2023年7月11日 13:47:51go评论98阅读模式

英文:

Regex expression to validate ONLY hindi (devnagri) letters in PYTHON

问题

我正在尝试构建一个分词器，它接收印地语句子并删除其中的其他脚本。

这是我编写的代码和附带的输出。

我尝试了这个

import re
s = "विश्व कप sdsd 12वें संस्करण जनवरी12 or 12जनवरी or जनवरी22"
combining_marks = '[\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u08D3-\u08E1\u08E3-\u0903\u093A-\u093C\u093E-\u094F\u0951-\u0957\u0962\u0963\u0981-\u0983\u09BC\u09BE-\u09C4\u09C7\u09C8\u09CB-\u09CD\u09D7\u09E2\u09E3\u09FE\u0A01-\u0A03\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81-\u0A83\u0ABC\u0ABE-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AE2\u0AE3\u0AFA-\u0AFF\u0B01-\u0B03\u0B3C\u0B3E-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B62\u0B63\u0B82\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD7\u0C00-\u0C04\u0C3E-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81-\u0C83\u0CBC\u0CBE-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CE2\u0CE3\u0D00-\u0D03\u0D3B\u0D3C\u0D3E-\u0D44\u0D46-\u0D48\u0D4A-\u0D4D\u0D57\u0D62\u0D63\u0D82\u0D83\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DF2\u0DF3\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECD\u0F18\u0F19\u0F35\u0F37\u0F39\u0F3E\u0F3F\u0F71-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102B-\u103E\u1056-\u1059\u105E-\u1060\u1062-\u1064\u1067-\u106D\u1071-\u1074\u1082-\u108D\u108F\u109A-\u109D\u135D-\u135F\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17B4-\u17D3\u17DD\u180B-\u180D\u1885\u1886\u18A9\u1920-\u192B\u1930-\u193B\u1A17-\u1A1B\u1A55-\u1A5E\u1A60-\u1A7C\u1A7F\u1AB0-\u1ABE\u1B00-\u1B04\u1B34-\u1B44\u1B6B-\u1B73\u1B80-\u1B82\u1BA1-\u1BAD\u1BE6-\u1BF3\u1C24-\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE8\u1CED\u1CF4\u1CF7-\u1CF9\u1DC0-\u1DF9\u1DFB-\u1DFF\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302F\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA823-\uA827\uA880\uA881\uA8B4-\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA953\uA980-\uA983\uA9B3-\uA9C0\uA9E5\uAA29-\uAA36\uAA43\uAA4C\uAA4D\uAA7B-\uAA7D\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEB-\uAAEF\uAAF5\uAAF6\uABE3-\uABEA\uABEC\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\U000101FD\U000102E0\U00010376-\U0001037A\U00010A01-\U00010A03\U00010A05\U00010A06\U00010A0C-\U00010A0F\U

<details>
<summary>英文:</summary>

I am trying to build a tokenizer which takes in Hindi sentence and removes any other scripts present in it.

This is my code that i have written and the output is attached as well.


