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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

--hex use hexadecimal numbers instead of octal in debug outputs

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