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To: vim_dev@googlegroups.com
Subject: Patch 7.3.281
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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------------

Patch 7.3.281
Problem:    After using "expand('%:8')" the buffer name is changed.
Solution:   Make a copy of the file name before shortening it.
Files:	    src/eval.c


*** ../vim-7.3.280/src/eval.c	2011-08-10 12:38:02.000000000 +0200
--- src/eval.c	2011-08-17 15:12:39.000000000 +0200
***************
*** 23205,23210 ****
--- 23205,23211 ----
      int		c;
      int		has_fullname = 0;
  #ifdef WIN3264
+     char_u	*fname_start = *fnamep;
      int		has_shortname = 0;
  #endif
  
***************
*** 23379,23402 ****
      }
  
  #ifdef WIN3264
!     /* Check shortname after we have done 'heads' and before we do 'tails'
       */
      if (has_shortname)
      {
! 	pbuf = NULL;
! 	/* Copy the string if it is shortened by :h */
! 	if (*fnamelen < (int)STRLEN(*fnamep))
  	{
  	    p = vim_strnsave(*fnamep, *fnamelen);
! 	    if (p == 0)
  		return -1;
  	    vim_free(*bufp);
  	    *bufp = *fnamep = p;
  	}
  
  	/* Split into two implementations - makes it easier.  First is where
! 	 * there isn't a full name already, second is where there is.
! 	 */
  	if (!has_fullname && !vim_isAbsName(*fnamep))
  	{
  	    if (shortpath_for_partial(fnamep, bufp, fnamelen) == FAIL)
--- 23380,23404 ----
      }
  
  #ifdef WIN3264
!     /*
!      * Handle ":8" after we have done 'heads' and before we do 'tails'.
       */
      if (has_shortname)
      {
! 	/* Copy the string if it is shortened by :h and when it wasn't copied
! 	 * yet, because we are going to change it in place.  Avoids changing
! 	 * the buffer name for "%:8". */
! 	if (*fnamelen < (int)STRLEN(*fnamep) || *fnamep == fname_start)
  	{
  	    p = vim_strnsave(*fnamep, *fnamelen);
! 	    if (p == NULL)
  		return -1;
  	    vim_free(*bufp);
  	    *bufp = *fnamep = p;
  	}
  
  	/* Split into two implementations - makes it easier.  First is where
! 	 * there isn't a full name already, second is where there is. */
  	if (!has_fullname && !vim_isAbsName(*fnamep))
  	{
  	    if (shortpath_for_partial(fnamep, bufp, fnamelen) == FAIL)
***************
*** 23404,23421 ****
  	}
  	else
  	{
! 	    int		l;
  
! 	    /* Simple case, already have the full-name
  	     * Nearly always shorter, so try first time. */
- 	    l = *fnamelen;
  	    if (get_short_pathname(fnamep, bufp, &l) == FAIL)
  		return -1;
  
  	    if (l == 0)
  	    {
! 		/* Couldn't find the filename.. search the paths.
! 		 */
  		l = *fnamelen;
  		if (shortpath_for_invalid_fname(fnamep, bufp, &l) == FAIL)
  		    return -1;
--- 23406,23421 ----
  	}
  	else
  	{
! 	    int		l = *fnamelen;
  
! 	    /* Simple case, already have the full-name.
  	     * Nearly always shorter, so try first time. */
  	    if (get_short_pathname(fnamep, bufp, &l) == FAIL)
  		return -1;
  
  	    if (l == 0)
  	    {
! 		/* Couldn't find the filename, search the paths. */
  		l = *fnamelen;
  		if (shortpath_for_invalid_fname(fnamep, bufp, &l) == FAIL)
  		    return -1;
*** ../vim-7.3.280/src/version.c	2011-08-10 18:36:49.000000000 +0200
--- src/version.c	2011-08-17 15:21:41.000000000 +0200
***************
*** 711,712 ****
--- 711,714 ----
  {   /* Add new patch number below this line */
+ /**/
+     281,
  /**/

-- 
Kisses may last for as much as, but no more than, five minutes.
		[real standing law in Iowa, United States of America]

 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
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