Bug #9902: Regexp#[] ignores after NUL byte in named capture index

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: r46343
• Backport: 2.0.0: DONE, 2.1: DONE

[nobu (Nobuyoshi Nakada)]

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>'

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

Applied in changeset r46344.

---

re.c: fix name with NUL

• re.c (match_aref): should not ignore name after NUL byte.
  [ruby-dev:48275] [Bug #9902]

[nobu (Nobuyoshi Nakada)]

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

[nagachika (Tomoyuki Chikanaga)]

rb_sym2str() doesn't exist in 2.1. Can I use rb_sym_to_s() instead?

[nobu (Nobuyoshi Nakada)]

Yes, or rb_id2str(SYM2ID(idx)).

[nagachika (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.

[usa (Usaku NAKAMURA)]

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

backported into ruby_2_0_0 at r47334.