------------------.
-| Print this symbol's value on YYOUTPUT.  |
-`----------------------------------------*/
-
-static void
-yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
-{
-  FILE *yyo = yyoutput;
-  YYUSE (yyo);
-  if (!yyvaluep)
-    return;
-# ifdef YYPRINT
-  if (yytype < YYNTOKENS)
-    YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
-# endif
-  YYUSE (yytype);
-}
-
-
-/*--------------------------------.
-| Print this symbol on YYOUTPUT.  |
-`--------------------------------*/
-
-static void
-yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
-{
-  YYFPRINTF (yyoutput, "%s %s (",
-             yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]);
-
-  yy_symbol_value_print (yyoutput, yytype, yyvaluep);
-  YYFPRINTF (yyoutput, ")");
-}
-
-/*------------------------------------------------------------------.
-| yy_stack_print -- Print the state stack from its BOTTOM up to its |
-| TOP (included).                                                   |
-`------------------------------------------------------------------*/
-
-static void
-yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
-{
-  YYFPRINTF (stderr, "Stack now");
-  for (; yybottom <= yytop; yybottom++)
-    {
-      int yybot = *yybottom;
-      YYFPRINTF (stderr, " %d", yybot);
-    }
-  YYFPRINTF (stderr, "\n");
-}
-
-# define YY_STACK_PRINT(Bottom, Top)                            \
-do {                                                            \
-  if (yydebug)                                                  \
-    yy_stack_print ((Bottom), (Top));                           \
-} while (0)
-
-
-/*------------------------------------------------.
-| Report that the YYRULE is going to be reduced.  |
-`------------------------------------------------*/
-
-static void
-yy_reduce_print (yytype_int16 *yyssp, YYSTYPE *yyvsp, int yyrule)
-{
-  unsigned long int yylno = yyrline[yyrule];
-  int yynrhs = yyr2[yyrule];
-  int yyi;
-  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
-             yyrule - 1, yylno);
-  /* The symbols being reduced.  */
-  for (yyi = 0; yyi < yynrhs; yyi++)
-    {
-      YYFPRINTF (stderr, "   $%d = ", yyi + 1);
-      yy_symbol_print (stderr,
-                       yystos[yyssp[yyi + 1 - yynrhs]],
-                       &(yyvsp[(yyi + 1) - (yynrhs)])
-                                              );
-      YYFPRINTF (stderr, "\n");
-    }
-}
-
-# define YY_REDUCE_PRINT(Rule)          \
-do {                                    \
-  if (yydebug)                          \
-    yy_reduce_print (yyssp, yyvsp, Rule); \
-} while (0)
-
-/* Nonzero means print parse trace.  It is left uninitialized so that
-   multiple parsers can coexist.  */
-int yydebug;
-#else /* !YYDEBUG */
-# define YYDPRINTF(Args)
-# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
-# define YY_STACK_PRINT(Bottom, Top)
-# define YY_REDUCE_PRINT(Rule)
-#endif /* !YYDEBUG */
-
-
-/* YYINITDEPTH -- initial size of the parser's stacks.  */
-#ifndef YYINITDEPTH
-# define YYINITDEPTH 200
-#endif
-
-/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
-   if the built-in stack extension method is used).
-
-   Do not make this value too large; the results are undefined if
-   YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
-   evaluated with infinite-precision integer arithmetic.  */
-
-#ifndef YYMAXDEPTH
-# define YYMAXDEPTH 10000
-#endif
-
-
-#if YYERROR_VERBOSE
-
-# ifndef yystrlen
-#  if defined __GLIBC__ && defined _STRING_H
-#   define yystrlen strlen
-#  else
-/* Return the length of YYSTR.  */
-static YYSIZE_T
-yystrlen (const char *yystr)
-{
-  YYSIZE_T yylen;
-  for (yylen = 0; yystr[yylen]; yylen++)
-    continue;
-  return yylen;
-}
-#  endif
-# endif
-
-# ifndef yystpcpy
-#  if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
-#   define yystpcpy stpcpy
-#  else
-/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
-   YYDEST.  */
-static char *
-yystpcpy (char *yydest, const char *yysrc)
-{
-  char *yyd = yydest;
-  const char *yys = yysrc;
-
-  while ((*yyd++ = *yys++) != '\0')
-    continue;
-
-  return yyd - 1;
-}
-#  endif
-# endif
-
-# ifndef yytnamerr
-/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
-   quotes and backslashes, so that it's suitable for yyerror.  The
-   heuristic is that double-quoting is unnecessary unless the string
-   contains an apostrophe, a comma, or backslash (other than
-   backslash-backslash).  YYSTR is taken from yytname.  If YYRES is
-   null, do not copy; instead, return the length of what the result
-   would have been.  */
-static YYSIZE_T
-yytnamerr (char *yyres, const char *yystr)
-{
-  if (*yystr == '"')
-    {
-      YYSIZE_T yyn = 0;
-      char const *yyp = yystr;
-
-      for (;;)
-        switch (*++yyp)
-          {
-          case '\'':
-          case ',':
-            goto do_not_strip_quotes;
-
-          case '\\':
-            if (*++yyp != '\\')
-              goto do_not_strip_quotes;
-            /* Fall through.  */
-          default:
-            if (yyres)
-              yyres[yyn] = *yyp;
-            yyn++;
-            break;
-
-          case '"':
-            if (yyres)
-              yyres[yyn] = '\0';
-            return yyn;
-          }
-    do_not_strip_quotes: ;
-    }
-
-  if (! yyres)
-    return yystrlen (yystr);
-
-  return yystpcpy (yyres, yystr) - yyres;
-}
-# endif
-
-/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
-   about the unexpected token YYTOKEN for the state stack whose top is
-   YYSSP.
-
-   Return 0 if *YYMSG was successfully written.  Return 1 if *YYMSG is
-   not large enough to hold the message.  In that case, also set
-   *YYMSG_ALLOC to the required number of bytes.  Return 2 if the
-   required number of bytes is too large to store.  */
-static int
-yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
-                yytype_int16 *yyssp, int yytoken)
-{
-  YYSIZE_T yysize0 = yytnamerr (YY_NULLPTR, yytname[yytoken]);
-  YYSIZE_T yysize = yysize0;
-  enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
-  /* Internationalized format string. */
-  const char *yyformat = YY_NULLPTR;
-  /* Arguments of yyformat. */
-  char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
-  /* Number of reported tokens (one for the "unexpected", one per
-     "expected"). */
-  int yycount = 0;
-
-  /* There are many possibilities here to consider:
-     - If this state is a consistent state with a default action, then
-       the only way this function was invoked is if the default action
-       is an error action.  In that case, don't check for expected
-       tokens because there are none.
-     - The only way there can be no lookahead present (in yychar) is if
-       this state is a consistent state with a default action.  Thus,
-       detecting the absence of a lookahead is sufficient to determine
-       that there is no unexpected or expected token to report.  In that
-       case, just report a simple "syntax error".
-     - Don't assume there isn't a lookahead just because this state is a
-       consistent state with a default action.  There might have been a
-       previous inconsistent state, consistent state with a non-default
-       action, or user semantic action that manipulated yychar.
-     - Of course, the expected token list depends on states to have
-       correct lookahead information, and it depends on the parser not
-       to perform extra reductions after fetching a lookahead from the
-       scanner and before detecting a syntax error.  Thus, state merging
-       (from LALR or IELR) and default reductions corrupt the expected
-       token list.  However, the list is correct for canonical LR with
-       one exception: it will still contain any token that will not be
-       accepted due to an error action in a later state.
-  */
-  if (yytoken != YYEMPTY)
-    {
-      int yyn = yypact[*yyssp];
-      yyarg[yycount++] = yytname[yytoken];
-      if (!yypact_value_is_default (yyn))
-        {
-          /* Start YYX at -YYN if negative to avoid negative indexes in
-             YYCHECK.  In other words, skip the first -YYN actions for
-             this state because they are default actions.  */
-          int yyxbegin = yyn < 0 ? -yyn : 0;
-          /* Stay within bounds of both yycheck and yytname.  */
-          int yychecklim = YYLAST - yyn + 1;
-          int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
-          int yyx;
-
-          for (yyx = yyxbegin; yyx < yyxend; ++yyx)
-            if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
-                && !yytable_value_is_error (yytable[yyx + yyn]))
-              {
-                if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
-                  {
-                    yycount = 1;
-                    yysize = yysize0;
-                    break;
-                  }
-                yyarg[yycount++] = yytname[yyx];
-                {
-                  YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULLPTR, yytname[yyx]);
-                  if (! (yysize <= yysize1
-                         && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
-                    return 2;
-                  yysize = yysize1;
-                }
-              }
-        }
-    }
-
-  switch (yycount)
-    {
-# define YYCASE_(N, S)                      \
-      case N:                               \
-        yyformat = S;                       \
-      break
-      YYCASE_(0, YY_("syntax error"));
-      YYCASE_(1, YY_("syntax error, unexpected %s"));
-      YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
-      YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
-      YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
-      YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
-# undef YYCASE_
-    }
-
-  {
-    YYSIZE_T yysize1 = yysize + yystrlen (yyformat);
-    if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
-      return 2;
-    yysize = yysize1;
-  }
-
-  if (*yymsg_alloc < yysize)
-    {
-      *yymsg_alloc = 2 * yysize;
-      if (! (yysize <= *yymsg_alloc
-             && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
-        *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
-      return 1;
-    }
-
-  /* Avoid sprintf, as that infringes on the user's name space.
-     Don't have undefined behavior even if the translation
-     produced a string with the wrong number of "%s"s.  */
-  {
-    char *yyp = *yymsg;
-    int yyi = 0;
-    while ((*yyp = *yyformat) != '\0')
-      if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
-        {
-          yyp += yytnamerr (yyp, yyarg[yyi++]);
-          yyformat += 2;
-        }
-      else
-        {
-          yyp++;
-          yyformat++;
-        }
-  }
-  return 0;
-}
-#endif /* YYERROR_VERBOSE */
-
-/*-----------------------------------------------.
-| Release the memory associated to this symbol.  |
-`-----------------------------------------------*/
-
-static void
-yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep)
-{
-  YYUSE (yyvaluep);
-  if (!yymsg)
-    yymsg = "Deleting";
-  YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
-
-  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-  YYUSE (yytype);
-  YY_IGNORE_MAYBE_UNINITIALIZED_END
-}
-
-
-
-
-/* The lookahead symbol.  */
-int yychar;
-
-/* The semantic value of the lookahead symbol.  */
-YYSTYPE yylval;
-/* Number of syntax errors so far.  */
-int yynerrs;
-
-
-/*----------.
-| yyparse.  |
-`----------*/
-
-int
-yyparse (void)
-{
-    int yystate;
-    /* Number of tokens to shift before error messages enabled.  */
-    int yyerrstatus;
-
-    /* The stacks and their tools:
-       'yyss': related to states.
-       'yyvs': related to semantic values.
-
-       Refer to the stacks through separate pointers, to allow yyoverflow
-       to reallocate them elsewhere.  */
-
-    /* The state stack.  */
-    yytype_int16 yyssa[YYINITDEPTH];
-    yytype_int16 *yyss;
-    yytype_int16 *yyssp;
-
-    /* The semantic value stack.  */
-    YYSTYPE yyvsa[YYINITDEPTH];
-    YYSTYPE *yyvs;
-    YYSTYPE *yyvsp;
-
-    YYSIZE_T yystacksize;
-
-  int yyn;
-  int yyresult;
-  /* Lookahead token as an internal (translated) token number.  */
-  int yytoken = 0;
-  /* The variables used to return semantic value and location from the
-     action routines.  */
-  YYSTYPE yyval;
-
-#if YYERROR_VERBOSE
-  /* Buffer for error messages, and its allocated size.  */
-  char yymsgbuf[128];
-  char *yymsg = yymsgbuf;
-  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
-#endif
-
-#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N))
-
-  /* The number of symbols on the RHS of the reduced rule.
-     Keep to zero when no symbol should be popped.  */
-  int yylen = 0;
-
-  yyssp = yyss = yyssa;
-  yyvsp = yyvs = yyvsa;
-  yystacksize = YYINITDEPTH;
-
-  YYDPRINTF ((stderr, "Starting parse\n"));
-
-  yystate = 0;
-  yyerrstatus = 0;
-  yynerrs = 0;
-  yychar = YYEMPTY; /* Cause a token to be read.  */
-  goto yysetstate;
-
-/*------------------------------------------------------------.
