mcs/class/System.XML/Mono.Xml.Xsl.Operations/XslApplyTemplates.cs

   1 //
   2 // XslApplyTemplates.cs
   3 //
   4 // Authors:
   5 //      Ben Maurer (bmaurer@users.sourceforge.net)
   6 //      Atsushi Enomoto (ginga@kit.hi-ho.ne.jp)
   7 //
   8 // (C) 2003 Ben Maurer
   9 // (C) 2003 Atsushi Enomoto
  10 //
  11
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System;
  34 using System.Collections;
  35 using System.Xml;
  36 using System.Xml.XPath;
  37 using System.Xml.Xsl;
  38
  39 namespace Mono.Xml.Xsl.Operations {
  40
  41         internal class XslApplyTemplates : XslCompiledElement {
  42                 XPathExpression select;
  43                 XmlQualifiedName mode;
  44                 ArrayList withParams;
  45
  46                 public XslApplyTemplates (Compiler c) : base (c) {}
  47
  48                 protected override void Compile (Compiler c)
  49                 {
  50                         select = c.CompileExpression (c.GetAttribute ("select"));
  51                         mode = c.ParseQNameAttribute ("mode");
  52
  53                         if (c.Input.MoveToFirstChild ()) {
  54                                 do {
  55                                         switch (c.Input.NodeType) {
  56                                         case XPathNodeType.Comment:
  57                                         case XPathNodeType.ProcessingInstruction:
  58                                         case XPathNodeType.Whitespace:
  59                                         case XPathNodeType.SignificantWhitespace:
  60                                                 continue;
  61                                         case XPathNodeType.Element:
  62                                                 if (c.Input.NamespaceURI != XsltNamespace)
  63                                                         throw new XsltCompileException ("Unexpected element", null, c.Input); // TODO: fwd compat
  64
  65                                                 switch (c.Input.LocalName)
  66                                                 {
  67                                                         case "with-param":
  68                                                                 if (withParams == null)
  69                                                                         withParams = new ArrayList ();
  70                                                                 withParams.Add (new XslVariableInformation (c));
  71                                                                 break;
  72
  73                                                         case "sort":
  74                                                                 if (select == null)
  75                                                                         select = c.CompileExpression ("*");
  76                                                                 c.AddSort (select, new Sort (c));
  77                                                                 break;
  78                                                         default:
  79                                                                 throw new XsltCompileException ("Unexpected element", null, c.Input); // todo forwards compat
  80                                                 }
  81                                                 break;
  82                                         default:
  83                                                 throw new XsltCompileException ("Unexpected node type " + c.Input.NodeType, null, c.Input);     // todo forwards compat
  84                                         }
  85                                 } while (c.Input.MoveToNext ());
  86                                 c.Input.MoveToParent ();
  87                         }
  88                 }
  89
  90                 public override void Evaluate (XslTransformProcessor p)
  91                 {
  92                         if (select == null)
  93                                 p.ApplyTemplates (p.CurrentNode.SelectChildren (XPathNodeType.All), mode, withParams);
  94                         else
  95                                 p.ApplyTemplates (p.Select (select), mode, withParams);
  96                 }
  97         }
  98 }