> How do I set up a mapping to make the currently selected text (visual
> mode) get processed by an external command?
>
> I have a bunch of scripts that do text processing (mostly perl and bash)
> that I want to process the current buffer in vim.
>
> To process the whole file, I can do:
>
> map<leader>x :%! external_prog.pl<CR>
>
> But how do I set it up so that if there is something highlighted via
> visual mode then only that text gets processed.
>
> Is there a way to set this up so that the same mapping will process the
> highlighted text, or if nothing is selected process the whole file?
>
> Alternatively, can it be set up to process either the highlighted text,
> or the current line?
>
> Thanks,
> Matt
>
>
:nmap <Leader>x :%!foobar.pl<CR>
:vmap <Leader>x :!foobar.pl<CR>
Hitting : in Visual mode (as with the second of these mappings) inserts
:'<,'> on the command-line, thus passing as stdin to the ! command only
the lines included in the visual selection. (If the selection is
characterwise or blockwise Vim will still pass the *full* lines from top
to bottom of the selection, however.)
See
:help map-overview
:help v_:
Best regards,
Tony.
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