-| yynewstate -- Push a new state, which is found in yystate.  |
-`------------------------------------------------------------*/
- yynewstate:
-  /* In all cases, when you get here, the value and location stacks
-     have just been pushed.  So pushing a state here evens the stacks.  */
-  yyssp++;
-
- yysetstate:
-  *yyssp = yystate;
-
-  if (yyss + yystacksize - 1 <= yyssp)
-    {
-      /* Get the current used size of the three stacks, in elements.  */
-      YYSIZE_T yysize = yyssp - yyss + 1;
-
-#ifdef yyoverflow
-      {
-        /* Give user a chance to reallocate the stack.  Use copies of
-           these so that the &'s don't force the real ones into
-           memory.  */
-        YYSTYPE *yyvs1 = yyvs;
-        yytype_int16 *yyss1 = yyss;
-
-        /* Each stack pointer address is followed by the size of the
-           data in use in that stack, in bytes.  This used to be a
-           conditional around just the two extra args, but that might
-           be undefined if yyoverflow is a macro.  */
-        yyoverflow (YY_("memory exhausted"),
-                    &yyss1, yysize * sizeof (*yyssp),
-                    &yyvs1, yysize * sizeof (*yyvsp),
-                    &yystacksize);
-
-        yyss = yyss1;
-        yyvs = yyvs1;
-      }
-#else /* no yyoverflow */
-# ifndef YYSTACK_RELOCATE
-      goto yyexhaustedlab;
-# else
-      /* Extend the stack our own way.  */
-      if (YYMAXDEPTH <= yystacksize)
-        goto yyexhaustedlab;
-      yystacksize *= 2;
-      if (YYMAXDEPTH < yystacksize)
-        yystacksize = YYMAXDEPTH;
-
-      {
-        yytype_int16 *yyss1 = yyss;
-        union yyalloc *yyptr =
-          (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
-        if (! yyptr)
-          goto yyexhaustedlab;
-        YYSTACK_RELOCATE (yyss_alloc, yyss);
-        YYSTACK_RELOCATE (yyvs_alloc, yyvs);
-#  undef YYSTACK_RELOCATE
-        if (yyss1 != yyssa)
-          YYSTACK_FREE (yyss1);
-      }
-# endif
-#endif /* no yyoverflow */
-
-      yyssp = yyss + yysize - 1;
-      yyvsp = yyvs + yysize - 1;
-
-      YYDPRINTF ((stderr, "Stack size increased to %lu\n",
-                  (unsigned long int) yystacksize));
-
-      if (yyss + yystacksize - 1 <= yyssp)
-        YYABORT;
-    }
-
-  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
-
-  if (yystate == YYFINAL)
-    YYACCEPT;
-
-  goto yybackup;
-
-/*-----------.
-| yybackup.  |
-`-----------*/
-yybackup:
-
-  /* Do appropriate processing given the current state.  Read a
-     lookahead token if we need one and don't already have one.  */
-
-  /* First try to decide what to do without reference to lookahead token.  */
-  yyn = yypact[yystate];
-  if (yypact_value_is_default (yyn))
-    goto yydefault;
-
-  /* Not known => get a lookahead token if don't already have one.  */
-
-  /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol.  */
-  if (yychar == YYEMPTY)
-    {
-      YYDPRINTF ((stderr, "Reading a token: "));
-      yychar = yylex ();
-    }
-
-  if (yychar <= YYEOF)
-    {
-      yychar = yytoken = YYEOF;
-      YYDPRINTF ((stderr, "Now at end of input.\n"));
-    }
-  else
-    {
-      yytoken = YYTRANSLATE (yychar);
-      YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
-    }
-
-  /* If the proper action on seeing token YYTOKEN is to reduce or to
-     detect an error, take that action.  */
-  yyn += yytoken;
-  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
-    goto yydefault;
-  yyn = yytable[yyn];
-  if (yyn <= 0)
-    {
-      if (yytable_value_is_error (yyn))
-        goto yyerrlab;
-      yyn = -yyn;
-      goto yyreduce;
-    }
-
-  /* Count tokens shifted since error; after three, turn off error
-     status.  */
-  if (yyerrstatus)
-    yyerrstatus--;
-
-  /* Shift the lookahead token.  */
-  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
-
-  /* Discard the shifted token.  */
-  yychar = YYEMPTY;
-
-  yystate = yyn;
-  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-  *++yyvsp = yylval;
-  YY_IGNORE_MAYBE_UNINITIALIZED_END
-
-  goto yynewstate;
-
-
-/*-----------------------------------------------------------.
-| yydefault -- do the default action for the current state.  |
-`-----------------------------------------------------------*/
-yydefault:
-  yyn = yydefact[yystate];
-  if (yyn == 0)
-    goto yyerrlab;
-  goto yyreduce;
-
-
-/*-----------------------------.
-| yyreduce -- Do a reduction.  |
-`-----------------------------*/
-yyreduce:
-  /* yyn is the number of a rule to reduce with.  */
-  yylen = yyr2[yyn];
-
-  /* If YYLEN is nonzero, implement the default value of the action:
-     '$$ = $1'.
-
-     Otherwise, the following line sets YYVAL to garbage.
-     This behavior is undocumented and Bison
-     users should not rely upon it.  Assigning to YYVAL
-     unconditionally makes the parser a bit smaller, and it avoids a
-     GCC warning that YYVAL may be used uninitialized.  */
-  yyval = yyvsp[1-yylen];
-
-
-  YY_REDUCE_PRINT (yyn);
-  switch (yyn)
-    {
-        case 2:
-#line 249 "label.y" /* yacc.c:1646  */
-    { parse_result = ((yyvsp[0].expr) ? new analyzed_expr((yyvsp[0].expr)) : 0); }
-#line 1435 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 3:
-#line 254 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = (yyvsp[0].expr); }
-#line 1441 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 4:
-#line 256 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new conditional_expr((yyvsp[-4].expr), (yyvsp[-2].expr), (yyvsp[0].expr)); }
-#line 1447 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 5:
-#line 261 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = 0; }
-#line 1453 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 6:
-#line 263 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = (yyvsp[0].expr); }
-#line 1459 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 7:
-#line 268 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = (yyvsp[0].expr); }
-#line 1465 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 8:
-#line 270 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new alternative_expr((yyvsp[-2].expr), (yyvsp[0].expr)); }
-#line 1471 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 9:
-#line 272 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new conditional_expr((yyvsp[-2].expr), (yyvsp[0].expr), 0); }
-#line 1477 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 10:
-#line 277 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = (yyvsp[0].expr); }
-#line 1483 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 11:
-#line 279 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new list_expr((yyvsp[-1].expr), (yyvsp[0].expr)); }
-#line 1489 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 12:
-#line 284 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = (yyvsp[0].expr); }
-#line 1495 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 13:
-#line 286 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new substitute_expr((yyvsp[-2].expr), (yyvsp[0].expr)); }
-#line 1501 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 14:
-#line 291 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new at_expr; }
-#line 1507 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 15:
-#line 293 "label.y" /* yacc.c:1646  */
-    {
-		  (yyval.expr) = new literal_expr(literals.contents() + (yyvsp[0].str).start,
-					(yyvsp[0].str).len);
-		}
-#line 1516 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 16:
-#line 298 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new field_expr((yyvsp[0].num), 0); }
-#line 1522 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 17:
-#line 300 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new field_expr((yyvsp[-1].num), (yyvsp[0].num) - 1); }
-#line 1528 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 18:
-#line 302 "label.y" /* yacc.c:1646  */
-    {
-		  switch ((yyvsp[0].num)) {
-		  case 'I':
-		  case 'i':
-		  case 'A':
-		  case 'a':
-		    (yyval.expr) = new format_expr((yyvsp[0].num));
-		    break;
-		  default:
-		    command_error("unrecognized format `%1'", char((yyvsp[0].num)));
-		    (yyval.expr) = new format_expr('a');
-		    break;
-		  }
-		}
-#line 1547 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 19:
-#line 318 "label.y" /* yacc.c:1646  */
-    {
-		  (yyval.expr) = new format_expr('0', (yyvsp[0].dig).ndigits, (yyvsp[0].dig).val);
-		}
-#line 1555 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 20:
-#line 322 "label.y" /* yacc.c:1646  */
-    {
-		  switch ((yyvsp[-1].num)) {
-		  case 'l':
-		    (yyval.expr) = new map_expr((yyvsp[-4].expr), lowercase);
-		    break;
-		  case 'u':
-		    (yyval.expr) = new map_expr((yyvsp[-4].expr), uppercase);
-		    break;
-		  case 'c':
-		    (yyval.expr) = new map_expr((yyvsp[-4].expr), capitalize);
-		    break;
-		  case 'r':
-		    (yyval.expr) = new map_expr((yyvsp[-4].expr), reverse_name);
-		    break;
-		  case 'a':
-		    (yyval.expr) = new map_expr((yyvsp[-4].expr), abbreviate_name);
-		    break;
-		  case 'y':
-		    (yyval.expr) = new extractor_expr((yyvsp[-4].expr), find_year, (yyvsp[-2].num));
-		    break;
-		  case 'n':
-		    (yyval.expr) = new extractor_expr((yyvsp[-4].expr), find_last_name, (yyvsp[-2].num));
-		    break;
-		  default:
-		    (yyval.expr) = (yyvsp[-4].expr);
-		    command_error("unknown function `%1'", char((yyvsp[-1].num)));
-		    break;
-		  }
-		}
-#line 1589 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 21:
-#line 353 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new truncate_expr((yyvsp[-2].expr), (yyvsp[0].num)); }
-#line 1595 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 22:
-#line 355 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new truncate_expr((yyvsp[-2].expr), -(yyvsp[0].num)); }
-#line 1601 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 23:
-#line 357 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new star_expr((yyvsp[-1].expr)); }
-#line 1607 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 24:
-#line 359 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = (yyvsp[-1].expr); }
-#line 1613 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 25:
-#line 361 "label.y" /* yacc.c:1646  */
-    { (yyval.expr) = new separator_expr((yyvsp[-1].expr)); }
-#line 1619 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 26:
-#line 366 "label.y" /* yacc.c:1646  */
-    { (yyval.num) = -1; }
-#line 1625 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 27:
-#line 368 "label.y" /* yacc.c:1646  */
-    { (yyval.num) = (yyvsp[0].num); }
-#line 1631 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 28:
-#line 373 "label.y" /* yacc.c:1646  */
-    { (yyval.num) = (yyvsp[0].num); }
-#line 1637 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 29:
-#line 375 "label.y" /* yacc.c:1646  */
-    { (yyval.num) = (yyvsp[-1].num)*10 + (yyvsp[0].num); }
-#line 1643 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 30:
-#line 380 "label.y" /* yacc.c:1646  */
-    { (yyval.dig).ndigits = 1; (yyval.dig).val = (yyvsp[0].num); }
-#line 1649 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 31:
-#line 382 "label.y" /* yacc.c:1646  */
-    { (yyval.dig).ndigits = (yyvsp[-1].dig).ndigits + 1; (yyval.dig).val = (yyvsp[-1].dig).val*10 + (yyvsp[0].num); }
-#line 1655 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 32:
-#line 388 "label.y" /* yacc.c:1646  */
-    { (yyval.num) = 0; }
-#line 1661 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 33:
-#line 390 "label.y" /* yacc.c:1646  */
-    { (yyval.num) = 1; }
-#line 1667 "label.cpp" /* yacc.c:1646  */
-    break;
-
-  case 34:
-#line 392 "label.y" /* yacc.c:1646  */
-    { (yyval.num) = -1; }
-#line 1673 "label.cpp" /* yacc.c:1646  */
-    break;
-
-
-#line 1677 "label.cpp" /* yacc.c:1646  */
-      default: break;
-    }
-  /* User semantic actions sometimes alter yychar, and that requires
-     that yytoken be updated with the new translation.  We take the
-     approach of translating immediately before every use of yytoken.
-     One alternative is translating here after every semantic action,
-     but that translation would be missed if the semantic action invokes
-     YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
-     if it invokes YYBACKUP.  In the case of YYABORT or YYACCEPT, an
-     incorrect destructor might then be invoked immediately.  In the
-     case of YYERROR or YYBACKUP, subsequent parser actions might lead
-     to an incorrect destructor call or verbose syntax error message
-     before the lookahead is translated.  */
-  YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
-
-  YYPOPSTACK (yylen);
-  yylen = 0;
-  YY_STACK_PRINT (yyss, yyssp);
-
-  *++yyvsp = yyval;
-
-  /* Now 'shift' the result of the reduction.  Determine what state
-     that goes to, based on the state we popped back to and the rule
-     number reduced by.  */
-
-  yyn = yyr1[yyn];
-
-  yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
-  if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
