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import re
from jamo import h2j, j2hcj
import ko_pron


# This is a list of Korean classifiers preceded by pure Korean numerals.
_korean_classifiers = '๊ตฐ๋ฐ ๊ถŒ ๊ฐœ ๊ทธ๋ฃจ ๋‹ข ๋Œ€ ๋‘ ๋งˆ๋ฆฌ ๋ชจ ๋ชจ๊ธˆ ๋ญ‡ ๋ฐœ ๋ฐœ์ง ๋ฐฉ ๋ฒˆ ๋ฒŒ ๋ณด๋ฃจ ์‚ด ์ˆ˜ ์ˆ  ์‹œ ์Œˆ ์›€ํผ ์ • ์ง ์ฑ„ ์ฒ™ ์ฒฉ ์ถ• ์ผค๋ ˆ ํ†จ ํ†ต'

# List of (hangul, hangul divided) pairs:
_hangul_divided = [(re.compile('%s' % x[0]), x[1]) for x in [
    ('ใ„ณ', 'ใ„ฑใ……'),
    ('ใ„ต', 'ใ„ดใ…ˆ'),
    ('ใ„ถ', 'ใ„ดใ…Ž'),
    ('ใ„บ', 'ใ„นใ„ฑ'),
    ('ใ„ป', 'ใ„นใ…'),
    ('ใ„ผ', 'ใ„นใ…‚'),
    ('ใ„ฝ', 'ใ„นใ……'),
    ('ใ„พ', 'ใ„นใ…Œ'),
    ('ใ„ฟ', 'ใ„นใ…'),
    ('ใ…€', 'ใ„นใ…Ž'),
    ('ใ…„', 'ใ…‚ใ……'),
    ('ใ…˜', 'ใ…—ใ…'),
    ('ใ…™', 'ใ…—ใ…'),
    ('ใ…š', 'ใ…—ใ…ฃ'),
    ('ใ…', 'ใ…œใ…“'),
    ('ใ…ž', 'ใ…œใ…”'),
    ('ใ…Ÿ', 'ใ…œใ…ฃ'),
    ('ใ…ข', 'ใ…กใ…ฃ'),
    ('ใ…‘', 'ใ…ฃใ…'),
    ('ใ…’', 'ใ…ฃใ…'),
    ('ใ…•', 'ใ…ฃใ…“'),
    ('ใ…–', 'ใ…ฃใ…”'),
    ('ใ…›', 'ใ…ฃใ…—'),
    ('ใ… ', 'ใ…ฃใ…œ')
]]

# List of (Latin alphabet, hangul) pairs:
_latin_to_hangul = [(re.compile('%s' % x[0], re.IGNORECASE), x[1]) for x in [
    ('a', '์—์ด'),
    ('b', '๋น„'),
    ('c', '์‹œ'),
    ('d', '๋””'),
    ('e', '์ด'),
    ('f', '์—ํ”„'),
    ('g', '์ง€'),
    ('h', '์—์ด์น˜'),
    ('i', '์•„์ด'),
    ('j', '์ œ์ด'),
    ('k', '์ผ€์ด'),
    ('l', '์—˜'),
    ('m', '์— '),
    ('n', '์—”'),
    ('o', '์˜ค'),
    ('p', 'ํ”ผ'),
    ('q', 'ํ'),
    ('r', '์•„๋ฅด'),
    ('s', '์—์Šค'),
    ('t', 'ํ‹ฐ'),
    ('u', '์œ '),
    ('v', '๋ธŒ์ด'),
    ('w', '๋”๋ธ”์œ '),
    ('x', '์—‘์Šค'),
    ('y', '์™€์ด'),
    ('z', '์ œํŠธ')
]]

# List of (ipa, lazy ipa) pairs:
_ipa_to_lazy_ipa = [(re.compile('%s' % x[0], re.IGNORECASE), x[1]) for x in [
    ('tอกษ•','สง'),
    ('dอกส‘','สฅ'),
    ('ษฒ','n^'),
    ('ษ•','สƒ'),
    ('สท','w'),
    ('ษญ','l`'),
    ('สŽ','ษพ'),
    ('ษฃ','ล‹'),
    ('ษฐ','ษฏ'),
    ('ส','j'),
    ('สŒ','ษ™'),
    ('ษก','g'),
    ('\u031a','#'),
    ('\u0348','='),
    ('\u031e',''),
    ('\u0320',''),
    ('\u0339','')
]]


def latin_to_hangul(text):
    for regex, replacement in _latin_to_hangul:
        text = re.sub(regex, replacement, text)
    return text


def divide_hangul(text):
    text = j2hcj(h2j(text))
    for regex, replacement in _hangul_divided:
        text = re.sub(regex, replacement, text)
    return text


