#!/usr/local/bin/python3
#
# Paul Evans (pevans@sandiego.edu)
# 24 November 2018
#  8 December 2018
#  9 December 2018
# 10 December 2018
#
import Levenshtein
import re
#
def main():
    list_Sg = listify(re.split('\W', open('./Sg.txt', 'r').read()))
    list_edF = listify(re.split('\W', open('./edF.txt', 'r').read()))
    dedup(list_Sg, list_edF)
    #
    for Sg_word in list_Sg:
        for edF_word in list_edF:
            if (len(Sg_word) == len(edF_word)):
                if (Levenshtein.hamming(Sg_word, edF_word) == 1):
                    print(Sg_word, edF_word)
#
def listify(words):
    list = []
    for word in words:
        if word:
            word = word.lower()
            if word not in list: # add it
                list.append(word)
        else:
            pass
    list.sort()
    return(list)
#
def dedup(list_A, list_B):
    dups = []
    for word in list_A:
        if word in list_B:
            dups.append(word)
        else:
            pass
    for dup in dups:
        list_A.remove(dup)
        list_B.remove(dup)
#
if __name__ == '__main__':
    main()