415 lines
14 KiB
C#
415 lines
14 KiB
C#
// -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
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//
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// System.Xml.XmlChar.cs
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//
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// Author:
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// Jason Diamond (jason@injektilo.org)
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//
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// (C) 2001 Jason Diamond http://injektilo.org/
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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namespace System.Xml
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{
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internal class XmlChar
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{
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public static readonly char [] WhitespaceChars = new char [] {' ', '\n', '\t', '\r'};
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public static bool IsWhitespace (int ch)
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{
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return ch == 0x20 || ch == 0x9 || ch == 0xD || ch == 0xA;
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}
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public static bool IsWhitespace (string str)
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{
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for (int i = 0; i < str.Length; i++)
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if (!IsWhitespace (str [i])) return false;
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return true;
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}
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public static int IndexOfNonWhitespace (string str)
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{
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for (int i = 0; i < str.Length; i++)
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if (!IsWhitespace (str [i])) return i;
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return -1;
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}
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public static bool IsFirstNameChar (int ch)
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{
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if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')) {
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return true;
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} else if ((uint) ch <= 0xFFFF) {
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return (nameBitmap[(firstNamePages[ch >> 8] << 3) + ((ch & 0xFF) >> 5)] & (1 << (ch & 0x1F))) != 0;
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}
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return false;
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}
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public static bool IsValid (int ch)
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{
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return !IsInvalid (ch);
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}
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public static bool IsInvalid (int ch)
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{
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switch (ch) {
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case 9:
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case 10:
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case 13:
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return false;
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}
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if (ch < 32)
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return true;
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if (ch < 0xD800)
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return false;
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if (ch < 0xE000)
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return true;
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if (ch < 0xFFFE)
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return false;
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if (ch < 0x10000)
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return true;
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if (ch < 0x110000)
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return false;
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else
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return true;
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}
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public static int IndexOfInvalid (string s, bool allowSurrogate)
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{
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for (int i = 0; i < s.Length; i++)
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if (IsInvalid (s [i])) {
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if (!allowSurrogate ||
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i + 1 == s.Length ||
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s [i] < '\uD800' ||
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s [i] >= '\uDC00' ||
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s [i + 1] < '\uDC00' ||
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s [i + 1] >= '\uE000')
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return i;
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i++;
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}
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return -1;
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}
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public static int IndexOfInvalid (char [] s, int start, int length, bool allowSurrogate)
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{
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int end = start + length;
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if (s.Length < end)
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throw new ArgumentOutOfRangeException ("length");
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for (int i = start; i < end; i++)
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if (IsInvalid (s [i])) {
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if (!allowSurrogate ||
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i + 1 == end ||
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s [i] < '\uD800' ||
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s [i] >= '\uDC00' ||
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s [i + 1] < '\uDC00' ||
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s [i + 1] >= '\uE000')
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return i;
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i++;
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}
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return -1;
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}
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public static bool IsNameChar (int ch)
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{
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if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')) {
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return true;
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} else if ((uint) ch <= 0xFFFF) {
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return (nameBitmap[(namePages[ch >> 8] << 3) + ((ch & 0xFF) >> 5)] & (1 << (ch & 0x1F))) != 0;
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} else {
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return false;
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}
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}
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public static bool IsNCNameChar (int ch)
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{
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bool result = false;
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if (ch >= 0 && ch <= 0xFFFF && ch != ':')
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{
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result = (nameBitmap[(namePages[ch >> 8] << 3) + ((ch & 0xFF) >> 5)] & (1 << (ch & 0x1F))) != 0;
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}
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return result;
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}
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public static bool IsName (string str)
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{
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if (str.Length == 0)
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return false;
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if (!IsFirstNameChar (str [0]))
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return false;
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for (int i = 1; i < str.Length; i++)
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if (!IsNameChar (str [i]))
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return false;
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return true;
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}
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public static bool IsNCName (string str)
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{
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if (str.Length == 0)
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return false;
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if (!IsFirstNameChar (str [0]))
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return false;
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for (int i = 0; i < str.Length; i++)
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if (!IsNCNameChar (str [i]))
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return false;
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return true;
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}
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public static bool IsNmToken (string str)
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{
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if (str.Length == 0)
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return false;
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for (int i = 0; i < str.Length; i++)
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if (!IsNameChar (str [i]))
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return false;
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return true;
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}
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public static bool IsPubidChar (int ch)
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{
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return (IsWhitespace(ch) && ch != '\t') | ('a' <= ch && ch <= 'z') | ('A' <= ch && ch <= 'Z') | ('0' <= ch && ch <= '9') | "-'()+,./:=?;!*#@$_%".IndexOf((char)ch) >= 0;
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}
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public static bool IsPubid (string str)
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{
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for (int i = 0; i < str.Length; i++)
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if (!IsPubidChar (str [i]))
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return false;
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return true;
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}
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// encodings (copied from XmlConstructs.cs)
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/// <summary>
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/// Returns true if the encoding name is a valid IANA encoding.
