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To: vim_dev@googlegroups.com
Subject: Patch 7.3.1129
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
------------

Patch 7.3.1129
Problem:    Can't see what pattern in syntax highlighting is slow.
Solution:   Add the ":syntime" command.
Files:	    src/structs.h, src/syntax.c, src/ex_cmds.h, src/ex_docmd.c,
	    src/proto/syntax.pro, src/ex_cmds2.c, src/proto/ex_cmds2.pro,
	    runtime/doc/syntax.txt


*** ../vim-7.3.1128/src/structs.h	2013-05-19 19:16:25.000000000 +0200
--- src/structs.h	2013-06-06 12:24:08.000000000 +0200
***************
*** 1206,1211 ****
--- 1206,1223 ----
  typedef struct qf_info_S qf_info_T;
  #endif
  
+ #ifdef FEAT_RELTIME
+ /*
+  * Used for :syntime: timing of executing a syntax pattern.
+  */
+ typedef struct {
+     proftime_T	total;		/* total time used */
+     proftime_T	slowest;	/* time of slowest call */
+     long	count;		/* nr of times used */
+     long	match;		/* nr of times matched */
+ } syn_time_T;
+ #endif
+ 
  /*
   * These are items normally related to a buffer.  But when using ":ownsyntax"
   * a window may have its own instance.
***************
*** 1230,1235 ****
--- 1242,1250 ----
      long	b_syn_sync_linebreaks;	/* offset for multi-line pattern */
      char_u	*b_syn_linecont_pat;	/* line continuation pattern */
      regprog_T	*b_syn_linecont_prog;	/* line continuation program */
+ #ifdef FEAT_RELTIME
+     syn_time_T  b_syn_linecont_time;
+ #endif
      int		b_syn_linecont_ic;	/* ignore-case flag for above */
      int		b_syn_topgrp;		/* for ":syntax include" */
  # ifdef FEAT_CONCEAL
*** ../vim-7.3.1128/src/syntax.c	2013-05-06 04:21:35.000000000 +0200
--- src/syntax.c	2013-06-06 12:37:55.000000000 +0200
***************
*** 153,158 ****
--- 153,161 ----
      short	 sp_syn_match_id;	/* highlight group ID of pattern */
      char_u	*sp_pattern;		/* regexp to match, pattern */
      regprog_T	*sp_prog;		/* regexp to match, program */
+ #ifdef FEAT_RELTIME
+     syn_time_T	 sp_time;
+ #endif
      int		 sp_ic;			/* ignore-case flag for sp_prog */
      short	 sp_off_flags;		/* see below */
      int		 sp_offsets[SPO_COUNT];	/* offsets */
***************
*** 269,274 ****
--- 272,279 ----
   */
  static int keepend_level = -1;
  
+ static char msg_no_items[] = N_("No Syntax items defined for this buffer");
+ 
  /*
   * For the current state we need to remember more than just the idx.
   * When si_m_endpos.lnum is 0, the items other than si_idx are unknown.
***************
*** 395,400 ****
--- 400,420 ----
  static int in_id_list __ARGS((stateitem_T *item, short *cont_list, struct sp_syn *ssp, int contained));
  static int push_current_state __ARGS((int idx));
  static void pop_current_state __ARGS((void));
+ #ifdef FEAT_RELTIME
+ static void syn_clear_time __ARGS((syn_time_T *tt));
+ static void syntime_clear __ARGS((void));
+ #ifdef __BORLANDC__
+ static int _RTLENTRYF syn_compare_syntime __ARGS((const void *v1, const void *v2));
+ #else
+ static int syn_compare_syntime __ARGS((const void *v1, const void *v2));
+ #endif
+ static void syntime_report __ARGS((void));
+ static int syn_time_on = FALSE;
+ # define IF_SYN_TIME(p) (p)
+ #else
+ # define IF_SYN_TIME(p) NULL
+ typedef int syn_time_T;
+ #endif
  
