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Author terry.reedy
Recipients alex, ericp, ezio.melotti, pitrou, terry.reedy
Date 2012-01-14.04:10:04
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I believe it is a known fact that repeated repeats, like (...+)*, make for slow matching (if they work at all) with the current re engine.
[I would not be surprised if Perl does some special casing to (in effect at least) rewrite the re to your second version.] This is not going to be improved in 2.7, nor immediately in 3.x. You can try the regex module on pypi, but it may act the same. I suspect there are similar issues like this on the tracker. Best to write the re properly.

[Antoine or Ezio: If you think I am mistaken in closing this, please reopen.]
Date User Action Args
2012-01-14 04:10:05terry.reedysetrecipients: + terry.reedy, pitrou, ezio.melotti, alex, ericp
2012-01-14 04:10:05terry.reedysetmessageid: <>
2012-01-14 04:10:05terry.reedylinkissue13723 messages
2012-01-14 04:10:04terry.reedycreate