[mini.comment] Does not uncomment C's /* syntax correctly

[ldelossa]

Hey there.

Wondering if this is a fixable issue with mini.comments.

I work on a C codebase which uses the '/* */' comment syntax.

It appears that mini.comment can create comments correctly, but once the comment is inserted, it doesn't understand how to uncomment it, and instead adds another comment in the // comment syntax.

I've uploaded a screencap to explain.

I read thru the help but nothing stood out to me on how to fix this.

Screen.Recording.2024-12-06.at.8.15.09.AM.mov

[echasnovski]

'mini.comment' uses 'commentstring' option to determine comment structure. It is taken either from local tree-sitter language (useful in, for example, markdown code blocks) or buffer's option value. There is also a config.options.custom_commentstring to programmatically override in some complex cases (like JSX files).

That said, I can not reproduce this. So:

• What Neovim version are you using?
• What does executing :=vim.bo.commentstring (buffer-local 'commentstring' value) show?
• Do you have config.option.custom_commentstring defined? You can check it with :=MiniComment.config.option.custom_commentstring (should be nil if nothing is defined).
• Do you have 'comment' tree-sitter parser installed? If you are using 'nvim-treesitter/nvim-treesitter', you can check it with :TSInstallInfo.

[ldelossa]

Thank you @echasnovski

Your hint about commentstring helped me find the issue.

I set comment string depending on particular repositories. I had an autocommand which must have been conflicting with mini.comment. I removed this and all is well.

Thanks again.