RegExLib.com Regular Expression Cheat Sheet (.NET) |
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Character Escapes http://tinyurl.com/5wm3wl | |
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Escaped Char | Description |
ordinary characters | Characters other than . $ ^ { [ ( | ) ] } * + ? \ match themselves. |
\a | Matches a bell (alarm) \u0007. |
\b | Matches a backspace \u0008 if in a []; otherwise matches a word boundary (between \w and \W characters). |
\t | Matches a tab \u0009. |
\r | Matches a carriage return \u000D. |
\v | Matches a vertical tab \u000B. |
\f | Matches a form feed \u000C. |
\n | Matches a new line \u000A. |
\e | Matches an escape \u001B. |
\040 | Matches an ASCII character as octal (up to three digits); numbers with no leading zero are backreferences if they have only one digit or if they correspond to a capturing group number. (For more information, see Backreferences.) For example, the character \040 represents a space. |
\x20 | Matches an ASCII character using hexadecimal representation (exactly two digits). |
\cC | Matches an ASCII control character; for example \cC is control-C. |
\u0020 | Matches a Unicode character using a hexadecimal representation (exactly four digits). |
\* | When followed by a character that is not recognized as an escaped character, matches that character. For example, \* is the same as \x2A. |
Character Classes http://tinyurl.com/5ck4ll | |
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Char Class | Description |
. | Matches any character except \n. If modified by the Singleline option, a period character matches any character. For more information, see Regular Expression Options. |
[aeiou] | Matches any single character included in the specified set of characters. |
[^aeiou] | Matches any single character not in the specified set of characters. |
[0-9a-fA-F] | Use of a hyphen (–) allows specification of contiguous character ranges. |
\p{name} | Matches any character in the named character class specified by {name}. Supported names are Unicode groups and block ranges. For example, Ll, Nd, Z, IsGreek, IsBoxDrawing. |
\P{name} | Matches text not included in groups and block ranges specified in {name}. |
\w | Matches any word character. Equivalent to the Unicode character categories [\p{Ll}\p{Lu}\p{Lt}\p{Lo}\p{Nd}\p{Pc}]. If ECMAScript-compliant behavior is specified with the ECMAScript option, \w is equivalent to [a-zA-Z_0-9]. |
\W | Matches any nonword character. Equivalent to the Unicode categories [^\p{Ll}\p{Lu}\p{Lt}\p{Lo}\p{Nd}\p{Pc}]. If ECMAScript-compliant behavior is specified with the ECMAScript option, \W is equivalent to [^a-zA-Z_0-9]. |
\s | Matches any white-space character. Equivalent to the Unicode character categories [\f\n\r\t\v\x85\p{Z}]. If ECMAScript-compliant behavior is specified with the ECMAScript option, \s is equivalent to [ \f\n\r\t\v]. |
\S | Matches any non-white-space character. Equivalent to the Unicode character categories [^\f\n\r\t\v\x85\p{Z}]. If ECMAScript-compliant behavior is specified with the ECMAScript option, \S is equivalent to [^ \f\n\r\t\v]. |
\d | Matches any decimal digit. Equivalent to \p{Nd} for Unicode and [0-9] for non-Unicode, ECMAScript behavior. |
\D | Matches any nondigit. Equivalent to \P{Nd} for Unicode and [^0-9] for non-Unicode, ECMAScript behavior. |