-    yystate = yytable[yystate];
-  else
-    yystate = yydefgoto[yyn - YYNTOKENS];
-
-  goto yynewstate;
-
-
-/*--------------------------------------.
-| yyerrlab -- here on detecting error.  |
-`--------------------------------------*/
-yyerrlab:
-  /* Make sure we have latest lookahead translation.  See comments at
-     user semantic actions for why this is necessary.  */
-  yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
-
-  /* If not already recovering from an error, report this error.  */
-  if (!yyerrstatus)
-    {
-      ++yynerrs;
-#if ! YYERROR_VERBOSE
-      yyerror (YY_("syntax error"));
-#else
-# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \
-                                        yyssp, yytoken)
-      {
-        char const *yymsgp = YY_("syntax error");
-        int yysyntax_error_status;
-        yysyntax_error_status = YYSYNTAX_ERROR;
-        if (yysyntax_error_status == 0)
-          yymsgp = yymsg;
-        else if (yysyntax_error_status == 1)
-          {
-            if (yymsg != yymsgbuf)
-              YYSTACK_FREE (yymsg);
-            yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
-            if (!yymsg)
-              {
-                yymsg = yymsgbuf;
-                yymsg_alloc = sizeof yymsgbuf;
-                yysyntax_error_status = 2;
-              }
-            else
-              {
-                yysyntax_error_status = YYSYNTAX_ERROR;
-                yymsgp = yymsg;
-              }
-          }
-        yyerror (yymsgp);
-        if (yysyntax_error_status == 2)
-          goto yyexhaustedlab;
-      }
-# undef YYSYNTAX_ERROR
-#endif
-    }
-
-
-
-  if (yyerrstatus == 3)
-    {
-      /* If just tried and failed to reuse lookahead token after an
-         error, discard it.  */
-
-      if (yychar <= YYEOF)
-        {
-          /* Return failure if at end of input.  */
-          if (yychar == YYEOF)
-            YYABORT;
-        }
-      else
-        {
-          yydestruct ("Error: discarding",
-                      yytoken, &yylval);
-          yychar = YYEMPTY;
-        }
-    }
-
-  /* Else will try to reuse lookahead token after shifting the error
-     token.  */
-  goto yyerrlab1;
-
-
-/*---------------------------------------------------.
-| yyerrorlab -- error raised explicitly by YYERROR.  |
-`---------------------------------------------------*/
-yyerrorlab:
-
-  /* Pacify compilers like GCC when the user code never invokes
-     YYERROR and the label yyerrorlab therefore never appears in user
-     code.  */
-  if (/*CONSTCOND*/ 0)
-     goto yyerrorlab;
-
-  /* Do not reclaim the symbols of the rule whose action triggered
-     this YYERROR.  */
-  YYPOPSTACK (yylen);
-  yylen = 0;
-  YY_STACK_PRINT (yyss, yyssp);
-  yystate = *yyssp;
-  goto yyerrlab1;
-
-
-/*-------------------------------------------------------------.
-| yyerrlab1 -- common code for both syntax error and YYERROR.  |
-`-------------------------------------------------------------*/
-yyerrlab1:
-  yyerrstatus = 3;      /* Each real token shifted decrements this.  */
-
-  for (;;)
-    {
-      yyn = yypact[yystate];
-      if (!yypact_value_is_default (yyn))
-        {
-          yyn += YYTERROR;
-          if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
-            {
-              yyn = yytable[yyn];
-              if (0 < yyn)
-                break;
-            }
-        }
-
-      /* Pop the current state because it cannot handle the error token.  */
-      if (yyssp == yyss)
-        YYABORT;
-
-
-      yydestruct ("Error: popping",
-                  yystos[yystate], yyvsp);
-      YYPOPSTACK (1);
-      yystate = *yyssp;
-      YY_STACK_PRINT (yyss, yyssp);
-    }
-
-  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-  *++yyvsp = yylval;
-  YY_IGNORE_MAYBE_UNINITIALIZED_END
-
-
-  /* Shift the error token.  */
-  YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
-
-  yystate = yyn;
-  goto yynewstate;
-
-
-/*-------------------------------------.
-| yyacceptlab -- YYACCEPT comes here.  |
-`-------------------------------------*/
-yyacceptlab:
-  yyresult = 0;
-  goto yyreturn;
-
-/*-----------------------------------.
-| yyabortlab -- YYABORT comes here.  |
-`-----------------------------------*/
-yyabortlab:
-  yyresult = 1;
-  goto yyreturn;
-
-#if !defined yyoverflow || YYERROR_VERBOSE
-/*-------------------------------------------------.
-| yyexhaustedlab -- memory exhaustion comes here.  |
-`-------------------------------------------------*/
-yyexhaustedlab:
-  yyerror (YY_("memory exhausted"));
-  yyresult = 2;
-  /* Fall through.  */
-#endif
-
-yyreturn:
-  if (yychar != YYEMPTY)
-    {
-      /* Make sure we have latest lookahead translation.  See comments at
-         user semantic actions for why this is necessary.  */
-      yytoken = YYTRANSLATE (yychar);
-      yydestruct ("Cleanup: discarding lookahead",
-                  yytoken, &yylval);
-    }
-  /* Do not reclaim the symbols of the rule whose action triggered
-     this YYABORT or YYACCEPT.  */
-  YYPOPSTACK (yylen);
-  YY_STACK_PRINT (yyss, yyssp);
-  while (yyssp != yyss)
-    {
-      yydestruct ("Cleanup: popping",
-                  yystos[*yyssp], yyvsp);
-      YYPOPSTACK (1);
-    }
-#ifndef yyoverflow
-  if (yyss != yyssa)
-    YYSTACK_FREE (yyss);
-#endif
-#if YYERROR_VERBOSE
-  if (yymsg != yymsgbuf)
-    YYSTACK_FREE (yymsg);
-#endif
-  return yyresult;
-}
-#line 395 "label.y" /* yacc.c:1906  */
-
-
-/* bison defines const to be empty unless __STDC__ is defined, which it
-isn't under cfront */
-
-#ifdef const
-#undef const
-#endif
-
-const char *spec_ptr;
-const char *spec_end;
-const char *spec_cur;
-
-static char uppercase_array[] = {
-  'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
-  'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
-  'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
-  'Y', 'Z',
-};
-  
-static char lowercase_array[] = {
-  'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
-  'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p',
-  'q', 'r', 's', 't', 'u', 'v', 'w', 'x',
-  'y', 'z',
-};
-
-int yylex()
-{
-  while (spec_ptr < spec_end && csspace(*spec_ptr))
-    spec_ptr++;
-  spec_cur = spec_ptr;
-  if (spec_ptr >= spec_end)
-    return 0;
-  unsigned char c = *spec_ptr++;
-  if (csalpha(c)) {
-    yylval.num = c;
-    return TOKEN_LETTER;
-  }
-  if (csdigit(c)) {
-    yylval.num = c - '0';
-    return TOKEN_DIGIT;
-  }
-  if (c == '\'') {
-    yylval.str.start = literals.length();
-    for (; spec_ptr < spec_end; spec_ptr++) {
-      if (*spec_ptr == '\'') {
-	if (++spec_ptr < spec_end && *spec_ptr == '\'')
-	  literals += '\'';
-	else {
-	  yylval.str.len = literals.length() - yylval.str.start;
-	  return TOKEN_LITERAL;
-	}
-      }
-      else
-	literals += *spec_ptr;
-    }
-    yylval.str.len = literals.length() - yylval.str.start;
-    return TOKEN_LITERAL;
-  }
-  return c;
-}
-
-int set_label_spec(const char *label_spec)
-{
-  spec_cur = spec_ptr = label_spec;
-  spec_end = strchr(label_spec, '\0');
-  literals.clear();
-  if (yyparse())
-    return 0;
-  delete parsed_label;
-  parsed_label = parse_result;
-  return 1;
-}
-
-int set_date_label_spec(const char *label_spec)
-{
-  spec_cur = spec_ptr = label_spec;
-  spec_end = strchr(label_spec, '\0');
-  literals.clear();
-  if (yyparse())
-    return 0;
-  delete parsed_date_label;
-  parsed_date_label = parse_result;
-  return 1;
-}
-
-int set_short_label_spec(const char *label_spec)
-{
-  spec_cur = spec_ptr = label_spec;
-  spec_end = strchr(label_spec, '\0');
-  literals.clear();
-  if (yyparse())
-    return 0;
-  delete parsed_short_label;
-  parsed_short_label = parse_result;
-  return 1;
-}
-
-void yyerror(const char *message)
-{
-  if (spec_cur < spec_end)
-    command_error("label specification %1 before `%2'", message, spec_cur);
-  else
-    command_error("label specification %1 at end of string",
-		  message, spec_cur);
-}
-
-void at_expr::evaluate(int tentative, const reference &ref,
-		       string &result, substring_position &)
-{
-  if (tentative)
-    ref.canonicalize_authors(result);
-  else {
-    const char *end, *start = ref.get_authors(&end);
-    if (start)
-      result.append(start, end - start);
-  }
-}
-
-void format_expr::evaluate(int tentative, const reference &ref,
-			   string &result, substring_position &)
-{
-  if (tentative)
-    return;
-  const label_info *lp = ref.get_label_ptr();
-  int num = lp == 0 ? ref.get_number() : lp->count;
-  if (type != '0')
-    result += format_serial(type, num + 1);
-  else {
-    const char *ptr = i_to_a(num + first_number);
-    int pad = width - strlen(ptr);
-    while (--pad >= 0)
-      result += '0';
-    result += ptr;
-  }
-}
-
-static const char *format_serial(char c, int n)
-{
-  assert(n > 0);
-  static char buf[128]; // more than enough.
-  switch (c) {
-  case 'i':
-  case 'I':
-    {
-      char *p = buf;
-      // troff uses z and w to represent 10000 and 5000 in Roman
-      // numerals; I can find no historical basis for this usage
-      const char *s = c == 'i' ? "zwmdclxvi" : "ZWMDCLXVI";
-      if (n >= 40000)
-	return i_to_a(n);
-      while (n >= 10000) {
-	*p++ = s[0];
-	n -= 10000;
-      }
-      for (int i = 1000; i > 0; i /= 10, s += 2) {
-	int m = n/i;
-	n -= m*i;
-	switch (m) {
-	case 3:
-	  *p++ = s[2];
-	  /* falls through */
-	case 2:
-	  *p++ = s[2];
-	  /* falls through */
-	case 1:
-	  *p++ = s[2];
-	  break;
-	case 4:
-	  *p++ = s[2];
-	  *p++ = s[1];
-	  break;
-	case 8:
-	  *p++ = s[1];
-	  *p++ = s[2];
-	  *p++ = s[2];
-	  *p++ = s[2];
-	  break;
-	case 7:
-	  *p++ = s[1];
-	  *p++ = s[2];
-	  *p++ = s[2];
-	  break;
-	case 6:
-	  *p++ = s[1];
-	  *p++ = s[2];
-	  break;
-	case 5:
-	  *p++ = s[1];
-	  break;
-	case 9:
-	  *p++ = s[2];
-	  *p++ = s[0];
-	}
-      }
-      *p = 0;
-      break;
-    }
-  case 'a':
-  case 'A':
-    {
-      char *p = buf;
-      // this is derived from troff/reg.c
-      while (n > 0) {
-	int d = n % 26;
-	if (d == 0)
-	  d = 26;
-	n -= d;
-	n /= 26;
-	*p++ = c == 'a' ? lowercase_array[d - 1] :
-			       uppercase_array[d - 1];
-      }
-      *p-- = 0;
-      // Reverse it.
-      char *q = buf;
-      while (q < p) {
-	char temp = *q;
-	*q = *p;
-	*p = temp;
-	--p;
-	++q;
-      }
-      break;
-    }
-  default:
-    assert(0);
-  }
-  return buf;
-}
-
-void field_expr::evaluate(int, const reference &ref,
-			  string &result, substring_position &)
-{
-  const char *end;
-  const char *start = ref.get_field(name, &end);
-  if (start) {
-    start = nth_field(number, start, &end);
-    if (start)
-      result.append(start, end - start);
-  }
-}
-
-void literal_expr::evaluate(int, const reference &,
-			    string &result, substring_position &)
-{
-  result += s;
-}
-
-analyzed_expr::analyzed_expr(expression *e)
-: unary_expr(e), flags(e ? e->analyze() : 0)
-{
-}
-
-void analyzed_expr::evaluate(int tentative, const reference &ref,
-			     string &result, substring_position &pos)
-{
-  if (expr)
-    expr->evaluate(tentative, ref, result, pos);
-}
-
-void star_expr::evaluate(int tentative, const reference &ref,
-			 string &result, substring_position &pos)
-{
-  const label_info *lp = ref.get_label_ptr();
-  if (!tentative
-      && (lp == 0 || lp->total > 1)
-      && expr)
-    expr->evaluate(tentative, ref, result, pos);
-}
-
-void separator_expr::evaluate(int tentative, const reference &ref,
-			      string &result, substring_position &pos)
-{
-  int start_length = result.length();
-  int is_first = pos.start < 0;
-  if (expr)
-    expr->evaluate(tentative, ref, result, pos);
-  if (is_first) {
-    pos.start = start_length;
-    pos.length = result.length() - start_length;
-  }
-}
-
-void map_expr::evaluate(int tentative, const reference &ref,
-			string &result, substring_position &)
-{
-  if (expr) {
-    string temp;
-    substring_position temp_pos;
-    expr->evaluate(tentative, ref, temp, temp_pos);
-    (*func)(temp.contents(), temp.contents() + temp.length(), result);
-  }
-}
-
-void extractor_expr::evaluate(int tentative, const reference &ref,
-			      string &result, substring_position &)
-{
-  if (expr) {
-    string temp;
-    substring_position temp_pos;
-    expr->evaluate(tentative, ref, temp, temp_pos);
-    const char *end, *start = (*func)(temp.contents(),
-				      temp.contents() + temp.length(),
-				      &end);
-    switch (part) {
-    case BEFORE:
-      if (start)
-	result.append(temp.contents(), start - temp.contents());
-      else
-	result += temp;
-      break;
-    case MATCH:
-      if (start)
-	result.append(start, end - start);
-      break;
-    case AFTER:
-      if (start)
-	result.append(end, temp.contents() + temp.length() - end);
-      break;
-    default:
-      assert(0);
-    }
-  }
-}
-
-static void first_part(int len, const char *ptr, const char *end,
-			  string &result)
-{
-  for (;;) {
-    const char *token_start = ptr;
-    if (!get_token(&ptr, end))
-      break;
-    const token_info *ti = lookup_token(token_start, ptr);
-    int counts = ti->sortify_non_empty(token_start, ptr);