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/// This method does not verify that there is a decoder available
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/// for this encoding, only that the characters are valid for an
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/// IANA encoding name.
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/// </summary>
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/// <param name="ianaEncoding">The encoding to check.</param>
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/// <returns></returns>
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public static bool IsValidIANAEncoding (String ianaEncoding)
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{
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if (ianaEncoding != null)
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{
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int length = ianaEncoding.Length;
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if (length > 0)
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{
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char c = ianaEncoding[0];
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if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z'))
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{
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for (int i = 1; i < length; i++)
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{
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c = ianaEncoding[i];
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if ((c < 'A' || c > 'Z') && (c < 'a' || c > 'z') &&
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(c < '0' || c > '9') && c != '.' && c != '_' &&
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c != '-')
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{
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return false;
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}
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}
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return true;
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}
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}
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}
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return false;
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}
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public static int GetPredefinedEntity (string name)
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{
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switch (name) {
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case "amp":
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return '&';
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case "lt":
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return '<';
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case "gt":
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return '>';
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case "quot":
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return '"';
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case "apos":
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return '\'';
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default:
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return -1;
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}
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}
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static readonly byte [] firstNamePages =
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{
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0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x00,
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0x00, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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0x10, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x13,
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0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x15, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x17,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x18,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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static readonly byte [] namePages =
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{
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0x19, 0x03, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x00,
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0x00, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25,
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0x10, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x13,
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0x26, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x27, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x17,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x18,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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static readonly uint [] nameBitmap =
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{
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
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0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
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0x00000000, 0x04000000, 0x87FFFFFE, 0x07FFFFFE,
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0x00000000, 0x00000000, 0xFF7FFFFF, 0xFF7FFFFF,
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0xFFFFFFFF, 0x7FF3FFFF, 0xFFFFFDFE, 0x7FFFFFFF,
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0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFE00F, 0xFC31FFFF,
