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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.xml.internal.utils;

	import java.util.Arrays;


	/**
	* THIS IS A COPY OF THE XERCES-2J CLASS com.sun.org.apache.xerces.internal.utls.XMLChar
	*
	* This class defines the basic properties of characters in XML 1.1. The data
	* in this class can be used to verify that a character is a valid
	* XML 1.1 character or if the character is a space, name start, or name
	* character.
	* <p>
	* A series of convenience methods are supplied to ease the burden
	* of the developer. Using the character as an index into the <code>XML11CHARS</code>
	* array and applying the appropriate mask flag (e.g.
	* <code>MASK_VALID</code>), yields the same results as calling the
	* convenience methods. There is one exception: check the comments
	* for the <code>isValid</code> method for details.
	*
	*/
	public class XML11Char {

	//
	// Constants
	//

	/** Character flags for XML 1.1. */
	private static final byte XML11CHARS [] = new byte [1 << 16];

	/** XML 1.1 Valid character mask. */
	public static final int MASK_XML11_VALID = 0x01;

	/** XML 1.1 Space character mask. */
	public static final int MASK_XML11_SPACE = 0x02;

	/** XML 1.1 Name start character mask. */
	public static final int MASK_XML11_NAME_START = 0x04;

	/** XML 1.1 Name character mask. */
	public static final int MASK_XML11_NAME = 0x08;

	/** XML 1.1 control character mask */
	public static final int MASK_XML11_CONTROL = 0x10;

	/** XML 1.1 content for external entities (valid - "special" chars - control chars) */
	public static final int MASK_XML11_CONTENT = 0x20;

	/** XML namespaces 1.1 NCNameStart */
	public static final int MASK_XML11_NCNAME_START = 0x40;

	/** XML namespaces 1.1 NCName */
	public static final int MASK_XML11_NCNAME = 0x80;

	/** XML 1.1 content for internal entities (valid - "special" chars) */
	public static final int MASK_XML11_CONTENT_INTERNAL = MASK_XML11_CONTROL \| MASK_XML11_CONTENT;

	//
	// Static initialization
	//

	static {

	// Initializing the Character Flag Array
	// Code generated by: XML11CharGenerator.

