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	/*
	* 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.xerces.internal.impl.dv.xs;

	import java.math.BigDecimal;
	import java.math.BigInteger;

	import com.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeValueException;
	import com.sun.org.apache.xerces.internal.impl.dv.ValidationContext;
	import com.sun.org.apache.xerces.internal.xs.datatypes.XSDecimal;
	import java.util.Objects;

	/**
	* Represent the schema type "decimal"
	*
	* @xerces.internal
	*
	* @author Neeraj Bajaj, Sun Microsystems, inc.
	* @author Sandy Gao, IBM
	*
	*/
	public class DecimalDV extends TypeValidator {

	@Override
	public final short getAllowedFacets(){
	return ( XSSimpleTypeDecl.FACET_PATTERN \| XSSimpleTypeDecl.FACET_WHITESPACE \| XSSimpleTypeDecl.FACET_ENUMERATION \|XSSimpleTypeDecl.FACET_MAXINCLUSIVE \|XSSimpleTypeDecl.FACET_MININCLUSIVE \| XSSimpleTypeDecl.FACET_MAXEXCLUSIVE \| XSSimpleTypeDecl.FACET_MINEXCLUSIVE \| XSSimpleTypeDecl.FACET_TOTALDIGITS \| XSSimpleTypeDecl.FACET_FRACTIONDIGITS);
	}

	@Override
	public Object getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException {
	try {
	return new XDecimal(content);
	} catch (NumberFormatException nfe) {
	throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "decimal"});
	}
	}

	@Override
	public final int compare(Object value1, Object value2){
	return ((XDecimal)value1).compareTo((XDecimal)value2);
	}

	@Override
	public final int getTotalDigits(Object value){
	return ((XDecimal)value).totalDigits;
	}

	@Override
	public final int getFractionDigits(Object value){
	return ((XDecimal)value).fracDigits;
	}

	// Avoid using the heavy-weight java.math.BigDecimal
	static final class XDecimal implements XSDecimal {
	// sign: 0 for vlaue 0; 1 for positive values; -1 for negative values
	int sign = 1;
	// total digits. >= 1
	int totalDigits = 0;
	// integer digits when sign != 0
	int intDigits = 0;
	// fraction digits when sign != 0
	int fracDigits = 0;
	// the string representing the integer part
	String ivalue = "";
	// the string representing the fraction part
	String fvalue = "";
	// whether the canonical form contains decimal point
	boolean integer = false;

	XDecimal(String content) throws NumberFormatException {
	initD(content);
	}
	XDecimal(String content, boolean integer) throws NumberFormatException {
	if (integer)
	initI(content);
	else
	initD(content);
	}
	void initD(String content) throws NumberFormatException {
	int len = content.length();
	if (len == 0)
	throw new NumberFormatException();

	// these 4 variables are used to indicate where the integre/fraction
	// parts start/end.
	int intStart = 0, intEnd = 0, fracStart = 0, fracEnd = 0;

	// Deal with leading sign symbol if present
	if (content.charAt(0) == '+') {
	// skip '+', so intStart should be 1
	intStart = 1;
	}
	else if (content.charAt(0) == '-') {
	// keep '-', so intStart is stil 0
	intStart = 1;
	sign = -1;
	}

	// skip leading zeroes in integer part
	int actualIntStart = intStart;
	while (actualIntStart < len && content.charAt(actualIntStart) == '0') {
	actualIntStart++;
	}

	// Find the ending position of the integer part
	for (intEnd = actualIntStart;
	intEnd < len && TypeValidator.isDigit(content.charAt(intEnd));
	intEnd++);

	// Not reached the end yet
	if (intEnd < len) {
	// the remaining part is not ".DDD", error
	if (content.charAt(intEnd) != '.')
	throw new NumberFormatException();

	// fraction part starts after '.', and ends at the end of the input
	fracStart = intEnd + 1;
	fracEnd = len;
	}

	// no integer part, no fraction part, error.
	if (intStart == intEnd && fracStart == fracEnd)
	throw new NumberFormatException();

	// ignore trailing zeroes in fraction part
	while (fracEnd > fracStart && content.charAt(fracEnd-1) == '0') {
	fracEnd--;
	}

	// check whether there is non-digit characters in the fraction part
	for (int fracPos = fracStart; fracPos < fracEnd; fracPos++) {
	if (!TypeValidator.isDigit(content.charAt(fracPos)))
	throw new NumberFormatException();
	}

	intDigits = intEnd - actualIntStart;
	fracDigits = fracEnd - fracStart;
	totalDigits = intDigits + fracDigits;

	if (intDigits > 0) {
	ivalue = content.substring(actualIntStart, intEnd);
	if (fracDigits > 0)
	fvalue = content.substring(fracStart, fracEnd);
	}
	else {
	if (fracDigits > 0) {
	fvalue = content.substring(fracStart, fracEnd);
	}
	else {
	// ".00", treat it as "0"
	sign = 0;
	}
	}
	}
	void initI(String content) throws NumberFormatException {
	int len = content.length();
	if (len == 0)
	throw new NumberFormatException();

	// these 2 variables are used to indicate where the integre start/end.
	int intStart = 0, intEnd = 0;