I tried this

import re
s = "विश्व कप sdsd 12वें संस्करण जनवरी12 or 12जनवरी or जनवरी22"
combining_marks = '[\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u08D3-\u08E1\u08E3-\u0903\u093A-\u093C\u093E-\u094F\u0951-\u0957\u0962\u0963\u0981-\u0983\u09BC\u09BE-\u09C4\u09C7\u09C8\u09CB-\u09CD\u09D7\u09E2\u09E3\u09FE\u0A01-\u0A03\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81-\u0A83\u0ABC\u0ABE-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AE2\u0AE3\u0AFA-\u0AFF\u0B01-\u0B03\u0B3C\u0B3E-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B62\u0B63\u0B82\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD7\u0C00-\u0C04\u0C3E-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81-\u0C83\u0CBC\u0CBE-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CE2\u0CE3\u0D00-\u0D03\u0D3B\u0D3C\u0D3E-\u0D44\u0D46-\u0D48\u0D4A-\u0D4D\u0D57\u0D62\u0D63\u0D82\u0D83\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DF2\u0DF3\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECD\u0F18\u0F19\u0F35\u0F37\u0F39\u0F3E\u0F3F\u0F71-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102B-\u103E\u1056-\u1059\u105E-\u1060\u1062-\u1064\u1067-\u106D\u1071-\u1074\u1082-\u108D\u108F\u109A-\u109D\u135D-\u135F\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17B4-\u17D3\u17DD\u180B-\u180D\u1885\u1886\u18A9\u1920-\u192B\u1930-\u193B\u1A17-\u1A1B\u1A55-\u1A5E\u1A60-\u1A7C\u1A7F\u1AB0-\u1ABE\u1B00-\u1B04\u1B34-\u1B44\u1B6B-\u1B73\u1B80-\u1B82\u1BA1-\u1BAD\u1BE6-\u1BF3\u1C24-\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE8\u1CED\u1CF4\u1CF7-\u1CF9\u1DC0-\u1DF9\u1DFB-\u1DFF\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302F\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA823-\uA827\uA880\uA881\uA8B4-\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA953\uA980-\uA983\uA9B3-\uA9C0\uA9E5\uAA29-\uAA36\uAA43\uAA4C\uAA4D\uAA7B-\uAA7D\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEB-\uAAEF\uAAF5\uAAF6\uABE3-\uABEA\uABEC\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\U000101FD\U000102E0\U00010376-\U0001037A\U00010A01-\U00010A03\U00010A05\U00010A06\U00010A0C-\U00010A0F\U00010A38-\U00010A3A\U00010A3F\U00010AE5\U00010AE6\U00010D24-\U00010D27\U00010F46-\U00010F50\U00011000-\U00011002\U00011038-\U00011046\U0001107F-\U00011082\U000110B0-\U000110BA\U00011100-\U00011102\U00011127-\U00011134\U00011145\U00011146\U00011173\U00011180-\U00011182\U000111B3-\U000111C0\U000111C9-\U000111CC\U0001122C-\U00011237\U0001123E\U000112DF-\U000112EA\U00011300-\U00011303\U0001133B\U0001133C\U0001133E-\U00011344\U00011347\U00011348\U0001134B-\U0001134D\U00011357\U00011362\U00011363\U00011366-\U0001136C\U00011370-\U00011374\U00011435-\U00011446\U0001145E\U000114B0-\U000114C3\U000115AF-\U000115B5\U000115B8-\U000115C0\U000115DC\U000115DD\U00011630-\U00011640\U000116AB-\U000116B7\U0001171D-\U0001172B\U0001182C-\U0001183A\U000119D1-\U000119D7\U000119DA-\U000119E0\U000119E4\U00011A01-\U00011A0A\U00011A33-\U00011A39\U00011A3B-\U00011A3E\U00011A47\U00011A51-\U00011A5B\U00011A8A-\U00011A99\U00011C2F-\U00011C36\U00011C38-\U00011C3F\U00011C92-\U00011CA7\U00011CA9-\U00011CB6\U00011D31-\U00011D36\U00011D3A\U00011D3C\U00011D3D\U00011D3F-\U00011D45\U00011D47\U00011D8A-\U00011D8E\U00011D90\U00011D91\U00011D93-\U00011D97\U00011EF3-\U00011EF6\U00016AF0-\U00016AF4\U00016B30-\U00016B36\U00016F4F\U00016F51-\U00016F87\U00016F8F-\U00016F92\U0001BC9D\U0001BC9E\U0001D165-\U0001D169\U0001D16D-\U0001D172\U0001D17B-\U0001D182\U0001D185-\U0001D18B\U0001D1AA-\U0001D1AD\U0001D242-\U0001D244\U0001DA00-\U0001DA36\U0001DA3B-\U0001DA6C\U0001DA75\U0001DA84\U0001DA9B-\U0001DA9F\U0001DAA1-\U0001DAAF\U0001E000-\U0001E006\U0001E008-\U0001E018\U0001E01B-\U0001E021\U0001E023\U0001E024\U0001E026-\U0001E02A\U0001E130-\U0001E136\U0001E2EC-\U0001E2EF\U0001E8D0-\U0001E8D6\U0001E944-\U0001E94A\U000E0100-\U000E01EF]'
mo = re.compile(r"\w+|\S".format(combining_marks))
print(mo.findall(s))


