mcs/class/System.XML/Mono.Xml.Xsl/XmlWriterEmitter.cs

   1 //
   2 // XmlWriterEmitter.cs
   3 //
   4 // Authors:
   5 //      Oleg Tkachenko (oleg@tkachenko.com)
   6 //      Atsushi Enomoto (atsushi@ximian.com)
   7 //
   8 // (C) 2003 Oleg Tkachenko
   9 // (C) 2004 Atsushi Enomoto
  10 //
  11
  12 using System;
  13 using System.Text;
  14 using System.Xml;
  15
  16 namespace Mono.Xml.Xsl
  17 {
  18         /// <summary>
  19         /// Emitter, which emits result tree to a XmlWriter.
  20         /// </summary>
  21         internal class XmlWriterEmitter : Emitter
  22         {
  23                 XmlWriter writer;
  24
  25                 public XmlWriterEmitter (XmlWriter writer) {
  26                         this.writer = writer;
  27                 }
  28
  29                 #region # Emitter's methods implementaion
  30
  31                 public override void WriteStartDocument (Encoding encoding, StandaloneType standalone)
  32                 {
  33 #if docent
  34                         if (standalone == StandaloneType.NONE)
  35                                 writer.WriteStartDocument ();
  36                         else
  37                                 writer.WriteStartDocument (standalone == StandaloneType.YES);
  38 #else
  39                         string standaloneStr = "";
  40                         switch (standalone) {
  41                         case StandaloneType.YES:
  42                                 standaloneStr = " standalone=\"yes\"";
  43                                 break;
  44                         case StandaloneType.NO:
  45                                 standaloneStr = " standalone=\"no\"";
  46                                 break;
  47                         }
  48
  49                         if (encoding == null)
  50                                 writer.WriteProcessingInstruction ("xml", "version=\"1.0\"" + standaloneStr);
  51                         else
  52                                 writer.WriteProcessingInstruction ("xml",
  53                                         "version=\"1.0\" encoding=\""
  54                                         + encoding.WebName + "\""
  55                                         + standaloneStr);
  56 #endif
  57                 }
  58
  59                 public override void WriteEndDocument ()
  60                 {
  61 #if docent
  62                         writer.WriteEndDocument ();
  63 #endif
  64                 }
  65
  66                 public override void WriteDocType (string type, string publicId, string systemId)
  67                 {
  68                         if (publicId != null && publicId != String.Empty &&
  69                                 (systemId == null || systemId == String.Empty))
  70                                 // This is an error.
  71                                 // when PUBLIC id exists, SYSTEM id is required.
  72                                 return;
  73                         writer.WriteDocType (type, publicId, systemId, null);
  74                 }
  75
  76                 public override void WriteStartElement (string prefix, string localName, string nsURI)
  77                 {
  78                         writer.WriteStartElement (prefix, localName, nsURI);
  79                 }
  80
  81                 public override void WriteEndElement ()
  82                 {
  83                         writer.WriteEndElement ();
  84                 }
  85
  86                 public override void WriteFullEndElement ()
  87                 {
  88                         writer.WriteFullEndElement ();
  89                 }
  90
  91                 public override void WriteAttributeString (string prefix, string localName, string nsURI, string value)
  92                 {
  93                         writer.WriteAttributeString (prefix, localName, nsURI, value);
  94                 }
  95
  96                 public override void WriteComment (string text) {
  97                         if (text.IndexOf ("--") >= 0)
  98                                 text = text.Replace ("--", "- -");
  99
 100                         if (text.EndsWith ("-"))
 101                                 writer.WriteComment (text + ' ');
 102                         else
 103                                 writer.WriteComment (text);
 104                 }
 105
 106                 public override void WriteProcessingInstruction (string name, string text)
 107                 {
 108                         writer.WriteProcessingInstruction (name, text);
 109                 }
 110
 111                 public override void WriteString (string text)
 112                 {
 113                         writer.WriteString (text);
 114                 }
 115
 116                 public override void WriteRaw (string data)
 117                 {
 118                         writer.WriteRaw (data);
 119                 }
 120
 121                 public override void WriteCDataSection (string text)
 122                 {
 123                         int index = text.IndexOf ("]]>");
 124                         if (index >= 0) {
 125                                 writer.WriteCData (text.Substring (0, index + 2));
 126                                 WriteCDataSection (text.Substring (index + 2));
 127                         } else
 128                                 writer.WriteCData (text);
 129                 }
 130
 131                 public override void WriteWhitespace (string value)
 132                 {
 133                         writer.WriteWhitespace (value);
 134                 }
 135
 136                 public override void Done ()
 137                 {
 138                         writer.Flush ();
 139                 }
 140                 #endregion
 141         }
 142 }