74 lines
2.2 KiB
Python
74 lines
2.2 KiB
Python
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# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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import re
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from pypinyin import Style
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from pypinyin.contrib._tone_rule import right_mark_index
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_re_number = re.compile(r'\d')
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class NeutralToneWith5Mixin(object):
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"""声调使用数字表示的相关拼音风格下的结果使用 5 标识轻声。
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使用方法::
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from pypinyin import lazy_pinyin, Style
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from pypinyin.contrib.neutral_tone import NeutralToneWith5Mixin
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from pypinyin.converter import DefaultConverter
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from pypinyin.core import Pinyin
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# 原来的结果中不会标识轻声
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print(lazy_pinyin('好了', style=Style.TONE2))
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# 输出: ['ha3o', 'le']
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class MyConverter(NeutralToneWith5Mixin, DefaultConverter):
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pass
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my_pinyin = Pinyin(MyConverter())
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pinyin = my_pinyin.pinyin
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lazy_pinyin = my_pinyin.lazy_pinyin
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# 新的结果中使用 ``5`` 标识轻声
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print(lazy_pinyin('好了', style=Style.TONE2))
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# 输出: ['ha3o', 'le5']
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print(pinyin('好了', style=Style.TONE2))
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# 输出：[['ha3o'], ['le5']]
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"""
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NUMBER_TONE = (Style.TONE2, Style.TONE3, Style.FINALS_TONE2,
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Style.FINALS_TONE3)
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NUMBER_AT_END = (Style.TONE3, Style.FINALS_TONE3)
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def post_convert_style(self, han, orig_pinyin, converted_pinyin,
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style, strict, **kwargs):
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pre_data = super(NeutralToneWith5Mixin, self).post_convert_style(
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han, orig_pinyin, converted_pinyin, style, strict, **kwargs)
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if style not in self.NUMBER_TONE:
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return pre_data
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if pre_data is not None:
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converted_pinyin = pre_data
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if not converted_pinyin: # 空字符串
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return converted_pinyin
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# 有声调，跳过
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if _re_number.search(converted_pinyin):
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return converted_pinyin
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if style in self.NUMBER_AT_END:
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return '{}5'.format(converted_pinyin)
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# 找到应该在哪个字母上标声调
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mark_index = right_mark_index(converted_pinyin)
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before = converted_pinyin[:mark_index + 1]
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after = converted_pinyin[mark_index + 1:]
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return '{}5{}'.format(before, after)
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