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Substitutes in Mush/Lua

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Posted by Oligo (26 posts) bio

Date

Sat 09 Jun 2012 02:38 PM (UTC) [ quote ]

Amended on Sat 09 Jun 2012 02:41 PM (UTC) by Oligo

Message

I'm trying to port some string subs from Tintin to Mush but I've noticed some pretty significant performance degradation. I suspect it has to be with the way I setup the regex. I have roughly 100 of these spell subs.

In Tintin, the syntax I use is like

#sub {%1 wooden splint} {$1 wooden splint [LOW HEA]}

In Mush, I couldn't figure out an exact 1-to-1 match to the tintin #substitute command so I use a trigger with omit output to mimic #sub behavior. I do the following which seems to have heavy performance penalty. If I add an anchor ^ at the beginning of the pattern will that help performance? Or is there a more robust way or better technique to what I'm doing?

<trigger colour_change_type='1' enabled='y' expand_variables='y' group='spellcomps' 
	match="(.+) wooden splint(.*)" omit_from_output='y' regexp='y' 
	send_to='12' sequence='100' other_text_colour='white'>
  <send>ColourNote("silver","black","%1 wooden splint [LOW HEA]%2")</send>
</trigger>

Ideally if I encounter something like
A wooden splint is here. [2]

I'd like the sub to replace it with
A wooden splint [LOW HEA] is here. [2]

mud.arctic.org : 2700

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Posted by

Nick Gammon Australia (18,769 posts)

bio Forum Administrator

Date

Reply #1 on Sat 09 Jun 2012 09:13 PM (UTC) [ quote ]

Message

The anchor may help, to save it having to keep retrying a match from position 1, position 2 and so on.

What will probably also help is uncheck "expand variables". Variables are where variable substitution is done, which you are not doing.

- Nick Gammon

www.gammon.com.au, www.mushclient.com

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