11.10. Using Regular Expressions

Regular expressions are descriptions of textual patterns that enable string matching. You have likely used at least a simple regular expression. Perhaps the most common character in a regular expression is the wildcard character (*). So if you have ever entered *.cfm to view only the ColdFusion markup files in a directory, you have used regular expressions. You may or may not have had occasion to use regular expressions with ColdFusion functions.

Regular expressions are a useful tool, and we will cover them here briefly as the JDK 1.4 makes them easy to use; the new classes are a package under java.util.

11.10.1. Regex in CF

Using a regular expression in ColdFusion boils down to implementing one of two functions: ...

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