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

   1 //
   2 // XslAttributeSet.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 using System;
  13 using System.Collections;
  14 using System.Collections.Specialized;
  15 using System.Xml;
  16 using System.Xml.Schema;
  17 using System.Xml.XPath;
  18 using System.Xml.Xsl;
  19 using Mono.Xml.Xsl.Operations;
  20
  21 using QName = System.Xml.XmlQualifiedName;
  22
  23 namespace Mono.Xml.Xsl {
  24         internal class XslAttributeSet : XslCompiledElement {
  25                 QName name;
  26                 // [QName]=>XslAttributeSet
  27                 ArrayList usedAttributeSets = new ArrayList ();
  28
  29                 // [QName]=>XslAttribute
  30                 ArrayList attributes = new ArrayList ();
  31
  32                 public XslAttributeSet (Compiler c) : base (c) {}
  33
  34                 public QName Name {
  35                         get { return name; }
  36                 }
  37
  38                 protected override void Compile (Compiler c)
  39                 {
  40                         this.name = c.ParseQNameAttribute ("name");
  41
  42                         QName [] attrSets = c.ParseQNameListAttribute ("use-attribute-sets");
  43                         if (attrSets != null)
  44                                 foreach (QName q in attrSets)
  45                                         usedAttributeSets.Add (q);
  46
  47
  48                         if (!c.Input.MoveToFirstChild ()) return;
  49
  50                         do {
  51                                 switch (c.Input.NodeType) {
  52                                 case XPathNodeType.Element:
  53                                         break;
  54                                 case XPathNodeType.Whitespace:
  55                                         continue;
  56                                 default:
  57                                         if (c.CurrentStylesheet.Version == "1.0")
  58                                                 throw new XsltCompileException ("Content " + c.Input.NodeType + " is not allowed in XSLT attribute-set element.", null, c.Input);
  59                                         break;
  60                                 }
  61
  62                                 if (c.Input.NamespaceURI != XsltNamespace || c.Input.LocalName != "attribute")
  63                                         throw new XsltCompileException ("Invalid attr set content", null, c.Input);
  64                                 attributes.Add (new XslAttribute (c));
  65                         } while (c.Input.MoveToNext ());
  66
  67                         c.Input.MoveToParent ();
  68
  69                 }
  70
  71                 public void Merge (XslAttributeSet s)
  72                 {
  73                         attributes.AddRange (s.attributes);
  74
  75                         foreach (QName q in s.usedAttributeSets)
  76                                 if (!usedAttributeSets.Contains (q))
  77                                         usedAttributeSets.Add (q);
  78                 }
  79
  80                 public override void Evaluate (XslTransformProcessor p) {
  81                         p.SetBusy (this);
  82
  83                         if (usedAttributeSets != null) {
  84                                 for (int i = 0; i < usedAttributeSets.Count; i++) {
  85                                         QName set = (QName) usedAttributeSets [i];
  86                                         XslAttributeSet s = p.ResolveAttributeSet (set);
  87                                         if (s == null)
  88                                                 throw new XsltException ("Could not resolve attribute set", null, p.CurrentNode);
  89
  90                                         if (p.IsBusy (s))
  91                                                 throw new XsltException ("circular dependency", null, p.CurrentNode);
  92
  93                                         s.Evaluate (p);
  94                                 }
  95                         }
  96
  97                         for (int i = 0; i < attributes.Count; i++)
  98                                 ((XslAttribute) attributes [i]).Evaluate (p);
  99
 100                         p.SetFree (this);
 101                 }
 102         }
 103 }