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description of the tokens to be recognised in the form of regular expressions. It is similar to the tools lex and flex for C/C++. Alex takes a description of tokens based on regular expressions and generates a Haskell module containing code for scanning text efficiently. Alex is designed to be familiar to exisiting lex users, although it does depart from lex in a number of ways.
8 lines
451 B
Text
8 lines
451 B
Text
Alex is a tool for generating lexical analysers in Haskell, given a
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description of the tokens to be recognised in the form of regular
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expressions. It is similar to the tools lex and flex for C/C++.
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Alex takes a description of tokens based on regular expressions and
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generates a Haskell module containing code for scanning text
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efficiently. Alex is designed to be familiar to exisiting lex users,
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although it does depart from lex in a number of ways.
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