108 lines
3.2 KiB
C#
108 lines
3.2 KiB
C#
//
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// XslForEach.cs
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//
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// Authors:
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// Ben Maurer (bmaurer@users.sourceforge.net)
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// Atsushi Enomoto (ginga@kit.hi-ho.ne.jp)
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//
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// (C) 2003 Ben Maurer
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// (C) 2003 Atsushi Enomoto
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.Xml;
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using System.Xml.XPath;
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using System.Xml.Xsl;
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namespace Mono.Xml.Xsl.Operations {
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internal class XslForEach : XslCompiledElement {
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XPathExpression select;
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XslOperation children;
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XslSortEvaluator sortEvaluator;
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public XslForEach (Compiler c) : base (c) {}
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protected override void Compile (Compiler c)
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{
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if (c.Debugger != null)
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c.Debugger.DebugCompile (c.Input);
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c.CheckExtraAttributes ("for-each", "select");
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c.AssertAttribute ("select");
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select = c.CompileExpression (c.GetAttribute ("select"));
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ArrayList sorterList = null;
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if (c.Input.MoveToFirstChild ()) {
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bool alldone = true;
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do {
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if (c.Input.NodeType == XPathNodeType.Text)
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{ alldone = false; break; }
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if (c.Input.NodeType != XPathNodeType.Element)
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continue;
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if (c.Input.NamespaceURI != Compiler.XsltNamespace)
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{ alldone = false; break; }
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if (c.Input.LocalName != "sort")
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{ alldone = false; break; }
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//c.AddSort (select, new Sort (c));
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if (sorterList == null)
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sorterList = new ArrayList ();
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sorterList.Add (new Sort (c));
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} while (c.Input.MoveToNext ());
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if (!alldone)
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children = c.CompileTemplateContent ();
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c.Input.MoveToParent ();
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}
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if (sorterList != null)
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sortEvaluator = new XslSortEvaluator (select,
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(Sort []) sorterList.ToArray (typeof (Sort)));
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}
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public override void Evaluate (XslTransformProcessor p)
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{
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if (p.Debugger != null)
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p.Debugger.DebugExecute (p, this.DebugInput);
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// This intelligent optimization causes poor compatibility bug shown in bug #457065
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// if (children == null)
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// return;
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XPathNodeIterator iter = sortEvaluator != null ?
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sortEvaluator.SortedSelect (p) :
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p.Select (select);
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while (p.NodesetMoveNext (iter)) {
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p.PushNodeset (iter);
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p.PushForEachContext ();
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children.Evaluate (p);
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p.PopForEachContext();
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p.PopNodeset ();
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}
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}
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}
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}
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