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Package overview: net.sf.saxon.regexp
This package contains the code to map XML Schema and XPath regular expressions
to a regular expression engine of the underlying Java platform.
Most of the classes implement a regular expression derived from Apache's Jakarta
project. The code of Jakarta has been modified so that the regular expressions implement
the syntax of XSD/XPath regular expressions.
In addition, there are classes to provide direct access to the native JDK
regular expression engine. The flags value ";j" may be used to select this
engine. The resulting syntax/semantics will not be an exact match to the XPath
definition.
Users should not normally need to use these classes directly.
Earlier versions of Saxon included a translator from XPath regular expressions
to Java regular expressions, based on that produced by James Clark. This
mechanism is no longer used.