C# Ini File Loader for Unity3d

IniLoader.cs

using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text;
using UnityEngine;

public class IniLoader {
    public string data;
    public int position;
    public void load(string path) {
       if ( ! File.Exists(path) )
           throw new System.ArgumentException("path:" + path + " does not exist");
       data = File.ReadAllText(path,Encoding.UTF8);
    }
    public string get_key(string kname) {
        position = 0;
        string ckey = "";
        while ( position < data.Length ) {
            ckey = get_next_key();
            if ( ckey == "" || ckey == kname ) 
                break;
        }
        if ( ckey == "" )
            throw new System.ArgumentException("key: " + kname + " could not be found");
        Debug.Log("Found [" + ckey + "]");
        string cvalue = get_next_value();
        return cvalue;
    }
    public string get_next_value() {
        string buffer = "";
        while ( position < data.Length ) {
            if ( data[position] == '\\') {
                position = position + 2;
                continue;
            }
            if ( data[position] == ';' ) {
                position--;
                break;
            }
            buffer = buffer + data[position];
            position++;
        }
        return buffer.Trim();
    }
    public string get_next_key() {
        advance_to_next_semicolon();
        string buffer = "";
        bool found = false;
        while ( position < data.Length ) {
            if ( data[position] == '=' ) {
                found = true;
                position++;
                break;
            }
            buffer = buffer + data[position];
            position++;
        }
        if ( found == false )
            return "";
        return buffer.Trim();
    }
    public void advance_to_next_semicolon() {
        if ( position == 0 )
            return; // we are at the very start
        while ( position < data.Length ) {
            if ( data[position] == '\\') {
                position = position + 2;
                continue;
            }
            if ( data[position] == ';' ) {
                position++;
                return;
            }
            position++;
        }
    }

}

This obviously expects that you will be fastidious with your ini files as it has no error or optimization handling. It's dead simple.