historical in-channel regex substitution

[shabble]

Idea

In some channels it's commonplace to correct your mistakes with a pseudo-regex, for example:

<Foo> I love badgers!
<Bar> Badgers, really?!
<Foo> s/badgers/horses/

Instead of mentally parsing it, get irssi to do it!

It needs some security and sanity checking for the replacement string, and should have a couple of thresholds / restrictions.
Something like:

• users can only modify their own lines
• items beyond a certain number of lines aren't touched
• items older than a certain threshold aren't touched
• s/a/b/g isn't allowed (but difficult to generalise - how little is too little. Maybe run the match and count the number of matches?
  • Only the first N possible matches will be applied?

Other notes:

• There should be a visual cue to indicate it's been applied (* at the start/end of the line, maybe)
• Do you remove the line which contains the replacement command?
• Have to ensure it only gets applied to actual message contents, not parts of the UI /formats (timestamps, nicks, etc)

See Also

https://github.com/shabble/irssi-scripts/blob/master/feature-tests/linehax.pl

[ailin-nemui]

http://anti.teamidiot.de/static/nei/*/Code/Irssi/typofix.pl