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tldr/pages/common/lex.md
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*: capitalize the first letter after "Note:" (#16226)
Co-authored-by: Machiavelli <145562237+MachiavelliII@users.noreply.github.com>
2025-05-04 05:15:17 +03:00

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# lex
> Lexical analyzer generator.
> Given the specification for a lexical analyzer, generates C code implementing it.
> Note: On most major OSes, this command is an alias for `flex`.
> More information: <https://manned.org/lex>.
- Generate an analyzer from a Lex file, storing it to the file `lex.yy.c`:
`lex {{analyzer.l}}`
- Specify the output file:
`lex -t {{analyzer.l}} > {{analyzer.c}}`
- Compile a C file generated by Lex:
`c99 {{path/to/lex.yy.c}} -o {{executable}}`