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Categories / Java / Regular Expressions

 

POSIX character classes and Java character classes

Character Class Meta-Character               Matches \p{Lower}                                    Lowercase letter [a-z] \p{Upper}                                    Uppercase letter [A-Z] \p{ASCII}                                    All ASCII [\x00-\x7F] \p{Alpha}                                    Any lowercase or uppercase letter \p{Digit}                                    A digit [0-9] \p{Alnum}                                    Any letter or digit \p{Punct}                                    Punctuation [!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~] \p{Graph}                                    A visible character: any letter, digit, or punctuation \p{Print}                                    A printable character; same as \p{Graph} \p{Blank}                                    A space or tab [ \t] \p{Cntrl}                                    A control character [\x00-\x1F\x7F] \p{XDigit}                                   Hexadecimal digit  [0-9a-fA-F] \p{Space}                                    A whitespace character [ \t\n\x0B\f\r]