The following table describes character matching syntax:
Matches any character except \n. When within a character class, the . will be treated as a period character. |
|
Matches any single character in the specified set of characters. |
|
Matches any single character not in the specified set of characters. |
|
Use of a hyphen (-) allows specification of contiguous character ranges. |
|
Matches any character in the Unicode general category specified by name (for example, Ll, Nd, Z). See the "B.3Supported Unicode General Categories", for details on the Unicode general category. |
|
Matches any word character, which includes letters, digits, and underscores. |
|
Escaped built-in character classes such as \w and \s may be used in a character class. This example matches any period, word or whitespace character. |