Back to index...

	/*
	* reserved comment block
	* DO NOT REMOVE OR ALTER!
	*/
	/*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership.
	* The ASF licenses this file to You under the Apache License, Version 2.0
	* (the "License"); you may not use this file except in compliance with
	* the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.sun.org.apache.xalan.internal.xsltc.compiler;

	import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
	import com.sun.org.apache.bcel.internal.generic.GETSTATIC;
	import com.sun.org.apache.bcel.internal.generic.INVOKESPECIAL;
	import com.sun.org.apache.bcel.internal.generic.INVOKEVIRTUAL;
	import com.sun.org.apache.bcel.internal.generic.InstructionList;
	import com.sun.org.apache.bcel.internal.generic.NEW;
	import com.sun.org.apache.bcel.internal.generic.PUSH;
	import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
	import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ErrorMsg;
	import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
	import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
	import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
	import com.sun.org.apache.xml.internal.utils.XML11Char;

	/**
	* @author Jacek Ambroziak
	* @author Santiago Pericas-Geertsen
	* @author Morten Jorgensen
	*/
	final class DecimalFormatting extends TopLevelElement {

	private static final String DFS_CLASS = "java.text.DecimalFormatSymbols";
	private static final String DFS_SIG = "Ljava/text/DecimalFormatSymbols;";

	private QName _name = null;

	/**
	* No type check needed for the <xsl:decimal-formatting/> element
	*/
	public Type typeCheck(SymbolTable stable) throws TypeCheckError {
	return Type.Void;
	}

	/**
	* Parse the name of the <xsl:decimal-formatting/> element
	*/
	public void parseContents(Parser parser) {
	// Get the name of these decimal formatting symbols
	final String name = getAttribute("name");
	if (name.length() > 0) {
	if (!XML11Char.isXML11ValidQName(name)){
	ErrorMsg err = new ErrorMsg(ErrorMsg.INVALID_QNAME_ERR, name, this);
	parser.reportError(Constants.ERROR, err);
	}
	}
	_name = parser.getQNameIgnoreDefaultNs(name);
	if (_name == null) {
	_name = parser.getQNameIgnoreDefaultNs(EMPTYSTRING);
	}

	// Check if a set of symbols has already been registered under this name
	SymbolTable stable = parser.getSymbolTable();
	if (stable.getDecimalFormatting(_name) != null) {
	reportWarning(this, parser, ErrorMsg.SYMBOLS_REDEF_ERR,
	_name.toString());
	}
	else {
	stable.addDecimalFormatting(_name, this);
	}
	}

	/**
	* This method is called when the constructor is compiled in
	* Stylesheet.compileConstructor() and not as the syntax tree is traversed.
	*/
	public void translate(ClassGenerator classGen, MethodGenerator methodGen) {

	ConstantPoolGen cpg = classGen.getConstantPool();
	InstructionList il = methodGen.getInstructionList();

	// DecimalFormatSymbols.<init>(Locale);
	// xsl:decimal-format - except for the NaN and infinity attributes.
	final int init = cpg.addMethodref(DFS_CLASS, "<init>",
	"("+LOCALE_SIG+")V");

	// Push the format name on the stack for call to addDecimalFormat()
	il.append(classGen.loadTranslet());
	il.append(new PUSH(cpg, _name.toString()));

	// Manufacture a DecimalFormatSymbols on the stack
	// for call to addDecimalFormat()
	// Use the US Locale as the default, as most of its settings
	// are equivalent to the default settings required of
	il.append(new NEW(cpg.addClass(DFS_CLASS)));
	il.append(DUP);
	il.append(new GETSTATIC(cpg.addFieldref(LOCALE_CLASS, "US",
	LOCALE_SIG)));
	il.append(new INVOKESPECIAL(init));

	String tmp = getAttribute("NaN");
	if ((tmp == null) \|\| (tmp.equals(EMPTYSTRING))) {
	int nan = cpg.addMethodref(DFS_CLASS,
	"setNaN", "(Ljava/lang/String;)V");
	il.append(DUP);
	il.append(new PUSH(cpg, "NaN"));
	il.append(new INVOKEVIRTUAL(nan));
	}

	tmp = getAttribute("infinity");
	if ((tmp == null) \|\| (tmp.equals(EMPTYSTRING))) {
	int inf = cpg.addMethodref(DFS_CLASS,
	"setInfinity",
	"(Ljava/lang/String;)V");
	il.append(DUP);
	il.append(new PUSH(cpg, "Infinity"));
	il.append(new INVOKEVIRTUAL(inf));
	}

