Forum: Ruby-dev Regexp#[] ignores after NUL byte in named capture index

5cf8f058a4c094bb708174fb43e7a387?d=identicon&s=25 unknown (Guest)
on 2014-07-18 19:16
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Issue #9902 has been updated by Tomoyuki Chikanaga.

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

backported into `ruby_2_1` branch at r46869.

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Bug #9902: Regexp#[] ignores after NUL byte in named capture index
https://bugs.ruby-lang.org/issues/9902#change-47867

* Author: Nobuyoshi Nakada
* Status: Closed
* Priority: Normal
* Assignee:
* Category:
* Target version:
* ruby -v: r46343
* Backport: 2.0.0: REQUIRED, 2.1: DONE
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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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