Bump regexp_parser from 2.1.1 to 2.6.1

[dependabot]

Bumps regexp_parser from 2.1.1 to 2.6.1.

Changelog

Sourced from regexp_parser's changelog.

[2.6.1] - 2022-11-16 - Janosch Müller

Fixed

• fixed scanning of two negative lookbehind edge cases
  • (?<!x)y> used to raise a ScannerError
  • (?<!x>)y used to be misinterpreted as a named group
  • thanks to Sergio Medina for the report

[2.6.0] - 2022-09-26 - Janosch Müller

Fixed

• fixed #referenced_expression for \g<0> (was nil, is now the Root exp)
• fixed #reference, #referenced_expression for recursion level backrefs
  • e.g. (a)(b)\k<-1+1>
  • #referenced_expression was nil, now it is the correct Group exp
• detect and raise for two more syntax errors when parsing String input
  • quantification of option switches (e.g. (?i)+)
  • invalid references (e.g. /\k<1>/)
  • these are a SyntaxError in Ruby, so could only be passed as a String

Added

• Regexp::Expression::Base#human_name
  • returns a nice, human-readable description of the expression
• Regexp::Expression::Base#optional?
  • returns true if the expression is quantified accordingly (e.g. with *, {,n})
• added a deprecation warning when calling #to_re on set members

[2.5.0] - 2022-05-27 - Janosch Müller

Added

• Regexp::Expression::Base.construct and .token_class methods
  • see the wiki for details

[2.4.0] - 2022-05-09 - Janosch Müller

Fixed

• fixed interpretation of + and ? after interval quantifiers ({n,n})
  • they used to be treated as reluctant or possessive mode indicators
  • however, Ruby does not support these modes for interval quantifiers
  • they are now treated as chained quantifiers instead, as Ruby does it
  • c.f. #3
• fixed Expression::Base#nesting_level for some tree rewrite cases
  • e.g. the alternatives in /a|[b]/ had an inconsistent nesting_level
• fixed Scanner accepting invalid posix classes, e.g. [[:foo:]]
  • they raise a SyntaxError when used in a Regexp, so could only be passed as String

... (truncated)

Commits

• 922ce35 Release v2.6.1
• 81340c3 Don't scan (?\<!...> as named group
• 752c040 Release v2.6.0
• 51b3e46 Update README.md
• 178db85 Rubocop
• 182f39c Add Expression#human_name
• 9bc7fcb Fix typo in comments
• 649852f Memoize Expression#repetitions
• 682e958 Warn when calling #to_re on set members
• 90a03a6 Add Expression#optional?
• Additional commits viewable in compare view

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[dependabot]

Superseded by #130.