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Initial project's source code check-in.

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ptsurbeleu 2011-07-13 16:07:32 -07:00
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WebsitePanel/Sources/WebsitePanel.Templates/AST/CallTemplateStatement.cs Normal file
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// Copyright (c) 2011, Outercurve Foundation.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// - Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// - Neither the name of the Outercurve Foundation nor the names of its
// contributors may be used to endorse or promote products derived from this
// software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
namespace WebsitePanel.Templates.AST
{
internal class CallTemplateStatement : Statement
{
public string templateName;
public Dictionary<string, Expression> parameters = new Dictionary<string, Expression>();
List<Statement> statements = new List<Statement>();
public CallTemplateStatement(int line, int column)
: base(line, column)
{
}
public string TemplateName
{
get { return templateName; }
set { templateName = value; }
}
public Dictionary<string, Expression> Parameters
{
get { return parameters; }
}
public List<Statement> Statements
{
get { return statements; }
}
public override void Eval(TemplateContext context, System.IO.StringWriter writer)
{
// locate template
if (!context.Templates.ContainsKey(templateName))
throw new ParserException(String.Format("Custom template \"{0}\" is not defined", templateName), Line, Column);
TemplateStatement tmp = context.Templates[templateName];
// create template-specific context
TemplateContext tmpContext = new TemplateContext();
tmpContext.ParentContext = context;
tmpContext.Templates = context.Templates;
// evaluate inner statements
StringWriter innerWriter = new StringWriter();
foreach (Statement stm in Statements)
stm.Eval(context, innerWriter);
tmpContext.Variables["innerText"] = innerWriter.ToString();
// set context variables
foreach (string name in parameters.Keys)
tmpContext.Variables[name] = parameters[name].Eval(context);
// evaluate template statements
foreach (Statement stm in tmp.Statements)
stm.Eval(tmpContext, writer);
}
public override string ToString()
{
StringBuilder sb = new StringBuilder();
sb.Append("{").Append(templateName);
foreach (string name in parameters.Keys)
sb.Append(" ").Append(name).Append("=\"").Append(parameters[name].ToString()).Append("\"");
sb.Append(" /}");
return sb.ToString();
}
}
}