Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer

Re^4: 5.10.0 regex slowdown

by demerphq (Chancellor)
on Feb 22, 2008 at 00:56 UTC ( #669441=note: print w/ replies, xml ) Need Help??

in reply to Re^3: 5.10.0 regex slowdown
in thread 5.10.0 regex slowdown

See those BRANCHJ EXACT LONGJMP tuples? They are confusing the optimiser so that it doesnt recognize this as a trie'able sequence. Ill have to think about what i can do about that.

I doubt ill have time soon tho.

Offline ysth mentioned a cool suggestion:

[2008-02-22 01:45] <ysth1> I ended up dividing my list into three diff +erent regexes and used them like (?:(??{$rxa})|(??{$rxb})|(??{$rxc}))

Which isnt ideal but better than no trie at all. Sorry about this. :-(


Comment on Re^4: 5.10.0 regex slowdown
Download Code
Replies are listed 'Best First'.
Re^5: 5.10.0 regex slowdown
by BrowserUk (Pope) on Feb 22, 2008 at 01:13 UTC

      Ah, yes. For sure. I didnt need that much anyway. :-) Im pretty sure youll find that most of that is going to be *match* debug output, which is not what i wanted, i just wanted a snippet of the compiled pattern dump. Sorry about that.


Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://669441]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others meditating upon the Monastery: (12)
As of 2015-10-06 15:01 GMT
Find Nodes?
    Voting Booth?

    Does Humor Belong in Programming?

    Results (151 votes), past polls