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Regexp::DefaultFlags - Set default flags on regular expressions


This document describes version 0.01 of Regexp::DefaultFlags released September 28, 2004.


    use Regexp::DefaultFlags;

    # Match /ab[c-z]d/, but lay the pattern out more readably...
    $str =~ / a b [c-z]   # Not fussy on the third letter
                d         # But fussy again on the fourth


When this module is use'd, it causes regexes in the current namespace to act as if the /xms flags had been applied to them.

See perlre for more details and caveats on these flags.

If an argument is passed to the use statement, the module uses the flags specified in that argument instead of /xms. The replacement flags can be specified in any of the following ways:

    use Regexp::DefaultFlags qw( /x /i /m );
    use Regexp::DefaultFlags qw( /xim );
    use Regexp::DefaultFlags qw( xim );


 File                        stmt branch cond   sub pod  time total
 lib/Regexp/ 100.0  100.0  n/a 100.0 n/a 100.0 100.0
 Total                      100.0  100.0  n/a 100.0 n/a 100.0 100.0


Damian Conway (


Autrijus Tang <>, Brian Ingerson <>.


   Copyright (c) 2004, Damian Conway. All Rights Reserved.
 This module is free software. It may be used, redistributed
     and/or modified under the same terms as Perl itself.