  static void syn_stack_apply_changes_block __ARGS((synblock_T *block, buf_T *buf));
  static void find_endpos __ARGS((int idx, lpos_T *startpos, lpos_T *m_endpos, lpos_T *hl_endpos, long *flagsp, lpos_T *end_endpos, int *end_idx, reg_extmatch_T *start_ext));
***************
*** 406,412 ****
  static void syn_add_end_off __ARGS((lpos_T *result, regmmatch_T *regmatch, synpat_T *spp, int idx, int extra));
  static void syn_add_start_off __ARGS((lpos_T *result, regmmatch_T *regmatch, synpat_T *spp, int idx, int extra));
  static char_u *syn_getcurline __ARGS((void));
! static int syn_regexec __ARGS((regmmatch_T *rmp, linenr_T lnum, colnr_T col));
  static int check_keyword_id __ARGS((char_u *line, int startcol, int *endcol, long *flags, short **next_list, stateitem_T *cur_si, int *ccharp));
  static void syn_cmd_case __ARGS((exarg_T *eap, int syncing));
  static void syn_cmd_spell __ARGS((exarg_T *eap, int syncing));
--- 426,432 ----
  static void syn_add_end_off __ARGS((lpos_T *result, regmmatch_T *regmatch, synpat_T *spp, int idx, int extra));
  static void syn_add_start_off __ARGS((lpos_T *result, regmmatch_T *regmatch, synpat_T *spp, int idx, int extra));
  static char_u *syn_getcurline __ARGS((void));
! static int syn_regexec __ARGS((regmmatch_T *rmp, linenr_T lnum, colnr_T col, syn_time_T *st));
  static int check_keyword_id __ARGS((char_u *line, int startcol, int *endcol, long *flags, short **next_list, stateitem_T *cur_si, int *ccharp));
  static void syn_cmd_case __ARGS((exarg_T *eap, int syncing));
  static void syn_cmd_spell __ARGS((exarg_T *eap, int syncing));
***************
*** 977,983 ****
      {
  	regmatch.rmm_ic = syn_block->b_syn_linecont_ic;
  	regmatch.regprog = syn_block->b_syn_linecont_prog;
! 	return syn_regexec(&regmatch, lnum, (colnr_T)0);
      }
      return FALSE;
  }
--- 997,1004 ----
      {
  	regmatch.rmm_ic = syn_block->b_syn_linecont_ic;
  	regmatch.regprog = syn_block->b_syn_linecont_prog;
! 	return syn_regexec(&regmatch, lnum, (colnr_T)0,
! 				IF_SYN_TIME(&syn_block->b_syn_linecont_time));
      }
      return FALSE;
  }
***************
*** 2068,2075 ****
  
  			    regmatch.rmm_ic = spp->sp_ic;
  			    regmatch.regprog = spp->sp_prog;
! 			    if (!syn_regexec(&regmatch, current_lnum,
! 							     (colnr_T)lc_col))
  			    {
  				/* no match in this line, try another one */
  				spp->sp_startcol = MAXCOL;
--- 2089,2098 ----
  
  			    regmatch.rmm_ic = spp->sp_ic;
  			    regmatch.regprog = spp->sp_prog;
! 			    if (!syn_regexec(&regmatch,
! 					     current_lnum,
! 					     (colnr_T)lc_col,
! 				             IF_SYN_TIME(&spp->sp_time)))
  			    {
  				/* no match in this line, try another one */
  				spp->sp_startcol = MAXCOL;
***************
*** 2950,2956 ****
  
  	    regmatch.rmm_ic = spp->sp_ic;
  	    regmatch.regprog = spp->sp_prog;
! 	    if (syn_regexec(&regmatch, startpos->lnum, lc_col))
  	    {
  		if (best_idx == -1 || regmatch.startpos[0].col
  					      < best_regmatch.startpos[0].col)
--- 2973,2980 ----
  
