Three years after the initial announcement here at LtU of the YARD parsing framework, I've finally posted version 1.0 of YARD. I figure despite being self-promotional (I figure it is a forum quality, if not quite meritorious of front-page status), this post should still be relevant to LtU readers because of its overlap with other LtU topics:
Of course many readers of LtU are language implementers and may find a new parsing framework useful or inspirational.
Below is the official announcement of YARD:
Version 1.0 of the YARD parsing framework for C++ is now available for download at http://sourceforge.net/project/showfiles.php?group_id=126822. The YARD project now also has a new tutorial, written with the help of Max Lybbert, that provides an introduction to language parsing and parsing expression grammars http://yard-parser.sourceforge.net/cgi-bin/index.cgi?dest=Documents&doc=tutorial.
The YARD framework uses a novel template meta-programming technique to construct efficient recursive-descent parsers at compile-time. YARD parsers are constructed as parsing expression grammars expressed using templates in a form resembling EBNF. Parsers constructed using YARD combine lexing and parsing phases, and can automatically generate abstract syntax trees, without requiring a separate code-generation phase.
The YARD framework has been under development for three years and has spawned other related projects (e.g. the Biscuit parsing library, http://p-stade.sourceforge.net/biscuit/index.html ). YARD has been used in commercial tools (e.g. http://www.tmg.de/admin.local/lib/antenna/linux/ReadMe.txt) and various open-source projects (e.g. http://www.cat-language.com).
The YARD library is public domain ( http://creativecommons.org/licenses/publicdomain/ ) but for those who require a release with a specific open-source license, can request one on the discussion group ( http://sourceforge.net/forum/forum.php?forum_id=432769 ).
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