Trying regular epxressions purported to match double quoted strings with backslash escapes

escaped_string.py

#!/usr/bin/env python3
"""
Trying regular epxressions purported to match double quoted strings with backslash escapes

Syntax changes made vs sources
- Changed capture groups to non-capture groups  () -> (?:)
- Removed escaping of double quotes             \" -> "
"""
import re


CANDIDATES = [
    # https://stackoverflow.com/questions/249791/regex-for-quoted-string-with-escaping-quotes
    (r'"(?:\\.|[^\"])*"',               'https://stackoverflow.com/a/1016356', None),
    (r'"(?:[^"\\]*(?:\\.[^"\\]*)*)"',   'https://stackoverflow.com/a/10786066', None),

    # https://stackoverflow.com/questions/5695240/php-regex-to-ignore-escaped-quotes-within-quotes
    (r'"(?:[^"\\]|\\.)*"',              'https://stackoverflow.com/a/5696141', 'good')
    (r'"(?:(?=[^"\\]+)|\\.)*"',         'https://stackoverflow.com/a/5696141', 'better'),
    (r'"[^"\\]*(?:\\.[^"\\]*)*"',       'https://stackoverflow.com/a/5696141', 'best'),

    # https://github.com/lark-parser/lark
    # _STRING_INNER     : /.*?/
    # _STRING_ESC_INNER : _STRING_INNER /(?<!\\)(\\\\)*?/
    # ESCAPED_STRING    : "\"" _STRING_ESC_INNER "\""
    (r'".*?(?<!\\)(?:\\\\)*?"',         'https://github.com/lark-parser/lark/blob/ebb15f75721a161feb293c4dcdc613c04539d9eb/lark/grammars/common.lark', None),
]

if __name__ == '__main__':
    for i, (expr, url) in enumerate(CANDIDATES):
        try:
            pattern = re.compile(expr, re.DOTALL)
        except re.error:
            print(i, expr)
            raise

        print(i, pattern.findall(r' "",  "\"",  "\\",  "\n" '))

$ ./escaped_string.py 
0 ['""', '"\\""', '"\\\\"', '"\\n"']
1 ['""', '"\\""', '"\\\\"', '"\\n"']
2 ['""', '"\\""', '"\\\\"', '"\\n"']
3 ['""', '"\\""', '"\\\\"', '"\\n"']
4 ['""', '"\\""', '"\\\\"', '"\\n"']
5 ['""', '"\\""', '"\\\\"', '"\\n"']