Perl Unicode Cookbook: Extract by Grapheme Instead of Codepoint (regex)


Remember that Unicode defines a grapheme as "what a user thinks of as a character". A codepoint is an integer value in the Unicode codespace. While ASCII conflates the two, effective Unicode use respects the difference between user-visible characters and their representations.

Use the \X regex metacharacter when you need to extract graphemes from a string instead of codepoints:

 # match and grab five first graphemes

Previous: ℞ 29: Match Unicode Grapheme Cluster in Regex

Series Index: The Standard Preamble

Next: ℞ 31: Extract by Grapheme Instead of Codepoint (substr)

Visit the home of the Perl programming language:

Sponsored by

Monthly Archives

Powered by Movable Type 5.13-en