## org.exist.xquery.util
Class RegexTranslator

    java.lang.Object
      org.exist.xquery.util.RegexTranslator

public class RegexTranslator
extends java.lang.Object

This class translates XML Schema regex syntax into JDK 1.4 regex syntax. Copied from Saxon package net.sf.saxon.type without change. The original author is James Clark. See license.

Nested Class Summary
`static class` `RegexTranslator.RegexSyntaxException` Thrown when an syntactically incorrect regular expression is detected.

Method Summary
`static void` `main(java.lang.String[] args)`
`static java.lang.String` `translate(java.lang.String regexp, boolean xpath)` Translates a regular expression in the syntax of XML Schemas Part 2 into a regular expression in the syntax of `java.util.regex.Pattern`.

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Method Detail

### translate

    public static java.lang.String translate(java.lang.String regexp,
                                             boolean xpath)
                                      throws RegexTranslator.RegexSyntaxException

  Translates a regular expression in the syntax of XML Schemas Part 2 into a regular expression in the syntax of `java.util.regex.Pattern`. The translation assumes that the string to be matched against the regex uses surrogate pairs correctly. If the string comes from XML content, a conforming XML parser will automatically check this; if the string comes from elsewhere, it may be necessary to check surrogate usage before matching.

  Parameters:
    `regexp` - a String containing a regular expression in the syntax of XML Schemas Part 2
    `xpath` - a boolean indicating whether the XPath 2.0 F+O extensions to the schema regex syntax are permitted
  Returns:
    a String containing a regular expression in the syntax of java.util.regex.Pattern
  Throws:
    `RegexTranslator.RegexSyntaxException` - if `regexp` is not a regular expression in the syntax of XML Schemas Part 2
  See Also:
    `Pattern`, XML Schema Part 2

### main

    public static void main(java.lang.String[] args)
                     throws RegexTranslator.RegexSyntaxException

  Throws:
    `RegexTranslator.RegexSyntaxException`

Copyright (C) Wolfgang Meier. All rights reserved.