BaseConverter.py

#!/usr/bin/env python
import sys
import os

class CmdColors:
    ATTR_OFF = '\033[0m'
    DEFAULT = '\033[99m'
    BOLD = '\033[1m'
    UNDERLINE = '\033[4m'
    # Colors
    RED = '\033[91m'
    GREEN = '\033[92m'
    YELLOW = '\033[93m'
    BLUE = '\033[94m'
    PINK = '\033[95m'
    CYAN = '\033[96m'
    WHITE = '\033[97m'
    # Light colors
    LIGHT_RED = '\033[31m'
    LIGHT_GREEN = '\033[32m'
    BROWN = '\033[33m'
    LIGHT_BLUE = '\033[34m'
    PALE_CYAN = '\033[36m'
    GREY = '\033[37m'
    # Highlights
    HIGHLIGHT_WHITE_ON_BLACK = '\033[7m'
    HIGHLIGHT_RED = '\033[101m'
    HIGHLIGHT_GREEN = '\033[102m'
    HIGHLIGHT_YELLOW = '\033[103m'
    HIGHLIGHT_BLUE = '\033[104m'
    HIGHLIGHT_PINK = '\033[105m'
    HIGHLIGHT_CYAN = '\033[106m'
    HIGHLIGHT_WHITE = '\033[107m'

def parseInput(val):
	if val.startswith('q'):
		print "Exiting"
		sys.exit()

	numb = parseHex(val)
	if numb is not None:
		print CmdColors.WHITE + "Hexadecimal input = %s" % val
		return numb

	numb = parseBin(val)
	if numb is not None:
		print CmdColors.YELLOW + "Binary input = %s" % val
		return numb

	numb = parseOct(val)
	if numb is not None:
		print CmdColors.GREEN + "Octal input = %s" % val
		return numb

	print CmdColors.CYAN + "Decimal input = %s" % val
	return parseDec(val)


def parseHex(val):
	if val.startswith("0x"):
		return int(val, 16)
	if val.startswith("#") or val.startswith("h"):
		return int(val[1:], 16)
	if val.endswith("h"):
		return int(val[:-1], 16)
	if val.endswith("hex"):
		return int(val[:-3], 16)
	return None

def parseOct(val):
	if val.startswith("0o"):
		return int(val, 8)
	if val.startswith("0") or val.startswith("o"):
		if val.isdigit() and ('8' not in val) and ('9' not in val):
			return int(val[1:], 8)
	if val.endswith("o"):
		return int(val[:-1], 8)
	if val.endswith("oct"):
		return int(val[:-3], 8)
	return None

def parseBin(val):
	if val.startswith("0b"):
		return int(val, 2)
	if val.startswith("b"):
		return int(val[1:], 2)
	if val.endswith("b"):
		return int(val[:-1], 2)
	if val.endswith("bin"):
		return int(val[:-3], 2)

	if len(val) >= 4:
		x = set(val)
		if len(x) == 2 and ('1' in x) and ('0' in x):
			return int(val, 2)
	return None


def parseDec(val):
	if val.startswith("0d"):
		val = val[2:]
	if val.startswith("d"):
		val = val[1:]
	if val.endswith("d"):
		val = val[:-1]
	if val.endswith("dec"):
		val = val[:-3]
	return int(val)

def addCharEveryN(s, n, c):
	return c.join(s[i:i+n] for i in range(0, len(s), n))

while True:
	val = raw_input(CmdColors.ATTR_OFF + ">> ")
	val = val.strip().lower().replace(" ", "").replace("\xc2", "").replace("\xa0", "")
	os.system('clear')
	try:
		out = parseInput(val)
		print " "
		print CmdColors.CYAN + "Dec = %d" % out
		print CmdColors.WHITE + "Hex = %s" % hex(out).upper().replace("0X", "0x")
		print CmdColors.YELLOW + "Bin = %s" % bin(out)
		print CmdColors.YELLOW + "Bin = %s" % addCharEveryN('{0:08b}'.format(out), 4, " ")
		print CmdColors.GREEN + "Oct = %s" % oct(out)
		print CmdColors.ATTR_OFF + " "
		print " "
	except ValueError:
		print CmdColors.ATTR_OFF + " "
		print "Invalid input"