Projects / Berkeley Yacc

Berkeley Yacc

Berkeley Yacc (byacc) is a high-quality yacc variant. In contrast to Bison, it is written to avoid dependencies upon a particular compiler. It was written around 1990 by Robert Corbett, the original author of Bison. This version has been modified to conform to ANSI C.

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  •  16 Jan 2012 01:09

    Release Notes: This release adds an "-s" option to suppress extra #define's from %token directive string literals, for better conformance to original yacc. It improves/extends support for %pure-parser, including cross-checking test-cases against bison behavior.

    Release Notes: This release adds a command-line option that creates an interface-file, which is useful for separate compilation of lex/yacc modules. There are also some minor bugfixes.

    •  30 Dec 2010 04:08

    Release Notes: Several minor fixes/improvements from NetBSD.

    •  27 Dec 2010 01:34

    Release Notes: Portability fixes for MinGW.

    •  27 Nov 2010 03:48

    Release Notes: Improved compatibility with bison's %parse-param directive, e.g., for yyerror() parameters. An additional fix for redeclaration of YYSTYPE, as well as several minor fixes.

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