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feat(diagnostic): allow 'prefix' option to return highlight

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Extend the 'prefix' option for `open_float` to also provide an optional
highlight group for the prefix string.
This commit is contained in:
Gregory Anders
2021-11-15 08:55:31 -07:00
parent 8f984dc1f2
commit cc48837622
3 changed files with 52 additions and 27 deletions
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34
runtime/doc/diagnostic.txt
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@@ -384,17 +384,24 @@ config({opts}, {namespace}) *vim.diagnostic.config()*
a diagnostic as input and returns a
string. The return value is the text used
to display the diagnostic.
• prefix: (function or string) Prefix each
diagnostic in the floating window. If a
function, it must have the signature
(diagnostic, i, total) -> string, where
{i} is the index of the diagnostic being
evaluated and {total} is the total number
of diagnostics displayed in the window.
The returned string is prepended to each
diagnostic in the window. Otherwise, if
• prefix: (function, string, or table)
Prefix each diagnostic in the floating
window. If a function, it must have the
signature (diagnostic, i, total) ->
(string, string), where {i} is the index
of the diagnostic being evaluated and
{total} is the total number of
diagnostics displayed in the window. The
function should return a string which is
prepended to each diagnostic in the
window as well as an (optional) highlight
group which will be used to highlight the
prefix. If {prefix} is a table, it is
interpreted as a [text, hl_group] tuple
as in |nvim_echo()|; otherwise, if
{prefix} is a string, it is prepended to
each diagnostic.
each diagnostic in the window with no
highlight.
• update_in_insert: (default false) Update
diagnostics in Insert mode (if false,
@@ -625,9 +632,10 @@ open_float({bufnr}, {opts}) *vim.diagnostic.open_float()*
return value is the text used to display the
diagnostic. Overrides the setting from
|vim.diagnostic.config()|.
• prefix: (function or string) Prefix each
diagnostic in the floating window. Overrides
the setting from |vim.diagnostic.config()|.
• prefix: (function, string, or table) Prefix
each diagnostic in the floating window.
Overrides the setting from
|vim.diagnostic.config()|.
Return: ~
tuple ({float_bufnr}, {win_id})