-    if (counts && --len < 0)
-      break;
-    if (counts || ti->is_accent())
-      result.append(token_start, ptr - token_start);
-  }
-}
-
-static void last_part(int len, const char *ptr, const char *end,
-		      string &result)
-{
-  const char *start = ptr;
-  int count = 0;
-  for (;;) {
-    const char *token_start = ptr;
-    if (!get_token(&ptr, end))
-      break;
-    const token_info *ti = lookup_token(token_start, ptr);
-    if (ti->sortify_non_empty(token_start, ptr))
-      count++;
-  }
-  ptr = start;
-  int skip = count - len;
-  if (skip > 0) {
-    for (;;) {
-      const char *token_start = ptr;
-      if (!get_token(&ptr, end))
-	assert(0);
-      const token_info *ti = lookup_token(token_start, ptr);
-      if (ti->sortify_non_empty(token_start, ptr) && --skip < 0) {
-	ptr = token_start;
-	break;
-      }
-    }
-  }
-  first_part(len, ptr, end, result);
-}
-
-void truncate_expr::evaluate(int tentative, const reference &ref,
-			     string &result, substring_position &)
-{
-  if (expr) {
-    string temp;
-    substring_position temp_pos;
-    expr->evaluate(tentative, ref, temp, temp_pos);
-    const char *start = temp.contents();
-    const char *end = start + temp.length();
-    if (n > 0)
-      first_part(n, start, end, result);
-    else if (n < 0)
-      last_part(-n, start, end, result);
-  }
-}
-
-void alternative_expr::evaluate(int tentative, const reference &ref,
-				string &result, substring_position &pos)
-{
-  int start_length = result.length();
-  if (expr1)
-    expr1->evaluate(tentative, ref, result, pos);
-  if (result.length() == start_length && expr2)
-    expr2->evaluate(tentative, ref, result, pos);
-}
-
-void list_expr::evaluate(int tentative, const reference &ref,
-			 string &result, substring_position &pos)
-{
-  if (expr1)
-    expr1->evaluate(tentative, ref, result, pos);
-  if (expr2)
-    expr2->evaluate(tentative, ref, result, pos);
-}
-
-void substitute_expr::evaluate(int tentative, const reference &ref,
-			       string &result, substring_position &pos)
-{
-  int start_length = result.length();
-  if (expr1)
-    expr1->evaluate(tentative, ref, result, pos);
-  if (result.length() > start_length && result[result.length() - 1] == '-') {
-    // ought to see if pos covers the -
-    result.set_length(result.length() - 1);
-    if (expr2)
-      expr2->evaluate(tentative, ref, result, pos);
-  }
-}
-
-void conditional_expr::evaluate(int tentative, const reference &ref,
-				string &result, substring_position &pos)
-{
-  string temp;
-  substring_position temp_pos;
-  if (expr1)
-    expr1->evaluate(tentative, ref, temp, temp_pos);
-  if (temp.length() > 0) {
-    if (expr2)
-      expr2->evaluate(tentative, ref, result, pos);
-  }
-  else {
-    if (expr3)
-      expr3->evaluate(tentative, ref, result, pos);
-  }
-}
-
-void reference::pre_compute_label()
-{
-  if (parsed_label != 0
-      && (parsed_label->analyze() & expression::CONTAINS_VARIABLE)) {
-    label.clear();
-    substring_position temp_pos;
-    parsed_label->evaluate(1, *this, label, temp_pos);
-    label_ptr = lookup_label(label);
-  }
-}
-
-void reference::compute_label()
-{
-  label.clear();
-  if (parsed_label)
-    parsed_label->evaluate(0, *this, label, separator_pos);
-  if (short_label_flag && parsed_short_label)
-    parsed_short_label->evaluate(0, *this, short_label, short_separator_pos);
-  if (date_as_label) {
-    string new_date;
-    if (parsed_date_label) {
-      substring_position temp_pos;
-      parsed_date_label->evaluate(0, *this, new_date, temp_pos);
-    }
-    set_date(new_date);
-  }
-  if (label_ptr)
-    label_ptr->count += 1;
-}
-
-void reference::immediate_compute_label()
-{
-  if (label_ptr)
-    label_ptr->total = 2;	// force use of disambiguator
-  compute_label();
-}
-
-int reference::merge_labels(reference **v, int n, label_type type,
-			    string &result)
-{
-  if (abbreviate_label_ranges)
-    return merge_labels_by_number(v, n, type, result);
-  else
-    return merge_labels_by_parts(v, n, type, result);
-}
-
-int reference::merge_labels_by_number(reference **v, int n, label_type type,
-				      string &result)
-{
-  if (n <= 1)
-    return 0;
-  int num = get_number();
-  // Only merge three or more labels.
-  if (v[0]->get_number() != num + 1
-      || v[1]->get_number() != num + 2)
-    return 0;
-  int i;
-  for (i = 2; i < n; i++)
-    if (v[i]->get_number() != num + i + 1)
-      break;
-  result = get_label(type);
-  result += label_range_indicator;
-  result += v[i - 1]->get_label(type);
-  return i;
-}
-
-const substring_position &reference::get_separator_pos(label_type type) const
-{
-  if (type == SHORT_LABEL && short_label_flag)
-    return short_separator_pos;
-  else
-    return separator_pos;
-}
-
-const string &reference::get_label(label_type type) const
-{
-  if (type == SHORT_LABEL && short_label_flag)
-    return short_label; 
-  else
-    return label;
-}
-
-int reference::merge_labels_by_parts(reference **v, int n, label_type type,
-				     string &result)
-{
-  if (n <= 0)
-    return 0;
-  const string &lb = get_label(type);
-  const substring_position &sp = get_separator_pos(type);
-  if (sp.start < 0
-      || sp.start != v[0]->get_separator_pos(type).start 
-      || memcmp(lb.contents(), v[0]->get_label(type).contents(),
-		sp.start) != 0)
-    return 0;
-  result = lb;
-  int i = 0;
-  do {
-    result += separate_label_second_parts;
-    const substring_position &s = v[i]->get_separator_pos(type);
-    int sep_end_pos = s.start + s.length;
-    result.append(v[i]->get_label(type).contents() + sep_end_pos,
-		  v[i]->get_label(type).length() - sep_end_pos);
-  } while (++i < n
-	   && sp.start == v[i]->get_separator_pos(type).start
-	   && memcmp(lb.contents(), v[i]->get_label(type).contents(),
-		     sp.start) == 0);
-  return i;
-}
-
-string label_pool;
-
-label_info::label_info(const string &s)
-: start(label_pool.length()), length(s.length()), count(0), total(1)
-{
-  label_pool += s;
-}
-
-static label_info **label_table = 0;
-static int label_table_size = 0;
-static int label_table_used = 0;
-
-label_info *lookup_label(const string &label)
-{
-  if (label_table == 0) {
-    label_table = new label_info *[17];
-    label_table_size = 17;
-    for (int i = 0; i < 17; i++)
-      label_table[i] = 0;
-  }
-  unsigned h = hash_string(label.contents(), label.length()) % label_table_size;
-  label_info **ptr;
-  for (ptr = label_table + h;
-       *ptr != 0;
-       (ptr == label_table)
-       ? (ptr = label_table + label_table_size - 1)
-       : ptr--)
-    if ((*ptr)->length == label.length()
-	&& memcmp(label_pool.contents() + (*ptr)->start, label.contents(),
-		  label.length()) == 0) {
-      (*ptr)->total += 1;
-      return *ptr;
-    }
-  label_info *result = *ptr = new label_info(label);
-  if (++label_table_used * 2 > label_table_size) {
-    // Rehash the table.
-    label_info **old_table = label_table;
-    int old_size = label_table_size;
-    label_table_size = next_size(label_table_size);
-    label_table = new label_info *[label_table_size];
-    int i;
-    for (i = 0; i < label_table_size; i++)
-      label_table[i] = 0;
-    for (i = 0; i < old_size; i++)
-      if (old_table[i]) {
-	h = hash_string(label_pool.contents() + old_table[i]->start,
-			old_table[i]->length);
-	label_info **p;
-	for (p = label_table + (h % label_table_size);
-	     *p != 0;
-	     (p == label_table)
-	     ? (p = label_table + label_table_size - 1)
-	     : --p)
-	    ;
-	*p = old_table[i];
-	}
-    a_delete old_table;
-  }
-  return result;
-}
-
-void clear_labels()
-{
-  for (int i = 0; i < label_table_size; i++) {
-    delete label_table[i];
-    label_table[i] = 0;
-  }
-  label_table_used = 0;
-  label_pool.clear();
-}
-
-static void consider_authors(reference **start, reference **end, int i);
-
-void compute_labels(reference **v, int n)
-{
-  if (parsed_label
-      && (parsed_label->analyze() & expression::CONTAINS_AT)
-      && sort_fields.length() >= 2
-      && sort_fields[0] == 'A'
-      && sort_fields[1] == '+')
-    consider_authors(v, v + n, 0);
-  for (int i = 0; i < n; i++)
-    v[i]->compute_label();
-}
-
-
-/* A reference with a list of authors <A0,A1,...,AN> _needs_ author i
-where 0 <= i <= N if there exists a reference with a list of authors
-<B0,B1,...,BM> such that <A0,A1,...,AN> != <B0,B1,...,BM> and M >= i
-and Aj = Bj for 0 <= j < i. In this case if we can't say ``A0,
-A1,...,A(i-1) et al'' because this would match both <A0,A1,...,AN> and
-<B0,B1,...,BM>.  If a reference needs author i we only have to call
-need_author(j) for some j >= i such that the reference also needs
-author j. */
-
-/* This function handles 2 tasks:
-determine which authors are needed (cannot be elided with et al.);
-determine which authors can have only last names in the labels.
-
-References >= start and < end have the same first i author names.
-Also they're sorted by A+. */
-
-static void consider_authors(reference **start, reference **end, int i)
-{
-  if (start >= end)
-    return;
-  reference **p = start;
-  if (i >= (*p)->get_nauthors()) {
-    for (++p; p < end && i >= (*p)->get_nauthors(); p++)
-      ;
-    if (p < end && i > 0) {
-      // If we have an author list <A B C> and an author list <A B C D>,
-      // then both lists need C.
-      for (reference **q = start; q < end; q++)
-	(*q)->need_author(i - 1);
-    }
-    start = p;
-  }
-  while (p < end) {
-    reference **last_name_start = p;
-    reference **name_start = p;
-    for (++p;
-	 p < end && i < (*p)->get_nauthors()
-	 && same_author_last_name(**last_name_start, **p, i);
-	 p++) {
-      if (!same_author_name(**name_start, **p, i)) {
-	consider_authors(name_start, p, i + 1);
-	name_start = p;
-      }
-    }
-    consider_authors(name_start, p, i + 1);
-    if (last_name_start == name_start) {
-      for (reference **q = last_name_start; q < p; q++)
-	(*q)->set_last_name_unambiguous(i);
-    }
-    // If we have an author list <A B C D> and <A B C E>, then the lists
-    // need author D and E respectively.
-    if (name_start > start || p < end) {
-      for (reference **q = last_name_start; q < p; q++)
-	(*q)->need_author(i);
-    }
-  }
-}
-
-int same_author_last_name(const reference &r1, const reference &r2, int n)
-{
-  const char *ae1;
-  const char *as1 = r1.get_sort_field(0, n, 0, &ae1);
-  const char *ae2;
-  const char *as2 = r2.get_sort_field(0, n, 0, &ae2);
-  if (!as1 && !as2) return 1;	// they are the same
-  if (!as1 || !as2) return 0;
-  return ae1 - as1 == ae2 - as2 && memcmp(as1, as2, ae1 - as1) == 0;
-}
-
-int same_author_name(const reference &r1, const reference &r2, int n)
-{
-  const char *ae1;
-  const char *as1 = r1.get_sort_field(0, n, -1, &ae1);
-  const char *ae2;
-  const char *as2 = r2.get_sort_field(0, n, -1, &ae2);
-  if (!as1 && !as2) return 1;	// they are the same
-  if (!as1 || !as2) return 0;
-  return ae1 - as1 == ae2 - as2 && memcmp(as1, as2, ae1 - as1) == 0;
-}
-
-
-void int_set::set(int i)
-{
-  assert(i >= 0);
-  int bytei = i >> 3;
-  if (bytei >= v.length()) {
-    int old_length = v.length();
-    v.set_length(bytei + 1);
-    for (int j = old_length; j <= bytei; j++)
-      v[j] = 0;
-  }
-  v[bytei] |= 1 << (i & 7);
-}
-
-int int_set::get(int i) const
-{
-  assert(i >= 0);
-  int bytei = i >> 3;
-  return bytei >= v.length() ? 0 : (v[bytei] & (1 << (i & 7))) != 0;
-}
-
-void reference::set_last_name_unambiguous(int i)
-{
-  last_name_unambiguous.set(i);
-}
-
-void reference::need_author(int n)
-{
-  if (n > last_needed_author)
-    last_needed_author = n;
-}
-
-const char *reference::get_authors(const char **end) const
-{
-  if (!computed_authors) {
-    ((reference *)this)->computed_authors = 1;
-    string &result = ((reference *)this)->authors;
-    int na = get_nauthors();
-    result.clear();
-    for (int i = 0; i < na; i++) {
-      if (last_name_unambiguous.get(i)) {
-	const char *e, *start = get_author_last_name(i, &e);
-	assert(start != 0);
-	result.append(start, e - start);
-      }
-      else {
-	const char *e, *start = get_author(i, &e);
-	assert(start != 0);
-	result.append(start, e - start);
-      }
-      if (i == last_needed_author
-	  && et_al.length() > 0
-	  && et_al_min_elide > 0
-	  && last_needed_author + et_al_min_elide < na
-	  && na >= et_al_min_total) {
-	result += et_al;
-	break;
-      }
-      if (i < na - 1) {
-	if (na == 2)
-	  result += join_authors_exactly_two;
-	else if (i < na - 2)
-	  result += join_authors_default;
-	else
-	  result += join_authors_last_two;
-      }
-    }
-  }
-  const char *start = authors.contents();
-  *end = start + authors.length();
-  return start;
-}
-
-int reference::get_nauthors() const
-{
-  if (nauthors < 0) {
-    const char *dummy;
-    int na;
-    for (na = 0; get_author(na, &dummy) != 0; na++)
-      ;
-    ((reference *)this)->nauthors = na;
-  }
-  return nauthors;
-}
diff --git a/src/preproc/refer/label.y b/src/preproc/refer/label.y
index 7d0708a..850c3a3 100644
--- a/src/preproc/refer/label.y
+++ b/src/preproc/refer/label.y
@@ -246,7 +246,7 @@ string literals;
 
