JSON parsing of Extended ASCII

[Felix Weilbach]

Hello,


I'm working on source code that has Extended ASCII characters inside 
comments in it. This is unfortunate because LSP-mode crashes if it 
encounters an invalid UTF-8 string. I know this mailing list is not 
about LSP-mode, but I could track down the issue to the function 
json_stringn() that gets called in lisp_to_json() inside json.c. Visual 
Studio Code can cope with these files fine and their LSP implementation 
has no problem with these files. Therefore I think Emacs should handle 
this situation as well. I want to find a solution to this problem and 
implement it. What do you think about this problem? Have you ideas for a 
solution? Should a potential solution be implemented inside Emacs or 
LSP-mode?

I think there could be implemented a function inside Emacs that tries to 
convert Extended ASCII to UTF-8 and then encodes it to JSON.


Kind regards

Felix Weilbach