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CHANGELOG.md

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Changelog

3.2.3

Fixed

  • Overloads for parsing from ITokenStreams and ParseStates have been made public as originally intended. Thanks @katherinefluxinc!

3.2.2

Added

  • Support for AOT/trimming deployment scenarios.

3.2.1

Fixed

  • A critical bug in Try() which had been broken in 3.2.0.
    • Thanks to @PJB3005 for reporting this bug in #140

Added

  • Support for Source Link

3.2.0

Added

  • Four new combinators: ManyThen, AtLeastOnceThen, SkipManyThen, and SkipAtLeastOnceThen
    • These are versions of Until, AtLeastOnceUntil, SkipUntil, and SkipAtLeastOnceUntil which return the terminator.
    • Thanks to @chyyran and @atrauzzi, who asked for this in #121

Changed

  • Improved documentation for ExpressionParser, now including an example.
    • Thanks to @hswami, who asked for this in #113
  • Removed some Nuget dependencies which are no longer required (since they are part of .NET 5).

3.1.0

Added

  • A pair of parsers for enum values, Enum and CIEnum. Thanks @RomanSoloweow!

3.0.0

Removed

  • Removed support for .NET 4 and .NET Core 3.1. Pidgin is now a .NET 5 library.

Added

  • Published the (previously internal) TokenStream API. You can now write parsers which consume custom input streams.
  • Support for resumable parsing, through the ResumableTokenStream class.
  • An experimental API for writing your own parsers by subclassing Parser.

Changed

  • Parser.Real is now a property and not a method.
  • A new design for computing source positions. posCalculator now returns a SourcePosDelta struct representing the amount of text covered by a token, rather than updating the current source position in place.
    • Performance improvements in the code which computes source positions.
  • The Parse methods in ParseExtensions now take an IConfiguration object as an optional parameter (instead of a posCalculator func).
    • If you were using posCalculator, you can instead subclass DefaultConfiguration and override the PosCalculator property.
  • Performance improvements across the board thanks to a new Span-based implementation.
  • Performance improvements in SkipWhitespaces.
  • A new CI build system based on GitHub Actions.

2.5.0

Changed

  • Pidgin's assembly is now strong named.
  • Performance improvements to CurrentPos.
  • Internal simplifications to the error handling machinery.
  • Pidgin's PDBs are now distributed through nuget.org as a snupkg (not from smbsrc.net).

2.4.0

Added

  • CurrentOffset, which returns the number of tokens consumed
  • A new overload of Rec: Func<Parser<TToken, T> Rec(Func<Parser<TToken, T>, Parser<TToken, T>>)
  • Slice, a synonym of MapWithInput

Fixed

  • The Real parser now uses the invariant culture. Thank you @SigridAndersen for the contribution!

2.3.0

Added

  • Nullability checks

Fixed

  • A bug in HexNum. Thank you @comaid for the contribution!
  • Some ArrayPool leaks.
  • A bug causing Sequence to fail when its type argument was IComparable but not IEquatable

Changed

  • Significant performance improvements when parsing from a non-chunked in-memory source such as a string or an array.
  • SkipWhitespaces has been rewritten --- it should now run much faster

Removed

  • Support for netstandard1.3

2.2.0

Added

  • MapWithInput, giving access to a Span containing the input tokens which were matched by the parser.
  • An infix version of Map (synonym of Select).
  • Real, a parser for floating point values in the format +1.23e4

Changed

  • Under-the-hood performance improvements to the way SourcePos is handled
  • A faster implementation of CIString

2.1.0

Added

  • Overloads of ExpressionParser.Build to make recursive grammars more convenient

2.0.1

Fixed

  • An ArrayPool leak when certain parsers failed

2.0.0

Added

  • A ParserExtensions.Parse overload which accepts a ReadOnlySpan.
  • A compile target for netstandard2.0. This should simplify installation into .NET Framework projects.
  • Performance improvements across the board

Changed

  • Error handling was rewritten.
    • ParseError is now a class and not a struct.
    • Fewer items are reported in Expected.
  • Parser<TToken>.End is now a property and not a method.
  • Result<TToken, T> is now a class and not a struct.
  • When parsing from streaming inputs like Stream or TextReader, the stream will now usually advance beyond the last character consumed by the parser

Fixed

  • Fixed an internal potential memory leak due to the use of pooled memory