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import sys
import argparse
TYPES = ['hex', 'rgb', 'hsl', 'cmyk']
HEX_LETTERS = ['a', 'b', 'c', 'd', 'e', 'f']
def main():
parser = argparse.ArgumentParser()
parser.add_argument('--hex', action='store_true', help='convert from hex (accepted formats: [ffffff] or ["#ffffff"])')
parser.add_argument('--rgb', action='store_true', help='convert from RGB (accepted formats: [R G B], [\"rgb(R, G, B)\"], and [\"rgb(R,G,B)\"])')
parser.add_argument('color', nargs='*', help='accepts a color in Hex, RGB, CYMK, or HSL and performs format conversions')
args = parser.parse_args()
print(args, '\n')
color = args.color
if len(color) == 0 :
print('ERROR: Must enter color code')
return
# HANDLE HEX INPUT
if args.hex :
color = color[0].strip('#')
if not validateHex(color) :
return
convertFromHex(color)
# HANDLE RGB INPUT
if args.rgb :
# cleanse any non-numerical stuff
if len(color) == 1 :
color = color[0].strip('rgb(').strip(')').split(',')
if not validateRGB(color) :
return
for i in range(len(color)) :
color[i] = int(color[i])
convertFromRGB(color)
##
# HEX CONVERSION SECTION
##
# Takes in valid RGB code and converts it to the other formats
def convertFromHex(hexCode) :
convertToRGB('hex', hexCode)
# convertToCMYK('hex', code)
# convertToHSL('hex', code)
def convertToHex(codeFormat, code) :
hexValue = '#'
if codeFormat == 'rgb' :
for rgbValue in code :
hexValue += hex(int(rgbValue / 16))
hexValue += hex(int(rgbValue % 16))
print('HEX: ', hexValue)
##
# RGB CONVERSION SECTION
##
# Takes in valid RGB code and converts it to the other formats
def convertFromRGB(code) :
convertToHex('rgb', code)
# convertToCMYK('rgb', code)
# convertToHSL('rgb', code)
def convertToRGB(codeFormat, code) :
rgbValue = ''
if codeFormat == 'hex' :
tempSum = 0
i = 0
while i < 6 :
tempSum += int(code[i], 16) * 16
tempSum += int(code[i+1], 16)
rgbValue += str(tempSum) + ' '
i = i + 2
tempSum = 0
print('RGB: ', rgbValue)
##
# INPUT VALIDATION SECTION
##
# Takes in a string. Returns True if valid Hex color code.
def validateHex(value) :
if len(value) != 6 :
print('ERROR: Hex value should have 6 digits')
return False
for i in range(len(value)):
if value[i-1].isnumeric() :
continue
elif HEX_LETTERS.count(value[i-1]) != 0 :
continue
else :
print('ERROR: Invalid character in hex code')
return False
return True
# Takes in a list of numerical strings. Returns True if valid RGB values.
def validateRGB(values) :
if len(values) != 3 :
print('ERROR: Improper number of values (should be 3)')
return False
for value in values :
if not value.strip().isnumeric() :
print('ERROR: Improper format for RGB value(s)')
return False
value = int(value)
if (value < 0) or (value > 255) :
print('ERROR: Each RBG value must be between 0-255')
return False
return True
# Takes in a decimal number and converts it to hexadecimal
def hex(number) :
number = int(number)
if number > 16 :
print("ERROR: Decimal to Hexidecimal conversion failed")
return "ERROR: Decimal to Hexidecimal conversion failed"
if number < 10 :
return str(number)
return HEX_LETTERS[number % 10]
if __name__ == '__main__' :
main()
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