From: "mame (Yusuke Endoh) via ruby-core" <ruby-core@...>
Date: 2024-04-24T08:12:42+00:00
Subject: [ruby-core:117672] [Ruby master Bug#20262] Regex mismatch between Ruby 3.2.2 and 3.3.0

Issue #20262 has been updated by mame (Yusuke Endoh).

Status changed from Open to Closed

Maybe the same issue as https://bugs.ruby-lang.org/issues/20083. Fixed at 3.3.1.

```
$ RBENV_VERSION=3.2.2 ruby -e 'str = "------------abcdefg------------#3895912"
re = /\b\w*[a-zA-Z-]*\d+[\w-]{3,}\w+\b/
p re.match?(str)'
true

$ RBENV_VERSION=3.3.0 ruby -e 'str = "------------abcdefg------------#3895912"
re = /\b\w*[a-zA-Z-]*\d+[\w-]{3,}\w+\b/
p re.match?(str)'
false

$ RBENV_VERSION=3.3.1 ruby -e 'str = "------------abcdefg------------#3895912"
re = /\b\w*[a-zA-Z-]*\d+[\w-]{3,}\w+\b/
p re.match?(str)'
true
```

----------------------------------------
Bug #20262: Regex mismatch between Ruby 3.2.2 and 3.3.0
https://bugs.ruby-lang.org/issues/20262#change-108083

* Author: weilandia (Nick Weiland)
* Status: Closed
* ruby -v: 3.3.0
* Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
----------------------------------------
This might be a duplicate of https://bugs.ruby-lang.org/issues/20098, but I cannot make it match with the backref so maybe not.

Below example matches in 3.2.2 but not in 3.3.0

``` ruby
str = "------------abcdefg------------#3895912"
re = /()\1\b\w*[a-zA-Z-]*\d+[\w-]{3,}\w+\b/
re.match?(str)
```





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