  	    regmatch.rmm_ic = spp->sp_ic;
  	    regmatch.regprog = spp->sp_prog;
! 	    if (syn_regexec(&regmatch, startpos->lnum, lc_col,
! 						  IF_SYN_TIME(&spp->sp_time)))
  	    {
  		if (best_idx == -1 || regmatch.startpos[0].col
  					      < best_regmatch.startpos[0].col)
***************
*** 2981,2987 ****
  		lc_col = 0;
  	    regmatch.rmm_ic = spp_skip->sp_ic;
  	    regmatch.regprog = spp_skip->sp_prog;
! 	    if (syn_regexec(&regmatch, startpos->lnum, lc_col)
  		    && regmatch.startpos[0].col
  					     <= best_regmatch.startpos[0].col)
  	    {
--- 3005,3012 ----
  		lc_col = 0;
  	    regmatch.rmm_ic = spp_skip->sp_ic;
  	    regmatch.regprog = spp_skip->sp_prog;
! 	    if (syn_regexec(&regmatch, startpos->lnum, lc_col,
! 					      IF_SYN_TIME(&spp_skip->sp_time))
  		    && regmatch.startpos[0].col
  					     <= best_regmatch.startpos[0].col)
  	    {
***************
*** 3229,3241 ****
   * Returns TRUE when there is a match.
   */
      static int
! syn_regexec(rmp, lnum, col)
      regmmatch_T	*rmp;
      linenr_T	lnum;
      colnr_T	col;
  {
      rmp->rmm_maxcol = syn_buf->b_p_smc;
!     if (vim_regexec_multi(rmp, syn_win, syn_buf, lnum, col, NULL) > 0)
      {
  	rmp->startpos[0].lnum += lnum;
  	rmp->endpos[0].lnum += lnum;
--- 3254,3290 ----
   * Returns TRUE when there is a match.
   */
      static int
! syn_regexec(rmp, lnum, col, st)
      regmmatch_T	*rmp;
      linenr_T	lnum;
      colnr_T	col;
+     syn_time_T  *st;
  {
+     int r;
+ #ifdef FEAT_RELTIME
+     proftime_T	pt;
+ 
+     if (syn_time_on)
+ 	profile_start(&pt);
+ #endif
+ 
      rmp->rmm_maxcol = syn_buf->b_p_smc;
!     r = vim_regexec_multi(rmp, syn_win, syn_buf, lnum, col, NULL);
! 
! #ifdef FEAT_RELTIME
!     if (syn_time_on)
!     {
! 	profile_end(&pt);
! 	profile_add(&st->total, &pt);
! 	if (profile_cmp(&pt, &st->slowest) < 0)
! 	    st->slowest = pt;
! 	++st->count;
! 	if (r > 0)
! 	    ++st->match;
!     }
! #endif
! 
!     if (r > 0)
      {
  	rmp->startpos[0].lnum += lnum;
  	rmp->endpos[0].lnum += lnum;
***************
*** 3769,3775 ****
  
      if (!syntax_present(curwin))
      {
! 	MSG(_("No Syntax items defined for this buffer"));
  	return;
      }
  
--- 3818,3824 ----
  
      if (!syntax_present(curwin))
      {
! 	MSG(_(msg_no_items));
  	return;
      }
  
***************
*** 5609,5614 ****
--- 5658,5666 ----
      if (ci->sp_prog == NULL)
  	return NULL;
      ci->sp_ic = curwin->w_s->b_syn_ic;
+ #ifdef FEAT_RELTIME
+     syn_clear_time(&ci->sp_time);
+ #endif
  
      /*
       * Check for a match, highlight or region offset.
***************
*** 5783,5790 ****
  		cpo_save = p_cpo;
  		p_cpo = (char_u *)"";
  		curwin->w_s->b_syn_linecont_prog =
! 			    vim_regcomp(curwin->w_s->b_syn_linecont_pat, RE_MAGIC);
  		p_cpo = cpo_save;
  
  		if (curwin->w_s->b_syn_linecont_prog == NULL)
  		{
--- 5835,5845 ----
  		cpo_save = p_cpo;
  		p_cpo = (char_u *)"";
  		curwin->w_s->b_syn_linecont_prog =
! 		       vim_regcomp(curwin->w_s->b_syn_linecont_pat, RE_MAGIC);
  		p_cpo = cpo_save;
+ #ifdef FEAT_RELTIME
+ 		syn_clear_time(&curwin->w_s->b_syn_linecont_time);
+ #endif
  
  		if (curwin->w_s->b_syn_linecont_prog == NULL)
  		{
***************
*** 6471,6476 ****
--- 6526,6704 ----
  }
  #endif
  
