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//------------------------------------------------------------------------------
// <copyright file="ValueOfAction.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">Microsoft</owner>
//------------------------------------------------------------------------------
namespace System.Xml.Xsl.XsltOld {
using Res = System.Xml.Utils.Res;
using System;
using System.Diagnostics;
using System.Xml;
using System.Xml.XPath;
internal class ValueOfAction : CompiledAction {
private const int ResultStored = 2;
private int selectKey = Compiler.InvalidQueryKey;
private bool disableOutputEscaping;
private static Action s_BuiltInRule = new BuiltInRuleTextAction();
internal static Action BuiltInRule() {
Debug.Assert(s_BuiltInRule != null);
return s_BuiltInRule;
}
internal override void Compile(Compiler compiler) {
CompileAttributes(compiler);
CheckRequiredAttribute(compiler, selectKey != Compiler.InvalidQueryKey, "select");
CheckEmpty(compiler);
}
internal override bool CompileAttribute(Compiler compiler) {
string name = compiler.Input.LocalName;
string value = compiler.Input.Value;
if (Ref.Equal(name, compiler.Atoms.Select)) {
this.selectKey = compiler.AddQuery(value);
}
else if (Ref.Equal(name, compiler.Atoms.DisableOutputEscaping)) {
this.disableOutputEscaping = compiler.GetYesNo(value);
}
else {
return false;
}
return true;
}
internal override void Execute(Processor processor, ActionFrame frame) {
Debug.Assert(processor != null && frame != null);
switch (frame.State) {
case Initialized:
Debug.Assert(frame != null);
Debug.Assert(frame.NodeSet != null);
string value = processor.ValueOf(frame, this.selectKey);
if (processor.TextEvent(value, disableOutputEscaping)) {
frame.Finished();
}
else {
frame.StoredOutput = value;
frame.State = ResultStored;
}
break;
case ResultStored:
Debug.Assert(frame.StoredOutput != null);
processor.TextEvent(frame.StoredOutput);
frame.Finished();
break;
default:
Debug.Fail("Invalid ValueOfAction execution state");
break;
}
}
}
internal class BuiltInRuleTextAction : Action {
private const int ResultStored = 2;
internal override void Execute(Processor processor, ActionFrame frame) {
Debug.Assert(processor != null && frame != null);
switch (frame.State) {
case Initialized:
Debug.Assert(frame != null);
Debug.Assert(frame.NodeSet != null);
string value = processor.ValueOf(frame.NodeSet.Current);
if (processor.TextEvent(value, /*disableOutputEscaping:*/false)) {
frame.Finished();
}
else {
frame.StoredOutput = value;
frame.State = ResultStored;
}
break;
case ResultStored:
Debug.Assert(frame.StoredOutput != null);
processor.TextEvent(frame.StoredOutput);
frame.Finished();
break;
default:
Debug.Fail("Invalid BuiltInRuleTextAction execution state");
break;
}
}
}
}
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