C++ Core Guidelines Markdown explicit anchor links not working (updated the 20/05/2024)

[Lob2018]

Thanks again for your document C++ Core Guidelines.

Markdown links for C++ Core Guidelines Markdown don't work because anchor test must always be lowercase and not contain spaces, as describe in this article.

I used Sublime Text to find and replace by regular expression with these values, it looks correct but I haven't checked everything (updated the 20/05/2024):
Find: name="([^"]*)"
Replace: name="\L\1\E"
and
Find: ]\(#([^)]*)\)
Replace: ](#\L\1\E)

Attached the .diff, the modified and the old Markdown files :
CppCoreGuidelines - old.md
CppCoreGuidelines.diff.txt
CppCoreGuidelines.md

[Lob2018]

A small Python program that checks that links, internal links, and anchors, are lowercase without spaces (it could be used as a basis with GitHub Actions in the future see #2210 (comment)); I fixed the errors (see the .diff).

The CppCoreGuidelines.md file must be in the same folder of ChecksLinksAndAnchorsFromCppCoreGuidelinesInCurrentDirectory.py.
Error examples:

fixed :
Error on line 13828: the href link 'Rper-reason' is not in lowercase.
Error on line 13829: the href link 'Rper-Knuth' is not in lowercase.
Error on line 22113: the href link 'S-abstract' is not in lowercase.
and by the way (not fixed) :
Error on line 2931: the internal link '???' is not in lowercase.
Error on line 3673: the internal link '???' is not in lowercase.
Error on line 3781: the internal link '???' is not in lowercase.
Error on line 3796: the internal link '???' is not in lowercase.
Error on line 3796: the internal link '???' is not in lowercase.
Error on line 5606: the internal link '???' is not in lowercase.
Error on line 8184: the internal link '???' is not in lowercase.
Error on line 11168: the internal link '???' is not in lowercase.
Error on line 15607: the internal link '???' is not in lowercase.
Error on line 20346: the internal link '???' is not in lowercase.
Error on line 20503: the internal link '???' is not in lowercase.
Error on line 20504: the internal link '???' is not in lowercase.
Error on line 20527: the internal link '???' is not in lowercase.
Error on line 20528: the internal link '???' is not in lowercase.
Error on line 20529: the internal link '???' is not in lowercase.
Error on line 20530: the internal link '???' is not in lowercase.
Error on line 20531: the internal link '???' is not in lowercase.
Error on line 20532: the internal link '???' is not in lowercase.

Attached, the Python program, the .diff, the old and the modified Markdown files :
ChecksLinksAndAnchorsFromCppCoreGuidelinesInCurrentDirectory.zip
CppCoreGuidelines.diff.txt
CppCoreGuidelines - old.md
With 50afe02 modification :
CppCoreGuidelines.md
(got a doubt for Rh-public l.376 : (e.g., for C.134 it is "Rh-public"))