Re: Retrieve the argument of a prior Ex mode command

On Thu, Jan 19, 2012 at 10:37:46PM EST, Tim Chase wrote:
> On 01/19/12 21:24, Chris Jones wrote:

I eventually used a mix of Paul and Tim's suggestions and came up with
this:

| " ========================================================================
| " Emulate bash/readline's yank-last-arg on the command-line
| "
| " see ~/.vimrc for mappings:
| "
| " cnoremap <expr> <Esc>. GetArg0()
| " nnoremap : :<C-\>eInitIndex0()<CR>
| "
| " ========================================================================
|
| " list of 'interesting' commands
| let g:cmdlist = ['cd',
| \ 'lcd',
| \ 'tabe',
| \ 'vne']
|
| function! GetArg()
|
| " wrap to beginning of history
| if histget("cmd", g:indx) == ""
| g:indx = histnr("cmd") - 1
| endif
|
| " loop until interesting command is found
| while 1 == 1
| let g:indx -= 1
| let g:cmdl = split(histget("cmd", g:indx))
|
| " skip commands with no argument
| if len(g:cmdl) < 2
| continue
| endif
|
| " skip useless commands
| if match(g:cmdlist, g:cmdl[0]) == -1
| continue
| endif
|
| " now grab argument..
| let g:arg = g:cmdl[-1]
|
| " and return it concatenated to user's current command
| return ' '.matchstr(getcmdline(), '^\S*').' '.g:arg
| endwhile
|
| endfunction
|
| function! InitIndex()
|
| " set pointer to most recent entry in the history
| let g:indx=histnr("cmd") - 1
|
| return ""
|
| endfunction

All nicely commented, in case I forget what this was all about.. :-)

Added a 'while loop' to speed up things a bit by skipping irrelevant
commands/arguments so it pretty much behaves along the lines of what
I orginally had in mind.

Thanks to both for help.

CJ

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