+ #ifdef FEAT_RELTIME
+ /*
+  * ":syntime".
+  */
+     void
+ ex_syntime(eap)
+     exarg_T	*eap;
+ {
+     if (STRCMP(eap->arg, "on") == 0)
+ 	syn_time_on = TRUE;
+     else if (STRCMP(eap->arg, "off") == 0)
+ 	syn_time_on = FALSE;
+     else if (STRCMP(eap->arg, "clear") == 0)
+ 	syntime_clear();
+     else if (STRCMP(eap->arg, "report") == 0)
+ 	syntime_report();
+     else
+ 	EMSG2(_(e_invarg2), eap->arg);
+ }
+ 
+     static void
+ syn_clear_time(st)
+     syn_time_T *st;
+ {
+     profile_zero(&st->total);
+     profile_zero(&st->slowest);
+     st->count = 0;
+     st->match = 0;
+ }
+ 
+ /*
+  * Clear the syntax timing for the current buffer.
+  */
+     static void
+ syntime_clear()
+ {
+     int		idx;
+     synpat_T	*spp;
+ 
+     if (!syntax_present(curwin))
+     {
+ 	MSG(_(msg_no_items));
+ 	return;
+     }
+     for (idx = 0; idx < curwin->w_s->b_syn_patterns.ga_len; ++idx)
+     {
+ 	spp = &(SYN_ITEMS(curwin->w_s)[idx]);
+ 	syn_clear_time(&spp->sp_time);
+     }
+ }
+ 
+ typedef struct
+ {
+     proftime_T	total;
+     int		count;
+     int		match;
+     proftime_T	slowest;
+     proftime_T	average;
+     int		id;
+     char_u	*pattern;
+ } time_entry_T;
+ 
+     static int
+ #ifdef __BORLANDC__
+ _RTLENTRYF
+ #endif
+ syn_compare_syntime(v1, v2)
+     const void	*v1;
+     const void	*v2;
+ {
+     const time_entry_T	*s1 = v1;
+     const time_entry_T	*s2 = v2;
+ 
+     return profile_cmp(&s1->total, &s2->total);
+ }
+ 
+ /*
+  * Clear the syntax timing for the current buffer.
+  */
+     static void
+ syntime_report()
+ {
+     int		idx;
+     synpat_T	*spp;
+     proftime_T	tm;
+     int		len;
+     proftime_T	total_total;
+     int		total_count = 0;
+     garray_T    ga;
+     time_entry_T *p;
+ 
+     if (!syntax_present(curwin))
+     {
+ 	MSG(_(msg_no_items));
+ 	return;
+     }
+ 
+     ga_init2(&ga, sizeof(time_entry_T), 50);
+     profile_zero(&total_total);
+     for (idx = 0; idx < curwin->w_s->b_syn_patterns.ga_len; ++idx)
+     {
+ 	spp = &(SYN_ITEMS(curwin->w_s)[idx]);
+ 	if (spp->sp_time.count > 0)
+ 	{
+ 	    ga_grow(&ga, 1);
+ 	    p = ((time_entry_T *)ga.ga_data) + ga.ga_len;
+ 	    p->total = spp->sp_time.total;
+ 	    profile_add(&total_total, &spp->sp_time.total);
+ 	    p->count = spp->sp_time.count;
+ 	    p->match = spp->sp_time.match;
+ 	    total_count += spp->sp_time.count;
+ 	    p->slowest = spp->sp_time.slowest;
+ # ifdef FEAT_FLOAT
+ 	    profile_divide(&spp->sp_time.total, spp->sp_time.count, &tm);
+ 	    p->average = tm;
+ # endif
+ 	    p->id = spp->sp_syn.id;
+ 	    p->pattern = spp->sp_pattern;
+ 	    ++ga.ga_len;
+ 	}
+     }
+ 
+     /* sort on total time */
+     qsort(ga.ga_data, (size_t)ga.ga_len, sizeof(time_entry_T), syn_compare_syntime);
+ 
+     MSG_PUTS_TITLE(_("  TOTAL      COUNT  MATCH   SLOWEST     AVERAGE   NAME               PATTERN"));
+     MSG_PUTS("\n");
+     for (idx = 0; idx < ga.ga_len && !got_int; ++idx)
+     {
+ 	spp = &(SYN_ITEMS(curwin->w_s)[idx]);
+ 	p = ((time_entry_T *)ga.ga_data) + idx;
+ 
+ 	MSG_PUTS(profile_msg(&p->total));
+ 	MSG_PUTS(" "); /* make sure there is always a separating space */
+ 	msg_advance(13);
+ 	msg_outnum(p->count);
+ 	MSG_PUTS(" ");
+ 	msg_advance(20);
+ 	msg_outnum(p->match);
+ 	MSG_PUTS(" ");
+ 	msg_advance(26);
+ 	MSG_PUTS(profile_msg(&p->slowest));
+ 	MSG_PUTS(" ");
+ 	msg_advance(38);
+ # ifdef FEAT_FLOAT
+ 	MSG_PUTS(profile_msg(&p->average));
+ 	MSG_PUTS(" ");
+ # endif
+ 	msg_advance(50);
+ 	msg_outtrans(HL_TABLE()[p->id - 1].sg_name);
+ 	MSG_PUTS(" ");
+ 
+ 	msg_advance(69);
+ 	if (Columns < 80)
+ 	    len = 20; /* will wrap anyway */
+ 	else
+ 	    len = Columns - 70;
+ 	if (len > (int)STRLEN(p->pattern))
+ 	    len = (int)STRLEN(p->pattern);
+ 	msg_outtrans_len(p->pattern, len);
+ 	MSG_PUTS("\n");
+     }
+     if (!got_int)
+     {
+ 	MSG_PUTS("\n");
+ 	MSG_PUTS(profile_msg(&total_total));
+ 	msg_advance(13);
+ 	msg_outnum(total_count);
+ 	MSG_PUTS("\n");
+     }
+ }
+ #endif
+ 
  #endif /* FEAT_SYN_HL */
  
