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TRegex Changelog

This changelog summarizes major changes between TRegex versions relevant to language implementors integrating TRegex into their language. This document will focus on API changes relevant to integrators of TRegex.

Version 21.3.0

  • Support for case-insensitive matching in Ruby regular expressions.
  • Added Regexp option IgnoreAtomicGroups for treating atomic groups as ordinary groups.
  • Compiled regular expressions export the isBacktracking boolean member, which can be used to determine if the regexp can backtrack and potentially lead to exponential runtime.

Version 21.2.0

  • Added support for the hasIndices (d) flag in ECMAScript regular expressions.

Version 20.2.0

  • Introduced on-the-fly decoding for UTF-16 strings.

Version 20.1.0

  • Completed feature support for EcmaScript 2020 regular expressions via a new built-in back-tracking engine.

Version 1.0.0 RC15

  • Removed properties regex, input, start, and end from result objects.
  • Introduced methods getStart(groupNumber) and getEnd(groupNumber) as a replacement for start and end in result objects.
  • Regex syntax exceptions are now to be treated as plain TruffleExceptions - languages using TRegex should not introduce any source code dependency on TRegex.
  • Moved groupCount property from regex result to compiled regex objects.

Version 1.0.0 RC10

  • Added the possibility to log the actions of the compiler.
    • Introduced the regex loggers SwitchToEager, TotalCompilationTime, Phases, BailoutMessages, AutomatonSizes, CompilerFallback, InternalErrors and TRegexCompilations. These can be enabled in your launchers by setting, e.g., --log.regex.Phases.level=ALL.