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Some escape sequences, called character class escape sequences, can be used to specify multiple characters at one location. Table C-5 lists some character class escape sequences that you can use as shortcuts for commonly matched character groupings when you’re building custom regular expressions.
Expression | Description |
---|---|
\d | Any digit |
\D | Any non-digit |
\p{L} | Any letter |
\p{Lu} | Any lowercase letter |
\p{Ll} | Any uppercase letter |
\p{N} | Any number |
\p{P} | Any punctuation |
\p{Z} | Any separator character |
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