Gvim中diff出现”Cannot read or write temp files”错误

在xp中安装了Gvim7.4,但是diff时出现”Cannot read or write temp files”错误。后来在sf上找到了解决方法。原来这是一个bug,在最新的Gvim中已修复。也可以替换_vimrc文件中的MyDiff()函数来修复。

解决此问题的MyDiff函数如下:

 function MyDiff()
   let opt = '-a --binary '
   if &diffopt =~ 'icase' | let opt = opt . '-i ' | endif
   if &diffopt =~ 'iwhite' | let opt = opt . '-b ' | endif
   let arg1 = v:fname_in
   if arg1 =~ ' ' | let arg1 = '"' . arg1 . '"' | endif
   let arg2 = v:fname_new
   if arg2 =~ ' ' | let arg2 = '"' . arg2 . '"' | endif
   let arg3 = v:fname_out
   if arg3 =~ ' ' | let arg3 = '"' . arg3 . '"' | endif
   if $VIMRUNTIME =~ ' '
     if &sh =~ '\<cmd'
       if empty(&shellxquote)
         let l:shxq_sav = ''
         set shellxquote&
       endif
       let cmd = '"' . $VIMRUNTIME . '\diff"'
     else
       let cmd = substitute($VIMRUNTIME, ' ', '" ', '') . '\diff"'
     endif
   else
     let cmd = $VIMRUNTIME . '\diff'
   endif
   silent execute '!' . cmd . ' ' . opt . arg1 . ' ' . arg2 . ' > ' . arg3
   if exists('l:shxq_sav')
     let &shellxquote=l:shxq_sav
   endif
 endfunction

sf上参考链接

(完)