  /**************************************
*** ../vim-7.3.1128/src/ex_cmds.h	2013-05-17 16:39:59.000000000 +0200
--- src/ex_cmds.h	2013-06-05 22:20:35.000000000 +0200
***************
*** 925,930 ****
--- 925,932 ----
  			TRLBAR|CMDWIN),
  EX(CMD_syntax,		"syntax",	ex_syntax,
  			EXTRA|NOTRLCOM|CMDWIN),
+ EX(CMD_syntime,		"syntime",	ex_syntime,
+ 			WORD1|TRLBAR|CMDWIN),
  EX(CMD_syncbind,	"syncbind",	ex_syncbind,
  			TRLBAR),
  EX(CMD_t,		"t",		ex_copymove,
*** ../vim-7.3.1128/src/ex_docmd.c	2013-06-02 19:22:05.000000000 +0200
--- src/ex_docmd.c	2013-06-05 22:21:30.000000000 +0200
***************
*** 242,247 ****
--- 242,250 ----
  # define ex_syntax		ex_ni
  # define ex_ownsyntax		ex_ni
  #endif
+ #if !defined(FEAT_SYN_HL) || !defined(FEAT_RELTIME)
+ # define ex_syntime		ex_ni
+ #endif
  #ifndef FEAT_SPELL
  # define ex_spell		ex_ni
  # define ex_mkspell		ex_ni
*** ../vim-7.3.1128/src/proto/syntax.pro	2010-08-15 21:57:28.000000000 +0200
--- src/proto/syntax.pro	2013-06-05 22:59:09.000000000 +0200
***************
*** 19,24 ****
--- 19,25 ----
  int syn_get_sub_char __ARGS((void));
  int syn_get_stack_item __ARGS((int i));
  int syn_get_foldlevel __ARGS((win_T *wp, long lnum));
+ void ex_syntime __ARGS((exarg_T *eap));
  void init_highlight __ARGS((int both, int reset));
  int load_colors __ARGS((char_u *name));
  void do_highlight __ARGS((char_u *line, int forceit, int init));
*** ../vim-7.3.1128/src/ex_cmds2.c	2013-05-06 04:50:26.000000000 +0200
--- src/ex_cmds2.c	2013-06-06 12:14:52.000000000 +0200
***************
*** 958,963 ****
--- 958,993 ----
  
