com.jclark.xsl.expr
Class PrecedingAxisExpr

java.lang.Object
  com.jclark.xsl.expr.ConvertibleExpr
      com.jclark.xsl.expr.ConvertibleNodeSetExpr
          com.jclark.xsl.expr.AxisExpr
              com.jclark.xsl.expr.ReverseAxisExpr
                  com.jclark.xsl.expr.PrecedingAxisExpr

All Implemented Interfaces:

NodeSetExpr

 class PrecedingAxisExpr
extends ReverseAxisExpr

The algorithm is:

(define (preceding x)
  (define (reverse-subtree x)
    (append (map reverse-subtree (reverse (children x)))
            (list x)))
  (map (lambda (y)
         (map reverse-subtree (preceding-sibling y)))
       (ancestor-or-self x)))

Nested Class Summary

(package private) static class	PrecedingAxisExpr.AppendNodeIterator
(package private) static class	PrecedingAxisExpr.LeftExpr
(package private) static class	PrecedingAxisExpr.ReverseSubtreeExpr

Field Summary

Fields inherited from class com.jclark.xsl.expr.ConvertibleNodeSetExpr

SINGLE_LEVEL, STAYS_IN_SUBTREE

Constructor Summary

PrecedingAxisExpr()

Method Summary

NodeIterator

eval(Node node, ExprContext context) evaluate the expression with a contextNode and ExprContext

Methods inherited from class com.jclark.xsl.expr.ReverseAxisExpr

makeDocumentOrderExpr

Methods inherited from class com.jclark.xsl.expr.AxisExpr

makeFilterExpr

Methods inherited from class com.jclark.xsl.expr.ConvertibleNodeSetExpr

compose, getChildrenNodePattern, getOptimizeFlags, makeBooleanExpr, makeNodeSetExpr, makeStringExpr, makeVariantExpr

Methods inherited from class com.jclark.xsl.expr.ConvertibleExpr

makeNumberExpr, makePredicateExpr

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PrecedingAxisExpr

PrecedingAxisExpr()

Method Detail

eval

public NodeIterator eval(Node node,
                         ExprContext context)
                  throws XSLException

Description copied from interface: NodeSetExpr

evaluate the expression with a contextNode and ExprContext

Throws:

XSLException