# -*- coding: utf-8 -*-
#  k2a.py
#
# Copyright 2011 Hiroshi Miura <miurahr@linux.com>
#
# Original copyright:
# * KAKASI (Kanji Kana Simple inversion program)
# * $Id: jj2.c,v 1.7 2001-04-12 05:57:34 rug Exp $
# * Copyright (C) 1992
# * Hironobu Takahashi (takahasi@tiny.or.jp)
# *
# * This program is free software; you can redistribute it and/or modify
# * it under the terms of the GNU General Public License as published by
# * the Free Software Foundation; either versions 2, or (at your option)
# * any later version.
# *
# * This program is distributed in the hope that it will be useful
# * but WITHOUT ANY WARRANTY; without even the implied warranty of
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# * GNU General Public License for more details.
# *
# */

from calibre.ebooks.unihandecode.pykakasi.jisyo import jisyo

class K2a (object):

    kanwa = None

    def __init__(self):
        self.kanwa = jisyo()

    def isKatakana(self, char):
        return ( 0x30a0 < ord(char) and ord(char) < 0x30f7)

    def convert(self, text):
        Hstr = ""
        max_len = -1
        r = min(10, len(text)+1)
        for x in xrange(r):
            if text[:x] in self.kanwa.kanadict:
                if max_len < x:
                    max_len = x
                    Hstr = self.kanwa.kanadict[text[:x]]
        return (Hstr, max_len)