 expr:
 	optional_conditional
-		{ parse_result = ($1 ? new analyzed_expr($1) : 0); }
+		{ if (parse_result) delete parse_result; parse_result = ($1 ? new analyzed_expr($1) : 0); }
 	;
 
 conditional:
diff --git a/src/preproc/tbl/table.cpp b/src/preproc/tbl/table.cpp
index f43fe7d..01b5162 100644
--- a/src/preproc/tbl/table.cpp
+++ b/src/preproc/tbl/table.cpp
@@ -858,7 +858,7 @@ void single_line_entry::simple_print(int dont_move)
   printfs("\\s[\\n[" LINESIZE_REG "]]" "\\D'l |\\n[%1]u",
 	  column_divide_reg(end_col+1));
   if (double_vrule_on_right) {
-    prints(double_vrule_on_left == 1 ? "+" : "-");
+    prints(double_vrule_on_right == 1 ? "+" : "-");
     prints(HALF_DOUBLE_LINE_SEP);
   }
   prints("0'\\s0");
@@ -903,7 +903,7 @@ void double_line_entry::simple_print(int dont_move)
 	  "\\D'l |\\n[%1]u",
 	  column_divide_reg(start_col));
   if (double_vrule_on_right) {
-    prints(double_vrule_on_left == 1 ? "+" : "-");
+    prints(double_vrule_on_right == 1 ? "+" : "-");
     prints(HALF_DOUBLE_LINE_SEP);
   }
   prints(" 0'");
diff --git a/src/roff/troff/dictionary.cpp b/src/roff/troff/dictionary.cpp
index 538531a..2dececa 100644
--- a/src/roff/troff/dictionary.cpp
+++ b/src/roff/troff/dictionary.cpp
@@ -41,6 +41,11 @@ dictionary::dictionary(int n) : size(n), used(0), threshold(0.5), factor(1.5)
   table = new association[n];
 }
 
