tldr/pages/common/flex.md

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2017-12-30 16:16:30 +00:00
# flex
> Lexical analyser generator. Based on lex.
> Given the specification for a lexical analyser, generates C code implementing it.
- Generate an analyser from a flex file:
`lex {{analyser.l}}`
- Specify the output file:
`lex {{analyser.l}} --outfile {{analyser.c}}`
- Compile a C file generated by flex:
`cc {{path/to/lex.yy.c}} --output {{executable}}`