net.sf.saxon.regex
Class JDK15RegexTranslator
java.lang.Object
net.sf.saxon.regex.JDK15RegexTranslator
public class JDK15RegexTranslator
- extends java.lang.Object
This class translates XML Schema regex syntax into JDK 1.5 regex syntax. This differs from the JDK 1.4
translator because JDK 1.5 handles non-BMP characters (wide characters) in places where JDK 1.4 does not,
for example in a range such as [X-Y]. This enables much of the code from the 1.4 translator to be
removed.
Author: James Clark
Modified by Michael Kay (a) to integrate the code into Saxon, and (b) to support XPath additions
to the XML Schema regex syntax. This version also removes most of the complexities of handling non-BMP
characters, since JDK 1.5 handles these natively.
Method Summary |
static void |
main(java.lang.String[] args)
|
static java.lang.String |
translate(java.lang.CharSequence 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 |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
CATEGORY_NAMES
static final java.lang.String CATEGORY_NAMES
- See Also:
- Constant Field Values
CATEGORY_RANGES
static final int[][] CATEGORY_RANGES
NMSTRT_INCLUDES
static final java.lang.String NMSTRT_INCLUDES
- See Also:
- Constant Field Values
NMSTRT_EXCLUDE_RANGES
static final java.lang.String NMSTRT_EXCLUDE_RANGES
- See Also:
- Constant Field Values
NMSTRT_CATEGORIES
static final java.lang.String NMSTRT_CATEGORIES
- See Also:
- Constant Field Values
NMCHAR_INCLUDES
static final java.lang.String NMCHAR_INCLUDES
- See Also:
- Constant Field Values
NMCHAR_EXCLUDE_RANGES
static final java.lang.String NMCHAR_EXCLUDE_RANGES
- See Also:
- Constant Field Values
NMCHAR_CATEGORIES
static final java.lang.String NMCHAR_CATEGORIES
- See Also:
- Constant Field Values
NONE
static final int NONE
- See Also:
- Constant Field Values
SOME
static final int SOME
- See Also:
- Constant Field Values
ALL
static final int ALL
- See Also:
- Constant Field Values
SURROGATES1_CLASS
static final java.lang.String SURROGATES1_CLASS
- See Also:
- Constant Field Values
SURROGATES2_CLASS
static final java.lang.String SURROGATES2_CLASS
- See Also:
- Constant Field Values
NOT_ALLOWED_CLASS
static final java.lang.String NOT_ALLOWED_CLASS
- See Also:
- Constant Field Values
translate
public static java.lang.String translate(java.lang.CharSequence regexp,
boolean xpath)
throws 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 2xpath
- a boolean indicating whether the XPath 2.0 F+O extensions to the schema
regex syntax are permitted
- Throws:
RegexSyntaxException
- if regexp
is not a regular expression in the
syntax of XML Schemas Part 2, or XPath 2.0, as appropriate- See Also:
Pattern
,
XML Schema Part 2
main
public static void main(java.lang.String[] args)
throws RegexSyntaxException
- Throws:
RegexSyntaxException