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//
// MSBuildEvaluationContext.cs
//
// Author:
// Lluis Sanchez Gual <lluis@xamarin.com>
//
// Copyright (c) 2014 Xamarin, Inc (http://www.xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Linq;
using System.IO;
using System.Collections.Generic;
using System.Xml;
using System.Text;
using Microsoft.Build.BuildEngine;
namespace MonoDevelop.Projects.Formats.MSBuild
{
public class MSBuildEvaluationContext: IExpressionContext
{
Dictionary<string,string> properties = new Dictionary<string, string> ();
bool allResolved;
MSBuildProject project;
public MSBuildEvaluationContext ()
{
}
internal void InitEvaluation (MSBuildProject project)
{
this.project = project;
SetPropertyValue ("MSBuildThisFile", Path.GetFileName (project.FileName));
SetPropertyValue ("MSBuildThisFileName", Path.GetFileNameWithoutExtension (project.FileName));
SetPropertyValue ("MSBuildThisFileDirectory", Path.GetDirectoryName (project.FileName) + Path.DirectorySeparatorChar);
SetPropertyValue ("MSBuildThisFileExtension", Path.GetExtension (project.FileName));
SetPropertyValue ("MSBuildThisFileFullPath", Path.GetFullPath (project.FileName));
SetPropertyValue ("VisualStudioReferenceAssemblyVersion", project.ToolsVersion + ".0.0");
}
public string GetPropertyValue (string name)
{
string val;
if (properties.TryGetValue (name, out val))
return val;
else
return Environment.GetEnvironmentVariable (name);
}
public void SetPropertyValue (string name, string value)
{
properties [name] = value;
}
public void ClearPropertyValue (string name)
{
properties.Remove (name);
}
public bool Evaluate (XmlElement source, out XmlElement result)
{
allResolved = true;
result = (XmlElement) EvaluateNode (source);
return allResolved;
}
XmlNode EvaluateNode (XmlNode source)
{
var elemSource = source as XmlElement;
if (elemSource != null) {
var elem = source.OwnerDocument.CreateElement (elemSource.Prefix, elemSource.LocalName, elemSource.NamespaceURI);
foreach (XmlAttribute attr in elemSource.Attributes)
elem.Attributes.Append ((XmlAttribute)EvaluateNode (attr));
foreach (XmlNode child in elemSource.ChildNodes)
elem.AppendChild (EvaluateNode (child));
return elem;
}
var attSource = source as XmlAttribute;
if (attSource != null) {
bool oldResolved = allResolved;
var att = source.OwnerDocument.CreateAttribute (attSource.Prefix, attSource.LocalName, attSource.NamespaceURI);
att.Value = Evaluate (attSource.Value);
// Condition attributes don't change the resolution status. Conditions are handled in the property and item objects
if (attSource.Name == "Condition")
allResolved = oldResolved;
return att;
}
var textSource = source as XmlText;
if (textSource != null) {
return source.OwnerDocument.CreateTextNode (Evaluate (textSource.InnerText));
}
return source.Clone ();
}
public bool Evaluate (string str, out string result)
{
allResolved = true;
result = Evaluate (str);
return allResolved;
}
string Evaluate (string str)
{
int i = str.IndexOf ("$(");
if (i == -1)
return str;
int last = 0;
StringBuilder sb = new StringBuilder ();
do {
sb.Append (str, last, i - last);
i += 2;
int j = str.IndexOf (")", i);
if (j == -1) {
allResolved = false;
return "";
}
string prop = str.Substring (i, j - i);
string val = GetPropertyValue (prop);
if (val == null) {
allResolved = false;
return "";
}
sb.Append (val);
last = j + 1;
i = str.IndexOf ("$(", last);
}
while (i != -1);
sb.Append (str, last, str.Length - last);
return sb.ToString ();
}
#region IExpressionContext implementation
public string EvaluateString (string value)
{
if (value.StartsWith ("$(") && value.EndsWith (")"))
return GetPropertyValue (value.Substring (2, value.Length - 3)) ?? value;
else
return value;
}
public string FullFileName {
get {
return project.FileName;
}
}
#endregion
}
}
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