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+To: vim_dev@googlegroups.com
+Subject: Patch 7.4.247
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.4.247
+Problem: When passing input to system() there is no way to keep NUL and
+ NL characters separate.
+Solution: Optionally use a list for the system() input. (ZyX)
+Files: runtime/doc/eval.txt, src/eval.c
+
+
+*** ../vim-7.4.246/runtime/doc/eval.txt 2014-04-02 22:16:59.995482236 +0200
+--- runtime/doc/eval.txt 2014-04-05 18:47:12.907153201 +0200
+***************
+*** 5951,5960 ****
+
+ system({expr} [, {input}]) *system()* *E677*
+ Get the output of the shell command {expr}.
+! When {input} is given, this string is written to a file and
+! passed as stdin to the command. The string is written as-is,
+! you need to take care of using the correct line separators
+! yourself. Pipes are not used.
+ Note: Use |shellescape()| or |::S| with |expand()| or
+ |fnamemodify()| to escape special characters in a command
+ argument. Newlines in {expr} may cause the command to fail.
+--- 5964,5980 ----
+
+ system({expr} [, {input}]) *system()* *E677*
+ Get the output of the shell command {expr}.
+!
+! When {input} is given and is a string this string is written
+! to a file and passed as stdin to the command. The string is
+! written as-is, you need to take care of using the correct line
+! separators yourself.
+! If {input} is given and is a |List| it is written to the file
+! in a way |writefile()| does with {binary} set to "b" (i.e.
+! with a newline between each list item with newlines inside
+! list items converted to NULs).
+! Pipes are not used.
+!
+ Note: Use |shellescape()| or |::S| with |expand()| or
+ |fnamemodify()| to escape special characters in a command
+ argument. Newlines in {expr} may cause the command to fail.
+*** ../vim-7.4.246/src/eval.c 2014-04-02 22:17:00.003482236 +0200
+--- src/eval.c 2014-04-05 18:47:50.971153284 +0200
+***************
+*** 836,841 ****
+--- 836,842 ----
+ static int searchpair_cmn __ARGS((typval_T *argvars, pos_T *match_pos));
+ static int search_cmn __ARGS((typval_T *argvars, pos_T *match_pos, int *flagsp));
+ static void setwinvar __ARGS((typval_T *argvars, typval_T *rettv, int off));
++ static int write_list __ARGS((FILE *fd, list_T *list, int binary));
+
+
+ #ifdef EBCDIC
+***************
+*** 18267,18280 ****
+ EMSG2(_(e_notopen), infile);
+ goto done;
+ }
+! p = get_tv_string_buf_chk(&argvars[1], buf);
+! if (p == NULL)
+ {
+! fclose(fd);
+! goto done; /* type error; errmsg already given */
+ }
+- if (fwrite(p, STRLEN(p), 1, fd) != 1)
+- err = TRUE;
+ if (fclose(fd) != 0)
+ err = TRUE;
+ if (err)
+--- 18268,18289 ----
+ EMSG2(_(e_notopen), infile);
+ goto done;
+ }
+! if (argvars[1].v_type == VAR_LIST)
+ {
+! if (write_list(fd, argvars[1].vval.v_list, TRUE) == FAIL)
+! err = TRUE;
+! }
+! else
+! {
+! p = get_tv_string_buf_chk(&argvars[1], buf);
+! if (p == NULL)
+! {
+! fclose(fd);
+! goto done; /* type error; errmsg already given */
+! }
+! if (fwrite(p, STRLEN(p), 1, fd) != 1)
+! err = TRUE;
+ }
+ if (fclose(fd) != 0)
+ err = TRUE;
+ if (err)
+***************
+*** 19173,19178 ****
+--- 19182,19230 ----
+ }
+
+ /*
++ * Write list of strings to file
++ */
++ static int
++ write_list(fd, list, binary)
++ FILE *fd;
++ list_T *list;
++ int binary;
++ {
++ listitem_T *li;
++ int c;
++ int ret = OK;
++ char_u *s;
++
++ for (li = list->lv_first; li != NULL; li = li->li_next)
++ {
++ for (s = get_tv_string(&li->li_tv); *s != NUL; ++s)
++ {
++ if (*s == '\n')
++ c = putc(NUL, fd);
++ else
++ c = putc(*s, fd);
++ if (c == EOF)
++ {
++ ret = FAIL;
++ break;
++ }
++ }
++ if (!binary || li->li_next != NULL)
++ if (putc('\n', fd) == EOF)
++ {
++ ret = FAIL;
++ break;
++ }
++ if (ret == FAIL)
++ {
++ EMSG(_(e_write));
++ break;
++ }
++ }
++ return ret;
++ }
++
++ /*
+ * "writefile()" function
+ */
+ static void
+***************
+*** 19183,19192 ****
+ int binary = FALSE;
+ char_u *fname;
+ FILE *fd;
+- listitem_T *li;
+- char_u *s;
+ int ret = 0;
+- int c;
+
+ if (check_restricted() || check_secure())
+ return;
+--- 19235,19241 ----
+***************
+*** 19213,19245 ****
+ }
+ else
+ {
+! for (li = argvars[0].vval.v_list->lv_first; li != NULL;
+! li = li->li_next)
+! {
+! for (s = get_tv_string(&li->li_tv); *s != NUL; ++s)
+! {
+! if (*s == '\n')
+! c = putc(NUL, fd);
+! else
+! c = putc(*s, fd);
+! if (c == EOF)
+! {
+! ret = -1;
+! break;
+! }
+! }
+! if (!binary || li->li_next != NULL)
+! if (putc('\n', fd) == EOF)
+! {
+! ret = -1;
+! break;
+! }
+! if (ret < 0)
+! {
+! EMSG(_(e_write));
+! break;
+! }
+! }
+ fclose(fd);
+ }
+
+--- 19262,19269 ----
+ }
+ else
+ {
+! if (write_list(fd, argvars[0].vval.v_list, binary) == FAIL)
+! ret = -1;
+ fclose(fd);
+ }
+
+*** ../vim-7.4.246/src/version.c 2014-04-05 12:02:20.751100138 +0200
+--- src/version.c 2014-04-05 18:49:24.411153488 +0200
+***************
+*** 736,737 ****
+--- 736,739 ----
+ { /* Add new patch number below this line */
++ /**/
++ 247,
+ /**/
+
+--
+Time is an illusion. Lunchtime doubly so.
+ -- Ford Prefect, in Douglas Adams'
+ "The Hitchhiker's Guide to the Galaxy"
+
+ /// 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 ///