On 11-Mar-2014 15:14 +0100, Ben Fritz wrote:
> On Tuesday, March 4, 2014 1:15:40 AM UTC-6, Gary Johnson wrote:
>>
>>
>> Using a GUI file manager, I opened this file with gvim. I made some
>>
>> changes to it, then tried comparing the changed buffer with the
>>
>> copy on disk with this command which I have used for years:
>>
>>
>>
>> :w !diff "%" -
>>
>>
>>
>> The result surprised me.
>>
>>
>>
>> diff: Dropbox/vimfiles/filetype \(toucan's conflicted copy
>> 2014-03-01\).vim: No such file or directory
>>
>>
>>
>> shell returned 2
>>
>>
>>
>> However, if instead I typed
>>
>>
>>
>> :w !diff "^R%" -
>>
>>
>>
>> where ^R means Ctrl-R, the command became
>>
>>
>>
>> :w !diff "Dropbox/vimfiles/filetype (toucan's conflicted copy
>> 2014-03-01).vim" -
>>
>>
>>
>> and worked fine.
>>
>>
>>
>
> Isn't this situation what shellescape() is designed for?
>
> That's not saying shellescape() will work, but I think it's supposed
> to work, unlike using a bare % which should always work for internal
> Vim commands but will only work by accident in external commands.
No, shellescape() would be used in a mapping / command, like this:
shellescape(expand('%'), 1). With the 1 flag (for use with :!), a
literal % is properly escaped to \% so that Vim's special handling does
not apply.
% is handy for interactive use, like :!perl %
-- regards, ingo
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