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feat: allow multiple hlgroups inside one column (#240)

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* feat: allow multiple hlgroups inside one column

* types: refactor formatting of highlight types

* types: LuaLS can't infer type information from unpack

---------

Co-authored-by: Steven Arcangeli <506791+stevearc@users.noreply.github.com>
This commit is contained in:
Shihua Zeng 2023-12-08 13:36:52 +08:00 • committed by GitHub
parent cd0c2d1f0a
commit a173b5776c
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 21 additions and 3 deletions
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19
lua/oil/util.lua
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@ -294,7 +294,8 @@ M.render_table = function(lines, col_width)
for i, chunk in ipairs(cols) do
local text, hl
if type(chunk) == "table" then
text, hl = unpack(chunk)
text = chunk[1]
hl = chunk[2]
else
text = chunk
end
@ -302,7 +303,21 @@ M.render_table = function(lines, col_width)
table.insert(pieces, text)
local col_end = col + text:len() + 1
if hl then
table.insert(highlights, { hl, #str_lines, col, col_end })
if type(hl) == "table" then
-- hl has the form { [1]: hl_name, [2]: col_start, [3]: col_end }[]
-- Notice that col_start and col_end are relative position inside
-- that col, so we need to add the offset to them
for _, sub_hl in ipairs(hl) do
table.insert(highlights, {
sub_hl[1],
#str_lines,
col + sub_hl[2],
col + sub_hl[3],
})
end
else
table.insert(highlights, { hl, #str_lines, col, col_end })
end
end
col = col_end
end