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text/LICENSE

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+Copyright (c) 2017 Keith Ito
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

text/__init__.py

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+""" from https://github.com/keithito/tacotron """
+from text import cleaners
+from text.symbols import symbols
+
+
+# Mappings from symbol to numeric ID and vice versa:
+_symbol_to_id = {s: i for i, s in enumerate(symbols)}
+_id_to_symbol = {i: s for i, s in enumerate(symbols)}
+
+
+def text_to_sequence(text, cleaner_names):
+  '''Converts a string of text to a sequence of IDs corresponding to the symbols in the text.
+    Args:
+      text: string to convert to a sequence
+      cleaner_names: names of the cleaner functions to run the text through
+    Returns:
+      List of integers corresponding to the symbols in the text
+  '''
+  sequence = []
+
+  clean_text = _clean_text(text, cleaner_names)
+  for symbol in clean_text:
+    if symbol not in _symbol_to_id.keys():
+      continue
+    symbol_id = _symbol_to_id[symbol]
+    sequence += [symbol_id]
+  return sequence
+
+
+def cleaned_text_to_sequence(cleaned_text):
+  '''Converts a string of text to a sequence of IDs corresponding to the symbols in the text.
+    Args:
+      text: string to convert to a sequence
+    Returns:
+      List of integers corresponding to the symbols in the text
+  '''
+  sequence = [_symbol_to_id[symbol] for symbol in cleaned_text if symbol in _symbol_to_id.keys()]
+  return sequence
+
+
+def sequence_to_text(sequence):
+  '''Converts a sequence of IDs back to a string'''
+  result = ''
+  for symbol_id in sequence:
+    s = _id_to_symbol[symbol_id]
+    result += s
+  return result
+
+
+def _clean_text(text, cleaner_names):
+  for name in cleaner_names:
+    cleaner = getattr(cleaners, name)
+    if not cleaner:
+      raise Exception('Unknown cleaner: %s' % name)
+    text = cleaner(text)
+  return text

text/cleaners.py

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+""" from https://github.com/keithito/tacotron """
+
+'''
+Cleaners are transformations that run over the input text at both training and eval time.
+
+Cleaners can be selected by passing a comma-delimited list of cleaner names as the "cleaners"
+hyperparameter. Some cleaners are English-specific. You'll typically want to use:
+  1. "english_cleaners" for English text
+  2. "transliteration_cleaners" for non-English text that can be transliterated to ASCII using
+     the Unidecode library (https://pypi.python.org/pypi/Unidecode)
+  3. "basic_cleaners" if you do not want to transliterate (in this case, you should also update
+     the symbols in symbols.py to match your data).
+'''
+
+import re
+from unidecode import unidecode
+import pyopenjtalk
+from jamo import h2j, j2hcj
+from pypinyin import lazy_pinyin, BOPOMOFO
+import jieba, cn2an
+
+
+# This is a list of Korean classifiers preceded by pure Korean numerals.
