Feature: Character Class Subtraction

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Character Class Subtraction allows you to exclude a class of characters from another class of characters in a character class.

Engines

Engine	Supported
Perl	✔
PCRE	❌
Boost.Regex	❌
.NET	✔
Oniguruma	✔
Hyperscan	❌
ICU	✔
Glib/GRegex	❌
ECMAScript	❌

See Also

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• Character Classes
• Posix Character Classes
• Negated Posix Character Classes
• Collating Elements
• Equivalence Classes
• Character Class Escapes
• Line Endings Escape
• Character Property Escapes
• Character Class Nested Set
• Character Class Intersection
• Character Class Union
• Character Class Symmetric Difference
• Character Class Complement