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import re |
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import cn2an |
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import opencc |
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converter = opencc.OpenCC('chinese_dialect_lexicons/jyutjyu') |
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_latin_to_ipa = [(re.compile('%s' % x[0]), x[1]) for x in [ |
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('A', 'ei˥'), |
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('B', 'biː˥'), |
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('C', 'siː˥'), |
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('D', 'tiː˥'), |
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('E', 'iː˥'), |
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('F', 'e˥fuː˨˩'), |
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('G', 'tsiː˥'), |
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('H', 'ɪk̚˥tsʰyː˨˩'), |
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('I', 'ɐi˥'), |
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('J', 'tsei˥'), |
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('K', 'kʰei˥'), |
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('L', 'e˥llou˨˩'), |
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('M', 'ɛːm˥'), |
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('N', 'ɛːn˥'), |
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('O', 'ou˥'), |
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('P', 'pʰiː˥'), |
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('Q', 'kʰiːu˥'), |
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('R', 'aː˥lou˨˩'), |
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('S', 'ɛː˥siː˨˩'), |
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('T', 'tʰiː˥'), |
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('U', 'juː˥'), |
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('V', 'wiː˥'), |
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('W', 'tʊk̚˥piː˥juː˥'), |
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('X', 'ɪk̚˥siː˨˩'), |
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('Y', 'waːi˥'), |
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('Z', 'iː˨sɛːt̚˥') |
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]] |
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def number_to_cantonese(text): |
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return re.sub(r'\d+(?:\.?\d+)?', lambda x: cn2an.an2cn(x.group()), text) |
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def latin_to_ipa(text): |
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for regex, replacement in _latin_to_ipa: |
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text = re.sub(regex, replacement, text) |
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return text |
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def cantonese_to_ipa(text): |
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text = number_to_cantonese(text.upper()) |
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text = converter.convert(text).replace('-','').replace('$',' ') |
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text = re.sub(r'[A-Z]', lambda x: latin_to_ipa(x.group())+' ', text) |
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text = re.sub(r'[、；：]', '，', text) |
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text = re.sub(r'\s*，\s*', ', ', text) |
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text = re.sub(r'\s*。\s*', '. ', text) |
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text = re.sub(r'\s*？\s*', '? ', text) |
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text = re.sub(r'\s*！\s*', '! ', text) |
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text = re.sub(r'\s*$', '', text) |
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return text |
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