lex

Lexical analyzer generator. Given the specification for a lexical analyzer, generates C code implementing it. More information: https://keith.github.io/xcode-man-pages/lex.1.html.

  • Generate an analyzer from a Lex file:

lex analyzer.l

  • Specify the output file:

lex analyzer.l --outfile analyzer.c

  • Compile a C file generated by Lex:

cc path/to/lex.yy.c --output executable