<language> An algorithm or program to determine the syntactic structure of ("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 generators 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.
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Nearby terms: PARS « parse « PARSEC « parser » parser generator » parsing » Parsley