#!/usr/bin/env pypy3

# pylint: disable=superfluous-parens
# superfluous-parens: Parentheses are good for clarity and portability

# Note that this code is almost 4x faster on pypy 2.2 than cpython 3.3.

"""Compute anagrams for an input sentence."""

import sys

import anagrams_mod


def main():
    """Find anagrams of an input sentence in sys.argv[1]."""
    if ' ' in ''.join(sys.argv[1]):
        sys.stderr.write('{}: Sorry, no spaces allowed\n'.format(sys.argv[0]))
        sys.exit(1)

    original_sentence = ' '.join(word.strip() for word in sys.argv[1:]).lower()
    original_sentence_sans_blanks = ''.join(word.strip() for word in sys.argv[1:]).lower()

    if not original_sentence_sans_blanks.isalpha():
        sys.stderr.write('{}: Sorry, only alphabetic sentences are allowed:\n'.format(sys.argv[0]))
        sys.stderr.write('no punctuation, no digits, no special characters\n')
        sys.exit(1)

    with open('/usr/share/dict/words', 'r', encoding="utf-8") as dictionary_file:
        anagrams_mod.find_anagrams(to_stdout=True, dictionary_file=dictionary_file, original_sentence_string=original_sentence)


main()