ColorCoder.cs

using UnityEngine;
using System.Collections.Generic;

public class ColorCoder
{
    //Color schemes:::


    public static Color Color_keyword = new Color(88 / 255f, 156 / 255f, 214 / 255f);
    public static Color Color_object = new Color(80 / 255f, 200 / 255f, 175 / 255f);
    public static Color Color_comment = new Color(88 / 255f, 166 / 255f, 77 / 255f);
    public static Color Color_string = new Color(210 / 255f, 150 / 255f, 100 / 255f);
    public static Color Color_highlight = new Color(1, 0, 0);
    
    public static string[] keyword_list = { "boolean", "char", "class", "const", "double", "else", "final", "float", "for", "if", "int", "new", "private", "public", "return", "static", "this", "void", "while" };
    public static string[] object_list = { "PLACEHOLDER_FOR_CLASS_NAME", "Color", "Position", "String", "System"};

    public static string colorize(string line)
    {
        List<int> indexes;
        //STRINGS
        line = colorizeStrings(line);
        //KEYWORDS
        for (int i = 0; i < keyword_list.Length; i++)
        {
            indexes = Parser.findWordLocations(line, keyword_list[i]);
            line = colorizeWords(line, keyword_list[i], indexes, Color_keyword);
        }
        //OBJECTS
        for (int i = 0; i < object_list.Length; i++)
        {
            indexes = Parser.findWordLocations(line, object_list[i]);
            line = colorizeWords(line, object_list[i], indexes, Color_object);
        }

        return line;
    }

    public static string colorizeStrings(string line)
    {
        if (!line.Contains("\""))
        {
            return line;
        }
        else
        {
            string output = "";
            bool open_string = false;
            for (int i = 0; i < line.Length; i++)
            {
                if (line[i] == '\"')
                {
                    if (!open_string)
                    {
                        output += "<color=#" + getStringColor() + ">";
                    }
                    else
                    {
                        output += "\""+ "</color>";
                        i++;
                    }
                    open_string = !open_string;
                }
                output += line[i];
            }
            return output;
        }
    }

    public static string colorizeWords(string line, string word, List<int> indexes, Color color_in)
    {
        if (indexes.Count == 0)
        {
            return line;
        }
        else
        {
            string output = "";
            int shifter = 0;
            for (int i = 0; i < indexes.Count; i++)
            {
                output += line.Substring(shifter, indexes[i]) + "<color=#" + RGBToHex(color_in) + ">" + word + "</color>" + line.Substring(indexes[i] + word.Length);

                shifter = indexes[i];
            }
            return output;
        }
    }

    public static string highlight(string line)
    {
        return "<mark=#" + ColorCoder.getHighlightColor() + "55>" + line + "</mark>";
    }
    public static string comment(string line)
    {
        return line.Substring(0, line.IndexOf("//")) + "<color=#" + ColorCoder.getCommentColor() + ">" + line.Substring(line.IndexOf("//")) + "</color>";
    }


    



    public static string getKeywordColor()
    {
        return RGBToHex(Color_keyword);
    }
    public static string getCommentColor()
    {
        return RGBToHex(Color_comment);
    }
    public static string getHighlightColor()
    {
        return RGBToHex(Color_highlight);
    }
    public static string getColorObject()
    {
        return RGBToHex(Color_object);
    }
    public static string getStringColor()
    {
        return RGBToHex(Color_string);
    }
    /*  Code converted from Danny Lawrence's JavaScript implementation
        http://wiki.unity3d.com/index.php?title=HexConverter        */
    public static string RGBToHex(Color color_in)
    {
        float red = color_in.r * 255f;
        float green = color_in.g * 255f;
        float blue = color_in.b * 255f;

        string a = GetHex(Mathf.Floor(red / 16));
        string b = GetHex(Mathf.Round(red % 16));
        string c = GetHex(Mathf.Floor(green / 16));
        string d = GetHex(Mathf.Round(green % 16));
        string e = GetHex(Mathf.Floor(blue / 16));
        string f = GetHex(Mathf.Round(blue % 16));

        string z = a + b + c + d + e + f;

        return z;
    }
    public static string GetHex(float value)
    {
        string hex_values = "0123456789ABCDEF";
        return hex_values[(int)value] + "";
    }


}