"""A program that deciphers the transcripts from the Loebner Prize Contest 2006.
This program is free software.
This version is slightly modified to deal with a quirky transcript; you should probably use the other one."""
f = open( raw_input("Please type the name of the file to translate: "),"r")
text_raw = f.read()
f.close()
lines = text_raw.split("\n")
transcript = "Loebner Prize 20006 Sept 17, 2006\nUniversity College London\n"
transcript += "Translated from "+str(len(lines))+" lines of machinespeak by Kris Schnee.\nThis transcript is unofficial and is in the public domain.\n"
transcript += "'~' indicates a backspace.\nTiming information is omitted, so this text may differ from the official transcripts (which are effectively human-unreadable).\n"
transcript += "--- Transcript follows: ---\n"

ll, lr, rl, rr = "","","",""
SPEAKERS = {"local left":ll,"local right":lr,"remote left":rl,"remote right":rr}
for line in lines[3:]:
    if line[:16] == "starting session":
        transcript += "\n\n--- "+line.title()+" --- \n"
    elif not line:
        pass

    """This bit of code was added to handle an odd formatting difference between
    the "John" transcript and the others; in that one a line representing a
    blank character (not a space) would appear after each period."""
    elif actual_key_pressed == ".":
        actual_key_pressed = ""
        pass
    
    ## Handle this line.
    else:
        words = line.split()[-3:]
        actual_key_pressed = words[-1]
        s = words[-3]+" "+words[-2]
        speaker = SPEAKERS.get( s )
        if speaker == None:
            raise "Error: Can't figure out who spoke: \""+s+"\"?"
        if actual_key_pressed == "CR":
            transcript += s.upper()+": "+SPEAKERS[s] + "\n"
            SPEAKERS[s] = ""
        elif actual_key_pressed == "space":
            SPEAKERS[s] += " "
        elif actual_key_pressed == "BackSpace":
            SPEAKERS[s] += "~"
        else:
            SPEAKERS[s] += words[-1]

output = open("output.txt","w")
output.write(transcript)
output.close()