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+# flex
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+
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+> Lexical analyser generator. Based on lex.
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+> Given the specification for a lexical analyser, generates C code implementing it.
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+
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+- Generate an analyser from a flex file:
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+
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+`lex {{analyser.l}}`
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+
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+- Specify the output file:
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+
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+`lex {{analyser.l}} --outfile {{analyser.c}}`
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+
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+- Compile a C file generated by flex:
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+
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+`cc {{path/to/lex.yy.c}} --output {{executable}}`
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