Bump regexp_parser from 2.0.3 to 2.1.1

[dependabot-preview[bot]]

Bumps regexp_parser from 2.0.3 to 2.1.1.

Changelog

Sourced from regexp_parser's changelog.

[2.1.1] - 2021-02-23 - Janosch Müller

Fixed

• fixed NameError when requiring only 'regexp_parser/scanner' in v2.1.0
  • thanks to Jared White and Sam Ruby for the report

[2.1.0] - 2021-02-22 - Janosch Müller

Added

• common ancestor for all scanning/parsing/lexing errors
  • Regexp::Parser::Error can now be rescued as a catch-all
  • the following errors (and their many descendants) now inherit from it:
    • Regexp::Expression::Conditional::TooManyBranches
    • Regexp::Parser::ParserError
    • Regexp::Scanner::ScannerError
    • Regexp::Scanner::ValidationError
    • Regexp::Syntax::SyntaxError
  • it replaces ArgumentError in some rare cases (Regexp::Parser.parse('?'))
  • thanks to sandstrom for the cue

Fixed

• fixed scanning of whole-pattern recursion calls \g<0> and \g'0'
  • a regression in v2.0.1 had caused them to be scanned as literals
• fixed scanning of some backreference and subexpression call edge cases
  • e.g. \k<+1>, \g<x-1>
• fixed tokenization of some escapes in character sets
  • ., |, {, }, (, ), ^, $, ?, +, *
  • all of these correctly emitted #type :literal and #token :literal if not escaped
  • if escaped, they emitted e.g. #type :escape and #token :group_open for [\(]
  • the escaped versions now correctly emit #type :escape and #token :literal
• fixed handling of control/metacontrol escapes in character sets
  • e.g. [\cX], [\M-\C-X]
  • they were misread as bunch of individual literals, escapes, and ranges
• fixed some cases where calling #dup/#clone on expressions led to shared state

Commits

• 5466dba Release v2.1.1
• 0666832 Require base error where it is needed
• 010b690 Avoid calling #dir during load time
• 31767d9 Add js_regex to gouteur testing
• 3524918 Release v2.1.0
• 948441a Inherit from a base error class to support catch-all
• 4bfb565 Add gouteur testing
• 20aa3ac Fix escape tokenization in sets
• bce9a6a Fix a few #dup methods and Group::Options#dup,#clone
• 4151764 Support meta/control escapes within sets
• Additional commits viewable in compare view

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