+dictionary::~dictionary()
+{
+  a_delete table;
+}
+ 
 // see Knuth, Sorting and Searching, p518, Algorithm L
 // we can't use double-hashing because we want a remove function
 
diff --git a/src/roff/troff/dictionary.h b/src/roff/troff/dictionary.h
index 422a58e..d5ffff8 100644
--- a/src/roff/troff/dictionary.h
+++ b/src/roff/troff/dictionary.h
@@ -47,6 +47,7 @@ class dictionary {
   void rehash(int);
 public:
   dictionary(int);
+  ~dictionary();
   void *lookup(symbol s, void *v=0); // returns value associated with key
   void *lookup(const char *);
   // if second parameter not NULL, value will be replaced
diff --git a/src/roff/troff/env.cpp b/src/roff/troff/env.cpp
index 9fbd592..2a0fe8c 100644
--- a/src/roff/troff/env.cpp
+++ b/src/roff/troff/env.cpp
@@ -430,6 +430,9 @@ void environment::space_newline()
     w->next = new width_list(sw, ssw);
   if (line != 0 && line->merge_space(x, sw, ssw)) {
     width_total += x;
+    if (w->next)
+      delete w->next;
+    delete w;
     return;
   }
   add_node(new word_space_node(x, get_fill_color(), w));
@@ -1243,8 +1246,10 @@ void override_sizes()
   int *sizes = new int[n];
   int i = 0;
   char *buf = read_string();
-  if (!buf)
+  if (!buf) {
+    a_delete sizes;
     return;
+  }
   char *p = strtok(buf, " \t");
   for (;;) {
     if (!p)
@@ -1260,6 +1265,8 @@ void override_sizes()
       // fall through
     default:
       warning(WARN_RANGE, "bad size range `%1'", p);
+      a_delete sizes;
+      a_delete buf;
       return;
     }
     if (i + 2 > n) {
@@ -1276,6 +1283,8 @@ void override_sizes()
     p = strtok(0, " \t");
   }
   font_size::init_size_table(sizes);
+  a_delete sizes;
+  a_delete buf;
 }
 
