Adds a provider for diagnostics. Mostly taken from vim.diagnostic.show_float, with some tweaks.
Options from vim.diagnostic.config are used for float opts like scope and severity_sort.
This required a change to open_floating_preview to work - previously if a provider returned a bufnr only, open_floating_preview would read in all the lines from the buffer and then set them again using nvim_buf_set_lines. This is both unnecessary and causes problems, such as breaking applied highlights in the case of diagnostics. open_floating_preview will now only set the buffer's lines if they are explicitly provided through the contents parameter.
Adds a provider for diagnostics. Mostly taken from
vim.diagnostic.show_float, with some tweaks.Options from
vim.diagnostic.configare used for float opts likescopeandseverity_sort.This required a change to
open_floating_previewto work - previously if a provider returned a bufnr only,open_floating_previewwould read in all the lines from the buffer and then set them again usingnvim_buf_set_lines. This is both unnecessary and causes problems, such as breaking applied highlights in the case of diagnostics.open_floating_previewwill now only set the buffer's lines if they are explicitly provided through thecontentsparameter.Resolves #34