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Bug #19283

closed

Regex error on ruby 3.2

Added by Sho (Shohei Nakano) about 1 year ago. Updated about 1 year ago.

Status:
Closed
Assignee:
-
Target version:
-
ruby -v:
ruby 3.2.0 (2022-12-25 revision a528908271) [x86_64-linux]
[ruby-core:111501]

Description

There is an regex error pattern on ruby 3.2.0. This pattern is success on ruby 3.1.3.
Is this a bug? Or, is ruby 3.2.0 correct?

  • ruby 3.2.0
# ruby -v
ruby 3.2.0 (2022-12-25 revision a528908271) [x86_64-linux]
(byebug) MAX_CHAR_LENGTH = 8
8
(byebug) WHITE_SPACE_STR = '[[:space:]] \uFEFF\u00A0\u200B\u180E'
"[[:space:]] \\uFEFF\\u00A0\\u200B\\u180E"
(byebug) r = /\A((.{,#{MAX_CHAR_LENGTH}}x)|(.{,#{MAX_CHAR_LENGTH}}a[#{WHITE_SPACE_STR}]+b.{,#{MAX_CHAR_LENGTH}}))[#{WHITE_SPACE_STR}]*\Z/ix
/\A((.{,8}x)|(.{,8}a[[[:space:]] \uFEFF\u00A0\u200B\u180E]+b.{,8}))[[[:space:]] \uFEFF\u00A0\u200B\u180E]*\Z/ix
(byebug) r.match('a b')
#<MatchData "a b" 1:"a b" 2:nil 3:"a b">
(byebug) MAX_CHAR_LENGTH = 9
9
(byebug) r = /\A((.{,#{MAX_CHAR_LENGTH}}x)|(.{,#{MAX_CHAR_LENGTH}}a[#{WHITE_SPACE_STR}]+b.{,#{MAX_CHAR_LENGTH}}))[#{WHITE_SPACE_STR}]*\Z/ix
/\A((.{,9}x)|(.{,9}a[[[:space:]] \uFEFF\u00A0\u200B\u180E]+b.{,9}))[[[:space:]] \uFEFF\u00A0\u200B\u180E]*\Z/ix
(byebug) r.match('a b')
nil
  • ruby 3.1.3
# ruby -v
ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e) [x86_64-linux]
(byebug) MAX_CHAR_LENGTH = 8
8
(byebug) WHITE_SPACE_STR = '[[:space:]] \uFEFF\u00A0\u200B\u180E'
"[[:space:]] \\uFEFF\\u00A0\\u200B\\u180E"
(byebug) r = /\A((.{,#{MAX_CHAR_LENGTH}}x)|(.{,#{MAX_CHAR_LENGTH}}a[#{WHITE_SPACE_STR}]+b.{,#{MAX_CHAR_LENGTH}}))[#{WHITE_SPACE_STR}]*\Z/ix
/\A((.{,8}x)|(.{,8}a[[[:space:]] \uFEFF\u00A0\u200B\u180E]+b.{,8}))[[[:space:]] \uFEFF\u00A0\u200B\u180E]*\Z/ix
(byebug) r.match('a b')
#<MatchData "a b" 1:"a b" 2:nil 3:"a b">
(byebug) MAX_CHAR_LENGTH = 9
9
(byebug) r = /\A((.{,#{MAX_CHAR_LENGTH}}x)|(.{,#{MAX_CHAR_LENGTH}}a[#{WHITE_SPACE_STR}]+b.{,#{MAX_CHAR_LENGTH}}))[#{WHITE_SPACE_STR}]*\Z/ix
/\A((.{,9}x)|(.{,9}a[[[:space:]] \uFEFF\u00A0\u200B\u180E]+b.{,9}))[[[:space:]] \uFEFF\u00A0\u200B\u180E]*\Z/ix
(byebug) r.match('a b')
#<MatchData "a b" 1:"a b" 2:nil 3:"a b">

Related issues 1 (0 open1 closed)

Has duplicate Ruby master - Bug #19282: Regex error on ruby 3.2ClosedActions
Actions #1

Updated by alanwu (Alan Wu) about 1 year ago

  • Has duplicate Bug #19282: Regex error on ruby 3.2 added
Actions #2

Updated by Sho (Shohei Nakano) about 1 year ago

  • ruby -v changed from 3.2.0 to ruby 3.2.0 (2022-12-25 revision a528908271) [x86_64-linux]

Updated by Sho (Shohei Nakano) about 1 year ago

This case didn't become error after I tested this regex error case with ruby master branch(https://github.com/ruby/ruby/commit/5abb2ef1532e52f3e5fb63ea25e90a72c8e7d581).
This issue may be resolved by Bug #19273 and PR(https://github.com/ruby/ruby/pull/7035).

Updated by Sho (Shohei Nakano) about 1 year ago

This error is resolved by releasing ruby 3.2.1. I really appreciate it.

Actions #5

Updated by hsbt (Hiroshi SHIBATA) about 1 year ago

  • Status changed from Open to Closed
Actions

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