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To: vim_dev@googlegroups.com
Subject: Patch 7.4.515
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
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------------

Patch 7.4.515
Problem:    In a help buffer the global 'foldmethod' is used.  (Paul Marshall)
Solution:   Reset 'foldmethod' when starting to edit a help file.  Move the
	    code to a separate function.
Files:	    src/ex_cmds.c


*** ../vim-7.4.514/src/ex_cmds.c	2014-09-19 22:23:22.398467500 +0200
--- src/ex_cmds.c	2014-11-12 19:23:48.357576278 +0100
***************
*** 34,39 ****
--- 34,40 ----
      _RTLENTRYF
  #endif
  	help_compare __ARGS((const void *s1, const void *s2));
+ static void prepare_help_buffer __ARGS((void));
  
  /*
   * ":ascii" and "ga".
***************
*** 3531,3601 ****
  	oldbuf = (flags & ECMD_OLDBUF);
      }
  
-     if ((flags & ECMD_SET_HELP) || keep_help_flag)
-     {
- 	char_u	*p;
- 
- 	curbuf->b_help = TRUE;
- #ifdef FEAT_QUICKFIX
- 	set_string_option_direct((char_u *)"buftype", -1,
- 				     (char_u *)"help", OPT_FREE|OPT_LOCAL, 0);
- #endif
- 
- 	/*
- 	 * Always set these options after jumping to a help tag, because the
- 	 * user may have an autocommand that gets in the way.
- 	 * Accept all ASCII chars for keywords, except ' ', '*', '"', '|', and
- 	 * latin1 word characters (for translated help files).
- 	 * Only set it when needed, buf_init_chartab() is some work.
- 	 */
- 	p =
- #ifdef EBCDIC
- 		(char_u *)"65-255,^*,^|,^\"";
- #else
- 		(char_u *)"!-~,^*,^|,^\",192-255";
- #endif
- 	if (STRCMP(curbuf->b_p_isk, p) != 0)
- 	{
- 	    set_string_option_direct((char_u *)"isk", -1, p,
- 						       OPT_FREE|OPT_LOCAL, 0);
- 	    check_buf_options(curbuf);
- 	    (void)buf_init_chartab(curbuf, FALSE);
- 	}
- 
- 	curbuf->b_p_ts = 8;		/* 'tabstop' is 8 */
- 	curwin->w_p_list = FALSE;	/* no list mode */
- 
- 	curbuf->b_p_ma = FALSE;		/* not modifiable */
- 	curbuf->b_p_bin = FALSE;	/* reset 'bin' before reading file */
- 	curwin->w_p_nu = 0;		/* no line numbers */
- 	curwin->w_p_rnu = 0;		/* no relative line numbers */
- 	RESET_BINDING(curwin);		/* no scroll or cursor binding */
- #ifdef FEAT_ARABIC
- 	curwin->w_p_arab = FALSE;	/* no arabic mode */
- #endif
- #ifdef FEAT_RIGHTLEFT
- 	curwin->w_p_rl  = FALSE;	/* help window is left-to-right */
- #endif
- #ifdef FEAT_FOLDING
- 	curwin->w_p_fen = FALSE;	/* No folding in the help window */
- #endif
- #ifdef FEAT_DIFF
- 	curwin->w_p_diff = FALSE;	/* No 'diff' */
- #endif
- #ifdef FEAT_SPELL
- 	curwin->w_p_spell = FALSE;	/* No spell checking */
- #endif
- 
  #ifdef FEAT_AUTOCMD
! 	buf = curbuf;
  #endif
! 	set_buflisted(FALSE);
      }
      else
      {
- #ifdef FEAT_AUTOCMD
- 	buf = curbuf;
- #endif
  	/* Don't make a buffer listed if it's a help buffer.  Useful when
  	 * using CTRL-O to go back to a help file. */
  	if (!curbuf->b_help)
--- 3532,3546 ----
  	oldbuf = (flags & ECMD_OLDBUF);
      }
  