	Arrays.fill(XML11CHARS, 1, 9, (byte) 17 ); // Fill 8 of value (byte) 17
	XML11CHARS[9] = 35;
	XML11CHARS[10] = 3;
	Arrays.fill(XML11CHARS, 11, 13, (byte) 17 ); // Fill 2 of value (byte) 17
	XML11CHARS[13] = 3;
	Arrays.fill(XML11CHARS, 14, 32, (byte) 17 ); // Fill 18 of value (byte) 17
	XML11CHARS[32] = 35;
	Arrays.fill(XML11CHARS, 33, 38, (byte) 33 ); // Fill 5 of value (byte) 33
	XML11CHARS[38] = 1;
	Arrays.fill(XML11CHARS, 39, 45, (byte) 33 ); // Fill 6 of value (byte) 33
	Arrays.fill(XML11CHARS, 45, 47, (byte) -87 ); // Fill 2 of value (byte) -87
	XML11CHARS[47] = 33;
	Arrays.fill(XML11CHARS, 48, 58, (byte) -87 ); // Fill 10 of value (byte) -87
	XML11CHARS[58] = 45;
	XML11CHARS[59] = 33;
	XML11CHARS[60] = 1;
	Arrays.fill(XML11CHARS, 61, 65, (byte) 33 ); // Fill 4 of value (byte) 33
	Arrays.fill(XML11CHARS, 65, 91, (byte) -19 ); // Fill 26 of value (byte) -19
	Arrays.fill(XML11CHARS, 91, 93, (byte) 33 ); // Fill 2 of value (byte) 33
	XML11CHARS[93] = 1;
	XML11CHARS[94] = 33;
	XML11CHARS[95] = -19;
	XML11CHARS[96] = 33;
	Arrays.fill(XML11CHARS, 97, 123, (byte) -19 ); // Fill 26 of value (byte) -19
	Arrays.fill(XML11CHARS, 123, 127, (byte) 33 ); // Fill 4 of value (byte) 33
	Arrays.fill(XML11CHARS, 127, 133, (byte) 17 ); // Fill 6 of value (byte) 17
	XML11CHARS[133] = 35;
	Arrays.fill(XML11CHARS, 134, 160, (byte) 17 ); // Fill 26 of value (byte) 17
	Arrays.fill(XML11CHARS, 160, 183, (byte) 33 ); // Fill 23 of value (byte) 33
	XML11CHARS[183] = -87;
	Arrays.fill(XML11CHARS, 184, 192, (byte) 33 ); // Fill 8 of value (byte) 33
	Arrays.fill(XML11CHARS, 192, 215, (byte) -19 ); // Fill 23 of value (byte) -19
	XML11CHARS[215] = 33;
	Arrays.fill(XML11CHARS, 216, 247, (byte) -19 ); // Fill 31 of value (byte) -19
	XML11CHARS[247] = 33;
	Arrays.fill(XML11CHARS, 248, 768, (byte) -19 ); // Fill 520 of value (byte) -19
	Arrays.fill(XML11CHARS, 768, 880, (byte) -87 ); // Fill 112 of value (byte) -87
	Arrays.fill(XML11CHARS, 880, 894, (byte) -19 ); // Fill 14 of value (byte) -19
	XML11CHARS[894] = 33;
	Arrays.fill(XML11CHARS, 895, 8192, (byte) -19 ); // Fill 7297 of value (byte) -19
	Arrays.fill(XML11CHARS, 8192, 8204, (byte) 33 ); // Fill 12 of value (byte) 33
	Arrays.fill(XML11CHARS, 8204, 8206, (byte) -19 ); // Fill 2 of value (byte) -19
	Arrays.fill(XML11CHARS, 8206, 8232, (byte) 33 ); // Fill 26 of value (byte) 33
	XML11CHARS[8232] = 35;
	Arrays.fill(XML11CHARS, 8233, 8255, (byte) 33 ); // Fill 22 of value (byte) 33
	Arrays.fill(XML11CHARS, 8255, 8257, (byte) -87 ); // Fill 2 of value (byte) -87
	Arrays.fill(XML11CHARS, 8257, 8304, (byte) 33 ); // Fill 47 of value (byte) 33
	Arrays.fill(XML11CHARS, 8304, 8592, (byte) -19 ); // Fill 288 of value (byte) -19
	Arrays.fill(XML11CHARS, 8592, 11264, (byte) 33 ); // Fill 2672 of value (byte) 33
	Arrays.fill(XML11CHARS, 11264, 12272, (byte) -19 ); // Fill 1008 of value (byte) -19
	Arrays.fill(XML11CHARS, 12272, 12289, (byte) 33 ); // Fill 17 of value (byte) 33
	Arrays.fill(XML11CHARS, 12289, 55296, (byte) -19 ); // Fill 43007 of value (byte) -19
	Arrays.fill(XML11CHARS, 57344, 63744, (byte) 33 ); // Fill 6400 of value (byte) 33
	Arrays.fill(XML11CHARS, 63744, 64976, (byte) -19 ); // Fill 1232 of value (byte) -19
	Arrays.fill(XML11CHARS, 64976, 65008, (byte) 33 ); // Fill 32 of value (byte) 33
	Arrays.fill(XML11CHARS, 65008, 65534, (byte) -19 ); // Fill 526 of value (byte) -19

	} // <clinit>()

	//
	// Public static methods
	//

	/**
	* Returns true if the specified character is a space character
	* as amdended in the XML 1.1 specification.
	*
	* @param c The character to check.
	*/
	public static boolean isXML11Space(int c) {
	return (c < 0x10000 && (XML11CHARS[c] & MASK_XML11_SPACE) != 0);
	} // isXML11Space(int):boolean

	/**
	* Returns true if the specified character is valid. This method
	* also checks the surrogate character range from 0x10000 to 0x10FFFF.
	* <p>
	* If the program chooses to apply the mask directly to the
	* <code>XML11CHARS</code> array, then they are responsible for checking
	* the surrogate character range.
	*
	* @param c The character to check.
	*/
	public static boolean isXML11Valid(int c) {
	return (c < 0x10000 && (XML11CHARS[c] & MASK_XML11_VALID) != 0)
	\|\| (0x10000 <= c && c <= 0x10FFFF);
	} // isXML11Valid(int):boolean

