Benchmark: patternsearchalgorithms in a JVM regex shootout

[henryware]

Hi,

I added Amygdalum's patternsearchalgorithms to my JVM regex benchmarks at https://github.com/henryware/jvm-regex-benchmarks.

Thanks for the nice implementation.

[almondtools]

Thank you for the feedback. Obviously you have discovered a bug (#3).

[henryware]

The driver I wrote always advances one "char" on an empty match. This mimics the most common behavior for JVM regex engines--- in particular, it is what Java's own regex does. However, it's bizarre behavior when the next character is a two char CodePoint: it leaves you pointing halfway through the logical character. Compatibility is important, but this behavior seems deeply Wrong.

Not recommending against it, just venting.

[almondtools]

The new version should fix the problem with empty matches. Would be glad to hear of you if you start another benchmark.

Regards,

[henryware]

I look forward to trying it. Will there be a release? Thanks.

…

On Sun, May 17, 2026, 2:22 PM Stefan Mandel ***@***.***> wrote: *almondtools* left a comment (almondtools/patternsearchalgorithms#2) <#2 (comment)> The new version should fix the problem with empty matches. Would be glad to hear of you if you start another benchmark. Regards, — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BRKUZCZWJSXJ2I2CUWJ2LSL43H7O3AVCNFSM6AAAAACYSFZTS6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DINZSGA3TEMBVGE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[almondtools]

Yes it is release as 0.1.4. I assumed that it was already released, but there was a manual step in the new release procedure, I was not aware of. Hopefully no more bugs inside, but if you find some, I would put priority on fixing them.

[henryware]

I got it and it passed the tests. Benchmarks are running; I will post them on Sunday.

…

On Fri, May 22, 2026, 1:34 PM Stefan Mandel ***@***.***> wrote: *almondtools* left a comment (almondtools/patternsearchalgorithms#2) <#2 (comment)> Yes it is release as 0.1.4. I assumed that it was already released, but there was a manual step in the new release procedure, I was not aware of. Hopefully no more bugs inside, but if you find some, I would put priority on fixing them. — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BRKUZC7TMCGM6GR7RD4AQQD44CTVNAVCNFSM6AAAAACYSFZTS6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DKMRSGE3DMMBYGI> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you authored the thread.Message ID: ***@***.***>