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PaddleSpeech/third_party/python-pinyin/pypinyin/contrib/_tone_rule.py

45 lines
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from typing import Optional
from typing import Text
def right_mark_index(pinyin_no_tone: Text) -> Optional[int]:
"""
标调位置
ɑ 不放过,
  没 ɑ 找 o、e
  ɑ、o、e、i、u、ü
  标调就按这顺序;
  i、u 若是连在一起,
  谁在后面就标谁。
有ɑ不放过(有ɑ一定要标在ɑ上);
ɑ找oe没有ɑ的时候标在o上,如果没有o则标在e上;
iu并列标在后iu, ui的情况,标在后面的字母上,比如说iu应该标u,ui应该标i
单个韵母不用说(只能标在单韵母上)
http://www.hwjyw.com/resource/content/2010/06/04/8183.shtml
https://www.zhihu.com/question/23655297
https://github.com/mozillazg/python-pinyin/issues/160
http://www.pinyin.info/rules/where.html
"""
# 有 ɑ 不放过, 没 ɑ 找 o、e
for c in ['a', 'o', 'e']:
if c in pinyin_no_tone:
return pinyin_no_tone.index(c)
# i、u 若是连在一起,谁在后面就标谁
for c in ['iu', 'ui']:
if c in pinyin_no_tone:
return pinyin_no_tone.index(c) + 1
# ɑ、o、e、i、u、ü
for c in ['i', 'u', 'v', 'ü']:
if c in pinyin_no_tone:
return pinyin_no_tone.index(c)
# n, m, ê
for c in ['n', 'm', 'ê']:
if c in pinyin_no_tone:
return pinyin_no_tone.index(c)