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doc: clarify bufferline-custom-areas #900

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doc: clarify bufferline-custom-areas #900

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19 changes: 15 additions & 4 deletions doc/bufferline.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -1125,26 +1125,37 @@ to be shown in a list of tables. For example:
local info = #vim.diagnostic.get(0, {severity = seve.INFO})
local hint = #vim.diagnostic.get(0, {severity = seve.HINT})

table.insert(result, {text = "", fg = "#EC5241"})
table.insert(result, {text = "", fg = "#EFB839"})
table.insert(result, {text = "", fg = "#A3BA5E"})
table.insert(result, {text = "", fg = "#7EA9A7"})

if error ~= 0 then
table.insert(result, {text = "  " .. error, fg = "#EC5241"})
result[1].text = "  " .. error
end

if warning ~= 0 then
table.insert(result, {text = "  " .. warning, fg = "#EFB839"})
result[2].text = "  " .. warning
end

if hint ~= 0 then
table.insert(result, {text = "  " .. hint, fg = "#A3BA5E"})
result[3].text = "  " .. hint
end

if info ~= 0 then
table.insert(result, {text = "  " .. info, fg = "#7EA9A7"})
result[4].text = "  " .. info
end

return result
end,
}
<


This option will create a highlight groups for each table insert whether defined or not. For best experience,
define all of your highlights if you are conditionally displaying text, otherwise your text may appear
under unexpected highlight groups.

Please note that this function will be called a lot and should be as inexpensive as possible so it does
not block rendering the tabline.

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