To: vim-dev@vim.org
Subject: Patch 7.1.186
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
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------------

Patch 7.1.186
Problem:    "expand('<afile>')" returns a bogus value after changing
	    directory. (Dave Fishburn)
Solution:   Copy "autocmd_fname" to allocated memory and expand to full
	    filename.  Shorten the path when expanding <afile>.
Files:	    src/ex_docmd.c, src/fileio.c


*** ../vim-7.1.185/src/ex_docmd.c	Wed Jan  2 15:12:29 2008
--- src/ex_docmd.c	Wed Jan  2 20:12:33 2008
***************
*** 7799,7804 ****
--- 7799,7805 ----
  free_cd_dir()
  {
      vim_free(prev_dir);
+     prev_dir = NULL;
  }
  #endif
  
***************
*** 9521,9526 ****
--- 9522,9528 ----
  		    *errormsg = (char_u *)_("E495: no autocommand file name to substitute for \"<afile>\"");
  		    return NULL;
  		}
+ 		result = shorten_fname1(result);
  		break;
  
  	case SPEC_ABUF:		/* buffer number for autocommand */
*** ../vim-7.1.185/src/fileio.c	Thu Nov  8 20:47:34 2007
--- src/fileio.c	Wed Jan  2 20:21:43 2008
***************
*** 5556,5562 ****
  #endif
  
  #if defined(FEAT_VIMINFO) || defined(FEAT_BROWSE) || \
!     defined(FEAT_QUICKFIX) || defined(PROTO)
  /*
   * Try to find a shortname by comparing the fullname with the current
   * directory.
--- 5556,5562 ----
  #endif
  
  #if defined(FEAT_VIMINFO) || defined(FEAT_BROWSE) || \
!     defined(FEAT_QUICKFIX) || defined(FEAT_AUTOCMD) || defined(PROTO)
  /*
   * Try to find a shortname by comparing the fullname with the current
   * directory.
***************
*** 8546,8551 ****
--- 8546,8553 ----
  
      /*
       * Set the file name to be used for <afile>.
+      * Make a copy to avoid that changing a buffer name or directory makes it
+      * invalid.
       */
      if (fname_io == NULL)
      {
***************
*** 8558,8563 ****
--- 8560,8567 ----
      }
      else
  	autocmd_fname = fname_io;
+     if (autocmd_fname != NULL)
+ 	autocmd_fname = FullName_save(autocmd_fname, FALSE);
  
      /*
       * Set the buffer number to be used for <abuf>.
***************
*** 8740,8745 ****
--- 8744,8750 ----
      vim_free(sourcing_name);
      sourcing_name = save_sourcing_name;
      sourcing_lnum = save_sourcing_lnum;
+     vim_free(autocmd_fname);
      autocmd_fname = save_autocmd_fname;
      autocmd_bufnr = save_autocmd_bufnr;
      autocmd_match = save_autocmd_match;
*** ../vim-7.1.185/src/version.c	Wed Jan  2 17:48:24 2008
--- src/version.c	Wed Jan  2 21:06:35 2008
***************
*** 668,669 ****
--- 668,671 ----
  {   /* Add new patch number below this line */
+ /**/
+     186,
  /**/

-- 
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   hacks him to the floor.  Blood.  Swashbuckling music (perhaps).
   LAUNCELOT races through into the castle screaming.
SECOND SENTRY: Hey!
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 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
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\\\        download, build and distribute -- http://www.A-A-P.org        ///
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