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| # Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved. | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| import re | |
| import string | |
| from pypinyin.constants import SUPPORT_UCS4 | |
| # 全角半角转换 | |
| # 英文字符全角 -> 半角映射表 (num: 52) | |
| F2H_ASCII_LETTERS = { | |
| ord(char) + 65248: ord(char) | |
| for char in string.ascii_letters | |
| } | |
| # 英文字符半角 -> 全角映射表 | |
| H2F_ASCII_LETTERS = {value: key for key, value in F2H_ASCII_LETTERS.items()} | |
| # 数字字符全角 -> 半角映射表 (num: 10) | |
| F2H_DIGITS = {ord(char) + 65248: ord(char) for char in string.digits} | |
| # 数字字符半角 -> 全角映射表 | |
| H2F_DIGITS = {value: key for key, value in F2H_DIGITS.items()} | |
| # 标点符号全角 -> 半角映射表 (num: 32) | |
| F2H_PUNCTUATIONS = {ord(char) + 65248: ord(char) for char in string.punctuation} | |
| # 标点符号半角 -> 全角映射表 | |
| H2F_PUNCTUATIONS = {value: key for key, value in F2H_PUNCTUATIONS.items()} | |
| # 空格 (num: 1) | |
| F2H_SPACE = {'\u3000': ' '} | |
| H2F_SPACE = {' ': '\u3000'} | |
| # 非"有拼音的汉字"的字符串，可用于NSW提取 | |
| if SUPPORT_UCS4: | |
| RE_NSW = re.compile(r'(?:[^' | |
| r'\u3007' # 〇 | |
| r'\u3400-\u4dbf' # CJK扩展A:[3400-4DBF] | |
| r'\u4e00-\u9fff' # CJK基本:[4E00-9FFF] | |
| r'\uf900-\ufaff' # CJK兼容:[F900-FAFF] | |
| r'\U00020000-\U0002A6DF' # CJK扩展B:[20000-2A6DF] | |
| r'\U0002A703-\U0002B73F' # CJK扩展C:[2A700-2B73F] | |
| r'\U0002B740-\U0002B81D' # CJK扩展D:[2B740-2B81D] | |
| r'\U0002F80A-\U0002FA1F' # CJK兼容扩展:[2F800-2FA1F] | |
| r'])+') | |
| else: | |
| RE_NSW = re.compile( # pragma: no cover | |
| r'(?:[^' | |
| r'\u3007' # 〇 | |
| r'\u3400-\u4dbf' # CJK扩展A:[3400-4DBF] | |
| r'\u4e00-\u9fff' # CJK基本:[4E00-9FFF] | |
| r'\uf900-\ufaff' # CJK兼容:[F900-FAFF] | |
| r'])+') |