####################################
# Author  : Python for fools
# Date    : 12-08-2007
# Purpose : Language Converter.
#####################################

import sys

PFF_VERSION="0.2B"

def convToPython(txt):
    lst=txt.split('\n')
    pylst=[]
    langDic={"Begin":"", 
    "IF":"if", "Else":"else", "Do":":", "Unless":"if not", "Define":"def", "End":"",
    "Imports":"import", "As":"as", "From":"from", ":=":"=", "Class":"class", "Constructor":"__init__",
     "Destructor":"__del___", "ToString":"__repr__", "This":"self", "While":"while"
    ,"WriteLn":"print", "ReadLn":"raw_input", "Foreach":"for", "Return":"return"
    }
    s=""
    txt=txt.lower
    keys=langDic.keys()
    for st in lst:
        for key in langDic.keys():
            if key in st:
                st=st.replace(key, langDic[key])
        pylst += st +"\n"


    s=''.join(pylst)
    s=s.lstrip()
    s=s.rstrip()
    return s


if __name__=="__main__":
    def info():
        s="""
                   <--- PFF Interpreter --->
-v  =>  PFF VERSION
-e  =>  Execute Statement
Usage:  intep.py [file.pff]
"""%(PFF_VERSION)
        
        print s

    if len(sys.argv) == 1 :
        info()
    elif len(sys.argv)== 2:
        if sys.argv[1].endswith(".pff") or sys.argv[1].endswith(".py"):
            f=file(sys.argv[1])
            src=f.read()
            exec(convToPython(src))
        elif sys.argv[1]=="-v":
            print PFF_VERSION
        elif sys.argv[1]=="-h":
            info()
    elif len(sys.argv) == 3:
        exec(convToPython(sys.argv[2]))
    else:
                 exit()