dor@lanl.gov (David Rich) (12/23/88)
+ +Date: Mon, 19 Dec 88 22:26:28 EST +From: "James H. Coombs" <jhc@iris> +To: dor@beta.LANL.GOV +Subject: Re: YACC/LEX Equivalents +Status: R + + +I have written an S-R parser. Much more flexible and powerful than +YACC. (It will generate four types of parsers: SLR(0), SLR(1), LR(1), +and LALR(1)). I currently use it for parsing English. I have +augmented the CFG with tests and actions: features, registers, etc. +I use GPSG formalism for unbounded movement. Typed-lambda calculus +semantic rules interleaved with the syntactic rules. + +When things cool down a little, I hope to clean it up for +distribution. I have not decided exactly what to distribute, so I am +interested in hearing what people are interested in. The full-blown +NLU version is not ready to go, but it won't take much to strip it down +to something useful and reliable. + +My access to the News groups is shaky, so I would appreciate it if +someone would post this information to the LISP group. + +Thanks. --Jim + +Dr. James H. Coombs +Software Engineer, Research +Institute for Research in Information and Scholarship (IRIS) +Brown University + Done. --Dave