Fate/Extra Pattern Recorder/Matcher

import os
import re

# A - Attack
# B - Break
# G - Guard
# S - Skill
# - - Wait
# ? - Unknown
# 6 commands

# Allow user to input enemy name/identifier. Check if a f exists with that name in the directory the Python f was opened from; if there is a f of that name, open it. If there isn't, create it.
# From there, allow user to add new patterns, attempt to match patterns, view all patterns, or save and quit that f.
# Show how many sequences are recorded for the selected enemy.

# When adding a pattern, show valid codes above text entry bit. '?' is not a valid code at this point. There are 6 commands in a sequence.
# Check string for validity - each character should match '(?ABGS-)'
# Confirm adding.

# When matching, allow 'Unknown' code in addition to the rest above.
# Use regex. Construct a string: '?' should become '.'

exit = False
input = "0"
inputMatch = re.compile("(A|B|G|S|-)(A|B|G|S|-)(A|B|G|S|-)(A|B|G|S|-)(A|B|G|S|-)(A|B|G|S|-)")

while True:
    print "Feldherren's Useful Fate/Extra Enemy Sequence Matching Tool\n"
    print "1. Enter enemy name"
    print "2. Quit"
    input = raw_input("> ")

    if input == "1":
        input = "0"
        print ""
        filename = raw_input("Enemy name: ")
        if os.path.exists(os.path.realpath(__file__)[:-28] + filename + ".txt"):
            print "Opening " + filename + ".txt"
            f = open(filename+'.txt', 'r+')
        else:
            print "Enemy f " + filename + ".txt not found - creating new file"
            f = open(filename+'.txt', 'a+')
            f.close()
            f = open(filename+'.txt', 'r+')

        while True:
            print "Enemy file: " + filename + ".txt\n"
            print "1. Add new sequence"
            print "2. Match sequence"
            print "3. Output all sequences"
#           print "4. Remove sequence"
            print "4. Return to main menu"
            input = raw_input("> ")
            if input == "1":
                input = "0"
                print "Enter new enemy action sequence. Valid characters:"
                print "A: Attack"
                print "B: Break"
                print "G: Guard"
                print "S: Skill"
                print "-: Wait"
                print ""
                s = raw_input("Sequence: ")
                if inputMatch.match(s) is not None:
                    # checking for duplicates
                    f = open(filename+'.txt', 'r+')
                    l = f.readline()
                    f.close
                    l = l.split(",")
                    duplicate = False
                    for sequence in l:
                        if s == sequence:
                            duplicate = True
                    if duplicate != True:
                        f = open(filename+'.txt', 'a+')
                        f.write(s + "," )
                        f.close()
                    else:
                        print "Sequence already exists."
                else:
                    print "Error: entered sequence is not valid pattern.\n"
            elif input == "2":
                input = "0"
                print "Enter enemy action sequence to match. Valid characters:"
                print "A: Attack"
                print "B: Break"
                print "G: Guard"
                print "S: Skill"
                print "-: Wait"
                print "?: Unknown"
                print ""
                input = raw_input("Sequence: ")

                matchSequence = input.replace("?", ".")
                matchSequence = re.compile(matchSequence)

                f = open(filename+'.txt', 'r+')
                l = f.readline()
                f.close
                l = l.split(",")
                for sequence in l:
                    if matchSequence.match(sequence) is not None:
                        print sequence
                    input = "0"
            elif input == "3":
                input = "0"
                print "All sequences for " + filename + ":"
                f = open(filename+'.txt', 'r+')
                l = f.readline()
                f.close
                l = l.split(",")
                for sequence in l:
                    print sequence
#           elif input == "4": # If you get curious, this was my attempt at removing
#               input = "0"
#               print "Enter enemy action sequence to remove. Valid characters:"
#               print "A: Attack"
#               print "B: Break"
#               print "G: Guard"
#               print "S: Skill"
#               print "-: Wait"
#               print ""
#               s = raw_input("Sequence: ")
#               if inputMatch.match(s) is not None:
#                   f = open(filename+'.txt', 'r+')
#                   l = f.readline()
#                   f.close
#                   l = l.split(",")
#                   if s in l:
#                       l.pop(l.index(s))
#
#                   for i in l: # here it starts petering out as I started wondering '...wait, does he really need this?' This would have made one comma-separated string from the list l again
#
#                   f = open(filename+'.txt', 'r+') # opening a file in mode 'r+' as opposed to 'a+' will simply have it write over all the contents. I basically went 'ehh' when I realised I'd have to make one string of the list for it to work.
#
#               else:
#                   print "Error: entered sequence is not valid pattern.\n"

            elif input == "4":
                input = "0"
                break

    elif input == "2":
        input = "0"
        break

#print ""