	// Deal with leading sign symbol if present
	if (content.charAt(0) == '+') {
	// skip '+', so intStart should be 1
	intStart = 1;
	}
	else if (content.charAt(0) == '-') {
	// keep '-', so intStart is stil 0
	intStart = 1;
	sign = -1;
	}

	// skip leading zeroes in integer part
	int actualIntStart = intStart;
	while (actualIntStart < len && content.charAt(actualIntStart) == '0') {
	actualIntStart++;
	}

	// Find the ending position of the integer part
	for (intEnd = actualIntStart;
	intEnd < len && TypeValidator.isDigit(content.charAt(intEnd));
	intEnd++);

	// Not reached the end yet, error
	if (intEnd < len)
	throw new NumberFormatException();

	// no integer part, error.
	if (intStart == intEnd)
	throw new NumberFormatException();

	intDigits = intEnd - actualIntStart;
	fracDigits = 0;
	totalDigits = intDigits;

	if (intDigits > 0) {
	ivalue = content.substring(actualIntStart, intEnd);
	}
	else {
	// "00", treat it as "0"
	sign = 0;
	}

	integer = true;
	}

	@Override
	public boolean equals(Object val) {
	if (val == this)
	return true;

	if (!(val instanceof XDecimal))
	return false;
	XDecimal oval = (XDecimal)val;

	if (sign != oval.sign)
	return false;
	if (sign == 0)
	return true;

	return intDigits == oval.intDigits && fracDigits == oval.fracDigits &&
	ivalue.equals(oval.ivalue) && fvalue.equals(oval.fvalue);
	}

	@Override
	public int hashCode() {
	int hash = 7;
	hash = 17 * hash + this.sign;
	if (this.sign == 0) return hash;
	hash = 17 * hash + this.intDigits;
	hash = 17 * hash + this.fracDigits;
	hash = 17 * hash + Objects.hashCode(this.ivalue);
	hash = 17 * hash + Objects.hashCode(this.fvalue);
	return hash;
	}

	public int compareTo(XDecimal val) {
	if (sign != val.sign)
	return sign > val.sign ? 1 : -1;
	if (sign == 0)
	return 0;
	return sign * intComp(val);
	}
	private int intComp(XDecimal val) {
	if (intDigits != val.intDigits)
	return intDigits > val.intDigits ? 1 : -1;
	int ret = ivalue.compareTo(val.ivalue);
	if (ret != 0)
	return ret > 0 ? 1 : -1;;
	ret = fvalue.compareTo(val.fvalue);
	return ret == 0 ? 0 : (ret > 0 ? 1 : -1);
	}

	private String canonical;
	@Override
	public synchronized String toString() {
	if (canonical == null) {
	makeCanonical();
	}
	return canonical;
	}

	private void makeCanonical() {
	if (sign == 0) {
	if (integer)
	canonical = "0";
	else
	canonical = "0.0";
	return;
	}
	if (integer && sign > 0) {
	canonical = ivalue;
	return;
	}
	// for -0.1, total digits is 1, so we need 3 extra spots
	final StringBuilder buffer = new StringBuilder(totalDigits+3);
	if (sign == -1)
	buffer.append('-');
	if (intDigits != 0)
	buffer.append(ivalue);
	else
	buffer.append('0');
	if (!integer) {
	buffer.append('.');
	if (fracDigits != 0) {
	buffer.append(fvalue);
	}
	else {
	buffer.append('0');
	}
	}
	canonical = buffer.toString();
	}

	@Override
	public BigDecimal getBigDecimal() {
	if (sign == 0) {
	return new BigDecimal(BigInteger.ZERO);
	}
	return new BigDecimal(toString());
	}

	@Override
	public BigInteger getBigInteger() throws NumberFormatException {
	if (fracDigits != 0) {
	throw new NumberFormatException();
	}
	if (sign == 0) {
	return BigInteger.ZERO;
	}
	if (sign == 1) {
	return new BigInteger(ivalue);
	}
	return new BigInteger("-" + ivalue);
	}

	@Override
	public long getLong() throws NumberFormatException {
	if (fracDigits != 0) {
	throw new NumberFormatException();
	}
	if (sign == 0) {
	return 0L;
	}
	if (sign == 1) {
	return Long.parseLong(ivalue);
	}
	return Long.parseLong("-" + ivalue);
	}

	@Override
	public int getInt() throws NumberFormatException {
	if (fracDigits != 0) {
	throw new NumberFormatException();
	}
	if (sign == 0) {
	return 0;
	}
	if (sign == 1) {
	return Integer.parseInt(ivalue);
	}
	return Integer.parseInt("-" + ivalue);
	}

	@Override
	public short getShort() throws NumberFormatException {
	if (fracDigits != 0) {
	throw new NumberFormatException();
	}
	if (sign == 0) {
	return 0;
	}
	if (sign == 1) {
	return Short.parseShort(ivalue);
	}
	return Short.parseShort("-" + ivalue);
	}

	@Override
	public byte getByte() throws NumberFormatException {
	if (fracDigits != 0) {
	throw new NumberFormatException();
	}
	if (sign == 0) {
	return 0;
	}
	if (sign == 1) {
	return Byte.parseByte(ivalue);
	}
	return Byte.parseByte("-" + ivalue);
	}
	}
	} // class DecimalDV

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