mcs/class/corlib/System.Globalization/TextInfo.cs

   1 //
   2 // System.Globalization.TextInfo.cs
   3 //
   4 // Author:
   5 //      Dick Porter (dick@ximian.com)
   6 //      Duncan Mak (duncan@ximian.com)
   7 //
   8 // (C) 2002 Ximian, Inc.
   9 //
  10 // TODO:
  11 //   Missing the various code page mappings.
  12 //   Missing the OnDeserialization implementation.
  13 //
  14 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  15 //
  16 // Permission is hereby granted, free of charge, to any person obtaining
  17 // a copy of this software and associated documentation files (the
  18 // "Software"), to deal in the Software without restriction, including
  19 // without limitation the rights to use, copy, modify, merge, publish,
  20 // distribute, sublicense, and/or sell copies of the Software, and to
  21 // permit persons to whom the Software is furnished to do so, subject to
  22 // the following conditions:
  23 //
  24 // The above copyright notice and this permission notice shall be
  25 // included in all copies or substantial portions of the Software.
  26 //
  27 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  28 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  29 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  30 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  31 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  32 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  33 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  34 //
  35 using System;
  36 using System.Globalization;
  37 using System.Runtime.Serialization;
  38 using System.Runtime.InteropServices;
  39
  40 namespace System.Globalization {
  41
  42         [Serializable]
  43         public class TextInfo: IDeserializationCallback
  44         {
  45
  46                 [StructLayout (LayoutKind.Sequential)]
  47                 struct Data {
  48                         public int ansi;
  49                         public int ebcdic;
  50                         public int mac;
  51                         public int oem;
  52                         public byte list_sep;
  53                 }
  54
  55                 int m_win32LangID;
  56                 int m_nDataItem;
  57                 bool m_useUserOverride;
  58
  59                 [NonSerialized]
  60                 readonly CultureInfo ci;
  61
  62                 [NonSerialized]
  63                 readonly Data data;
  64
  65                 internal unsafe TextInfo (CultureInfo ci, int lcid, void* data)
  66                 {
  67                         this.m_win32LangID = lcid;
  68                         this.ci = ci;
  69                         if (data != null)
  70                                 this.data = *(Data*) data;
  71                         else {
  72                                 this.data = new Data ();
  73                                 this.data.list_sep = (byte) '.';
  74                         }
  75                 }
  76
  77                 public virtual int ANSICodePage
  78                 {
  79                         get {
  80                                 return data.ansi;
  81                         }
  82                 }
  83
  84                 public virtual int EBCDICCodePage
  85                 {
  86                         get {
  87                                 return data.ebcdic;
  88                         }
  89                 }
  90
  91                 public virtual string ListSeparator
  92                 {
  93                         get {
  94
  95                                 return ((char) data.list_sep).ToString ();
  96                         }
  97                 }
  98
  99                 public virtual int MacCodePage
 100                 {
 101                         get {
 102                                 return data.mac;
 103                         }
 104                 }
 105
 106                 public virtual int OEMCodePage
 107                 {
 108                         get {
 109                                 return data.oem;
 110                         }
 111                 }
 112
 113                 public override bool Equals (object obj)
 114                 {
 115                         if (obj == null)
 116                                 return false;
 117                         TextInfo other = obj as TextInfo;
 118                         if (other == null)
 119                                 return false;
 120                         if (other.m_win32LangID != m_win32LangID)
 121                                 return false;
 122                         if (other.ci != ci)
 123                                 return false;
 124                         return true;
 125                 }
 126
 127                 public override int GetHashCode()
 128                 {
 129                         return (m_win32LangID);
 130                 }
 131
 132                 public virtual char ToLower(char c)
 133                 {
 134                         return Char.ToLower (c);
 135                 }
 136
 137                 public virtual string ToLower(string str)
 138                 {
 139                         if(str==null)
 140                                 throw new ArgumentNullException("string is null");
 141
 142                         return str.ToLower (ci);
 143                 }
 144
 145                 public override string ToString()
 146                 {
 147                         return "TextInfo - " + m_win32LangID;
 148                 }
 149
 150                 public string ToTitleCase (string str)
 151                 {
 152                         if(str == null)
 153                                 throw new ArgumentNullException("string is null");
 154
 155                         Text.StringBuilder s = new Text.StringBuilder ();
 156                         bool space_seen = true;
 157
 158                         for (int i = 0; i < str.Length; i ++){
 159                                 char c = str [i];
 160                                 if (Char.IsLetter (c)){
 161                                         if (space_seen)
 162                                                 s.Append (Char.ToUpper (c, ci));
 163                                         else
 164                                                 s.Append (Char.ToLower (c, ci));
 165                                         space_seen = false;
 166                                 } else {
 167                                         s.Append (c);
 168                                         if (Char.IsWhiteSpace (c))
 169                                                 space_seen = true;
 170                                 }
 171                         }
 172
 173                         return s.ToString ();
 174                 }
 175
 176                 public virtual char ToUpper (char c)
 177                 {
 178                         return Char.ToUpper (c, ci);
 179                 }
 180
 181                 public virtual string ToUpper (string str)
 182                 {
 183                         if(str==null)
 184                                 throw new ArgumentNullException("string is null");
 185
 186                         return str.ToUpper (ci);
 187                 }
 188
 189                 /* IDeserialization interface */
 190                 [MonoTODO]
 191                 void IDeserializationCallback.OnDeserialization(object sender)
 192                 {
 193                 }
 194         }
 195 }