#! /usr/bin/env python
# -*- coding: UTF-8 -*-

""" ResisPy!, calcola la resistenza dai colori in python creato da
              Frafra (www.frafra-eu.org francesco.it@gmail.com)

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU General Public License for more details.
"""  

__module_name__ = "ResisPy!"
__module_version__ = "0.8"
__module_description__ = "Calcolatore di resistenze"

color=[
    "nero", "marrone", "rosso", "arancione", "giallo", "verde", "blu",
    "viola", "grigio", "bianco"
    ]
incertezza={"oro":5, "argento":10, "":20}

def put(txt, t=0):
    for x in range(5):
        data=raw_input(txt).lower()
        if data=="":
            print "Colore non valido:", data            
        elif data in color and not t:
            return color.index(data)
        elif data in incertezza.keys():
            return incertezza[data]
        else:
            print "Colore non valido:", data
    else:
        print "Sei troppo stupido per usare questo programma. Ritorno \"nero\"."
        return 0

def calc(n1, n2, n3=0, n4="n.d."):
    res=(n1*10+n2)*10**n3
    return res, n4

ans="Inserisci un colore: "
n1, n2, n3, n4=[put(ans) for x in range(4)]
print "Resistenza: %d ohm +- %d (incertezza percentuale)" % calc(n1, n2, n3, n4)