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lex - Online in the Cloud

Run lex in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command lex that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


flex - the fast lexical analyser generator

SYNOPSIS


flex [OPTIONS] [FILE]...

DESCRIPTION


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)

Debugging:
-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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