单词 | rl | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
释义 | RLRLRLRLRL(1)"Firiss laughs in RL" means that Firiss's player is laughing. Opposite: VR. rl(2)The RL files contain code for defining relational grammarsand using them in a bottom-up parser to recognise and/or parseexpressions in Relational Languages. The approach is a simplification of that described inWittenburg, Weitzman, and Talley (1991), Unification-BasedGrammars and Tabular Parsing for Graphical Languages, Journalof Visual Languages and Computing 2:347-370. This code isdesigned to support the definition and parsing of RelationalLanguages, which are characterised as sets of objects standingin user-defined relations. Correctness and completeness is independent of the order inwhich the input is given to the parser. Data to be parsed canbe in many forms as long as an interface is supported forqueries and predicates for the relations used in grammarproductions. To date, this software has been used to parse recursivepen-based input such as math expressions and flow charts; tocheck for data integrity and design conformance in databases;to automatically generate constraints in drag-and-drop stylegraphical interfaces; and to generate graphical displays byparsing relational data and generating output code. requires: Common Lisp ports: Allegro Common Lisp 4.1, Macintosh Common Lisp 2.0 ftp://flash.bellcore.com/rl/. RL"Real life." See digispeak.RL
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