parser
<language >
An algorithm or program to determine the syntactic structure of ("to parse") a sentence or string of symbols in some language. A parser normally takes as input a sequence of tokens output by a lexical analyser. It may produce some kind of abstract syntax tree as output. A parser may be produced automatically from a grammar by a parser generator such as yacc. A parser is normally part of some larger program, like a compiler, which takes the output of the parser and attempts to extract meaning from it in some way, e.g. translating it into another language.
Last updated: 2009年06月26日
Nearby terms:
parse ♦ PARSEC ♦ parsed ♦ parser ♦ parser generator ♦ parsing ♦ Parsley
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