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- Update to 3.1:
  * new options --leftmost-captures option and re2c:leftmost-captures on capturing groups
  * new syntax (! ...) for non-capturing groups
  * It is also possible to flip defaults with --invert-captures option or re2c:invert_captures configuration, 
    so that (...) is a capturing group and (! ...) is a non-capturing one
  * TDFA paper and removal of experimental algorithms
  * internal codebase , build system and CI improvements
  
  see details at https://re2c.org/releases/release_notes.html#release-3-1

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- update to 3.0:
  - Added code generation backend for Rust:
  - Added options:
    + ``--loop-switch``
    + ``--no-unsafe``
  - Added configurations;
    + ``re2c:label:yyloop``
    + ``re2c:unsafe``
  - Renamed options to use common naming scheme. The old names are supported as
    aliases, so the change does not break existing code. Documentation has been
    updated to use new names.
    + ``--api`` is a new alias for ``--input``
    + ``--ebcdic`` is a new alias for ``--ecb``
    + ``--ucs2`` is a new alias for ``--wide-chars``
    + ``--utf32`` is a new alias for ``--unicode``
    + ``--utf16`` is a new alias for ``--utf-16``
    + ``--utf8`` is a new alias for ``--utf-8``
    + ``--header`` is a new alias for ``--type-header``
  - Renamed configurations to use common naming scheme and support proper scoping
    under subcategories such as ``:define``, ``:label``, ``:variable``, etc. The
    old names are supported as aliases, so the change does not break existing
    code. Documentation has been updated to use new names.
    + ``re2c:api`` is a new alias for ``re2c:flags:input``
    + ``re2c:bit-vectors`` is a new alias for ``re2c:flags:bit-vectors``
    + ``re2c:case-insensitive`` is a new alias for ``re2c:flags:case-insensitive``
    + ``re2c:case-inverted`` is a new alias for ``re2c:flags:case-inverted``
    + ``re2c:case-ranges`` is a new alias for ``re2c:flags:case-ranges``
    + ``re2c:cond:prefix`` is a new alias for ``re2c:condprefix``
    + ``re2c:cond:enumprefix`` is a new alias for ``re2c:condenumprefix``
    + ``re2c:computed-gotos`` is a new alias for ``re2c:flags:computed-gotos``

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- BuildRequire python3-base instead of full python3: allow to be
  slimmer.

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- update 2.2:
  - Added named blocks and block lists in directives.
  - Added local blocks ``/*!local:re2c ... */``.
  - Added in-block ``!include`` directive.
  - Added in-block ``!use`` directive.
  - Allowed reusable blocks without ``-r --reusable`` option.
  - Allowed customizing the generated code with configurations for directives
    ``max:re2c``, ``maxnmatch:re2c``, ``stags:re2c``, ``mtags:re2c`` and
    ``types:re2c`` (see directive descriptions for details).
  - Forbid arbitrary text at the end of ``max:re2c`` directive. This may break
    backwards compatibility, although it is unlikely that this was used by anyone.
    The change was necessary in order to allow customization of the generated code
    with configurations.
  - Deprecated configurations ``flags:i``, ``flags:no-debug-info`` in favour of
    the global options ``-i``, ``--no-debug-info``.
  - Reimplemented re2c test runner in Python (thanks to
    `Serghei Iakovlev <https://github.com/sergeyklay>`_). Improved integration
    with GitHub Actions.
  - Changes in the experimental libre2c library: added new algorithms that
    construct t-string or extract submatch on all repetitions; added TDFA
    benchmark written in Java by Angelo Borsotti.
  - Updated documentation.
- Add python >= 3.7 dependency required by new tests.
  - Upstream added some tests written in python. The tests failed locally
    because the module dataclasses from python >= 3.7 were missing. On OBS
    the builds failed due to a timeout when trying to run those python tests.