 void space_size()
diff --git a/src/roff/troff/input.cpp b/src/roff/troff/input.cpp
index 9594f07..f2c8f68 100644
--- a/src/roff/troff/input.cpp
+++ b/src/roff/troff/input.cpp
@@ -7693,6 +7693,11 @@ static void parse_output_page_list(char *p)
   }
   if (*p != '\0') {
     error("bad output page list");
+    while (output_page_list) {
+      page_range *l = output_page_list;
+      output_page_list = output_page_list->next;
+      delete l;
+    }
     output_page_list = 0;
   }
 }
diff --git a/src/roff/troff/mtsm.cpp b/src/roff/troff/mtsm.cpp
index 0fd2d33..dcf31ad 100644
--- a/src/roff/troff/mtsm.cpp
+++ b/src/roff/troff/mtsm.cpp
@@ -374,8 +374,9 @@ void mtsm::push_state(statem *n)
 {
   if (is_html) {
 #if defined(DEBUGGING)
-    if (debug_state)
+    if (debug_state) {
       fprintf(stderr, "--> state %d pushed\n", n->issue_no) ; fflush(stderr);
+    }
 #endif
     sp = new stack(n, sp);
   }
@@ -385,8 +386,9 @@ void mtsm::pop_state()
 {
   if (is_html) {
 #if defined(DEBUGGING)
-    if (debug_state)
+    if (debug_state) {
       fprintf(stderr, "--> state popped\n") ; fflush(stderr);
+    }
 #endif
     if (sp == 0)
       fatal("empty state machine stack");
diff --git a/src/utils/addftinfo/addftinfo.cpp b/src/utils/addftinfo/addftinfo.cpp
index 88095bf..a5afbfb 100644
--- a/src/utils/addftinfo/addftinfo.cpp
+++ b/src/utils/addftinfo/addftinfo.cpp
@@ -125,6 +125,7 @@ int main(int argc, char **argv)
   if (infp == 0)
     fatal("can't open `%1': %2", font, strerror(errno));
   convert_font(param, infp, stdout);
+  fclose(infp);
   return 0;
 }
 
