Regular expressions 1. Special characters The following characters are the meta characters that give special meaning to the regular expression search syntax: \ the backslash escape character. The backslash gives special meaning to the character following it. For example, the combination "\n" stands for the newline, one of the control characters . The combination "\w" stands for a "word" character, one of the convenience escape sequences while "\1" is one of the substitution special characters .
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