BizHawk.Emulation.DiscSystem/M3U_file.cs

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+using System;
+using System.Text;
+using System.IO;
+using System.Globalization;
+using System.Collections.Generic;
+
+namespace BizHawk.Emulation.DiscSystem
+{
+	public class M3U_File
+	{
+		public static M3U_File Read(StreamReader sr)
+		{
+			M3U_File ret = new M3U_File();
+			if (!ret.Parse(sr))
+				return null;
+			else return ret;
+		}
+
+		bool Parse(StreamReader sr)
+		{
+			bool ext = false;
+			int runtime = -1;
+			string title = null;
+			for (; ; )
+			{
+				string line = sr.ReadLine();
+				if (line == null)
+					break;
+				if (line.StartsWith("#"))
+				{
+					if (line == "#EXTM3U")
+					{
+						ext = true;
+						continue;
+					}
+					if (line.StartsWith("#EXTINF:"))
+					{
+						//TODO - maybe we shouldnt be so harsh. should probably add parse options.
+						if (!ext) continue;
+
+						line = line.Substring(8);
+						int cidx = line.IndexOf(',');
+
+						//dont know what to do with this, but its a comment, so ignore it
+						if (cidx == -1)
+							continue;
+
+						runtime = int.Parse(line.Substring(0, cidx));
+						title = line.Substring(cidx);
+					}
+
+					//just a comment. ignore it
+					continue;
+				}
+				else
+				{
+					var e = new Entry {
+						Path = line,
+						Runtime = runtime,
+						Title = title
+					};
+					Entries.Add(e);
+					runtime = -1;
+					title = null;
+				}
+			} //parse loop
+
+			return true;
+		} //Parse()
+
+		public List<Entry> Entries = new List<Entry>();
+
+		public void Rebase(string basepath)
+		{
+			foreach (var e in Entries)
+			{
+				//dont change rooted paths
+				if (Path.IsPathRooted(e.Path)) continue;
+				//adjust relative paths
+				e.Path = Path.Combine(basepath, e.Path);
+			}
+		}
+
+		public class Entry
+		{
+			public string Path;
+
+			/// <summary>
+			/// if the title is null, it isn't set
+			/// </summary>
+			public string Title;
+
+			/// <summary>
+			/// if the runtime is -1, it isn't set
+			/// </summary>
+			public int Runtime;
+		}
+
+	} //class M3U_File
+}
+
+