+_korean_classifiers = '군데 권 개 그루 닢 대 두 마리 모 모금 뭇 발 발짝 방 번 벌 보루 살 수 술 시 쌈 움큼 정 짝 채 척 첩 축 켤레 톨 통'
+
+# Regular expression matching whitespace:
+_whitespace_re = re.compile(r'\s+')
+
+# Regular expression matching Japanese without punctuation marks:
+_japanese_characters = re.compile(r'[A-Za-z\d\u3005\u3040-\u30ff\u4e00-\u9fff\uff11-\uff19\uff21-\uff3a\uff41-\uff5a\uff66-\uff9d]')
+
+# Regular expression matching non-Japanese characters or punctuation marks:
+_japanese_marks = re.compile(r'[^A-Za-z\d\u3005\u3040-\u30ff\u4e00-\u9fff\uff11-\uff19\uff21-\uff3a\uff41-\uff5a\uff66-\uff9d]')
+
+# List of (regular expression, replacement) pairs for abbreviations:
+_abbreviations = [(re.compile('\\b%s\\.' % x[0], re.IGNORECASE), x[1]) for x in [
+  ('mrs', 'misess'),
+  ('mr', 'mister'),
+  ('dr', 'doctor'),
+  ('st', 'saint'),
+  ('co', 'company'),
+  ('jr', 'junior'),
+  ('maj', 'major'),
+  ('gen', 'general'),
+  ('drs', 'doctors'),
+  ('rev', 'reverend'),
+  ('lt', 'lieutenant'),
+  ('hon', 'honorable'),
+  ('sgt', 'sergeant'),
+  ('capt', 'captain'),
+  ('esq', 'esquire'),
+  ('ltd', 'limited'),
+  ('col', 'colonel'),
+  ('ft', 'fort'),
+]]
+
+# List of (hangul, hangul divided) pairs:
+_hangul_divided = [(re.compile('%s' % x[0]), x[1]) for x in [
+  ('ㄳ', 'ㄱㅅ'),
+  ('ㄵ', 'ㄴㅈ'),
+  ('ㄶ', 'ㄴㅎ'),
+  ('ㄺ', 'ㄹㄱ'),
+  ('ㄻ', 'ㄹㅁ'),
+  ('ㄼ', 'ㄹㅂ'),
+  ('ㄽ', 'ㄹㅅ'),
+  ('ㄾ', 'ㄹㅌ'),
+  ('ㄿ', 'ㄹㅍ'),
+  ('ㅀ', 'ㄹㅎ'),
+  ('ㅄ', 'ㅂㅅ'),
+  ('ㅘ', 'ㅗㅏ'),
+  ('ㅙ', 'ㅗㅐ'),
+  ('ㅚ', 'ㅗㅣ'),
+  ('ㅝ', 'ㅜㅓ'),
+  ('ㅞ', 'ㅜㅔ'),
+  ('ㅟ', 'ㅜㅣ'),
+  ('ㅢ', 'ㅡㅣ'),
+  ('ㅑ', 'ㅣㅏ'),
+  ('ㅒ', 'ㅣㅐ'),
+  ('ㅕ', 'ㅣㅓ'),
+  ('ㅖ', 'ㅣㅔ'),
+  ('ㅛ', 'ㅣㅗ'),
+  ('ㅠ', 'ㅣㅜ')
+]]
+
+# List of (Latin alphabet, hangul) pairs:
+_latin_to_hangul = [(re.compile('%s' % x[0], re.IGNORECASE), x[1]) for x in [
+  ('a', '에이'),
+  ('b', '비'),
+  ('c', '시'),
+  ('d', '디'),
+  ('e', '이'),
+  ('f', '에프'),
+  ('g', '지'),
+  ('h', '에이치'),
+  ('i', '아이'),
+  ('j', '제이'),
+  ('k', '케이'),
+  ('l', '엘'),
+  ('m', '엠'),
+  ('n', '엔'),
+  ('o', '오'),
+  ('p', '피'),
+  ('q', '큐'),
+  ('r', '아르'),
+  ('s', '에스'),
+  ('t', '티'),
+  ('u', '유'),
+  ('v', '브이'),
+  ('w', '더블유'),
+  ('x', '엑스'),
+  ('y', '와이'),
+  ('z', '제트')
+]]
+
+# List of (Latin alphabet, bopomofo) pairs:
+_latin_to_bopomofo = [(re.compile('%s' % x[0], re.IGNORECASE), x[1]) for x in [
+  ('a', 'ㄟˉ'),
+  ('b', 'ㄅㄧˋ'),
+  ('c', 'ㄙㄧˉ'),
+  ('d', 'ㄉㄧˋ'),
+  ('e', 'ㄧˋ'),
+  ('f', 'ㄝˊㄈㄨˋ'),
+  ('g', 'ㄐㄧˋ'),
+  ('h', 'ㄝˇㄑㄩˋ'),
+  ('i', 'ㄞˋ'),
+  ('j', 'ㄐㄟˋ'),
+  ('k', 'ㄎㄟˋ'),
+  ('l', 'ㄝˊㄛˋ'),
+  ('m', 'ㄝˊㄇㄨˋ'),
+  ('n', 'ㄣˉ'),
+  ('o', 'ㄡˉ'),
+  ('p', 'ㄆㄧˉ'),
+  ('q', 'ㄎㄧㄡˉ'),
+  ('r', 'ㄚˋ'),
+  ('s', 'ㄝˊㄙˋ'),
+  ('t', 'ㄊㄧˋ'),
+  ('u', 'ㄧㄡˉ'),
+  ('v', 'ㄨㄧˉ'),
+  ('w', 'ㄉㄚˋㄅㄨˋㄌㄧㄡˋ'),
+  ('x', 'ㄝˉㄎㄨˋㄙˋ'),
+  ('y', 'ㄨㄞˋ'),
+  ('z', 'ㄗㄟˋ')
+]]
+
+
+# List of (bopomofo, romaji) pairs:
+_bopomofo_to_romaji = [(re.compile('%s' % x[0], re.IGNORECASE), x[1]) for x in [
+  ('ㄅㄛ', 'p⁼wo'),
+  ('ㄆㄛ', 'pʰwo'),
+  ('ㄇㄛ', 'mwo'),
+  ('ㄈㄛ', 'fwo'),
+  ('ㄅ', 'p⁼'),
+  ('ㄆ', 'pʰ'),
