View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0003969 | unreal | ircd | public | 2010-11-18 20:23 | 2015-05-30 15:23 |
| Reporter | Assigned To | syzop | |||
| Priority | normal | Severity | feature | Reproducibility | N/A |
| Status | closed | Resolution | no change required | ||
| Summary | 0003969: please replace TRE with Oniguruma regex engine | ||||
| Description | Hello, TRE is extremely slow. Oniguruma ( http://www.geocities.jp/kosako3/oniguruma/ ) is an extremely fast regexp engine, roughly twice as fast as perl regexp. (In benchmark tests, TRE is about half as fast as Perl's regexp engine.) Replacing TRE with Oniguruma should yield massive performance gains and it should be relatively easy to do since Unreal is using the POSIX regex.h compatibility layer of TRE anyway, and Oniguruma implements such a layer as well. | ||||
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+1 |
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As long as lookarounds can be supported in spamfilters, I'm all for an upgrade. |
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+1 |
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If I understand correctly Oniguruma is used by PHP5? And ruby? I ask, because last thing I want is using some obscure regex engine which is very fast but has various crash bugs and other issues and is no longer maintained.. ;) TRE was very fast compared to any other POSIX regex library at that time (10-1000x faster), but I've never been so happy with the quality: previous releases crashed sometimes and some bugs took several years to be fixed. At first glance a geocities page isn't that assuring, added to that it starts with updated at: 2010/01/09. But, if PHP and Ruby use it then it must be quite ok? |
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Oniguruma is actually more resilient against bad input than TRE is in my experience. Audacious (at least until 3.x) used it as regexp engine wherein it was tortured with corrupt binary data (bad tags) by approximately 1.5 million users. TRE was slower and had bugs with random junk data. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2010-11-18 20:23 |
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New Issue | |
| 2010-11-24 06:28 | warg | Note Added: 0016444 | |
| 2011-01-05 01:47 | Humanoid | Note Added: 0016580 | |
| 2011-01-05 02:47 | katsklaw | Note Added: 0016581 | |
| 2012-02-27 15:30 | syzop | Note Added: 0016929 | |
| 2012-02-28 06:22 |
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Note Added: 0016933 | |
| 2015-05-30 15:22 | syzop | Status | new => closed |
| 2015-05-30 15:23 | syzop | Assigned To | => syzop |
| 2015-05-30 15:23 | syzop | Resolution | open => no change required |
