#!/usr/bin/env python3

 # This file is under GNU General Public License 3.0

 # see LICENSE.txt

 from sqlite3 import connect

 from os import environ

 from argparse import ArgumentParser

 from re import sub

 try:

     environ["ALLUSERSPROFILE"]

 except KeyError:

     db_file = "/usr/local/share/pEp/system.db"

 else:

     db_file = environ["ALLUSERSPROFILE"] + r"\pEp\system.db"

 p = ArgumentParser(description="show trustwords instead of hex fingerprint")

 p.add_argument('--db-path', '-d', type=str, default=db_file,

         help='path to pEp system db (default: ' + db_file + ')')

 p.add_argument('--lang', '-l', type=str, default="en",

         help='use dictionary for language LANG (default: en)')

 p.add_argument('--short', '-s', action='store_true',

         help='display the first 5 of the trustwords')

 p.add_argument('hex', metavar="hex", type=str, nargs='+',

         help='hex values of fingerprint')

 args = p.parse_args()

 c = connect(args.db_path).cursor()

 hex_string = sub(r"\W", "", "".join(args.hex))

 def hex_word(s):

     n = min(20, len(s)) if args.short else len(s)

     for i in range(0, n, 4):

         yield s[i:i+4]

 r = []

 for arg in hex_word(hex_string):

     c.execute("select word from wordlist where id = {} and lang = lower('{}')".format(

             str(int(arg, 16)), args.lang))

     r.append(c.fetchall()[0][0])

 print(" ".join(r))