	/**
	* Returns true if the specified character is invalid.
	*
	* @param c The character to check.
	*/
	public static boolean isXML11Invalid(int c) {
	return !isXML11Valid(c);
	} // isXML11Invalid(int):boolean

	/**
	* Returns true if the specified character is valid and permitted outside
	* of a character reference.
	* That is, this method will return false for the same set as
	* isXML11Valid, except it also reports false for "control characters".
	*
	* @param c The character to check.
	*/
	public static boolean isXML11ValidLiteral(int c) {
	return ((c < 0x10000 && ((XML11CHARS[c] & MASK_XML11_VALID) != 0 && (XML11CHARS[c] & MASK_XML11_CONTROL) == 0))
	\|\| (0x10000 <= c && c <= 0x10FFFF));
	} // isXML11ValidLiteral(int):boolean

	/**
	* Returns true if the specified character can be considered
	* content in an external parsed entity.
	*
	* @param c The character to check.
	*/
	public static boolean isXML11Content(int c) {
	return (c < 0x10000 && (XML11CHARS[c] & MASK_XML11_CONTENT) != 0) \|\|
	(0x10000 <= c && c <= 0x10FFFF);
	} // isXML11Content(int):boolean

	/**
	* Returns true if the specified character can be considered
	* content in an internal parsed entity.
	*
	* @param c The character to check.
	*/
	public static boolean isXML11InternalEntityContent(int c) {
	return (c < 0x10000 && (XML11CHARS[c] & MASK_XML11_CONTENT_INTERNAL) != 0) \|\|
	(0x10000 <= c && c <= 0x10FFFF);
	} // isXML11InternalEntityContent(int):boolean

	/**
	* Returns true if the specified character is a valid name start
	* character as defined by production [4] in the XML 1.1
	* specification.
	*
	* @param c The character to check.
	*/
	public static boolean isXML11NameStart(int c) {
	return (c < 0x10000 && (XML11CHARS[c] & MASK_XML11_NAME_START) != 0)
	\|\| (0x10000 <= c && c < 0xF0000);
	} // isXML11NameStart(int):boolean

	/**
	* Returns true if the specified character is a valid name
	* character as defined by production [4a] in the XML 1.1
	* specification.
	*
	* @param c The character to check.
	*/
	public static boolean isXML11Name(int c) {
	return (c < 0x10000 && (XML11CHARS[c] & MASK_XML11_NAME) != 0)
	\|\| (c >= 0x10000 && c < 0xF0000);
	} // isXML11Name(int):boolean

	/**
	* Returns true if the specified character is a valid NCName start
	* character as defined by production [4] in Namespaces in XML
	* 1.1 recommendation.
	*
	* @param c The character to check.
	*/
	public static boolean isXML11NCNameStart(int c) {
	return (c < 0x10000 && (XML11CHARS[c] & MASK_XML11_NCNAME_START) != 0)
	\|\| (0x10000 <= c && c < 0xF0000);
	} // isXML11NCNameStart(int):boolean

	/**
	* Returns true if the specified character is a valid NCName
	* character as defined by production [5] in Namespaces in XML
	* 1.1 recommendation.
	*
	* @param c The character to check.
	*/
	public static boolean isXML11NCName(int c) {
	return (c < 0x10000 && (XML11CHARS[c] & MASK_XML11_NCNAME) != 0)
	\|\| (0x10000 <= c && c < 0xF0000);
	} // isXML11NCName(int):boolean

	/**
	* Returns whether the given character is a valid
	* high surrogate for a name character. This includes
	* all high surrogates for characters [0x10000-0xEFFFF].
	* In other words everything excluding planes 15 and 16.
	*
	* @param c The character to check.
	*/
	public static boolean isXML11NameHighSurrogate(int c) {
	return (0xD800 <= c && c <= 0xDB7F);
	}

