cmap to use a substitute command

[David Fishburn]

Good Morning.

Vim 7.3.1-421 Windows 7 64-bit.

I want to create a command mode mapping which will do a substitution on
what is already typed in.
I am just wondering how to get access to the command line?

My searches through the help which was based on cmap and mapmode-c
didn't reveal anything I could use.

Thanks,
Dave

[Ben Fritz]

There's the getcmdline() function, but I don't see a way to set it.

As a workaround you could enter the command window and run a simple substitute command.

[Andy Wokula]

:h getcmdline()
:h c_CTRL-\_e
:h c_CTRL-R_=
:h getcmdpos()
:h setcmdpos()

I've used all of the above in conomode.vim:
http://vim.sf.net/scripts/script.php?script_id=2388

(maybe not very readable code, but should be enough to get some
inspiration :-)

--
Andy

[Ben Fritz]

On Friday, April 20, 2012 2:07:24 PM UTC-5, Andy Wokula wrote:
>
> :h getcmdline()
> :h c_CTRL-\_e

Awesome, I didn't know about c_CTRL-\_e, I was wondering why there wasn't a setcmdline() function. Now I know! That functionality is elsewhere.

[Chris Jones]

Rather than changing one's working habits and resorting to a cmap'd key
combo, is there any way I could transparently cause a custom function to
be invoked, say.. each time I enter a ‘:!...’ command (or even any Ex
command) so that I could inspect the content of the command and fiddle
with it in certain cases.

I have not looked into it, but I'm thinking of doing :cabbrev's on
either ‘!’ or the final <CR> .. but this looks soooo ugly to start off
with that I'm a little reluctant to go down that road without making
sure that there is not a clean/standard Vim solution that I missed.

The context is that I am revisiting this iFAQ where once in a while
a *nix user complains that bash aliases and functions are not available
when invoking the shell via ‘:!’.. I have come to the conclusion that
the $BASH_ENV hack is not satisfactory.

Not sure if I'm hijacking this thread.. If so, please let me know and
I'll open a separate ticket.

Thanks,

CJ

--
ALL YOUR BASE ARE BELONG TO US!

[Chris Jones]

addendum.. more likely ‘!’ or <CR> cmap's than :cabbrev's..

[David Fishburn]

Thanks Andy.

I regularly use the MRU plugin with it's tab completion.

I will often use it to get close to a file I want to edit (absolute
path) and then need to change :MRU to :e and finish editing the command
line and edit the file.

So, this cmap will do what I want <C-e> for "e"dit:
cmap <C-e> <C-\>esubstitute(getcmdline(), '^MRU\>', 'e', '')<CR>

Dave