big5

#!/usr/bin/env python

# convert encodings with: iconv -c -f SRC -t DEST

import sys
import os
import subprocess

def program_name():
    return os.path.basename(sys.argv[0])

main_function_list = []

def main_function(func):
    global main_function_list
    main_function_list.append(func)
    return func

def iconv(src_encoding, to_encoding):
    subprocess.check_call(['iconv', '-c', '-f', src_encoding, '-t', to_encoding])

@main_function
def utf16(args):
    iconv('utf16', 'utf8')

@main_function
def big5(args):
    iconv('big5hkscs', 'utf8')

@main_function
def gb2312(args):
    iconv('gb18030', 'utf8')

def main(args):
    def to_command_name(s):
        return s.replace('_', '-')

    name_to_function = dict( (to_command_name(x.__name__), x)
                            for x in main_function_list )
    return name_to_function[program_name()](args)

if __name__ == '__main__':
    main(sys.argv[1:])