Regular Expressions in webMethods

When validating an IS document type or schema, Integration Server uses the Perl regular
expression compiler by default. If you need to change this behavior so that Integration
Server uses the Java regular expression compiler during validation, set the server
configuration parameter watt.core.datatype.usejavaregex to true.

Perl Regular Expression Definitions

In webMethods, Regular expression can be used in following three different ways: 

1. Branch switch / Label
2. WQL
3. Built-in services

          There are two built-in services supporting regex: 

• pub.string:lookupTable
• pub.string:replace