quickdiff

#!/usr/bin/env python
# vi: syntax=python
# visualize the diff between two bits of text:
#   paste in first bit of text
#   hit Control-D
#   paste in second bit of text
#   see result in vimdiff

# Dependencies:
# needs my waterworks library:
#   https://github.com/dmcc/waterworks

# Author: David McClosky
# Homepage: http://zorglish.org
# Code: http://github.com/dmcc

from vimdiff import vimdiff
import optparse
import sys

parser = optparse.OptionParser()
parser.add_option('-w', '--split-by-whitespace', action='store_true',
                  help='Convert all whitespace to newlines')
parser.add_option('-s', '--split-by-sentences', action='store_true',
                  help='Convert sentence breaks (not very general: ". ") to '
                       'newlines')
parser.add_option('-d', '--split-by-delimiter',
                  help='Split into lines by a delimter.', metavar='DELIMITER')
opts, args = parser.parse_args()

# TODO could be generalized to K bits of text

def split(text):
    if opts.split_by_whitespace:
        text = '\n'.join(text.split())
    elif opts.split_by_sentences:
        text = '\n'.join(text.split('. '))
    elif opts.split_by_delimiter:
        text = '\n'.join(text.split(opts.split_by_delimiter))
    return text

text1 = split(sys.stdin.read().strip())
print("Read text 1 (%s chars)" % len(text1))
text2 = split(sys.stdin.read().strip())
print("Read text 2 (%s chars)" % len(text2))

vimdiff(text1, text2)