+  ('ㄇ', 'm'),
+  ('ㄈ', 'f'),
+  ('ㄉ', 't⁼'),
+  ('ㄊ', 'tʰ'),
+  ('ㄋ', 'n'),
+  ('ㄌ', 'l'),
+  ('ㄍ', 'k⁼'),
+  ('ㄎ', 'kʰ'),
+  ('ㄏ', 'h'),
+  ('ㄐ', 'ʧ⁼'),
+  ('ㄑ', 'ʧʰ'),
+  ('ㄒ', 'ʃ'),
+  ('ㄓ', 'ʦ`⁼'),
+  ('ㄔ', 'ʦ`ʰ'),
+  ('ㄕ', 's`'),
+  ('ㄖ', 'ɹ`'),
+  ('ㄗ', 'ʦ⁼'),
+  ('ㄘ', 'ʦʰ'),
+  ('ㄙ', 's'),
+  ('ㄚ', 'a'),
+  ('ㄛ', 'o'),
+  ('ㄜ', 'ə'),
+  ('ㄝ', 'e'),
+  ('ㄞ', 'ai'),
+  ('ㄟ', 'ei'),
+  ('ㄠ', 'au'),
+  ('ㄡ', 'ou'),
+  ('ㄧㄢ', 'yeNN'),
+  ('ㄢ', 'aNN'),
+  ('ㄧㄣ', 'iNN'),
+  ('ㄣ', 'əNN'),
+  ('ㄤ', 'aNg'),
+  ('ㄧㄥ', 'iNg'),
+  ('ㄨㄥ', 'uNg'),
+  ('ㄩㄥ', 'yuNg'),
+  ('ㄥ', 'əNg'),
+  ('ㄦ', 'əɻ'),
+  ('ㄧ', 'i'),
+  ('ㄨ', 'u'),
+  ('ㄩ', 'ɥ'),
+  ('ˉ', '→'),
+  ('ˊ', '↑'),
+  ('ˇ', '↓↑'),
+  ('ˋ', '↓'),
+  ('˙', ''),
+  ('，', ','),
+  ('。', '.'),
+  ('！', '!'),
+  ('？', '?'),
+  ('—', '-')
+]]
+
+
+def expand_abbreviations(text):
+  for regex, replacement in _abbreviations:
+    text = re.sub(regex, replacement, text)
+  return text
+
+
+def lowercase(text):
+  return text.lower()
+
+
+def collapse_whitespace(text):
+  return re.sub(_whitespace_re, ' ', text)
+
+
+def convert_to_ascii(text):
+  return unidecode(text)
+
+
+def japanese_to_romaji_with_accent(text):
+  '''Reference https://r9y9.github.io/ttslearn/latest/notebooks/ch10_Recipe-Tacotron.html'''
+  sentences = re.split(_japanese_marks, text)
+  marks = re.findall(_japanese_marks, text)
+  text = ''
+  for i, sentence in enumerate(sentences):
+    if re.match(_japanese_characters, sentence):
+      if text!='':
+        text+=' '
+      labels = pyopenjtalk.extract_fullcontext(sentence)
+      for n, label in enumerate(labels):
+        phoneme = re.search(r'\-([^\+]*)\+', label).group(1)
+        if phoneme not in ['sil','pau']:
+          text += phoneme.replace('ch','ʧ').replace('sh','ʃ').replace('cl','Q')
+        else:
+          continue
+        n_moras = int(re.search(r'/F:(\d+)_', label).group(1))
+        a1 = int(re.search(r"/A:(\-?[0-9]+)\+", label).group(1))
+        a2 = int(re.search(r"\+(\d+)\+", label).group(1))
+        a3 = int(re.search(r"\+(\d+)/", label).group(1))
+        if re.search(r'\-([^\+]*)\+', labels[n + 1]).group(1) in ['sil','pau']:
+          a2_next=-1
+        else:
+          a2_next = int(re.search(r"\+(\d+)\+", labels[n + 1]).group(1))
+        # Accent phrase boundary
+        if a3 == 1 and a2_next == 1:
+          text += ' '
+        # Falling
+        elif a1 == 0 and a2_next == a2 + 1 and a2 != n_moras:
+          text += '↓'
+        # Rising
+        elif a2 == 1 and a2_next == 2:
+          text += '↑'
+    if i<len(marks):
+      text += unidecode(marks[i]).replace(' ','')
+  return text
+
+
+def latin_to_hangul(text):
+  for regex, replacement in _latin_to_hangul:
+    text = re.sub(regex, replacement, text)
+  return text
+
+
+def divide_hangul(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 '영'
+  if not sino and num == '20':
+      return '스무'
+
+  digits = '123456789'
+  names = '일이삼사오육칠팔구'
+  digit2name = {d: n for d, n in zip(digits, names)}
