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Implementations: ayacc, YAY, {perln-byacc}, SASL-Yacc - "Yacc in SASL - An Exercise in Functional Programming", Simon Peyton-Jones, Software Prac & Exp 15:807-820 (1985). Mentions also a BCPL implementation. Yacc++ - 1990. An object-oriented rewrite of yacc, supports regular expressions, produces an {LR1 grammar} parser. ["YACC Meets C++", S.C. Johnson, USENIX Spring '88 Conf]. Chris Clark, Compiler Resources Inc, +1 (508) 435-5016. MLYACC - Implementation and output in SML/NJ. {(ftp:research.att.com/dist/ml/75.tools.tar.Z)}. A version, by David Poole at Montana University has been retargeted to Turbo Pascal. {(ftp://iecc.com/pub/file/lyprg.zip)}. See also Bison, yet another, Yet Another Yacc. Unix manual page: yacc(1). [ スポンサード リンク
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