  # endif  /* FEAT_PROFILE || FEAT_RELTIME */
  
+ #if defined(FEAT_SYN_HL) && defined(FEAT_RELTIME) && defined(FEAT_FLOAT)
+ # if defined(HAVE_MATH_H)
+ #  include <math.h>
+ # endif
+ 
+ /*
+  * Divide the time "tm" by "count" and store in "tm2".
+  */
+     void
+ profile_divide(tm, count, tm2)
+     proftime_T  *tm;
+     proftime_T  *tm2;
+     int		count;
+ {
+     if (count == 0)
+ 	profile_zero(tm2);
+     else
+     {
+ # ifdef WIN3264
+ 	tm2->QuadPart = tm->QuadPart / count;
+ # else
+ 	double usec = (tm->tv_sec * 1000000.0 + tm->tv_usec) / count;
+ 
+ 	tm2->tv_sec = floor(usec / 1000000.0);
+ 	tm2->tv_usec = round(usec - (tm2->tv_sec * 1000000.0));
+ # endif
+     }
+ }
+ #endif
+ 
  # if defined(FEAT_PROFILE) || defined(PROTO)
  /*
   * Functions for profiling.
***************
*** 1050,1056 ****
   */
      int
  profile_cmp(tm1, tm2)
!     proftime_T *tm1, *tm2;
  {
  # ifdef WIN3264
      return (int)(tm2->QuadPart - tm1->QuadPart);
--- 1080,1086 ----
   */
      int
  profile_cmp(tm1, tm2)
!     const proftime_T *tm1, *tm2;
  {
  # ifdef WIN3264
      return (int)(tm2->QuadPart - tm1->QuadPart);
*** ../vim-7.3.1128/src/proto/ex_cmds2.pro	2012-06-29 12:57:03.000000000 +0200
--- src/proto/ex_cmds2.pro	2013-06-06 12:14:57.000000000 +0200
***************
*** 17,28 ****
  void profile_setlimit __ARGS((long msec, proftime_T *tm));
  int profile_passed_limit __ARGS((proftime_T *tm));
  void profile_zero __ARGS((proftime_T *tm));
  void profile_add __ARGS((proftime_T *tm, proftime_T *tm2));
  void profile_self __ARGS((proftime_T *self, proftime_T *total, proftime_T *children));
  void profile_get_wait __ARGS((proftime_T *tm));
  void profile_sub_wait __ARGS((proftime_T *tm, proftime_T *tma));
  int profile_equal __ARGS((proftime_T *tm1, proftime_T *tm2));
! int profile_cmp __ARGS((proftime_T *tm1, proftime_T *tm2));
  void ex_profile __ARGS((exarg_T *eap));
  char_u *get_profile_name __ARGS((expand_T *xp, int idx));
  void set_context_in_profile_cmd __ARGS((expand_T *xp, char_u *arg));
--- 17,29 ----
  void profile_setlimit __ARGS((long msec, proftime_T *tm));
  int profile_passed_limit __ARGS((proftime_T *tm));
  void profile_zero __ARGS((proftime_T *tm));
+ void profile_divide __ARGS((proftime_T *tm, int count, proftime_T *tm2));
  void profile_add __ARGS((proftime_T *tm, proftime_T *tm2));
  void profile_self __ARGS((proftime_T *self, proftime_T *total, proftime_T *children));
  void profile_get_wait __ARGS((proftime_T *tm));
  void profile_sub_wait __ARGS((proftime_T *tm, proftime_T *tma));
  int profile_equal __ARGS((proftime_T *tm1, proftime_T *tm2));
! int profile_cmp __ARGS((const proftime_T *tm1, const proftime_T *tm2));
  void ex_profile __ARGS((exarg_T *eap));
  char_u *get_profile_name __ARGS((expand_T *xp, int idx));
  void set_context_in_profile_cmd __ARGS((expand_T *xp, char_u *arg));
*** ../vim-7.3.1128/runtime/doc/syntax.txt	2010-08-15 21:57:12.000000000 +0200
--- runtime/doc/syntax.txt	2013-06-06 13:00:36.000000000 +0200
***************
*** 37,42 ****
--- 37,43 ----
  15. Highlighting tags		|tag-highlight|
  16. Window-local syntax		|:ownsyntax|
  17. Color xterms		|xterm-color|
+ 18. When syntax is slow		|:syntime|
  
