Module: Hilighter::Codes

Included in:
String
Defined in:
lib/hilighter/codes.rb

Instance Method Summary collapse

Instance Method Details

#add_methods ⇒ Object 



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# File 'lib/hilighter/codes.rb', line 3

def add_methods
    color_regex = /(^|\n)(\e\[([0-9;]+m|K))+(\n|$)/

    colors.each do |key, val|
        if (key.start_with?("on_"))
            on_default = colors["on_default"]
            define_method key do
                return self.plain if (Hilighter.disable?)

                return [
                    "\e[#{val}m",
                    self.plain_bg.gsub(
                        /\n/,
                        "\e[#{on_default}m\n\e[#{val}m"
                    ),
                    "\e[#{on_default}m"
                ].join.gsub(color_regex, "\\1\\4")
            end
        else
            default = colors["default"]
            define_method key do
                return self.plain if (Hilighter.disable?)

                return [
                    "\e[#{val}m",
                    self.plain_fg.gsub(
                        /\n/,
                        "\e[#{default}m\n\e[#{val}m"
                    ),
                    "\e[#{default}m"
                ].join.gsub(color_regex, "\\1\\4")
            end
        end
    end

    modes.each do |key, val|
        rm = [
            modes[key],
            modes["no_#{key}".gsub(/^no_no_/, "")]
        ].delete_if(&:nil?).uniq.join("|")

        off = "no_#{key}"
        if modes.has_key?(off)
            off = "\e[#{modes[off]}m"
        else
            off = ""
        end

        define_method key do
            return self.plain if (Hilighter.disable?)
            self.gsub!(/\e\[(#{rm})m/, "")
            return "\e[#{val}m#{self}#{off}".gsub(
                color_regex,
                "\\1\\4"
            )
        end
    end
end

#colors ⇒ Object 



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# File 'lib/hilighter/codes.rb', line 62

def colors
    @valid_colors ||= {
        "black" => 30,
        "red" => 31,
        "green" => 32,
        "yellow" => 33,
        "blue" => 34,
        "magenta" => 35,
        "cyan" => 36,
        "white" => 37,
        "light_black" => 90,
        "light_red" => 91,
        "light_green" => 92,
        "light_yellow" => 93,
        "light_blue" => 94,
        "light_magenta" => 95,
        "light_cyan" => 96,
        "light_white" => 97,

        "on_black" => 40,
        "on_red" => 41,
        "on_green" => 42,
        "on_yellow" => 43,
        "on_blue" => 44,
        "on_magenta" => 45,
        "on_cyan" => 46,
        "on_white" => 47,
        "on_light_black" => 100,
        "on_light_red" => 101,
        "on_light_green" => 102,
        "on_light_yellow" => 103,
        "on_light_blue" => 104,
        "on_light_magenta" => 105,
        "on_light_cyan" => 106,
        "on_light_white" => 107,

        "default" => 39,
        "on_default" => 49
    }
    if (@valid_colors.length < 256)
        256.times.each do |i|
            clr = i.to_s.rjust(3, "0")
            @valid_colors["color_#{clr}"] = "38;5;#{clr}"
            @valid_colors["on_color_#{clr}"] = "48;5;#{clr}"
        end
    end
    return @valid_colors
end

#modes ⇒ Object 



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# File 'lib/hilighter/codes.rb', line 111

def modes
    return {
        "reset" => 0,
        "normal" => 0,
        "bold" => 1,
        "dim" => 2,
        "faint" => 2,
        "italic" => 3,
        "underline" => 4,
        "blink" => 5,
        "blink_slow" => 5,
        "blink_rapid" => 6,
        "inverse" => 7,
        "negative" => 7,
        "swap" => 7,
        "hide" => 8,
        "conceal" => 8,
        "crossed_out" => 9,
        "strikethrough" => 9,
        "fraktur" => 20,

        "no_bold" => 21,
        "no_dim" => 22,
        "no_faint" => 22,
        "no_italic" => 23,
        "no_fraktur" => 23,
        "no_underline" => 24,
        "no_blink" => 25,
        "no_blink_slow" => 25,
        "no_blink_rapid" => 26,
        "no_inverse" => 27,
        "no_negative" => 27,
        "no_swap" => 27,
        "no_hide" => 28,
        "no_conceal" => 28,
        "no_crossed_out" => 29,
        "no_strikethrough" => 29
    }
end