Slick V3.3 manual Unicode Category Specifications for Regular Expressions

Unicode Category Specifications

for Regular Expressions

Sample Brief Regular Expression	Description
	tice that the backslash must prefix the special char-
	acter *.
[\t ]	Matches tab and space characters.
[\d9\d32]	Matches tab and space characters.
[\x9\x20]	Matches tab and space characters.
p?t	Matches any three-letter string starting with the let-
	ter p and ending with the letter t. Two possible
	matches are pot and pat.
s*t	Matches the letter s followed by any number of
	characters followed by the nearest letter t. Two pos-
	sible matches are seat and st.
{for}{while}	Matches the strings for or while.
^\:p	Matches lines beginning with a file name.
xy+z	Matches x followed by one or more occurrences of
	y followed by z.

Unicode Category Specifications for Regular Expressions

The Unicode consortium standard regular expression categories are supported. The syntax for specifying categories is:

\p{MainCategoryLetter Subcategories}

The above syntax matches the categories specified. The following syntax matches all characters not in the categories specified:

\P{MainCategoryLetter Subcategories}

The \p and \P notations can only be used inside a character set specification. MainCategoryLetter can be L, M, N, P, S, Z, or C. The valid Subcategories depend on the MainCategoryLetter spe- cified. If no Subcategories are specified, all are assumed. For example:

•[\p{L}] matches all Unicode letters.

•[\p{Lul}] matches all uppercase and lowercase letters.

•[\P{L}] matches all characters that are not letters.

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