  #ifdef FEAT_AUTOCMD
!     buf = curbuf;
  #endif
!     if ((flags & ECMD_SET_HELP) || keep_help_flag)
!     {
! 	prepare_help_buffer();
      }
      else
      {
  	/* Don't make a buffer listed if it's a help buffer.  Useful when
  	 * using CTRL-O to go back to a help file. */
  	if (!curbuf->b_help)
***************
*** 6222,6227 ****
--- 6167,6237 ----
  }
  
  /*
+  * Called when starting to edit a buffer for a help file.
+  */
+     static void
+ prepare_help_buffer()
+ {
+     char_u	*p;
+ 
+     curbuf->b_help = TRUE;
+ #ifdef FEAT_QUICKFIX
+     set_string_option_direct((char_u *)"buftype", -1,
+ 				     (char_u *)"help", OPT_FREE|OPT_LOCAL, 0);
+ #endif
+ 
+     /*
+      * Always set these options after jumping to a help tag, because the
+      * user may have an autocommand that gets in the way.
+      * Accept all ASCII chars for keywords, except ' ', '*', '"', '|', and
+      * latin1 word characters (for translated help files).
+      * Only set it when needed, buf_init_chartab() is some work.
+      */
+     p =
+ #ifdef EBCDIC
+ 	    (char_u *)"65-255,^*,^|,^\"";
+ #else
+ 	    (char_u *)"!-~,^*,^|,^\",192-255";
+ #endif
+     if (STRCMP(curbuf->b_p_isk, p) != 0)
+     {
+ 	set_string_option_direct((char_u *)"isk", -1, p, OPT_FREE|OPT_LOCAL, 0);
+ 	check_buf_options(curbuf);
+ 	(void)buf_init_chartab(curbuf, FALSE);
+     }
+ 
+     /* Don't use the global foldmethod.*/
+     set_string_option_direct((char_u *)"fdm", -1, (char_u *)"manual",
+ 						       OPT_FREE|OPT_LOCAL, 0);
+ 
+     curbuf->b_p_ts = 8;		/* 'tabstop' is 8 */
+     curwin->w_p_list = FALSE;	/* no list mode */
+ 
+     curbuf->b_p_ma = FALSE;		/* not modifiable */
+     curbuf->b_p_bin = FALSE;	/* reset 'bin' before reading file */
+     curwin->w_p_nu = 0;		/* no line numbers */
+     curwin->w_p_rnu = 0;		/* no relative line numbers */
+     RESET_BINDING(curwin);		/* no scroll or cursor binding */
+ #ifdef FEAT_ARABIC
+     curwin->w_p_arab = FALSE;	/* no arabic mode */
+ #endif
+ #ifdef FEAT_RIGHTLEFT
+     curwin->w_p_rl  = FALSE;	/* help window is left-to-right */
+ #endif
+ #ifdef FEAT_FOLDING
+     curwin->w_p_fen = FALSE;	/* No folding in the help window */
+ #endif
+ #ifdef FEAT_DIFF
+     curwin->w_p_diff = FALSE;	/* No 'diff' */
+ #endif
+ #ifdef FEAT_SPELL
+     curwin->w_p_spell = FALSE;	/* No spell checking */
+ #endif
+ 
+     set_buflisted(FALSE);
+ }
+ 
+ /*
   * After reading a help file: May cleanup a help buffer when syntax
   * highlighting is not used.
   */
*** ../vim-7.4.514/src/version.c	2014-11-12 18:59:17.602000656 +0100
--- src/version.c	2014-11-12 19:27:25.471182666 +0100
***************
*** 743,744 ****
--- 743,746 ----
  {   /* Add new patch number below this line */
+ /**/
+     515,
  /**/

-- 
If "R" is Reverse, how come "D" is FORWARD?

 /// 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    ///