Issue #9902 has been updated by Nobuyoshi Nakada.

Backport changed from 2.0.0: UNKNOWN, 2.1: UNKNOWN to 2.0.0: REQUIRED, 2.1:REQUIRED

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Bug #9902: Regexp#[] ignores after NUL byte in named capture index
https://bugs.ruby-lang.org/issues/9902#change-47037

* Author: Nobuyoshi Nakada
* Status: Closed
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: r46343
* Backport: 2.0.0: REQUIRED, 2.1: REQUIRED
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Regexp#[]に"\0"を含む文字列やシンボルを指定したとき、それ以降が無視されます。

~~~
$ ruby -w -e 'p(/(?<a>.*)/.match("foo")["a\0foo"])'
"foo"

$ ruby -w -e 'p Regexp.new("(?<foo\0bar>.*?)").match("xxx")["foo\0bar"]'
-e:1:in `[]': undefined group name reference: foo (IndexError)
	from -e:1:in `<main>'
~~~



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