tldr/pages/common/lex.md

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