Re: Vimdiff, version 7.4 on Windows 7

On Monday, August 12, 2013 1:32:17 PM UTC-5, Marcio Gil wrote:
> :set diffexpr?
>
> diffexpr=MyDiff()
>
>
>
> then I put the line:
>
> echo '!' . cmd . ' ' . opt . arg1 . ' ' . arg2 . ' > ' . arg3 . eq
>
>
>
> before this in the _vimrc (copied from vimrc_example.vim):
>
> silent execute '!' . cmd . ' ' . opt . arg1 . ' ' . arg2 . ' > ' .
>
> arg3 . eq
>
>

The latest vimrc_example.vim distributed with version 7.4 no longer contains the diffexpr setting.

>
> :vert diffsp vimrc~
>
> !""C:\Program Files (x86)\Vim\vim74\diff" -a --binnary
>
> C:\Users\Marcio\AppData\Local\Temp\VIo4C8B.tmp
>
> C:\Users\Marcio\AppData\Local\Temp\VIn4C8C.tmp >
>
> C:\Users\Marcio\AppData\Local\Temp\VId4C8D.tmp"
>
> E810: Cannot read or write temp files
>
> E97: Cannot create diffs
>
>

One of the changes in 7.4 compared to 7.3.0 is improving the external command handling on Windows, so that you no longer need to add extra " characters around the entire command. See the series of patches starting at 7.3.443 for details. So with your diffexpr, there are now extra quote characters.

>
> I just remove the MyDiff() function from _vimrc then the diff works!
>
> It is Ok for me, but is there a failure in the Vim instalation?

Not a failure in the install, since those lines aren't in the vimrc_example file any longer.

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