Temporarily replace grep with a custom program

Tip 688 Printable Monobook Previous Next

created March 28, 2004 · complexity intermediate · author lpen · version 6.0

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Sometimes you want to use quickfix for some things other than grep and make. You can always replace one of them and then return to what it was.

So, I have in my vimrc:

fu! Mycscope(func)
  let tmp1=&grepprg
  let tmp2=&grepformat
  set grepformat=%f\ %*[a-zA-Z_0-9]\ %l\ %m
  set grepprg=cscope\ -R\ -L\ -3
  exe "grep ".a:func
  exe "set grepprg=".escape(tmp1,' ')
  exe "set grepformat=".escape(tmp2, ' ')
endf
command -nargs=* CScope :silent call Mycscope("<args>")

This will create the command CScope, that does a cscope's "find functions calling this function" with quickfix.

Another example: lid

fu! Mylid(arg)
  let tmp1=&grepprg
  set grepprg=lid\ -Rgrep\ -s\ $*
  exe "grep ".a:arg
  exe "set grepprg=".escape(tmp1," ")
endf
command -nargs=* Lid :silent call Mylid("<args>")

Bug: Sometimes Vim is unable to come back from the command, and you have to hit CTRL+C. I have no idea why.

Comments

The last two lines in your Mycscope can be simply

let &grepprg=tmp1
let &grepformat=tmp2

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script#949 is based on this tip.

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