Regex - Regular Expression Syntax Go to the first , previous , next , last section, table of contents . Regular Expression Syntax Characters are things you can type.
Operators are things in a regular expression that match one or more characters.
You compose regular expressions from operators, which in turn you specify using one or more characters. In the following sections, we describe these things in more detail. In any particular syntax for regular expressions, some characters are always special, others are sometimes special, and others are never special. The particular syntax that Regex recognizes for a given regular expression depends on the value in the syntax field of the pattern buffer of that regular expression. You get a pattern buffer by compiling a regular expression.