Ben Fritz wrote:

> When 'shelltemp' is set, the name of the temp file is inserted before the 
> first '|' in a filter, which is wrong if the first | in the filer is just one 
> of the arguments to the external command:
> 
> gvim -N -u NONE -i NONE
> :set shelltemp?
> shelltemp
> :.!echo "test|moretest"
> 
>   line gets replaced with:
>     "test <C:\tmp\VIi194.tmp |moretest" 
> 
> :set noshelltemp
> :.!echo "test|moretest"
> 
>   line gets replaced with:
>     "test|moretest"
>   as desired
> 
> This actually came up while trying to filter a few lines through a Perl regex 
> like %!perl -p -e "s/a|b/c/g"

Let's face it: Vim cannot parse shell commands.  And I don't think we
should try.  You will have to use some of the other shell* options to
work around this.

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