	final int nAttributes = _attributes.getLength();
	for (int i = 0; i < nAttributes; i++) {
	final String name = _attributes.getQName(i);
	final String value = _attributes.getValue(i);

	boolean valid = true;
	int method = 0;

	if (name.equals("decimal-separator")) {
	// DecimalFormatSymbols.setDecimalSeparator();
	method = cpg.addMethodref(DFS_CLASS,
	"setDecimalSeparator", "(C)V");
	}
	else if (name.equals("grouping-separator")) {
	method = cpg.addMethodref(DFS_CLASS,
	"setGroupingSeparator", "(C)V");
	}
	else if (name.equals("minus-sign")) {
	method = cpg.addMethodref(DFS_CLASS,
	"setMinusSign", "(C)V");
	}
	else if (name.equals("percent")) {
	method = cpg.addMethodref(DFS_CLASS,
	"setPercent", "(C)V");
	}
	else if (name.equals("per-mille")) {
	method = cpg.addMethodref(DFS_CLASS,
	"setPerMill", "(C)V");
	}
	else if (name.equals("zero-digit")) {
	method = cpg.addMethodref(DFS_CLASS,
	"setZeroDigit", "(C)V");
	}
	else if (name.equals("digit")) {
	method = cpg.addMethodref(DFS_CLASS,
	"setDigit", "(C)V");
	}
	else if (name.equals("pattern-separator")) {
	method = cpg.addMethodref(DFS_CLASS,
	"setPatternSeparator", "(C)V");
	}
	else if (name.equals("NaN")) {
	method = cpg.addMethodref(DFS_CLASS,
	"setNaN", "(Ljava/lang/String;)V");
	il.append(DUP);
	il.append(new PUSH(cpg, value));
	il.append(new INVOKEVIRTUAL(method));
	valid = false;
	}
	else if (name.equals("infinity")) {
	method = cpg.addMethodref(DFS_CLASS,
	"setInfinity",
	"(Ljava/lang/String;)V");
	il.append(DUP);
	il.append(new PUSH(cpg, value));
	il.append(new INVOKEVIRTUAL(method));
	valid = false;
	}
	else {
	valid = false;
	}

	if (valid) {
	il.append(DUP);
	il.append(new PUSH(cpg, value.charAt(0)));
	il.append(new INVOKEVIRTUAL(method));
	}

	}

	final int put = cpg.addMethodref(TRANSLET_CLASS,
	"addDecimalFormat",
	"("+STRING_SIG+DFS_SIG+")V");
	il.append(new INVOKEVIRTUAL(put));
	}

	/**
	* Creates the default, nameless, DecimalFormat object in
	* AbstractTranslet's format_symbols hashtable.
	* This should be called for every stylesheet, and the entry
	* may be overridden by later nameless xsl:decimal-format instructions.
	*/
	public static void translateDefaultDFS(ClassGenerator classGen,
	MethodGenerator methodGen) {

	ConstantPoolGen cpg = classGen.getConstantPool();
	InstructionList il = methodGen.getInstructionList();
	final int init = cpg.addMethodref(DFS_CLASS, "<init>",
	"("+LOCALE_SIG+")V");

	// Push the format name, which is empty, on the stack
	// for call to addDecimalFormat()
	il.append(classGen.loadTranslet());
	il.append(new PUSH(cpg, EMPTYSTRING));

	// Manufacture a DecimalFormatSymbols on the stack for
	// call to addDecimalFormat(). Use the US Locale as the
	// default, as most of its settings are equivalent to
	// the default settings required of xsl:decimal-format -
	// except for the NaN and infinity attributes.
	il.append(new NEW(cpg.addClass(DFS_CLASS)));
	il.append(DUP);
	il.append(new GETSTATIC(cpg.addFieldref(LOCALE_CLASS, "US",
	LOCALE_SIG)));
	il.append(new INVOKESPECIAL(init));

	int nan = cpg.addMethodref(DFS_CLASS,
	"setNaN", "(Ljava/lang/String;)V");
	il.append(DUP);
	il.append(new PUSH(cpg, "NaN"));
	il.append(new INVOKEVIRTUAL(nan));

	int inf = cpg.addMethodref(DFS_CLASS,
	"setInfinity",
	"(Ljava/lang/String;)V");
	il.append(DUP);
	il.append(new PUSH(cpg, "Infinity"));
	il.append(new INVOKEVIRTUAL(inf));

	final int put = cpg.addMethodref(TRANSLET_CLASS,
	"addDecimalFormat",
	"("+STRING_SIG+DFS_SIG+")V");
	il.append(new INVOKEVIRTUAL(put));
	}
	}

Back to index...