com.jclark.xsl.expr
Class ExprParser

java.lang.Object
  |
  +--com.jclark.xsl.expr.ExprTokenizer
        |
        +--com.jclark.xsl.expr.ExprParser

All Implemented Interfaces:

NamespaceConstants

public class ExprParser

extends com.jclark.xsl.expr.ExprTokenizer

implements NamespaceConstants

XPAth expression parser / compiler extends the lexer ExprTokenizer

Fields inherited from interface com.jclark.xsl.om.NamespaceConstants

XFYXT_NAMESPACE, XT_NAMESPACE

Method Summary

static NodeSetExpr	getChildrenExpr()
static BooleanExpr	parseBooleanExpr(Node node, java.lang.String expr, VariableSet locals) parse an XPath expression which is to be used in a context in which a Boolean is expected
static NodeSetExpr	parseNodeSetExpr(Node node, java.lang.String expr, VariableSet locals) parse an XPath expression which is to be used in a context in which a NodeSet is expected i.e.
static NumberExpr	parseNumberExpr(Node node, java.lang.String expr, VariableSet locals) parse an XPath expression which is to be used in a context in which a Number is expected
static TopLevelPattern	parsePattern(Node node, java.lang.String pattern) parse an XPath match Pattern
static TopLevelPattern	parsePattern(Node node, java.lang.String pattern, VariableSet locals) parse an XPath match pattern (with some variables!?!?)
static StringExpr	parseStringExpr(Node node, java.lang.String expr, VariableSet locals) parse an XPath expression which is to be used in a context in which a String is expected
static StringExpr	parseValueExpr(Node node, java.lang.String value, VariableSet locals) parse an XSLT attribute value template (which may include XPath expression(s) enclosed in curlybraces "{" "}")
static VariantExpr	parseVariantExpr(Node node, java.lang.String expr, VariableSet locals) parse an XPath expression which is to be used in a context in which a Variant (xsl:variable, xsl:param) is expected

Methods inherited from class java.lang.Object

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

Method Detail

parseValueExpr

public static StringExpr parseValueExpr(Node node,
                                        java.lang.String value,
                                        VariableSet locals)
                                 throws XSLException

parse an XSLT attribute value template (which may include XPath expression(s) enclosed in curlybraces "{" "}")

getChildrenExpr

public static NodeSetExpr getChildrenExpr()

parsePattern

public static TopLevelPattern parsePattern(Node node,
                                           java.lang.String pattern)
                                    throws XSLException

parse an XPath match Pattern

parsePattern

public static TopLevelPattern parsePattern(Node node,
                                           java.lang.String pattern,
                                           VariableSet locals)
                                    throws XSLException

parse an XPath match pattern (with some variables!?!?)

Parameters:

node - represents the node in the stylesheet with the expression we're parsing. Used for plugging the location in any Exception we might throw xsl:number allows variables in the "count" and "from" attributes

parseNodeSetExpr

public static NodeSetExpr parseNodeSetExpr(Node node,
                                           java.lang.String expr,
                                           VariableSet locals)
                                    throws XSLException

parse an XPath expression which is to be used in a context in which a NodeSet is expected i.e. for the "select" attribute of an "xsl:apply-templates"

parseStringExpr

public static StringExpr parseStringExpr(Node node,
                                         java.lang.String expr,
                                         VariableSet locals)
                                  throws XSLException

parse an XPath expression which is to be used in a context in which a String is expected

parseNumberExpr

public static NumberExpr parseNumberExpr(Node node,
                                         java.lang.String expr,
                                         VariableSet locals)
                                  throws XSLException

parse an XPath expression which is to be used in a context in which a Number is expected

parseBooleanExpr

public static BooleanExpr parseBooleanExpr(Node node,
                                           java.lang.String expr,
                                           VariableSet locals)
                                    throws XSLException

parse an XPath expression which is to be used in a context in which a Boolean is expected

parseVariantExpr

public static VariantExpr parseVariantExpr(Node node,
                                           java.lang.String expr,
                                           VariableSet locals)
                                    throws XSLException

parse an XPath expression which is to be used in a context in which a Variant (xsl:variable, xsl:param) is expected