Package net.sf.saxon.expr.parser

Class ParserExtension

java.lang.Object
net.sf.saxon.expr.parser.ParserExtension
Direct Known Subclasses:
SaxonSyntaxExtension
public class ParserExtension extends Object
Dummy Parser extension for syntax in XPath that is accepted only in particular product variants. Originally, this meant XPath 3.0 syntax associated with higher-order functions. It now covers Saxon syntax extensions and XQuery Update.

  • Constructor Details

    • ParserExtension

      public ParserExtension()

  • Method Details

    • needExtension

      public void needExtension(XPathParser p, String what) throws XPathException
      Throws:
      XPathException

    • handleExternalFunctionDeclaration

      public void handleExternalFunctionDeclaration(XQueryParser p, XQueryFunction func) throws XPathException
      Throws:
      XPathException

    • parseExtendedItemType

      public ItemType parseExtendedItemType(XPathParser p) throws XPathException
      Parse an ItemType within a SequenceType
      Parameters:
      p - the XPath parser
      Returns:
      the ItemType after parsing
      Throws:
      XPathException - if a static error is found

    • parseTypePattern

      public Expression parseTypePattern(XPathParser p) throws XPathException
      Parse an extended XSLT pattern in the form ~itemType (predicate)*
      Parameters:
      p - the XPath parser
      Returns:
      the equivalent expression in the form .[. instance of type] (predicate)*
      Throws:
      XPathException - if a static error is found

    • parseItemTypeDeclaration

      public void parseItemTypeDeclaration(XQueryParser p) throws XPathException
      Parse a type alias declaration. Allowed only in Saxon-PE and higher
      Parameters:
      p - the XPath parser
      Throws:
      XPathException - if parsing fails

    • parseRevalidationDeclaration

      public void parseRevalidationDeclaration(XQueryParser p) throws XPathException
      Parse the "declare revalidation" declaration. Syntax: not allowed unless XQuery update is in use
      Parameters:
      p - the XPath parser
      Throws:
      XPathException - if the syntax is incorrect, or is not allowed in this XQuery processor

    • parseUpdatingFunctionDeclaration

      public void parseUpdatingFunctionDeclaration(XQueryParser p) throws XPathException
      Parse an updating function declaration (allowed in XQuery Update only)
      Parameters:
      p - the XPath parser
      Throws:
      XPathException - if parsing fails PathMapor if updating functions are not allowed

    • parseExtendedExprSingle

      protected Expression parseExtendedExprSingle(XPathParser p) throws XPathException
      Throws:
      XPathException