File:632.sip
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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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| current | 12:46, 8 May 2013 | (7.91 MB) | Gleki (talk | contribs) |
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