----------
**Output :-** 
[&#39;व&#39;, &#39;ि&#39;, &#39;श&#39;, &#39;्&#39;, &#39;व&#39;, &#39;कप&#39;, &#39;sdsd&#39;, &#39;12व&#39;, &#39;े&#39;, &#39;ं&#39;, &#39;स&#39;, &#39;ं&#39;, &#39;स&#39;, &#39;्&#39;, &#39;करण&#39;, &#39;जनवर&#39;, &#39;ी&#39;, &#39;1&#39;, &#39;2&#39;, &#39;or&#39;, &#39;12&#39;, &#39;जनवर&#39;, &#39;ी&#39;, &#39;or&#39;, &#39;जनवर&#39;, &#39;ी&#39;, &#39;22&#39;]
as you can see that it even prints *&#39;sdsd&#39; ,&#39;or* which is english and it somehow prints the &quot;Maatraye&quot; in Hindi or &#39;ि   &#39;्&#39;  &#39;ी&#39;   &#39;ं&#39; separately, i want them to be together like they are in the input i have given to the model.
</details>
# 答案1
**得分**: 2
以下是已翻译的内容：
```python
standalone = r'[\u0904-\u0939\u0964-\u097F]'
modifiers = r'[\u0900-\u0903\u093A-\u094F]'
mo = re.compile(f'{standalone}{modifiers}*')

[\u0904-\u0939\u093d-\u093d\u0950-\u0950\u0958-\u0961\u0964-\u097f\ua8f2-\ua8fe\U00011b00-\U00011b09\u1cd3-\u1cd3\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5-\u1cf6\u1cfa-\u1cfa][\u0900-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962-\u0963\ua8e0-\ua8f1\ua8ff-\ua8ff\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced-\u1ced\u1cf4-\u1cf4\u1cf7-\u1cf9]*

(?:[\u0904-\u0939\u093d-\u093d\u0950-\u0950\u0958-\u0961\u0964-\u097f\ua8f2-\ua8fe\U00011b00-\U00011b09\u1cd3-\u1cd3\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5-\u1cf6\u1cfa-\u1cfa][\u0900-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962-\u0963\ua8e0-\ua8f1\ua8ff-\ua8ff\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced-\u1ced\u1cf4-\u1cf4\u1cf7-\u1cf9]*)+

以上是您要求的部分翻译。

英文:

Try this as a start:

standalone = r&#39;[\u0904-\u0939\u0964-\u097F]&#39;
modifiers = r&#39;[\u0900-\u0903\u093A-\u094F]&#39;
mo = re.compile(f&#39;{standalone}{modifiers}*&#39;)

Which means, make sure there is one standalone character, and any number of following modifier characters. I only went through the Devanagari block, and hopefully got them all correctly; if you need extended blocks, you can see what I did and do the same thing, just add the corresponding ranges into standalone or composing, as appropriate.

EDIT:

Here's a better regexp for Devanagari letters with modifying marks:

[\u0904-\u0939\u093d-\u093d\u0950-\u0950\u0958-\u0961\u0964-\u097f\ua8f2-\ua8fe\U00011b00-\U00011b09\u1cd3-\u1cd3\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5-\u1cf6\u1cfa-\u1cfa][\u0900-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962-\u0963\ua8e0-\ua8f1\ua8ff-\ua8ff\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced-\u1ced\u1cf4-\u1cf4\u1cf7-\u1cf9]*

Regex101 demo. I created it using this code:

import unicodedata
from itertools import groupby
blocks = [
(0x0900, 0x097F),   # Devanagari
(0xA8E0, 0xA8FF),   # Devanagari Extended
(0x11B00, 0x11B09), # Devanagari Extended-A
(0x1CD0, 0x1CFA),   # Vedic Extensions
]
chars = {
