Is there a way to disable diagnostics for a specific case?

[imai-makoto]

Is there a way to disable diagnostics for lines that begin with a specific letter or string?
I would like to do so. I have looked for a way to disable the error, but have not found one.

The software I am using recognizes lines in a Lua file that begin with a specified character as a split point in the file. This allows multiple short files to be combined into one.

These lines do not actually affect the execution of the code, but they are displayed as error diagnostics in the editor.
If you were told to ignore them, that would be fine, but more than half of the files in the project folder have errors, making it difficult to check for real errors.

So we would like to disable the error display if possible.
Could you please tell me how to do that?
Thank you very much. 🙇‍♂️🙏

[carsakiller]

You might be able to use runtime.special to treat the special symbol as another that doesn't have negative effects. Maybe it could be treated as a comment?

[carsakiller]

No problem! Give runtime.special a try. You may be able to just treat the symbol as something that doesn't interfere.

[imai-makoto]

I tried runtime.special, but thought maybe it wasn't for my purposes. 😣💦

Maybe I just don't understand how to use it. . .

I wish I could have made @ recognizable as -- .

[imai-makoto]

I have tried everything, but I haven't found a solution, so I will use @Diagnost until I find a solution.

Also, apologies if I'm wrong, but you can only set one , so if there are multiple errors on the same line, it cannot be processed. So it would be useful if I could set more than one.
I used a quick fix and some of the errors disappeared so I could use it. However, I applied it without understanding it, so I don't know why the errors disappeared.

[carsakiller]

I can't think of a way to make it work, either. If you are able to modify the tool that is splitting files, it would probably be best if the symbol were in a comment to prevent syntax error warnings.

You should be able to list multiple diagnostics to disable:
---@diagnostic disable-next-line: param-type-mismatch, redundant-parameter

[imai-makoto]

Thank you, I see that you were able to set up multiple diagnostics.

I am not able to make changes to my tools so I will use this.

Thank you very much for teaching me. 😌🙏.

[carsakiller]

You're welcome, good luck!

[Jipok]

@carsakiller where can i read more about ---@diagnostic format?
I have files with dsl over lua. i need to somehow disable diagnostics either for the whole file or for some section.

Unexpected <exp> .Lua Syntax Check.(exp-in-action)

[tomlau10]

The annotation syntax is here: https://luals.github.io/wiki/annotations/#diagnostic

Seems that ---@disagnostic disable will only disable all general warnings but not syntax errors. 😕
As you have already found out, hovering over the error lines you can see the error names, which are exp-in-action and unknown-symbol in this specific case.
So you can have:

---@diagnostic disable: exp-in-action, unknown-symbol
some.domain.com -> 0
    | WidgetBotName = "a"
    | WidgetBotName = "b"
---@diagnostic enable
--- with the above line all disabled diagnostic will enable again

[Jipok]

THANKS!