+  
+  modifiers = '한 두 세 네 다섯 여섯 일곱 여덟 아홉'
+  decimals = '열 스물 서른 마흔 쉰 예순 일흔 여든 아흔'
+  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, '') + '십'
+        name = name.replace('일십', '십')
+    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, '') + '백'
+      name = name.replace('일백', '백')
+    elif i == 3:
+      name = digit2name.get(digit, '') + '천'
+      name = name.replace('일천', '천')
+    elif i == 4:
+      name = digit2name.get(digit, '') + '만'
+      name = name.replace('일만', '만')
+    elif i == 5:
+      name = digit2name.get(digit, '') + '십'
+      name = name.replace('일십', '십')
+    elif i == 6:
+      name = digit2name.get(digit, '') + '백'
+      name = name.replace('일백', '백')
+    elif i == 7:
+      name = digit2name.get(digit, '') + '천'
+      name = name.replace('일천', '천')
+    elif i == 8:
+      name = digit2name.get(digit, '') + '억'
+    elif i == 9:
+      name = digit2name.get(digit, '') + '십'
+    elif i == 10:
+      name = digit2name.get(digit, '') + '백'
+    elif i == 11:
+      name = digit2name.get(digit, '') + '천'
+    elif i == 12:
+      name = digit2name.get(digit, '') + '조'
+    elif i == 13:
+      name = digit2name.get(digit, '') + '십'
+    elif i == 14:
+      name = digit2name.get(digit, '') + '백'
+    elif i == 15:
+      name = digit2name.get(digit, '') + '천'
+    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 = '영일이삼사오육칠팔구'
+  for d, n in zip(digits, names):
+    text = text.replace(d, n)
+  return text
+
+
+def number_to_chinese(text):
+  numbers = re.findall(r'\d+(?:\.?\d+)?', text)
+  for number in numbers:
+    text = text.replace(number, cn2an.an2cn(number),1)
+  return text
+
+
+def chinese_to_bopomofo(text):
+  text=text.replace('、','，').replace('；','，').replace('：','，')
+  words=jieba.lcut(text,cut_all=False)
+  text=''
+  for word in words:
+    bopomofos=lazy_pinyin(word,BOPOMOFO)
+    if not re.search('[\u4e00-\u9fff]',word):
+      text+=word
+      continue
+    for i in range(len(bopomofos)):
+      if re.match('[\u3105-\u3129]',bopomofos[i][-1]):
+        bopomofos[i]+='ˉ'
+    if text!='':
+      text+=' '
+    text+=''.join(bopomofos)
+  return text
+
+
+def latin_to_bopomofo(text):
+  for regex, replacement in _latin_to_bopomofo:
+    text = re.sub(regex, replacement, text)
+  return text
+
+
+def bopomofo_to_romaji(text):
+  for regex, replacement in _bopomofo_to_romaji:
+    text = re.sub(regex, replacement, text)
+  return text
+
+
+def basic_cleaners(text):
+  '''Basic pipeline that lowercases and collapses whitespace without transliteration.'''
+  text = lowercase(text)
+  text = collapse_whitespace(text)
+  return text
+
+
+def transliteration_cleaners(text):
+  '''Pipeline for non-English text that transliterates to ASCII.'''
+  text = convert_to_ascii(text)
+  text = lowercase(text)
+  text = collapse_whitespace(text)
+  return text
+
+
+def japanese_cleaners(text):
+  text=japanese_to_romaji_with_accent(text)
+  if re.match('[A-Za-z]',text[-1]):
+    text += '.'
