Converts XResources files containing terminal colours to Konsole colorscheme files. Does not support transparency.

XResourcesToKonsole.rb

#!/usr/bin/ruby

DEFAULT_BACKGROUND = 0x1C1C1C;
DEFAULT_FOREGROUND = 0xDCDCDC;

def main
    colours = []
    hasBackground = false
    hasForeground = false

    if ARGV.length < 2 || ARGV.length > 3
        $stderr.puts "Usage: XResourcesToKonsole <XResources file> <Konsole colour scheme name> [Konsole colour scheme file]"
        exit
    end

    inFile = File.new(ARGV[0], "r")
    if ARGV.length == 3
        outFileName = ARGV[2]
    else
        outFileName = ENV["HOME"] + "/.kde4/share/apps/konsole/" + ARGV[1] + ".colorscheme"
    end

    outFile = File.new(outFileName, "w")
    inFile.each do |line|
        next if line.start_with?("!")

        if line.start_with?("*color")
            if line[7] == ":"
                numString = line[6]
            else
                numString = line[6..7]
            end
            colourIndex = Integer(numString)
            value = line.split(":")[1..-1].join.strip
            colours[colourIndex] = toColour(value)

        elsif line.start_with?("*background")
            hasBackground = true
            value = line.split(":")[1..-1].join.strip
            background = toColour(value)

        elsif line.start_with?("*foreground")
            hasForeground = true
            value = line.split(":")[1..-1].join.strip
            foreground = toColour(value)
        end
    end
    inFile.close

    if !hasForeground
        foreground = DEFAULT_FOREGROUND
    end
    if !hasBackground
        background = DEFAULT_BACKGROUND
    end
    foregroundIntense = foreground
    backgroundIntense = background

    writeColour(outFile, "Background", background)
    writeColour(outFile, "BackgroundIntense", background)
    writeColour(outFile, "Foreground", foreground)
    writeColour(outFile, "ForegroundIntense", foreground)

    for i in 0..7 do
        writeColour(outFile, "Color" + i.to_s, colours[i])
        writeColour(outFile, "Color" + i.to_s + "Intense", colours[i + 8])
    end

    outFile.syswrite("[General]\nDescription=#{ARGV[1]}\n")

    outFile.close
end

def writeColour(file, colourName, value)
    file.syswrite("[" + colourName + "]\n" + toColourString(value) + "\n\n")
end

def toColourString(colour)
    return "Color=" + ((colour >> 16) & 0xFF).to_s + "," + ((colour >> 8) & 0xFF).to_s + "," + (colour & 0xFF).to_s
end

def toColour(string)
    if string.start_with?("#")
        return Integer(string[1..-1], 16)
    elsif string.start_with?("rgb")
        colourPart = value.split(":")[1]
        rgb = colourPart.split("/")
        result = []
        i = 0
        rgb.each do |rgbPart|
            result[i] = Integer(rgbPart, 16) % 256
            i += 1
        end
        return (result[0] << 16) | (result[1] << 8) | result[2]
    else
        $stderr.puts "Unsupported colour format: " + string
        return 0
    end
end

main