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basic Tip #1315: netrw x command

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created:   August 24, 2006 14:25      complexity:   basic
author:   Steve dugaro      as of Vim:  

> Ive started using netrw extensively with vim7.
> Im having one issue when trying to override the x command.
> Essentially, i copied $VIMRUNTIME/autoload/netrwFileHandlers.vim
> into my .vim/plugins (and /autoload) directory expecting to
> override any functions defined in $VIMRUNTIME with my own.
>
> for instance, i attempt to handle .pdfs with acroread instead of gs.
>
> the problem is, BOTH file handlers are called.
> first the .pdf is launched with gs, then again with acroread.
>
> ive setup c++ filehandlers to checkout files from version control
> when the cursor is on that file and i hit 'x'. this works... however as
> above, kwrite is launched automatically prior to the checkout
>
> setting
> let g:netrw_browsex_viewer = '-'
> in my .vimrc does not appear to have any effect
> as the kfmclient exec is still called.


So after copying all of the $VIMRUNTIME/autoload/netrw.vim
to my .vim/autoload, $VIMRUTIME/autoload/netrwFileHandlers.vim
to my .vim/plugin and $VIMRUNTIME/plugin/netrwPlugin.vim
to my .vim/plugin directory and hacking around netrw.vim a bit i noticed
bad logic in the branch tests if g:netrw_browserx_viewer == '-' is set (which
according to the documentation is supposed to use netrwFileHandler()
from netrwFileHandlers.vim instead of the os's run dialog... in my case
kfmclient exec)

if exists("g:netrw_browserx_viewer) && executable(g:netrw_browsex_viewer)
  "(does not even get here to test if g:netrw_browserx_viewer is set in .vimrc)
   if g:netrw_browserx_viewer == '-'
   ...

This fails because there is no executable named "-"
change
if exists("g:netrw_browserx_viewer) && executable(g:netrw_browsex_viewer)
to
if exists("g:netrw_browserx_viewer)
or
comment out the line just prior to the && and problem solved.

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Additional Notes

ludvig .dot. ericson at gmail dot com, September 2, 2006 18:44
It's confusing how browsex and browserx are used interchangeably though.
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