MonoRail/Castle.MonoRail.Views.Brail/XmlExtension.cs

   1 using System.Collections;
   2 using System.IO;
   3 using System.Xml;
   4 using Boo.Lang;
   5
   6 namespace Castle.MonoRail.Views.Brail
   7 {
   8     public class XmlExtension : IDslLanguageExtension
   9     {
  10         readonly private TextWriter _output = null;
  11         private readonly XmlWriter writer;
  12
  13         public XmlExtension(TextWriter output)
  14         {
  15             _output = output;
  16             this.writer = XmlWriter.Create(_output);
  17         }
  18
  19         public TextWriter Output
  20         {
  21             get { return _output; }
  22         }
  23
  24         public void text(string text)
  25         {
  26             writer.WriteString(text);
  27         }
  28
  29         private void BlockTag(string tag, IDictionary attributes, ICallable block)
  30         {
  31             writer.WriteStartElement(tag);
  32
  33             if (null != attributes)
  34             {
  35                 foreach (DictionaryEntry entry in attributes)
  36                 {
  37                     writer.WriteAttributeString((string)entry.Key,(string)entry.Value);
  38                 }
  39             }
  40
  41             if (block != null)
  42             {
  43                 block.Call(null);
  44             }
  45             writer.WriteEndElement();
  46         }
  47
  48         public void Tag(string name)
  49         {
  50             BlockTag(name, null, null);
  51         }
  52
  53         public void Tag(string name, ICallable block)
  54         {
  55             BlockTag(name, null, block);
  56         }
  57
  58         public void Tag(string name, IDictionary attributes, ICallable block)
  59         {
  60             BlockTag(name, attributes, block);
  61         }
  62
  63         public void Flush()
  64         {
  65             writer.Flush();
  66         }
  67     }
  68 }