An intelligible guide to Unicode in Perl 5

This guide should help you understand how Unicode works in Perl 5. Feel free to improve it by opening issues or submitting a pull request.

You can read each chapter by opening it or using the following links:

• 01: Perl strings
• 02: The unicode_strings feature
• 03: The -C command-line option
• 04: Some Unicode warnings
• 05: The utf8 pragma
• 06: The utf8:: encoding and decoding functions
• 07: The utf8:: upgrading and downgrading functions
• 08: The Encode module
• 09: Case-folding and the fc function
• 10: Graphemes and the regular expression atom \X
• 11: Non-characters
• 12: The regular expression flag /a
• 13: PerlIO layers
• 14: Standard Unicode modules

Additional resources

• Unicode Introduction at perltuts.com
• The Standard Documentation that ships with Perl:
  • perlunicode
  • perlunicook
  • perlunifaq
  • perluniintro
  • perlunitut
• Tom Christiansen's answers page on Stackoverflow

License

This document is made available under the CC-BY-SA license.