PEGTL 2.5.1

• Added new convenience rule opt_must.
• Optimised convenience rule if_must.
• Fixed examples to compile with Visual Studio and MinGW.
• Added automated testing with GCC 8.

PEGTL 2.5.0

• Added rules to match Unicode properties via ICU to contrib.
• Improved the Parse Tree / AST interface.
• Fixed parse tree node generation to correctly remove intermediate nodes.
• Added big- and little-endian support to the UTF-16 and UTF-32 rules.
• Added rules for UINT-8 and big- and little-endian UINT-16, UINT-32 and UINT-64.
• Added function to memory_input<> to obtain the line around a position.
• Added function to memory_input<> to start again from the beginning.
• Added example for Python-style indentation-aware grammars.
• Added examples for regular, context-free, and context-sensitive grammars.
• Added example for how to parse with a symbol table.
• Added automated testing with Clang 6.
• Added automated testing with Clang's -fms-extensions.
• Fixed build with Clang when -fms-extensions is used (clang-cl).

PEGTL 2.4.0

• Improved and documented the Parse Tree / AST support.
• Changed prefix of all macros from TAOCPP_PEGTL_ to TAO_PEGTL_. Compatibility macros with the old names are provided, they will be removed in version 3.0.
• Added a deleted overload to prevent creating a memory_input<> from a temporary std::string.

PEGTL 2.3.4

• Fixed build on older systems where O_CLOEXEC is not available.
• Added automated testing with Android 6.0 and 7.0.

PEGTL 2.3.3

• Added more noexcept-specifications.
• Fixed most clang-tidy-issues.

PEGTL 2.3.2

• Worked around a Visual Studio 15.5 bug.

PEGTL 2.3.1

• Fixed linkage of tao::pegtl::internal::file_open.
• Improved error message for missing source parameter of string_input<>.

PEGTL 2.3.0

• Added constructor to read_input<> that accepts a FILE*, see issue #78.
• Enhanced apply<>, apply0<> and if_apply<> to support apply()/apply0()-methods returning boolean values.
• Simplified implementation of raw_string, the optional Contents... rules' apply()/apply0()-methods are now called with the original states.
• Fixed the tracer to work with apply()/apply0()-methods returning boolean values. (Thanks Joel Frederico)
• Fixed, simplified and improved examples/parse_tree.cpp.

PEGTL 2.2.2 "10th anniversary edition"

• Fixed missing call to the control class' failure()-method when a rule with an apply()-method with a boolean return type fails.
• Fixed string handling in examples/abnf2pegtl.cc.
• Simplified/improved Android build.

(this is a re-release of 2.2.1 to fix the version number reported by CMake and version.hpp)

PEGTL 2.2.1 "10th anniversary edition"

• Fixed missing call to the control class' failure()-method when a rule with an apply()-method with a boolean return type fails.
• Fixed string handling in examples/abnf2pegtl.cc.
• Simplified/improved Android build.