False: [],
True: [],
}
# Sort the characters into standalone ones and modifiers
for start, end in blocks:
for o in range(start, end + 1):
is_combining = unicodedata.category(chr(o))[0] == &quot;M&quot;
chars[is_combining].append(o)
def format_char(o):
# Format each character as a 16-bit or 32-bit Unicode literal
return rf&quot;\u{o:04x}&quot; if o &lt;= 0xFFFF else rf&quot;\U{o:08x}&quot;
# group each consecutive sublist and create a range    
ranges = {
is_combining: &#39;&#39;.join(
fr&quot;{format_char(run[0][1])}-{format_char(run[-1][1])}&quot;
for run in [
list(group)
for _, group in groupby(enumerate(char_list), lambda p: p[0] - p[1])
]
)
for is_combining, char_list in chars.items()
}
# one standalone character followed by any number of modifier characters
pattern = f&quot;[{ranges[False]}][{ranges[True]}]*&quot;
print(pattern)

This answer understood the question as "each individual Devanagari letter". If you want to get words, enclode the given regexps in (?:...)+:

(?:[\u0904-\u0939\u093d-\u093d\u0950-\u0950\u0958-\u0961\u0964-\u097f\ua8f2-\ua8fe\U00011b00-\U00011b09\u1cd3-\u1cd3\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5-\u1cf6\u1cfa-\u1cfa][\u0900-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962-\u0963\ua8e0-\ua8f1\ua8ff-\ua8ff\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced-\u1ced\u1cf4-\u1cf4\u1cf7-\u1cf9]*)+

Regex101 demo

答案2

得分: 0

我看到你在引用这个SO答案。通过稍微修改一下（去掉\d+），你可以得到你想要的输出（只有印地语单词），如下所示，

代码:

mo = re.compile(r&#39;(?:(?![A-Za-z])[^\W\d_]{}*)+&#39;.format(combining_marks))
print(mo.findall(s))

输出:

[&#39;विश्व&#39;, &#39;कप&#39;, &#39;वें&#39;, &#39;संस्करण&#39;, &#39;जनवरी&#39;, &#39;जनवरी&#39;, &#39;जनवरी&#39;]

英文:

I see you are referring to this SO answer. With a slight change to that(by removing \d+), you can get your desired output(only Hindi words) as shown below,

Code:

mo = re.compile(r&#39;(?:(?![A-Za-z])[^\W\d_]{}*)+&#39;.format(combining_marks))
print(mo.findall(s))

Output:

[&#39;विश्व&#39;, &#39;कप&#39;, &#39;वें&#39;, &#39;संस्करण&#39;, &#39;जनवरी&#39;, &#39;जनवरी&#39;, &#39;जनवरी&#39;]

通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。

正则表达式来验证PYTHON中仅包含印地语（Devanagri）字母：

问题

答案2

如何在Google Colab中从Google驱动器上的.py文件中导入一个类/函数

Given two arrays `a` and `b`, find all pairs `(i, j)`such that `i <= j` and `a[i] – b[j] = a[j] – b[i]`

在Pandas中，按另一列对数据进行分组，计算行之间的百分比变化。

拆分列名称不能被重命名

What's the correct way to type hint an empty list as a literal in python?

如何在Highcharts Gantt中更改本地化的星期名称

如何在同一个流中使用多个过滤器和映射函数？

如何使用Map/Set来将代码优化到O(n)？

.NET MAUI Android在GitHub Actions上构建失败，错误代码为1。

如何在Playwright视觉比较中屏蔽多个定位器？

在C++中，可以使用可变模板参数来检索类型的内部类型。

selenium.common.exceptions.StaleElementReferenceException: Message: stale element reference: stale element not found

Creating and opening a URL to log in to Website via Basic Auth with Robot Framework/Selenium (Python)

AG Grid 在上下文菜单中以大文本形式打开

发表评论