lexical parsing stream

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• Lexical analysis — In computer science, lexical analysis is the process of converting a sequence of characters into a sequence of tokens. Programs performing lexical analysis are called lexical analyzers or lexers. A lexer is often organized as separate scanner and …   Wikipedia

• Parsing — In computer science and linguistics, parsing, or, more formally, syntactic analysis, is the process of analyzing a sequence of tokens to determine their grammatical structure with respect to a given (more or less) formal grammar.Parsing is also… …   Wikipedia

• lexical analysis — noun The conversion of a stream of characters to a stream of meaningful tokens; normally to simplify parsing. While its often not difficult to identify tokens while parsing, having a separate stage for lexical analysis simplifies the structure of …   Wiktionary

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• lex — verb /lɛks/ To perform lexical analysis; to convert a character stream to a token stream as a preliminary to parsing. Once this is done, each processor parses and lexes its own documents, using conventional programming techniques …   Wiktionary