#!/usr/bin/env python

# Sorts a list of filenames, comparing embedded numbers numerically instead of

# lexicographically. This will sort e.g. "a.2" after "a.10" instead of before.

# Usage: self [filename...] >sorted_list

import re

import sys

def str2tuple(str_):

    parts = re.split(r'(\d+)', str_)

    for i, part in enumerate(parts):

        if i % 2 == 1: # every other part is a delimeter match = a number

            parts[i] = int(part)

    parts.append('') # padding to ignore original str (added below) when sorting

    parts.append(str_) # save original str for easy conversion back to str

    return tuple(parts)

def tuple2str(tuple_): return tuple_[-1]

def main():

    filenames = map(str2tuple, sys.argv[1:])

    filenames.sort()

    for filename in map(tuple2str, filenames): sys.stdout.write(filename+'\n')

main()