#!/usr/bin/env python
# -*- coding: utf-8 -*-

import re
import sys
import codecs

INTAB = u"aáàảãạâấầẩẫậăắằẳẵặeéèẻẽẹêếềểễệiíìỉĩịoóòỏõọôốồổỗộơớờởỡợuúùủũụưứừửữựyýỳỷỹỵđ"
OUTTAB = "a" * 18 + "e" * 12 + "i" * 6 + "o" * 18 + "u" * 12 + "y" * 6 + "d"

INTAB = INTAB + INTAB.upper()
OUTTAB = OUTTAB + OUTTAB.upper()

r = re.compile("|".join(INTAB))
replaces_dict = dict(zip(INTAB, OUTTAB))


def remove_diacritic(utf8_str):
    return r.sub(lambda m: replaces_dict[m.group(0)], utf8_str)

if __name__ == '__main__':
    fi = codecs.open(sys.argv[1], 'r', 'utf-8')
    fo = codecs.open(sys.argv[2], 'w', 'utf-8')

    loai_dau_unicode = remove_diacritic(fi.read())

#sac            \u0301
#huyen          \u0300
#hoi            \u0309
#nga            \u0303
#nang           \u0323
#['\u0301', '\u0300', '\u0309', '\u0303', '\u0323']
    # dau unicode to hop
    #for i in [unichr(771), unichr(768), unichr(777), unichr(769), unichr(803)]:
            #loai_dau_unicode = loai_dau_unicode.replace(i, '')
    fo.write(loai_dau_unicode)

    fi.close()
    fo.close()