hilighter.py

#!/usr/bin/env python2

import sys

data = ''
if len(sys.argv) == 2:
	data = sys.argv[1]
else:
	print "No input specified\n"
	sys.exit(0)


data = open(data).read()
chars = ['{','}']
for ch in chars:
	if ch in data:
		data = data.replace(ch,'')


def print_color(text, color):
	colors = {"red"     : '\033[1;31m%s\033[1;m',
			  "green"   : '\033[1;32m%s\033[1;m',
			  "yellow"  : '\033[1;33m%s\033[1;m',
			  "blue"    : '\033[1;34m%s\033[1;m',
			  "magenta" : '\033[1;35m%s\033[1;m',
			  "cyan"    : '\033[1;36m%s\033[1;m',
			  "white"   : '\033[1;37m%s\033[1;m',
			  "crimson" : '\033[1;38m%s\033[1;m'
			}
	return colors[color] % text

def find_differences(input_data):
	differences = []
	lines = input_data.split('\n')
	lines_array = [list(line.split()) for line in lines]
	for line_index,line in enumerate(lines_array):
		if line_index == 0:
			continue
		for token_index,token in enumerate(lines_array[line_index]):
			if lines_array[line_index - 1][token_index] != token:
				tmp = (line_index, token_index)
				differences.append(tmp)
	return differences

def print_output(input_data, differences_list, color1, color2):
	lines = input_data.split('\n')
	lines_array = [list(line.split()) for line in lines]
	
	for line_index,line in enumerate(lines_array):
		for token_index,token in enumerate(lines_array[line_index]):
			if (line_index, token_index) in differences:
				sys.stdout.write(print_color(token, color2) + ' ')
			else:
				sys.stdout.write(print_color(token, color1) + ' ')
		sys.stdout.write('\n')
	return
	
differences = find_differences(data)
print_output(data, differences, 'blue', 'yellow')

sample_input.txt

{0000 0000 0000 0000 0000 0000 0000 0000}
{0000 0000 0000 0000 0000 0000 0000 0f00}
{0000 0000 0000 0000 0000 0000 c0de 0f00}
{0000 0000 0000 0000 0000 ac1d c0de 0f00}
{0000 0000 0000 0000 face ac1d c0de 0f00}
{0000 0000 0000 d06e face ac1d c0de 0f00}
{0000 0000 0000 d06e face ac1d d06e 0f00}
{0000 0000 0000 d06e face face d06e 0f00}
{0000 0000 0000 d06e ac1d face d06e 0f00}
{0000 0000 0000 c0de ac1d face d06e 0f00}