  {Vi does not have any of these commands}
  
***************
*** 4754,4757 ****
--- 5087,5146 ----
  that Setup / Font / Enable Bold is NOT enabled.
  (info provided by John Love-Jensen <eljay@Adobe.COM>)
  
+ 
+ ==============================================================================
+ 18. When syntax is slow						*:syntime*
+ 
+ This is aimed at authors of a syntax file.
+ 
+ If your syntax causes redrawing to be slow, here are a few hints on making it
+ faster.  To see slowness switch on some features that usually interfere, such
+ as 'relativenumber' and |folding|.
+ 
+ To find out what patterns are consuming most time, get an overview with this
+ sequence: >
+ 	:syntime on
+ 	[ redraw the text at least once with CTRL-L ]
+ 	:syntime report
+ 
+ This will display a list of syntax patterns that were used, sorted by the time
+ it took to match them against the text.
+ 
+ :syntime on		Start measuring syntax times.  This will add some
+ 			overhead to compute the time spent on syntax pattern
+ 			matching.
+ 
+ :syntime off		Stop measuring syntax times.
+ 
+ :syntime clear		Set all the counters to zero, restart measuring.
+ 
+ :syntime report		Show the syntax items used since ":syntime on" in the
+ 			current window.  Use a wider display to see more of
+ 			the output.
+ 
+ 			The list is sorted by total time. The columns are:
+ 			TOTAL		Total time in seconds spent on
+ 					matching this pattern.
+ 			COUNT		Number of times the pattern was used.
+ 			MATCH		Number of times the pattern actually
+ 					matched
+ 			SLOWEST		The longest time for one try.
+ 			AVERAGE		The average time for one try.
+ 			NAME		Name of the syntax item.  Note that
+ 					this is not unique.
+ 			PATTERN		The pattern being used.
+ 
+ Pattern matching gets slow when it has to try many alternatives.  Try to
+ include as much literal text as possible to reduce the number of ways a
+ pattern does NOT match.
+ 
+ When using the "\@<=" and "\@<!" items, add a maximum size to avoid trying at
+ all positions in the current and previous line.  For example, if the item is
+ literal text specify the size of that text (in bytes):
+ 
+ "<\@<=span"   	Matches "span" in "<span".  This tries matching with "<" in
+ 		many places.
+ "<\@1<=span"  	Matches the same, but only tries one byte before "span".
+ 
+ 
   vim:tw=78:sw=4:ts=8:ft=help:norl:
*** ../vim-7.3.1128/src/version.c	2013-06-05 21:42:49.000000000 +0200
--- src/version.c	2013-06-06 13:04:25.000000000 +0200
***************
*** 730,731 ****
--- 730,733 ----
  {   /* Add new patch number below this line */
+ /**/
+     1129,
  /**/

-- 
From "know your smileys":
 :'-D	Laughing so much that they're crying

 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///