mcs/class/Commons.Xml.Relaxng/Commons.Xml.Relaxng/RelaxngDefaultDatatypes.cs

   1 //
   2 // RelaxngDefaultDatatypes.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (c) 2004 Novell Inc.
   8 // All rights reserved
   9 //
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31 using System;
  32 using System.Xml;
  33
  34 namespace Commons.Xml.Relaxng
  35 {
  36         public class RelaxngString : RelaxngDatatype
  37         {
  38                 static RelaxngString instance;
  39                 static RelaxngString ()
  40                 {
  41                         instance = new RelaxngString ();
  42                 }
  43
  44                 internal static RelaxngString Instance {
  45                         get { return instance; }
  46                 }
  47
  48                 public override string Name { get { return "string"; } }
  49                 public override string NamespaceURI { get { return String.Empty; } }
  50
  51                 internal override bool IsContextDependent {
  52                         get { return false; }
  53                 }
  54
  55                 public override bool IsValid (string text, XmlReader reader)
  56                 {
  57                         return true;
  58                 }
  59
  60                 public override object Parse (string text, XmlReader reader)
  61                 {
  62                         return text;
  63                 }
  64
  65                 public override bool Compare (object o1, object o2)
  66                 {
  67                         return (string) o1 == (string) o2;
  68                 }
  69         }
  70
  71         public class RelaxngToken : RelaxngDatatype
  72         {
  73                 static RelaxngToken instance;
  74                 static RelaxngToken ()
  75                 {
  76                         instance = new RelaxngToken ();
  77                 }
  78
  79                 internal static RelaxngToken Instance {
  80                         get { return instance; }
  81                 }
  82
  83                 public override string Name { get { return "token"; } }
  84                 public override string NamespaceURI { get { return String.Empty; } }
  85
  86                 internal override bool IsContextDependent {
  87                         get { return false; }
  88                 }
  89
  90                 public override bool IsValid (string text, XmlReader reader)
  91                 {
  92                         return true;
  93                 }
  94
  95                 public override object Parse (string text, XmlReader reader)
  96                 {
  97                         return Util.NormalizeWhitespace (text);
  98                 }
  99
 100                 int SkipWhitespaces (string s, int i)
 101                 {
 102                         while (i < s.Length) {
 103                                 switch (s [i]) {
 104                                 case '\n': case '\r': case ' ': case '\t':
 105                                         i++;
 106                                         continue;
 107                                 }
 108                                 break;
 109                         }
 110                         return i;
 111                 }
 112
 113                 public override bool Compare (object o1, object o2)
 114                 {
 115                         string s1 = o1 as string;
 116                         string s2 = o2 as string;
 117
 118                         int i1 = 0;
 119                         int i2 = 0;
 120
 121                         while (i1 < s1.Length && i2 < s2.Length) {
 122                                 i1 = SkipWhitespaces (s1, i1);
 123                                 i2 = SkipWhitespaces (s2, i2);
 124                                 while (i1 < s1.Length && i2 < s2.Length) {
 125                                         if (s1 [i1] != s2 [i2])
 126                                                 return false;
 127                                         i1++;
 128                                         i2++;
 129                                         if (i1 == s1.Length || i2 == s2.Length)
 130                                                 break;
 131                                         if (XmlChar.IsWhitespace (s1 [i1])) {
 132                                                 if (!XmlChar.IsWhitespace (s2 [i2]))
 133                                                         return false;
 134                                                 else
 135                                                         break;
 136                                         }
 137                                         else if (XmlChar.IsWhitespace (s2 [i2]))
 138                                                 return false;
 139                                 }
 140                         }
 141                         i1 = SkipWhitespaces (s1, i1);
 142                         i2 = SkipWhitespaces (s2, i2);
 143                         return i1 == s1.Length && i2 == s2.Length;
 144                 }
 145
 146                 public override bool CompareString (string s1, string s2, XmlReader reader)
 147                 {
 148                         return Compare (s1, s2);
 149                 }
 150         }
 151 }