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