RE: Grep with matching lines syntax highlighted [snippet]

[Drew Adams]

Commands to remove commented lines from 'grep' output and toggle their
automatic removal. Bound to `;' and 'M-;', respectively. Only single-line
comments are removed - e.g. // commented lines are removed, but multiline
/* . */ comments are not removed.

> (Note: This is for Emacs 22 only.)

A version for older Emacs versions is available also now.

Emacs 22:

http://www.emacswiki.org/cgi-bin/emacs/compile-.el
http://www.emacswiki.org/cgi-bin/emacs/compile+.el
http://www.emacswiki.org/cgi-bin/wiki/grep%2b.el

Emacs 20 and 21:

http://www.emacswiki.org/cgi-bin/emacs/compile-20.el
http://www.emacswiki.org/cgi-bin/emacs/compile+20.el

Doc: http://www.emacswiki.org/cgi-bin/wiki/GrepPlus