//
// MonoMakefile.cs
//
// Author:
//   Lluis Sanchez Gual
//
// Copyright (C) 2005 Novell, Inc (http://www.novell.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.Collections;
using System.IO;
using MonoDevelop.Core;
using System.Text.RegularExpressions;
using MonoDevelop.Projects;

namespace MonoDeveloper
{
	class MonoMakefile
	{
		string content;
		string multilineMatch = @"(((?<content>.*)(?<!\\)\n)|((?<content>.*?)\\\n(\t(?<content>.*?)\\\n)*\t(?<content>.*?)(?<!\\)\n))";
		string fileName;
		
		public MonoMakefile (string file)
		{
			this.fileName = file;
			StreamReader sr = new StreamReader (file);
			content = sr.ReadToEnd ();
			sr.Close ();
		}
		
		public string FileName {
			get { return fileName; }
		}
		
		public string Content {
			get { return content; }
		}
		
		public string GetVariable (string var)
		{
			Regex varExp = new Regex(@"[.|\n]*^" + var + @"(?<sep>\s*:?=\s*)" + multilineMatch, RegexOptions.Multiline);
			return GetValue (var, varExp);
		}
		
		public string GetTarget (string var)
		{
			Regex targetExp = new Regex(@"[.|\n]*^" + var + @"(?<sep>\s*:\s*)" + multilineMatch + @"\t" + multilineMatch, RegexOptions.Multiline);
			return GetValue (var, targetExp);
		}
		
		string GetValue (string var, Regex exp)
		{
			Match match = exp.Match (content);
			if (!match.Success) return null;
			string value = "";
			foreach (Capture c in match.Groups["content"].Captures)
				value += c.Value;
			return value;
		}
	}
}