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| # -*- coding: utf-8 -*- | ||
| # Author: Mehedi Hasan Khondoker | ||
| # Email: mehedihasankhondoker [at] gmail.com | ||
| # Copyright (c) 2024, Mehedi Hasan Khondoker. All Rights Reserved. | ||
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| # This library is build for Bangladesh format Number to Word conversion. | ||
| # You are welcome as contributor to the library. | ||
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| # This library is free software; you can redistribute it and/or | ||
| # modify it under the terms of the GNU Lesser General Public | ||
| # License as published by the Free Software Foundation; either | ||
| # version 2.1 of the License, or (at your option) any later version. | ||
| # This library 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 | ||
| # Lesser General Public License for more details. | ||
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| from decimal import Decimal | ||
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| RANKING = ['', 'প্রথম', 'দ্বিতীয়', 'তৃতীয়', 'চতুর্থ', 'পঞ্চম', 'ষষ্ঠ', | ||
| 'সপ্তম', 'অষ্টম', 'নবম', 'দশম'] # pragma: no cover | ||
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| AKOK = ['', 'এক', 'দুই', 'তিন', 'চার', 'পাঁচ', 'ছয়', | ||
| 'সাত', 'আট', 'নয়'] # pragma: no cover | ||
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| DOSOK = [ | ||
| 'দশ', 'এগারো', 'বারো', 'তেরো', 'চৌদ্দ', 'পনের', | ||
| 'ষোল', 'সতের', 'আঠারো', 'উনিশ', | ||
| 'বিশ', 'একুশ', 'বাইশ', 'তেইশ', 'চব্বিশ', 'পঁচিশ', | ||
| 'ছাব্বিশ', 'সাতাশ', 'আটাশ', 'উনত্রিশ', | ||
| 'ত্রিশ', 'একত্রিশ', 'বত্রিশ', 'তেত্রিশ', 'চৌত্রিশ', 'পঁইত্রিশ', | ||
| 'ছত্রিশ', 'সাতত্রিশ', 'আটত্রিশ', 'উনচল্লিশ', 'চল্লিশ', | ||
| 'একচল্লিশ', 'বিয়াল্লিশ', 'তেতাল্লিশ', 'চৌচল্লিশ', | ||
| 'পঁয়তাল্লিশ', 'ছেচল্লিশ', 'সাতচল্লিশ', 'আটচল্লিশ', 'উনপঞ্চাশ', | ||
| 'পঞ্চাশ', 'একান্ন', 'বাহান্ন', 'তিপ্পান্ন', 'চুয়ান্ন', 'পঞ্চান্ন', | ||
| 'ছাপ্পান্ন', 'সাতান্ন', 'আটান্ন', 'উনষাট', 'ষাট', | ||
| 'একষট্টি', 'বাষট্টি', 'তেষট্টি', 'চৌষট্টি', 'পঁয়ষট্টি', | ||
| 'ছিষট্টি', 'সাতষট্টি', 'আটষট্টি', 'উনসত্তর', 'সত্তর', | ||
| 'একাত্তর ', 'বাহাত্তর', 'তিয়াত্তর', 'চুয়াত্তর', 'পঁচাত্তর', | ||
| 'ছিয়াত্তর', 'সাতাত্তর', 'আটাত্তর', 'উনআশি', 'আশি', | ||
| 'একাশি', 'বিরাশি', 'তিরাশি', 'চুরাশি', 'পঁচাশি', | ||
| 'ছিয়াশি', 'সাতাশি', 'আটাশি', 'উননব্বই', 'নব্বই', | ||
| 'একানব্বই', 'বিরানব্বই', 'তিরানব্বই', 'চুরানব্বই', 'পঁচানব্বই', | ||
| 'ছিয়ানব্বই', 'সাতানব্বই', 'আটানব্বই', 'নিরানব্বই' | ||
| ] # pragma: no cover | ||
| HAZAR = ' হাজার ' # pragma: no cover | ||
| LAKH = ' লাখ ' # pragma: no cover | ||
| KOTI = ' কোটি ' # pragma: no cover | ||
| MAX_NUMBER = 9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999 # noqa: E501 # pragma: no cover | ||
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| class NumberTooLargeError(Exception): | ||
| """Custom exception for numbers that are too large.""" | ||
| pass | ||
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| class Num2Word_BN: | ||
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| @staticmethod | ||
| def str_to_number(number): | ||
| return abs(Decimal(str(number))) # pragma: no cover | ||
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| @staticmethod | ||
| def parse_number(number: Decimal): | ||
| dosomik = str(number - int(number)).split('.')[1:] | ||
| dosomik_str = ''.join(dosomik) if dosomik else 0 | ||
| return int(number), int(dosomik_str) | ||
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| @staticmethod | ||
| def parse_paisa(number: Decimal): | ||
| # 1-99 for paisa count so two digits are valid. | ||
| paisa = str(number - int(number)).split('.')[1:] | ||
| paisa_str = ''.join(paisa) if paisa else 0 | ||
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| # this is need, when we parse to decimal it removes trailing 0 . | ||
| if paisa_str: | ||
| paisa_str = str(int(paisa_str) * 100)[:2] | ||
| return int(number), int(paisa_str) | ||
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| def _is_smaller_than_max_number(self, number): | ||
| if MAX_NUMBER >= number: | ||
| return True | ||
| raise NumberTooLargeError(f'Too Large number maximum ' | ||
| f'value={MAX_NUMBER}') | ||
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| def _dosomik_to_bengali_word(self, number): | ||
| word = '' | ||
