DGdgroshev·Apr 24, 2025Submission
Oniguruma, a popular regex library, is archived, the project "ended"
6 points · Open discussionkkos
oniguruma
C2017–2025
kkos / oniguruma · Archived
oniguruma
regular expression library
6Distinct people
6Mentions
0Explicit recommenders
2.5KGitHub stars
What to know before exploring
What it is
regular expression library
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year6 dated mentions
Observed mentions: 2017-02-08 21:17:21 UTC to 2025-04-24 13:45:16 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 2 | 2 | 0 |
What Hacker News says
6 sourcesThe only open source software "attacked" on Google search in Japan
2 points · Open discussionFor anyone interested, this is the Oniguruma [0] regex library written by K. Kosako. It's also used in Ruby and PHP.
[0] https://github.com/kkos/oniguruma
In Ask HN: Is there still a place for native desktop apps?The Oniguruma engine has had named, callable subpatterns for a while:
https://github.com/kkos/oniguruma/blob/master/doc/RE#L400
Supported (via Oniguruma) in Ruby 2.0.0+, dunno about other languages.
In Show HN: Nevod is easier and faster than RegExpI was quite amused by the design of Oniguruma [1] which is essentially the Ruby's regular expression library. It contains tons of associated tables for each supported character encoding---segmentation, character types, case folding and the likes. I found it ironical that the non-ASCII case folding doesn't seem to work for most CJK character encodings though (in my shallow analysis).
[1] https://github.com/kkos/oniguruma
In How is Ruby different in Japan?They have lookbehind lookup that's only coming now in ESNext , and, more importantly, recursion, if I understand properly[0].
Maybe more things, I stopped reading the docs at that point to comment here. They have other features absent from JS that can be more or less polyfilled, like possessive quantifiers and sticky matching (they do it with an escape sequence, though, so it can only be polyfilled using this trick[1] if the escape character applies to the whole regexp rather than part of it).
[0] https://github.com/kkos/oniguruma/blob/1983356862bc3ff795d77...
[1] https://github.com/slevithan/xregexp/issues/152
In Optimizations in Syntax Highlighting