64 lines
1.8 KiB
Python
64 lines
1.8 KiB
Python
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#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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"""
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:mod: module
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:author: `Éric W`
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:date: 2016, october
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"""
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def usage():
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print('Usage: {:s} <bdd> <n>'.format(sys.argv[0]))
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print('where')
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print('\t<bdd> is a text file whose lines are valid sudoku grids descriptions')
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print('\t<n> is the line number to extract in file <bdd>')
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print('\nExample: with the grid on line 7 of the file bdd/sudokus.bdd')
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print('$ {:s} bdd/sudokus.bdd 7'.format(sys.argv[0]))
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exit(1)
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if __name__ == '__main__':
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import sys
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import sudoku_grid, sudoku_solver
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if len(sys.argv) != 3:
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print('Argument missing.')
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usage()
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else:
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filename = sys.argv[1]
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try:
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n = int(sys.argv[2])
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except ValueError:
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print('Second argument must be an integer >=0.')
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usage()
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try:
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with open(filename, 'r') as input:
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lines = input.readlines()
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except FileNotFoundError:
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print('No such file {:s}'.format(filename))
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usage()
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try:
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line = lines[n].rstrip('\n')
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except IndexError:
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print('File {:s} has no line number {:d}.'.format(filename, n))
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usage()
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strgrid = line.split(':')[-1]
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try:
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grid = sudoku_grid.SudokuGrid(strgrid)
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except sudoku_grid.SudokuGridError:
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print("Line number {:d} of file {:s} has no valid sudoku's grid description".format(n, filename,))
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usage()
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print('Sudoku to solve')
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grid.pretty_print()
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sols = sudoku_solver.solve(grid)
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nb_sols = len(sols)
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print('Number of solution(s): {:d}'.format(nb_sols))
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print('--')
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for i in range(nb_sols):
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print('Solution {:d}'.format(i + 1))
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sols[i].pretty_print()
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print('--')
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exit(0)
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