org.apache.xalan.xsltc.compiler

Class XPathParser

java.lang.Object

java_cup.runtime.lr_parser

org.apache.xalan.xsltc.compiler.XPathParser

public class XPathParser
extends java_cup.runtime.lr_parser

CUP v0.10k generated parser.

Version:

Thu May 03 09:06:46 EDT 2018

Field Summary

Fields

Modifier and Type	Field and Description
protected static short[][]	_action_table Parse-action table.
protected static short[][]	_production_table Production table.
protected static short[][]	_reduce_table reduce_goto table.
org.apache.xalan.xsltc.compiler.SymbolTable	_symbolTable Reference to the symbol table.
protected org.apache.xalan.xsltc.compiler.CUP$XPathParser$actions	action_obj Instance of action encapsulation class.
static org.apache.xalan.xsltc.compiler.VariableRef	DummyVarRef Reference to non-existing variable.
static Vector	EmptyArgs Used by function calls with no args.

Constructor Summary

Constructors

Constructor and Description
XPathParser() Default constructor.
XPathParser(java_cup.runtime.Scanner s) Constructor which sets the default scanner.

Method Summary

Modifier and Type	Method and Description
short[][]	action_table() Access to parse-action table.
void	addError(ErrorMsg error)
org.apache.xalan.xsltc.compiler.StepPattern	createStepPattern(int axis, Object test, Vector predicates) This method is similar to findNodeType(int, Object) except that it creates a StepPattern instead of just returning a node type.
java_cup.runtime.Symbol	do_action(int act_num, java_cup.runtime.lr_parser parser, Stack stack, int top) Invoke a user supplied parse action.
int	EOF_sym() EOF Symbol index.
int	error_sym() error Symbol index.
int	findNodeType(int axis, Object test)
int	getLineNumber()
org.apache.xalan.xsltc.compiler.QName	getQName(String namespace, String prefix, String localname)
org.apache.xalan.xsltc.compiler.QName	getQNameIgnoreDefaultNs(String name)
protected void	init_actions() Action encapsulation object initializer.
org.apache.xalan.xsltc.compiler.RelativeLocationPath	insertStep(org.apache.xalan.xsltc.compiler.Step step, org.apache.xalan.xsltc.compiler.RelativeLocationPath rlp)
boolean	isElementAxis(int axis) Returns true if the axis applies to elements only.
Symbol	parse(String expression, int lineNumber) Parse the expression passed to the current scanner.
short[][]	production_table() Access to production table.
short[][]	reduce_table() Access to reduce_goto table.
void	report_error(String message, Object info)
void	report_fatal_error(String message, Object info)
void	setCallsNodeset(boolean flag)
void	setHasIdCall(boolean flag)
void	setMultiDocument(boolean flag)
int	start_production() Indicates start production.
int	start_state() Indicates start state.

Methods inherited from class java.lang.Object

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

Field Detail

_production_table

protected static final short[][] _production_table

Production table.

_action_table

protected static final short[][] _action_table

Parse-action table.

_reduce_table

protected static final short[][] _reduce_table

reduce_goto table.

action_obj

protected org.apache.xalan.xsltc.compiler.CUP$XPathParser$actions action_obj

Instance of action encapsulation class.

EmptyArgs

public static final Vector EmptyArgs

Used by function calls with no args.

DummyVarRef

public static final org.apache.xalan.xsltc.compiler.VariableRef DummyVarRef

Reference to non-existing variable.

_symbolTable

public org.apache.xalan.xsltc.compiler.SymbolTable _symbolTable

Reference to the symbol table.

Constructor Detail

XPathParser

public XPathParser()

Default constructor.

XPathParser

public XPathParser(java_cup.runtime.Scanner s)

Constructor which sets the default scanner.

Method Detail

production_table

public short[][] production_table()

Access to production table.

action_table

public short[][] action_table()

Access to parse-action table.

reduce_table

public short[][] reduce_table()

Access to reduce_goto table.

init_actions

protected void init_actions()

Action encapsulation object initializer.

do_action

public java_cup.runtime.Symbol do_action(int act_num,
                                         java_cup.runtime.lr_parser parser,
                                         Stack stack,
                                         int top)
                                  throws Exception

Invoke a user supplied parse action.

Throws:

Exception

start_state

public int start_state()

Indicates start state.

start_production

public int start_production()

Indicates start production.

EOF_sym

public int EOF_sym()

EOF Symbol index.

error_sym

public int error_sym()

error Symbol index.

getLineNumber

public int getLineNumber()

getQNameIgnoreDefaultNs

public org.apache.xalan.xsltc.compiler.QName getQNameIgnoreDefaultNs(String name)

getQName

public org.apache.xalan.xsltc.compiler.QName getQName(String namespace,
                                                      String prefix,
                                                      String localname)

setMultiDocument

public void setMultiDocument(boolean flag)

setCallsNodeset

public void setCallsNodeset(boolean flag)

setHasIdCall

public void setHasIdCall(boolean flag)

createStepPattern

public org.apache.xalan.xsltc.compiler.StepPattern createStepPattern(int axis,
                                                                     Object test,
                                                                     Vector predicates)

This method is similar to findNodeType(int, Object) except that it creates a StepPattern instead of just returning a node type. It also differs in the way it handles "{uri}:*" and "{uri}:@*". The last two patterns are expanded as "*[namespace-uri() = 'uri']" and "@*[namespace-uri() = 'uri']", respectively. This expansion considerably simplifies the grouping of patterns in the Mode class. For this expansion to be correct, the priority of the pattern/template must be set to -0.25 (when no other predicates are present).

findNodeType

public int findNodeType(int axis,
                        Object test)

parse

public Symbol parse(String expression,
                    int lineNumber)
             throws Exception

Parse the expression passed to the current scanner. If this expression contains references to local variables and it will be compiled in an external module (not in the main class) request the current template to create a new variable stack frame.

Parameters:

lineNumber - Line where the current expression is defined.

external - Set to true if this expression is compiled in a separate module.

Throws:

Exception

addError

public final void addError(ErrorMsg error)

report_error

public void report_error(String message,
                         Object info)

report_fatal_error

public void report_fatal_error(String message,
                               Object info)

insertStep

public org.apache.xalan.xsltc.compiler.RelativeLocationPath insertStep(org.apache.xalan.xsltc.compiler.Step step,
                                                                       org.apache.xalan.xsltc.compiler.RelativeLocationPath rlp)

isElementAxis

public boolean isElementAxis(int axis)

Returns true if the axis applies to elements only. The axes child, attribute, namespace, descendant result in non-empty nodesets only if the context node is of type element.