History: YACC

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YACC, an acronym for "Yet Another Compiler Compiler", is the name of a program which takes the description of a ((LALR))(1) grammar and generates C code able to parse this grammar as output, written a long time ago (1974-75) for ((UNIX)) systems. The name itself comes from the fact that such a program is often used when developing a ((compiler)) (language translation program, usually programming language to computer bytecode/assembly), while being a compiler itself. Today several YACC-style programs do exist, of which bison is probably the most well-known. Also, it is very common to call a "YACC grammar" any grammar which is a valid input for YACC. (''As well as sort of silly...'') LALR grammars are difficult to debug when conflicts occur. A tool called ((YCA)) "Yacc Conflict Analyzer" can be used to sort out why Yacc has encountered ambiguities.

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Tue 10 of Jun, 2014 04:20 GMT mukti from 68.173.146.212	2		Actions View Source
Thu 06 of Mar, 2003 03:29 GMT ChuiTey from 210.18.214.26 created from phpwiki import	1		Actions View Source

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