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:

flex {{analyser.l}}

Specify the output file:

flex {{analyser.l}} --outfile {{analyser.c}}

Compile a C file generated by flex:

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