perldoc > Regexp::Common::whitespace

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📖 NAME

Regexp::Common::whitespace — provides a regex for leading or trailing whitespace

🚀 Quick Reference

Use Case	Command	Description
Remove leading/trailing whitespace	$str =~ s/$RE{ws}{crop}//g	Deletes any whitespace at the beginning or end of a string
Optimized substitution	$RE{ws}{crop}->subs($str)	Performs the same removal using the in-place substitution method

📝 SYNOPSIS

use Regexp::Common qw /whitespace/;

while (<>) {
    s/$RE{ws}{crop}//g;           # Delete surrounding whitespace
}

📚 DESCRIPTION

Please consult the manual of Regexp::Common for a general description of the works of this interface.

Do not use this module directly, but load it via Regexp::Common.

🔍 $RE{ws}{crop}

⏳ Returns a pattern that identifies leading or trailing whitespace.

Example:

$str =~ s/$RE{ws}{crop}//g;     # Delete surrounding whitespace

The call:

$RE{ws}{crop}->subs($str);

🔧 is optimized (but probably still slower than doing the s///g explicitly).

This pattern does not capture under -keep.

🔗 SEE ALSO

Regexp::Common for a general description of how to use this interface.

👤 AUTHOR

Damian Conway (damian AT conway.org)

🔧 MAINTENANCE

This package is maintained by Abigail (regexp-common AT abigail.be).

🐛 BUGS AND IRRITATIONS

Bound to be plenty.

For a start, there are many common regexes missing. Send them in to regexp-common AT abigail.be.

📄 LICENSE AND COPYRIGHT

This software is Copyright (c) 2001 - 2017, Damian Conway and Abigail.

This module is free software, and may be used under any of the following licenses:

• 1) The Perl Artistic License. See the file COPYRIGHT.AL.
• 2) The Perl Artistic License 2.0. See the file COPYRIGHT.AL2.
• 3) The BSD License. See the file COPYRIGHT.BSD.
• 4) The MIT License. See the file COPYRIGHT.MIT.

📖 NAME 🚀 Quick Reference 📝 SYNOPSIS 📚 DESCRIPTION 🔗 SEE ALSO 👤 AUTHOR 🔧 MAINTENANCE 🐛 BUGS AND IRRITATIONS 📄 LICENSE AND COPYRIGHT