| for i in str(number): | ||
| word += ' ' + AKOK[int(i)] | ||
| return word | ||
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| def _number_to_bengali_word(self, number): | ||
| if number == 0: | ||
| return 'শূন্য' | ||
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| words = '' | ||
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| if number >= 10 ** 7: | ||
| words += self._number_to_bengali_word(number // 10 ** 7) + KOTI | ||
| number %= 10 ** 7 | ||
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| if number >= 10 ** 5: | ||
| words += self._number_to_bengali_word(number // 10 ** 5) + LAKH | ||
| number %= 10 ** 5 | ||
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| if number >= 1000: | ||
| words += self._number_to_bengali_word(number // 1000) + HAZAR | ||
| number %= 1000 | ||
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| if number >= 100: | ||
| words += AKOK[number // 100] + 'শত ' | ||
| number %= 100 | ||
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| if 10 <= number <= 99: | ||
| words += DOSOK[number - 10] + ' ' | ||
| number = 0 | ||
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| if 0 < number < 10: | ||
| words += AKOK[number] + ' ' | ||
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| return words.strip() | ||
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| def to_currency(self, val): | ||
| """ | ||
| This function represent a number to word in bangla taka and paisa. | ||
| example: | ||
| 1 = এক টাকা, | ||
| 101 = একশত এক টাকা, | ||
| 9999.15 = নয় হাজার নয়শত নিরানব্বই টাকা পনের পয়সা | ||
| and so on. | ||
| """ | ||
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| dosomik_word = None | ||
| number = self.str_to_number(val) | ||
| number, decimal_part = self.parse_paisa(number) | ||
| self._is_smaller_than_max_number(number) | ||
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| if decimal_part > 0: | ||
| dosomik_word = f' {self._number_to_bengali_word(decimal_part)} পয়সা' # noqa: E501 | ||
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| words = f'{self._number_to_bengali_word(number)} টাকা' | ||
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| if dosomik_word: | ||
| return (words + dosomik_word).strip() | ||
| return words.strip() | ||
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| def to_cardinal(self, number): | ||
| """ | ||
| This function represent a number to word in bangla. | ||
| example: | ||
| 1 = এক, | ||
| 101 = একশত এক, | ||
| 9999 = নয় হাজার নয়শত নিরানব্বই | ||
| and so on. | ||
| """ | ||
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| dosomik_word = None | ||
| number = self.str_to_number(number) | ||
| number, decimal_part = self.parse_number(number) | ||
| self._is_smaller_than_max_number(number) | ||
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| if decimal_part > 0: | ||
| dosomik_word = f' দশমিক{self._dosomik_to_bengali_word(decimal_part)}' # noqa: E501 | ||
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| words = self._number_to_bengali_word(number) | ||
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| if dosomik_word: | ||
| return (words + dosomik_word).strip() | ||
| return words.strip() | ||
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| def to_ordinal(self, number): | ||
| return self.to_cardinal(number) | ||
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| def to_ordinal_num(self, number): | ||
| """ | ||
| This function represent a number to ranking in bangla. | ||
| example: | ||
| 1 = প্রথম, | ||
| 2 = দ্বিতীয়, | ||
| 1001 = এক হাজার একতম | ||
| and so on. | ||
| """ | ||
| self._is_smaller_than_max_number(number) | ||
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| if number in range(1, 11): | ||
| return RANKING[number] | ||
| else: | ||
| rank = self.to_cardinal(int(abs(number))) | ||
| if rank.endswith('ত'): | ||
| return rank + 'ম' | ||
| return rank + 'তম' | ||
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| def to_year(self, number): | ||
| """ | ||
| This function represent a number to year in bangla. | ||
| example: | ||
| 2002 = দুই হাজার দুই সাল, | ||
| 2024 = দুই হাজার চব্বিশ সাল | ||
| and so on. | ||
| """ | ||
| self._is_smaller_than_max_number(number) | ||
| return self.to_cardinal(int(abs(number))) + ' সাল' |
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