def hangul_number(num, sino=True):
    '''Reference https://github.com/Kyubyong/g2pK'''
    num = re.sub(',', '', num)

    if num == '0':
        return '์˜'
    if not sino and num == '20':
        return '์Šค๋ฌด'

    digits = '123456789'
    names = '์ผ์ด์‚ผ์‚ฌ์˜ค์œก์น ํŒ”๊ตฌ'
    digit2name = {d: n for d, n in zip(digits, names)}

    modifiers = 'ํ•œ ๋‘ ์„ธ ๋„ค ๋‹ค์„ฏ ์—ฌ์„ฏ ์ผ๊ณฑ ์—ฌ๋Ÿ ์•„ํ™‰'
    decimals = '์—ด ์Šค๋ฌผ ์„œ๋ฅธ ๋งˆํ” ์‰ฐ ์˜ˆ์ˆœ ์ผํ” ์—ฌ๋“  ์•„ํ”'
    digit2mod = {d: mod for d, mod in zip(digits, modifiers.split())}
    digit2dec = {d: dec for d, dec in zip(digits, decimals.split())}

    spelledout = []
    for i, digit in enumerate(num):
        i = len(num) - i - 1
        if sino:
            if i == 0:
                name = digit2name.get(digit, '')
            elif i == 1:
                name = digit2name.get(digit, '') + '์‹ญ'
                name = name.replace('์ผ์‹ญ', '์‹ญ')
        else:
            if i == 0:
                name = digit2mod.get(digit, '')
            elif i == 1:
                name = digit2dec.get(digit, '')
        if digit == '0':
            if i % 4 == 0:
                last_three = spelledout[-min(3, len(spelledout)):]
                if ''.join(last_three) == '':
                    spelledout.append('')
                    continue
            else:
                spelledout.append('')
                continue
        if i == 2:
            name = digit2name.get(digit, '') + '๋ฐฑ'
            name = name.replace('์ผ๋ฐฑ', '๋ฐฑ')
        elif i == 3:
            name = digit2name.get(digit, '') + '์ฒœ'
            name = name.replace('์ผ์ฒœ', '์ฒœ')
        elif i == 4:
            name = digit2name.get(digit, '') + '๋งŒ'
            name = name.replace('์ผ๋งŒ', '๋งŒ')
        elif i == 5:
            name = digit2name.get(digit, '') + '์‹ญ'
            name = name.replace('์ผ์‹ญ', '์‹ญ')
        elif i == 6:
            name = digit2name.get(digit, '') + '๋ฐฑ'
            name = name.replace('์ผ๋ฐฑ', '๋ฐฑ')
        elif i == 7:
            name = digit2name.get(digit, '') + '์ฒœ'
            name = name.replace('์ผ์ฒœ', '์ฒœ')
        elif i == 8:
            name = digit2name.get(digit, '') + '์–ต'
        elif i == 9:
            name = digit2name.get(digit, '') + '์‹ญ'
        elif i == 10:
            name = digit2name.get(digit, '') + '๋ฐฑ'
        elif i == 11:
            name = digit2name.get(digit, '') + '์ฒœ'
        elif i == 12:
            name = digit2name.get(digit, '') + '์กฐ'
        elif i == 13:
            name = digit2name.get(digit, '') + '์‹ญ'
        elif i == 14:
            name = digit2name.get(digit, '') + '๋ฐฑ'
        elif i == 15:
            name = digit2name.get(digit, '') + '์ฒœ'
        spelledout.append(name)
    return ''.join(elem for elem in spelledout)


def number_to_hangul(text):
    '''Reference https://github.com/Kyubyong/g2pK'''
    tokens = set(re.findall(r'(\d[\d,]*)([\uac00-\ud71f]+)', text))
    for token in tokens:
        num, classifier = token
        if classifier[:2] in _korean_classifiers or classifier[0] in _korean_classifiers:
            spelledout = hangul_number(num, sino=False)
        else:
            spelledout = hangul_number(num, sino=True)
        text = text.replace(f'{num}{classifier}', f'{spelledout}{classifier}')
    # digit by digit for remaining digits
    digits = '0123456789'
    names = '์˜์ผ์ด์‚ผ์‚ฌ์˜ค์œก์น ํŒ”๊ตฌ'
    for d, n in zip(digits, names):
        text = text.replace(d, n)
    return text


def korean_to_lazy_ipa(text):
    text = latin_to_hangul(text)
    text = number_to_hangul(text)
    text=re.sub('[\uac00-\ud7af]+',lambda x:ko_pron.romanise(x.group(0),'ipa'),text).split('] ~ [')[0]
    for regex, replacement in _ipa_to_lazy_ipa:
        text = re.sub(regex, replacement, text)
    return text