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0x00FFFFFF, 0x00000000, 0xFFFF0000, 0xFFFFFFFF,
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0xFFFFFFFF, 0xF80001FF, 0x00000003, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0xFFFFD740, 0xFFFFFFFB, 0x547F7FFF, 0x000FFFFD,
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0xFFFFDFFE, 0xFFFFFFFF, 0xDFFEFFFF, 0xFFFFFFFF,
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0xFFFF0003, 0xFFFFFFFF, 0xFFFF199F, 0x033FCFFF,
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0x00000000, 0xFFFE0000, 0x027FFFFF, 0xFFFFFFFE,
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0x0000007F, 0x00000000, 0xFFFF0000, 0x000707FF,
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0x00000000, 0x07FFFFFE, 0x000007FE, 0xFFFE0000,
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0xFFFFFFFF, 0x7CFFFFFF, 0x002F7FFF, 0x00000060,
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0xFFFFFFE0, 0x23FFFFFF, 0xFF000000, 0x00000003,
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0xFFF99FE0, 0x03C5FDFF, 0xB0000000, 0x00030003,
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0xFFF987E0, 0x036DFDFF, 0x5E000000, 0x001C0000,
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0xFFFBAFE0, 0x23EDFDFF, 0x00000000, 0x00000001,
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0xFFF99FE0, 0x23CDFDFF, 0xB0000000, 0x00000003,
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0xD63DC7E0, 0x03BFC718, 0x00000000, 0x00000000,
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0xFFFDDFE0, 0x03EFFDFF, 0x00000000, 0x00000003,
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0xFFFDDFE0, 0x03EFFDFF, 0x40000000, 0x00000003,
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0xFFFDDFE0, 0x03FFFDFF, 0x00000000, 0x00000003,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0xFFFFFFFE, 0x000D7FFF, 0x0000003F, 0x00000000,
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0xFEF02596, 0x200D6CAE, 0x0000001F, 0x00000000,
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0x00000000, 0x00000000, 0xFFFFFEFF, 0x000003FF,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0xFFFFFFFF, 0xFFFF003F, 0x007FFFFF,
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0x0007DAED, 0x50000000, 0x82315001, 0x002C62AB,
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0x40000000, 0xF580C900, 0x00000007, 0x02010800,
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0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
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0x0FFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x03FFFFFF,
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0x3F3FFFFF, 0xFFFFFFFF, 0xAAFF3F3F, 0x3FFFFFFF,
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0xFFFFFFFF, 0x5FDFFFFF, 0x0FCF1FDC, 0x1FDC1FFF,
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0x00000000, 0x00004C40, 0x00000000, 0x00000000,
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0x00000007, 0x00000000, 0x00000000, 0x00000000,
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0x00000080, 0x000003FE, 0xFFFFFFFE, 0xFFFFFFFF,
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0x001FFFFF, 0xFFFFFFFE, 0xFFFFFFFF, 0x07FFFFFF,
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0xFFFFFFE0, 0x00001FFF, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
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0xFFFFFFFF, 0x0000003F, 0x00000000, 0x00000000,
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0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
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0xFFFFFFFF, 0x0000000F, 0x00000000, 0x00000000,
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0x00000000, 0x07FF6000, 0x87FFFFFE, 0x07FFFFFE,
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0x00000000, 0x00800000, 0xFF7FFFFF, 0xFF7FFFFF,
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0x00FFFFFF, 0x00000000, 0xFFFF0000, 0xFFFFFFFF,
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0xFFFFFFFF, 0xF80001FF, 0x00030003, 0x00000000,
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0xFFFFFFFF, 0xFFFFFFFF, 0x0000003F, 0x00000003,
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0xFFFFD7C0, 0xFFFFFFFB, 0x547F7FFF, 0x000FFFFD,
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0xFFFFDFFE, 0xFFFFFFFF, 0xDFFEFFFF, 0xFFFFFFFF,
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0xFFFF007B, 0xFFFFFFFF, 0xFFFF199F, 0x033FCFFF,
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0x00000000, 0xFFFE0000, 0x027FFFFF, 0xFFFFFFFE,
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0xFFFE007F, 0xBBFFFFFB, 0xFFFF0016, 0x000707FF,
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0x00000000, 0x07FFFFFE, 0x0007FFFF, 0xFFFF03FF,
|
|
0xFFFFFFFF, 0x7CFFFFFF, 0xFFEF7FFF, 0x03FF3DFF,
|
|
0xFFFFFFEE, 0xF3FFFFFF, 0xFF1E3FFF, 0x0000FFCF,
|
|
0xFFF99FEE, 0xD3C5FDFF, 0xB080399F, 0x0003FFCF,
|
|
0xFFF987E4, 0xD36DFDFF, 0x5E003987, 0x001FFFC0,
|
|
0xFFFBAFEE, 0xF3EDFDFF, 0x00003BBF, 0x0000FFC1,
|
|
0xFFF99FEE, 0xF3CDFDFF, 0xB0C0398F, 0x0000FFC3,
|
|
0xD63DC7EC, 0xC3BFC718, 0x00803DC7, 0x0000FF80,
|
|
0xFFFDDFEE, 0xC3EFFDFF, 0x00603DDF, 0x0000FFC3,
|
|
0xFFFDDFEC, 0xC3EFFDFF, 0x40603DDF, 0x0000FFC3,
|
|
0xFFFDDFEC, 0xC3FFFDFF, 0x00803DCF, 0x0000FFC3,
|
|
0x00000000, 0x00000000, 0x00000000, 0x00000000,
|
|
0xFFFFFFFE, 0x07FF7FFF, 0x03FF7FFF, 0x00000000,
|
|
0xFEF02596, 0x3BFF6CAE, 0x03FF3F5F, 0x00000000,
|
|
0x03000000, 0xC2A003FF, 0xFFFFFEFF, 0xFFFE03FF,
|
|
0xFEBF0FDF, 0x02FE3FFF, 0x00000000, 0x00000000,
|
|
0x00000000, 0x00000000, 0x00000000, 0x00000000,
|
|
0x00000000, 0x00000000, 0x1FFF0000, 0x00000002,
|
|
0x000000A0, 0x003EFFFE, 0xFFFFFFFE, 0xFFFFFFFF,
|
|
0x661FFFFF, 0xFFFFFFFE, 0xFFFFFFFF, 0x77FFFFFF
|
|
};
|
|
}
|
|
}
|