glob.translate incorrectly treats ***

Bug report

Bug description:

While I could not find relevant manpage or other Unix standard, gitignore states:

Two consecutive asterisks ("**") in patterns matched against full pathname may have special meaning:

A leading "**" followed by a slash means match in all directories. For example, "**/foo" matches file or directory "foo" anywhere, the same as pattern "foo". "**/foo/bar" matches file or directory "bar" anywhere that is directly under directory "foo".

A trailing "/**" matches everything inside. For example, "abc/**" matches all files inside directory "abc", relative to the location of the .gitignore file, with infinite depth.

A slash followed by two consecutive asterisks then a slash matches zero or more directories. For example, "a/**/b" matches "a/b", "a/x/b", "a/x/y/b" and so on.

Other consecutive asterisks are considered regular asterisks and will match according to the previous rules.

My understanding of the last sentence is that a triple asterisk *** (and any longer) should be treated exactly the same as a single one *, but it is not the case. While close, and definitely neither a double asterisk nor a naive repetition of a single one, it has an incorrect quantifier. It is likely caused because the first * is neither surrounded by path separators, nor by string begin/end.

import glob;
print(glob.translate('*', include_hidden=True, recursive=True))
print(glob.translate('***', include_hidden=True, recursive=True))

Expected behavior:

(?s:[^/]+)\Z
(?s:[^/]+)\Z

Actual behavior:

(?s:[^/]+)\Z
(?s:[^/]*)\Z

CPython versions tested on:

3.13

Operating systems tested on:

Linux

Bắt đầu bằng cách chạy các ví dụ glob.translate được cung cấp và kiểm tra entry point của glob.translate. So sánh cách xử lý '' và '**' khi matching đệ quy, sau đó bổ sung coverage cho các biểu thức chính quy được kỳ vọng là giống hệt nhau và xác minh hành vi đã được báo cáo trên Python 3.13.