OCAMLLEX(1)						      General Commands Manual						       OCAMLLEX(1)

NAME

       ocamllex - The Objective Caml lexer generator

SYNOPSIS

       ocamllex [ -o output-file ] [ -ml ] filename.mll

DESCRIPTION

       The ocamllex(1) command generates Objective Caml lexers from a set of regular expressions with associated semantic actions, in the style of
       lex(1).

       Running ocamllex(1) on the input file lexer.mll produces Caml code for a lexical analyzer in file lexer.ml.

       This file defines one lexing function per entry point in the lexer definition. These functions have the same names  as  the  entry  points.
       Lexing functions take as argument a lexer buffer, and return the semantic attribute of the corresponding entry point.

       Lexer  buffers  are  an	abstract  data	type  implemented  in  the standard library module Lexing. The functions Lexing.from_channel, Lex-
       ing.from_string and Lexing.from_function create lexer buffers that read from an input channel, a character string, or any reading function,
       respectively.

       When  used in conjunction with a parser generated by ocamlyacc(1), the semantic actions compute a value belonging to the type token defined
       by the generated parsing module.

OPTIONS

       The ocamllex(1) command recognizes the following options:

       -ml    Output code that does not use OCaml's built-in automata interpreter. Instead, the automaton is  encoded  by  Caml  functions.   This
	      option is mainly useful for debugging ocamllex(1), using it for production lexers is not recommended.

       -o output-file
	      Specify  the  name  of  the output file produced by ocamllex(1).	The default is the input file name, with its extension replaced by
	      .ml.

       -q     Quiet mode.  ocamllex(1) normally outputs informational messages to standard output.  They are suppressed if option -q is used.

       -v or -version
	      Print version string and exit.

       -vnum  Print short version number and exit.

       -help or --help
	      Display a short usage summary and exit.

SEE ALSO

       ocamlyacc(1).
       The Objective Caml user's manual, chapter "Lexer and parser generators".

																       OCAMLLEX(1)