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- update to 2.1.1:
  - Added missing CMakeLists.txt to release tarballs
  - Added GitHub Actions CI for Linux, macOS and Windows and fixed numerous build
    issues on those platforms
  - Added benchmarks for submatch extraction in lexer generators (ragel vs.
    kleenex vs. re2c with TDFA(0), TDFA(1) or sta-DFA algorithms).
    + New CMake options: ``-DRE2C_BUILD_BENCHMARKS``, ``-DRE2C_REGEN_BENCHMARKS``
    + New `json2pgfplot.py
  - Added option ``--depfile <filename>`` to generate build dependency files
  - Added option ``--fixed-tags <none | all | toplevel>`` and improved fixed-tag
    optimization to work with nested tags.
  - Added lzip to the distribution tarballs.
  - Added registerless-TDFA algorithm in the experimental libre2c library.
  - Explicitly disallowed invalid configuration when ``-f``, ``--storable-state``
    option is used, but ``YYFILL`` is disabled
  - Fixed bug in UTF-8 decode for 4-bytes rune
  - Fixed bugs in rare cases of the end-of-input rule ``$`` usage
  - Optimized ``--skeleton`` generation time.
  - Renamed internal option ``--dfa`` to ``--nested-negative-tags``.
  - Updated documentation for end of input handling and submatch extraction.

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- update to 2.0.3:
  - Fix issues when building re2c as a CMake subproject
  - Final corrections in the SIMPA article "RE2C: A lexer generator based on
  lookahead-TDFA", https://doi.org/10.1016/j.simpa.2020.100027

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- Update to version 2.0.2:
  * Go backend. The new Go code generation backend can be used either
    with a --lang go re2c option, or as a standalone re2go binary 
  * Free-form generic API. Generic API now supports two styles
  * Improved reuse mode and start conditions
  * Backwards incompatible changes:
    + Generic APIs YYSHIFT/YYSHIFTSTAG/YYSHIFTMTAG have been added
    + Generic APIs YYSTAGPD/YYMTAGPD have been removed
    + The re2c:flags:type-header option now treats the header filename
      as relative to the output directory
    + Some internal labels have been renamed, in particular the
      yyFillLabel prefix has been replaced with yyfill

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- Update to version 1.3:
  * Added option: ``--stadfa``.
  * Added warning: ``-Wsentinel-in-midrule``.
  * Added generic API primitives:
    + ``YYSTAGPD``
    + ``YYMTAGPD``
  * Added configurations:
    + ``re2c:sentinel = 0;``
    + ``re2c:define:YYSTAGPD = "YYSTAGPD";``
    + ``re2c:define:YYMTAGPD = "YYMTAGPD";``
  * Worked on reproducible builds

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- Update to version 1.2.1:
  * Lots of changes, see provided CHANGELOG
- Drop no longer needed re2c-nogenerationdatedefault.patch
- Enable profile guided optimization during build

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  * Fixed bug #211 re2c '-V' throws 'std::out_of_range' (version to vernum conversion).
  * Replaced Kuklewicz POSIX disambiguation algorithm with Okui algorithm.
  * Optimized GOR1 algorithm (computation of tagged epsilon-closure).
  * Added option "--conditions" (an alias for "-c" and "--start-conditions").
  * Fixed bug #201 Bugs with option: 're2c:flags:no-debug-info'.
  * Reworked first part of TDFA paper.

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- Update re2c to 1.1.1
From the CHANGELOG:
Version 1.1.1 (2018-08-30)
--------------------------
- Fixed bug #211 re2c '-V' throws 'std::out_of_range' (version to vernum conversion).
Version 1.1 (2018-08-27)
--------------------------
- Replaced Kuklewicz POSIX disambiguation algorithm with Okui algorithm.
- Optimized GOR1 algorithm (computation of tagged epsilon-closure).
- Added option "--conditions" (an alias for "-c" and "--start-conditions").
- Fixed bug #201 Bugs with option: 're2c:flags:no-debug-info'.
- Reworked first part of TDFA paper.

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baserev update by copy to link target

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