5 // Ben Maurer (bmaurer@users.sourceforge.net)
6 // Atsushi Enomoto (ginga@kit.hi-ho.ne.jp)
9 // (C) 2003 Atsushi Enomoto
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:
21 // The above copyright notice and this permission notice shall be
22 // included in all copies or substantial portions of the Software.
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.
34 using System.Collections;
36 using System.Xml.XPath;
39 namespace Mono.Xml.Xsl.Operations {
40 internal class XslChoose : XslCompiledElement {
41 XslOperation defaultChoice = null;
42 ArrayList conditions = new ArrayList ();
44 public XslChoose (Compiler c) : base (c) {}
46 protected override void Compile (Compiler c)
48 if (!c.Input.MoveToFirstChild ())
49 throw new XsltCompileException ("Expecting non-empty element", null, c.Input);
52 if (c.Input.NodeType != XPathNodeType.Element) continue;
53 if (c.Input.NamespaceURI != XsltNamespace) continue;
55 if (defaultChoice != null)
56 throw new XsltCompileException ("otherwise attribute must be last", null, c.Input);
58 switch (c.Input.LocalName) {
60 conditions.Add (new XslIf (c));
64 if (c.Input.MoveToFirstChild ()) {
65 defaultChoice = c.CompileTemplateContent ();
66 c.Input.MoveToParent ();
71 if (c.CurrentStylesheet.Version == "1.0")
72 throw new XsltCompileException ("XSLT choose element accepts only when and otherwise elements", null, c.Input);
75 } while (c.Input.MoveToNext ());
77 c.Input.MoveToParent ();
79 if (conditions.Count == 0)
80 throw new XsltCompileException ("Choose must have 1 or more when elements", null, c.Input);
83 public override void Evaluate (XslTransformProcessor p)
85 int len = conditions.Count;
86 for (int i = 0; i < len; i++) {
87 if (((XslIf)conditions [i]).EvaluateIfTrue (p))
91 if (defaultChoice != null)
92 defaultChoice.Evaluate (p);