I know alot of people who use would like to use a mIRC highlighting. So adding it as a lexer, I think, would be a good idea.
How would this be different from the existing !IrcLexer?
mIRC scripting language uses its own syntax. See http://en.wikipedia.org/wiki/MIRC_scripting_language
Looking at IrcLexer, its primary use seems to be parsing raw messages from an IRC daemon.
Any idea when this will be added?
Issue #709 was marked as a duplicate of this issue.
Generally, we don't write new lexers ourselves anymore; they have to be contributed.
Could you explain your usecase? Are you trying to translate the color codes to html?