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FLEX(1)				 User Commands			       FLEX(1)

       flex - the fast lexical analyser generator

       flex [OPTIONS] [FILE]...

       Generates programs that perform pattern-matching on text.

   Table Compression:
       -Ca, --align
	      trade off larger tables for better memory alignment

       -Ce, --ecs
	      construct equivalence classes

       -Cf    do not compress tables; use -f representation

       -CF    do not compress tables; use -F representation

       -Cm, --meta-ecs
	      construct meta-equivalence classes

       -Cr, --read
	      use read() instead of stdio for scanner input

       -f, --full
	      generate fast, large scanner. Same as -Cfr

       -F, --fast
	      use alternate table representation. Same as -CFr

       -Cem   default compression (same as --ecs --meta-ecs)

       -d, --debug
	      enable debug mode in scanner

       -b, --backup
	      write backing-up information to lex.backup

       -p, --perf-report
	      write performance report to stderr

       -s, --nodefault
	      suppress default rule to ECHO unmatched text

       -T, --trace
	      flex should run in trace mode

       -w, --nowarn
	      do not generate warnings

       -v, --verbose
	      write summary of scanner statistics to stdout

       -o, --outfile=FILE
	      specify output filename

       -S, --skel=FILE
	      specify skeleton file

       -t, --stdout
	      write scanner on stdout instead of lex.yy.c

	      name of C++ class

	      create a C header file in addition to the scanner

       --tables-file[=FILE] write tables to FILE

   Scanner behavior:
       -7, --7bit
	      generate 7-bit scanner

       -8, --8bit
	      generate 8-bit scanner

       -B, --batch
	      generate batch scanner (opposite of -I)

       -i, --case-insensitive
	      ignore case in patterns

       -l, --lex-compat
	      maximal compatibility with original lex

       -X, --posix-compat
	      maximal compatibility with POSIX lex

       -I, --interactive
	      generate interactive scanner (opposite of -B)

	      track line count in yylineno

   Generated code:
       -+,  --c++
	      generate C++ scanner class

	      #define macro defn  (default defn is '1')

       -L,  --noline
	      suppress #line directives in scanner

       -P,  --prefix=STRING
	      use STRING as prefix instead of "yy"

       -R,  --reentrant
	      generate a reentrant C scanner

	      scanner for bison pure parser.

	      include yylloc support.

	      initialize yyin/yyout to stdin/stdout

       --noansi-definitions old-style function definitions

	      empty parameter list in prototypes

	      do not include <unistd.h>

	      do not generate a particular FUNCTION

       -c     do-nothing POSIX option

       -n     do-nothing POSIX option


       -h, --help
	      produce this help message

       -V, --version
	      report flex version

       The  full documentation for flex is maintained as a Texinfo manual.  If
       the info and flex programs are properly installed  at  your  site,  the

	      info flex

       should give you access to the complete manual.

flex 2.5.36			   July 2012			       FLEX(1)