Using regular expressions
Flash Player 9 and later, Adobe AIR 1.0 and
later
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A regular
expression describes a pattern that is used to find and manipulate matching
text in strings. Regular expressions resemble strings, but they
can include special codes to describe patterns and repetition. For
example, the following regular expression matches a string that
starts with the character A followed by one or more sequential digits:
/A\d+/
The following topics describe the basic syntax for constructing
regular expressions. However, regular expressions can have many
complexities and nuances. You can find detailed resources on regular
expressions on the web and in bookstores. Keep in mind that different
programming environments implement regular expressions in different
ways. ActionScript 3.0 implements regular expressions as defined
in the ECMAScript edition 3 language specification (ECMA-262).
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