+  return text
+
+
+def japanese_cleaners2(text):
+  return japanese_cleaners(text).replace('ts','ʦ').replace('...','…')
+
+
+def korean_cleaners(text):
+  '''Pipeline for Korean text'''
+  text = latin_to_hangul(text)
+  text = number_to_hangul(text)
+  text = j2hcj(h2j(text))
+  text = divide_hangul(text)
+  if re.match('[\u3131-\u3163]',text[-1]):
+    text += '.'
+  return text
+
+
+def chinese_cleaners(text):
+  '''Pipeline for Chinese text'''
+  text=number_to_chinese(text)
+  text=chinese_to_bopomofo(text)
+  text=latin_to_bopomofo(text)
+  if re.match('[ˉˊˇˋ˙]',text[-1]):
+    text += '。'
+  return text
+
+
+def zh_ja_mixture_cleaners(text):
+  chinese_texts=re.findall(r'\[ZH\].*?\[ZH\]',text)
+  japanese_texts=re.findall(r'\[JA\].*?\[JA\]',text)
+  for chinese_text in chinese_texts:
+    cleaned_text=number_to_chinese(chinese_text[4:-4])
+    cleaned_text=chinese_to_bopomofo(cleaned_text)
+    cleaned_text=latin_to_bopomofo(cleaned_text)
+    cleaned_text=bopomofo_to_romaji(cleaned_text)
+    cleaned_text=re.sub('i[aoe]',lambda x:'y'+x.group(0)[1:],cleaned_text)
+    cleaned_text=re.sub('u[aoəe]',lambda x:'w'+x.group(0)[1:],cleaned_text)
+    cleaned_text=re.sub('([ʦsɹ]`[⁼ʰ]?)([→↓↑]+)',lambda x:x.group(1)+'ɹ`'+x.group(2),cleaned_text).replace('ɻ','ɹ`')
+    cleaned_text=re.sub('([ʦs][⁼ʰ]?)([→↓↑]+)',lambda x:x.group(1)+'ɹ'+x.group(2),cleaned_text)
+    text = text.replace(chinese_text,cleaned_text+' ',1)
+  for japanese_text in japanese_texts:
+    cleaned_text=japanese_to_romaji_with_accent(japanese_text[4:-4]).replace('ts','ʦ').replace('u','ɯ').replace('...','…')
+    text = text.replace(japanese_text,cleaned_text+' ',1)
+  text=text[:-1]
+  if re.match('[A-Za-zɯɹəɥ→↓↑]',text[-1]):
+    text += '.'
+  return text

text/symbols.py

@@ -0,0 +1,39 @@
+'''
+Defines the set of symbols used in text input to the model.
+'''
+
+'''# japanese_cleaners
+_pad        = '_'
+_punctuation = ',.!?-'
+_letters = 'AEINOQUabdefghijkmnoprstuvwyzʃʧ↓↑ '
+'''
+
+# japanese_cleaners2
+_pad        = '_'
+_punctuation = ',.!?-~…'
+_letters = 'AEINOQUabdefghijkmnoprstuvwyzʃʧʦ↓↑ '
+
+
+'''# korean_cleaners
+_pad        = '_'
+_punctuation = ',.!?…~'
+_letters = 'ㄱㄴㄷㄹㅁㅂㅅㅇㅈㅊㅋㅌㅍㅎㄲㄸㅃㅆㅉㅏㅓㅗㅜㅡㅣㅐㅔ '
+'''
+
+'''# chinese_cleaners
+_pad        = '_'
+_punctuation = '，。！？—…'
+_letters = 'ㄅㄆㄇㄈㄉㄊㄋㄌㄍㄎㄏㄐㄑㄒㄓㄔㄕㄖㄗㄘㄙㄚㄛㄜㄝㄞㄟㄠㄡㄢㄣㄤㄥㄦㄧㄨㄩˉˊˇˋ˙ '
+'''
+
+'''# zh_ja_mixture_cleaners
+_pad        = '_'
+_punctuation = ',.!?-~…'
+_letters = 'AEINOQUabdefghijklmnoprstuvwyzʃʧʦɯɹəɥ⁼ʰ`→↓↑ '
+'''
+
+# Export all symbols:
+symbols = [_pad] + list(_punctuation) + list(_letters)
+
+# Special symbol ids
+SPACE_ID = symbols.index(" ")