	/*
	* [5] Name ::= NameStartChar NameChar*
	*/
	/**
	* Check to see if a string is a valid Name according to [5]
	* in the XML 1.1 Recommendation
	*
	* @param name string to check
	* @return true if name is a valid Name
	*/
	public static boolean isXML11ValidName(String name) {
	int length = name.length();
	if (length == 0)
	return false;
	int i = 1;
	char ch = name.charAt(0);
	if( !isXML11NameStart(ch) ) {
	if ( length > 1 && isXML11NameHighSurrogate(ch) ) {
	char ch2 = name.charAt(1);
	if ( !XMLChar.isLowSurrogate(ch2) \|\|
	!isXML11NameStart(XMLChar.supplemental(ch, ch2)) ) {
	return false;
	}
	i = 2;
	}
	else {
	return false;
	}
	}
	while (i < length) {
	ch = name.charAt(i);
	if ( !isXML11Name(ch) ) {
	if ( ++i < length && isXML11NameHighSurrogate(ch) ) {
	char ch2 = name.charAt(i);
	if ( !XMLChar.isLowSurrogate(ch2) \|\|
	!isXML11Name(XMLChar.supplemental(ch, ch2)) ) {
	return false;
	}
	}
	else {
	return false;
	}
	}
	++i;
	}
	return true;
	} // isXML11ValidName(String):boolean


	/*
	* from the namespace 1.1 rec
	* [4] NCName ::= NCNameStartChar NCNameChar*
	*/
	/**
	* Check to see if a string is a valid NCName according to [4]
	* from the XML Namespaces 1.1 Recommendation
	*
	* @param ncName string to check
	* @return true if name is a valid NCName
	*/
	public static boolean isXML11ValidNCName(String ncName) {
	int length = ncName.length();
	if (length == 0)
	return false;
	int i = 1;
	char ch = ncName.charAt(0);
	if( !isXML11NCNameStart(ch) ) {
	if ( length > 1 && isXML11NameHighSurrogate(ch) ) {
	char ch2 = ncName.charAt(1);
	if ( !XMLChar.isLowSurrogate(ch2) \|\|
	!isXML11NCNameStart(XMLChar.supplemental(ch, ch2)) ) {
	return false;
	}
	i = 2;
	}
	else {
	return false;
	}
	}
	while (i < length) {
	ch = ncName.charAt(i);
	if ( !isXML11NCName(ch) ) {
	if ( ++i < length && isXML11NameHighSurrogate(ch) ) {
	char ch2 = ncName.charAt(i);
	if ( !XMLChar.isLowSurrogate(ch2) \|\|
	!isXML11NCName(XMLChar.supplemental(ch, ch2)) ) {
	return false;
	}
	}
	else {
	return false;
	}
	}
	++i;
	}
	return true;
	} // isXML11ValidNCName(String):boolean

	/*
	* [7] Nmtoken ::= (NameChar)+
	*/
	/**
	* Check to see if a string is a valid Nmtoken according to [7]
	* in the XML 1.1 Recommendation
	*
	* @param nmtoken string to check
	* @return true if nmtoken is a valid Nmtoken
	*/
	public static boolean isXML11ValidNmtoken(String nmtoken) {
	int length = nmtoken.length();
	if (length == 0)
	return false;
	for (int i = 0; i < length; ++i ) {
	char ch = nmtoken.charAt(i);
	if( !isXML11Name(ch) ) {
	if ( ++i < length && isXML11NameHighSurrogate(ch) ) {
	char ch2 = nmtoken.charAt(i);
	if ( !XMLChar.isLowSurrogate(ch2) \|\|
	!isXML11Name(XMLChar.supplemental(ch, ch2)) ) {
	return false;
	}
	}
	else {
	return false;
	}
	}
	}
	return true;
	} // isXML11ValidName(String):boolean

	/**
	* Simple check to determine if qname is legal. If it returns false
	* then <param>str</param> is illegal; if it returns true then
	* <param>str</param> is legal.
	*/
	public static boolean isXML11ValidQName(String str) {

	final int colon = str.indexOf(':');

	if (colon == 0 \|\| colon == str.length() - 1) {
	return false;
	}

	if (colon > 0) {
	final String prefix = str.substring(0,colon);
	final String localPart = str.substring(colon+1);
	return isXML11ValidNCName(prefix) && isXML11ValidNCName(localPart);
	}
	else {
	return isXML11ValidNCName(str);
	}
	}

	} // class XML11Char

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