v9.0

For breaking changes, see v9 migration notes.

• Lowered .NET requrement thanks to Polysharp
• Feature parity with string.Format for better performance
• Introduced Commands (replacement for Block Commands)
  • New Map command for inline value mapping
  • Reworked Loop command to support sequences
• Formatter Definitions provide strongly-typed formatters in preference to custom format providers
  • Added TokenValueFormatException to handle formatting errors
• Improved library usability
  • InterpolatedStringResolver fleshed out to become preferred method over string extensions
  • TokenValueContainerBuilder is now fluent
  • Value Converters now support any function return type not just Func<string> and Func<object>
  • General convenience methods added
  • ObjectTokenValueContainer support for structs
• Better validation of Settings and arguments
  • Settings can also be validation ahead of use
• Internal structure improvements

v8.0

Reworked InterpolatedStringExpander for Block Commands

• Conditional block command replacing conditional prefixed token
• Loop block command
• ExpanderContext implementation
• ExpandedStringBuilder wraps StringBuilder

InterpolatedString

• InterpolatedStringSegment is now abstract with addition concrete types
• Tokens method updated to support block commands

Quality improvements

• Better input validation throughout
• Additional exception types and more consistent usages
• Tests now run against both .net 8 and .net framework 4.8

FrozenDictionary support in .net 8

TokenValueContainers

• Enforced TokenValueContainerFactory usage
• TokenValueContainer classes are now sealed with private constructors
• Frozen method on DictionaryTokenValueContainer and ObjectTokenValueContainer in .net 8

TokenValueConverters

• Renamed factory to TokenValueConverterFactory for better consistency
• Added ToStringConverter for easier support of classes with overridden ToString methods

v7.3

• Changed net48 target framework to netstandard2.0 (still needs C# 10)
• Added Parser support for .net7 regex source generation
• Updated default Condition token start and end markers to avoid conflict with format separator
• Tokens HashSet now strips Condition token markers
• Reworked Expander for performance and readability
• Added exception when token value cannot be converted due to missing converter

v7.2

• Added composite container builder TokenValueContainerBuilder with hierarchical container support (finally!)
• Supported ValueTuple as key/value pairs throughout
• Added Default settings property
• Added Tokenize method as TokenSyntax extension to get wrapped token names
• Replaced Moq with fakes to aid readability
• Bumped Test project nuget packages

v7.1

• Added Conditions, see additional features
• Added better FormatException handling including new default setting to throw on format error

v7.0

v7.0

v6.1

Re-added sign key