IniFile.LoadFile C# (CSharp) Method

    public static Dictionary<string, Hashtable> LoadFile(string filename)
    {
        string path = BasePath + filename;

        if(!File.Exists(path))
        {
            Debug.LogError("File not found: " + path);
            return null;
        }

        var output = new Dictionary<string, Hashtable>();
        var streamReader = new StreamReader(path);

        var sectionHeader = new Regex("^\\[(.+)\\]");
        var pair = new Regex("^(.+)=(.+)");
        var comment = new Regex("^;.+?");

        string sectionName = "";
        Hashtable sectionTable = null;

        while(!streamReader.EndOfStream)
        {
            var line = streamReader.ReadLine();

            if(comment.IsMatch(line))
            {
                continue;
            }
            else if(sectionHeader.IsMatch(line))
            {
                sectionName = sectionHeader.Match(line).Groups[1].Value;
                sectionTable = new Hashtable();
                output.Add(sectionName, sectionTable);
            }
            else if(pair.IsMatch(line))
            {
                var match = pair.Match(line);

                var key = match.Groups[1].Value;

                string  valueString = match.Groups[2].Value;
                int valueInt;
                float valueFloat;
                bool valueBool;

                if(int.TryParse(valueString, out valueInt))
                {
                    sectionTable.Add(key, valueInt);
                }
                else if(float.TryParse(valueString, out valueFloat))
                {
                    sectionTable.Add(key, valueFloat);
                }
                else if(bool.TryParse(valueString, out valueBool))
                {
                    sectionTable.Add(key, valueBool);
                }
                else
                {
                    sectionTable.Add(key, valueString);
                }
            }

            // silently ignore everything else
        }

        streamReader.Close();

        return output;
    }