Skip to Main Content
Regular Expression Pocket Reference, 2nd Edition
book

Regular Expression Pocket Reference, 2nd Edition

by Tony Stubblebine
July 2007
Intermediate to advanced content levelIntermediate to advanced
128 pages
2h 39m
English
O'Reilly Media, Inc.
Content preview from Regular Expression Pocket Reference, 2nd Edition

Unicode Support

Perl provides built-in support for Unicode 3.2, including full support in the \w, \d, \s, and \b metasequences.

The following constructs respect the current locale if use locale is defined: case-insensitive (i) mode, \L, \l, \U, \u, \w, and \W.

Perl supports the standard Unicode properties (see Table 3) as well as Perl-specific composite properties (see Table 10). Scripts and properties may have an Is prefix, but do not require it. Blocks require an In prefix only if the block name conflicts with a script name.

Table 1-10. Perl composite Unicode properties

Property

Equivalent

IsASCII

[\x00-\x7f]

IsAlnum

[\p{Ll}\p{Lu}\p{Lt}\p{Lo}\p{Nd}]

IsAlpha

[\p{Ll}\p{Lu}\p{Lt}\p{Lo}]

IsCntrl

\p{C}

IsDigit

\p{Nd}

IsGraph

[^\p{C}\p{Space}]

IsLower

\p{Ll}

IsPrint

\P{C}

IsPunct

\p{P}

IsSpace

[\t\n\f\r\p{Z}]

IsUppper

[\p{Lu}\p{Lt}]

IsWord

[_\p{Ll}\p{Lu}\p{Lt}\p{Lo}\p{Nd}]

IsXDigit

[0-9a-fA-F]

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

PHP Advanced for the World Wide Web: Visual QuickPro Guide

PHP Advanced for the World Wide Web: Visual QuickPro Guide

Larry Ullman
PHP 5 Power Programming

PHP 5 Power Programming

Andi Gutmans, Stig Sæther Bakken, Derick Rethans

Publisher Resources

ISBN: 9780596514273Errata Page