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Regular Expression Unicode Categories Reference

This table explains which syntax is supported for matching Unicode categories, which is one kind of Unicode property that flavors may support. The table does not list the names of all the Unicode categories because they are the same for all versions of Unicode. If a flavor supports a particular syntax for categories then it supports all categories with that syntax. You can find the list of categories in the tutorial section. Exactly which characters are matched by these categories depends on the Unicode version that the regex flavor is based on.

Feature	Syntax	Description	Example	JGsoft	Python	JavaScript	VBScript	XRegExp	.NET	Java	ICU	RE2	Perl	PCRE	PCRE2	PHP	Delphi	R	Ruby	std::regex	Boost	Tcl	POSIX	GNU	Oracle	XML	XPath
Unicode category	`\pL` where L is a single-letter Unicode category	Matches a single Unicode code point in the specified Unicode category.	`\pL` matches `à` encoded as U+00E0; `\pS` matches `©`	YES	no	no	no	YES	no	YES	no	default	YES	5.0	YES	YES	YES	YES	no	no	no	no	no	no	no	no	no
Unicode category	`\PL` where L is a single-letter Unicode category	Matches a single Unicode code point that is not in the specified Unicode category.	`\PS` matches `à` encoded as U+00E0; `\PL` matches `©`	YES	no	no	no	YES	no	YES	no	default	YES	5.0	YES	YES	YES	YES	no	no	no	no	no	no	no	no	no
Unicode category	`\p{Ll}` where Ll is a Unicode category	Matches a single Unicode code point in the specified Unicode category.	`\p{Ll}` matches `à` encoded as U+00E0; `\p{S}` matches `©`	YES	no	with /u	no	YES	YES	YES	YES	default	YES	5.0	YES	YES	YES	YES	1.9	no	no	no	no	no	no	YES	YES
Unicode category	`\p{IsLl}` where Ll is a single-letter or two-letter Unicode category	Matches a single Unicode code point in the specified Unicode category.	`\p{IsLl}` matches `à` encoded as U+00E0; `\p{IsS}` matches `©`	YES	no	no	no	no	no	YES	63	no	YES	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Unicode category	`\p{Category}`	Matches a single Unicode code point in the specified Unicode category.	`\p{Letter}` matches `à` encoded as U+00E0; `\p{Symbol}` matches `©`	YES	no	with /u	no	YES	no	no	YES	no	YES	no	no	no	no	no	1.9	no	no	no	no	no	no	no	no
Unicode category	`\p{IsCategory}`	Matches a single Unicode code point in the specified Unicode category.	`\p{IsLetter}` matches `à` encoded as U+00E0; `\p{IsSymbol}` matches `©`	YES	no	no	no	no	no	no	63	no	YES	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Unicode category	`\p{L&}`	Matches a single Unicode code point that is in the uppercase letter, lowercase letter, or titlecase letter category.	`\p{L&}` matches `A`, `a`, and `ǈ`.	YES	no	no	no	no	no	no	no	no	YES	6.5	YES	YES	YES	YES	no	no	no	no	no	no	no	no	no
Unicode category	`\p{Letter&}`	Matches a single Unicode code point that is in the uppercase letter, lowercase letter, or titlecase letter category.	`\p{Letter&}` matches `A`, `a`, and `ǈ`.	YES	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Unicode category	`\p{Lc}`	Matches a single Unicode code point that is in the uppercase letter, lowercase letter, or titlecase letter category.	`\p{Lc}` matches `A`, `a`, and `ǈ`.	no	no	with /u	no	YES	no	6	YES	no	YES	no	10.40	8.2.0	no	4.2.2	2.0	no	no	no	no	no	no	no	no
Unicode category	`\p{Cased_Letter}`	Matches a single Unicode code point that is in the uppercase letter, lowercase letter, or titlecase letter category.	`\p{Cased_Letter}` matches `A`, `a`, and `ǈ`.	V2	no	no	no	YES	no	no	YES	no	YES	no	no	no	no	no	2.0	no	no	no	no	no	no	no	no
Feature	Syntax	Description	Example	JGsoft	Python	JavaScript	VBScript	XRegExp	.NET	Java	ICU	RE2	Perl	PCRE	PCRE2	PHP	Delphi	R	Ruby	std::regex	Boost	Tcl	POSIX	GNU	Oracle	XML	XPath