diff --git a/src/utils/hpftodit/hpftodit.cpp b/src/utils/hpftodit/hpftodit.cpp
index 069608d..7bde0b6 100644
--- a/src/utils/hpftodit/hpftodit.cpp
+++ b/src/utils/hpftodit/hpftodit.cpp
@@ -140,6 +140,7 @@ typedef unsigned int uint32;
 class File {
 public:
   File(const char *);
+  ~File();
   void skip(int n);
   byte get_byte();
   uint16 get_uint16();
@@ -412,6 +413,7 @@ File::File(const char *s)
     fatal("not a regular file");
   buf_ = new unsigned char[sb.st_size];
   long nread = read(fd, buf_, sb.st_size);
+  close(fd);
   if (nread < 0)
     fatal("read error: %1", strerror(errno));
   if (nread != sb.st_size)
@@ -420,6 +422,11 @@ File::File(const char *s)
   end_ = buf_ + sb.st_size;
 }
 
+File::~File()
+{
+    a_delete buf_;
+}
+
 void
 File::skip(int n)
 {
@@ -868,10 +875,15 @@ output_charset(const int tfm_type)
 	printf("%s", charcode_name_table[charcode]->name);
       else if (!all_flag)
 	continue;
-      else if (tfm_type == MSL)
-	printf("%s", hp_msl_to_ucode_name(charcode));
-      else
-	printf("%s", unicode_to_ucode_name(charcode));
+      else if (tfm_type == MSL) {
+	char *name = hp_msl_to_ucode_name(charcode);
+	printf("%s", name);
+	a_delete name;
+      } else {
+	char *name = unicode_to_ucode_name(charcode);
+	printf("%s", name);
+	a_delete name;
+      }
 
       printf("\t%d,%d",
 	     scale(char_table[i].width), scale(char_table[i].ascent));
@@ -1383,6 +1395,7 @@ read_map(const char *file, const int tfm_type)
     }
     if (strlen(ptr) != 4) {
       error("bad Unicode value (%1)", ptr);
+      fclose(fp);
       return 0;
     }
 
@@ -1399,6 +1412,8 @@ read_map(const char *file, const int tfm_type)
       return 0;
     }
 
+    char *name = NULL;
+
     ptr = strtok(NULL, " \n\t");
     if (!ptr) {					// groff name
       error("missing name(s)");
@@ -1407,7 +1422,7 @@ read_map(const char *file, const int tfm_type)
     }
     // leave decomposed Unicode values alone
     else if (is_uname(ptr) && !is_decomposed(ptr))
-      ptr = unicode_to_ucode_name(strtol(ptr + 1, &nonum, 16));
+      ptr = name = unicode_to_ucode_name(strtol(ptr + 1, &nonum, 16));
 
     if (size_t(n) >= charcode_name_table_size) {
       size_t old_size = charcode_name_table_size;
@@ -1428,6 +1443,9 @@ read_map(const char *file, const int tfm_type)
 	break;
       charcode_name_table[n] = new name_list(ptr, charcode_name_table[n]);
     }
+
+    if (name != NULL)
+      a_delete name;
   }
   fclose(fp);
   return 1;
diff --git a/src/utils/indxbib/indxbib.cpp b/src/utils/indxbib/indxbib.cpp
index ee568d8..d9d4c3e 100644
--- a/src/utils/indxbib/indxbib.cpp
+++ b/src/utils/indxbib/indxbib.cpp
@@ -70,6 +70,7 @@ struct word_list {
   char *str;
   int len;
   word_list(const char *, int, word_list *);
+  ~word_list();
 };
 
 table_entry *hash_table;
@@ -314,6 +315,7 @@ int main(int argc, char **argv)
   if (unlink(temp_index_file) < 0)
     fatal("can't unlink temporary index file: %1", strerror(errno));
 #endif /* not HAVE_RENAME */
+  a_delete index_file;
   temp_index_file = 0;
   return failed;
 }
@@ -372,6 +374,11 @@ word_list::word_list(const char *s, int n, word_list *p)
   memcpy(str, s, n);
 }
 
+word_list::~word_list()
+{
+  a_delete str;
+}
+
 static void read_common_words_file()
 {
   if (n_ignore_words <= 0)
diff --git a/src/utils/tfmtodit/tfmtodit.cpp b/src/utils/tfmtodit/tfmtodit.cpp
index 6fef258..c5c8865 100644
--- a/src/utils/tfmtodit/tfmtodit.cpp
+++ b/src/utils/tfmtodit/tfmtodit.cpp
@@ -421,6 +421,7 @@ int gf::load(const char *file)
   }
   if (getc(fp) != pre || getc(fp) != gf_id_byte) {
     error("bad gf file");
+    fclose(fp);
     return 0;
   }
   int n = getc(fp);
@@ -537,11 +538,13 @@ int gf::load(const char *file)
       break;
     }
   }
+  fclose(fp);
   if (!got_an_adjustment)
     warning("no adjustment specials found in gf file");
   return 1;
  eof:
   error("unexpected end of file");
+  fclose(fp);
   return 0;
 }
 
@@ -590,12 +593,17 @@ struct char_list {
   char *ch;
   char_list *next;
   char_list(const char *, char_list * = 0);
+  ~char_list();
 };
 
 char_list::char_list(const char *s, char_list *p) : ch(strsave(s)), next(p)
 {
 }
 
+char_list::~char_list()
+{
+  a_delete ch;
+}
 
 int read_map(const char *file, char_list **table)
 {
-- 
2.17.2