feat(ui): allow to get the highlight namespace (rebase of #24390) #25455
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| @@ -979,6 +979,19 @@ nvim_get_hl_id_by_name({name}) *nvim_get_hl_id_by_name()* | |||
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| similar to |hlID()|, but allocates a new ID if not present. | |||
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| nvim_get_hl_ns({*opts}) *nvim_get_hl_ns()* | |||
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In #24390 (comment) there was an open question about naming this nvim_get_ns.
Why do we need highlight-specific namespace functions?
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Strictly speaking, we didn't "need" highlight namespaces to begin with, we added them because it was something we wanted (it is a little fun).
The more complex involved answer is, if we had window-local options which actually worked (with a mode where they're actually being local to the window, which I plan to work on "soon"), then hl_ns could just have been yet another global-local option. But in the meanwhile, having API functions ilke nvim_set/get_hl_ns to get and set the current highlight namespace seems like the best option. I don't see how they generalize to other uses of namespaces, and thus removing "hl" out of the the name would only hurt discoverability and understanding of code.
closes #24390