NAME

Regexp::Stringify - Stringify a Regexp object

VERSION

This document describes version 0.01 of Regexp::Stringify (from Perl distribution Regexp-Stringify), released on 2015-01-06.

SYNOPSIS

 use Regexp::Stringify qw(stringify_regexp);
 $str = stringify_regexp(regexp=>qr/abc/i);                         # 'qr(abc)i'
 $str = stringify_regexp(regexp=>qr/abc/i, with_qr=>0);             # '(?i:abc)'
 $str = stringify_regexp(regexp=>qr/a/i, with_qr=>0, plver=>5.012); # '(?i-)a'
 $str = stringify_regexp(regexp=>qr/a/ui, plver=>5.012);            # 'qr(a)i'

FUNCTIONS

stringify_regexp(%args) -> str

Stringify a Regexp object.

This routine is an alternative to Perl's default stringification of Regexp object (i.e.:"$re") and has some features/options, e.g.: producing regexp string that is compatible with certain perl versions.

If given a string (or other non-Regexp object), will return it as-is.

Arguments ('*' denotes required arguments):

• plver => str

  Target perl version.

  Try to produce a regexp object compatible with a certain perl version (should at least be >= 5.10).

  For example, in perl 5.14 regex stringification changes, e.g. qr/hlagh/i would previously be stringified as (?i-xsm:hlagh), but now it's stringified as (?^i:hlagh). If you set plver to 5.10 or 5.12, then this routine will still produce the former. It will also ignore regexp modifiers that are introduced in newer perls.

  Note that not all regexp objects will be translated to older perls, e.g. if it contains constructs not known to older perls.

• regexp* => re

• with_qr => bool

  If you set this to 1, then qr/a/i will be stringified as 'qr/a/i' instead as '(^i:a)'.

Return value: (str)

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Regexp-Stringify.

SOURCE

Source repository is at https://github.com/perlancar/perl-Regexp-Stringify.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Regexp-Stringify

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2015 by perlancar@cpan.org.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.