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-rw-r--r--runtime/lua/vim/shared.lua31
-rw-r--r--test/functional/lua/vim_spec.lua4
2 files changed, 17 insertions, 18 deletions
diff --git a/runtime/lua/vim/shared.lua b/runtime/lua/vim/shared.lua
index 1a96ef9bc4..5f4ea8822b 100644
--- a/runtime/lua/vim/shared.lua
+++ b/runtime/lua/vim/shared.lua
@@ -100,10 +100,9 @@ function vim.gsplit(s, sep, opts)
local start = 1
local done = false
- -- For `trimempty`:
+ -- For `trimempty`: queue of collected segments, to be emitted at next pass.
+ local segs = {}
local empty_start = true -- Only empty segments seen so far.
- local empty_segs = 0 -- Empty segments found between non-empty segments.
- local nonemptyseg = nil
local function _pass(i, j, ...)
if i then
@@ -118,14 +117,9 @@ function vim.gsplit(s, sep, opts)
end
return function()
- if trimempty and empty_segs > 0 then
- -- trimempty: Pop the collected empty segments.
- empty_segs = empty_segs - 1
- return ''
- elseif trimempty and nonemptyseg then
- local seg = nonemptyseg
- nonemptyseg = nil
- return seg
+ if trimempty and #segs > 0 then
+ -- trimempty: Pop the collected segments.
+ return table.remove(segs)
elseif done or (s == '' and sep == '') then
return nil
elseif sep == '' then
@@ -138,21 +132,24 @@ function vim.gsplit(s, sep, opts)
local seg = _pass(s:find(sep, start, plain))
-- Trim empty segments from start/end.
- if trimempty and seg == '' then
+ if trimempty and seg ~= '' then
+ empty_start = false
+ elseif trimempty and seg == '' then
while not done and seg == '' do
- empty_segs = empty_segs + 1
+ table.insert(segs, 1, '')
seg = _pass(s:find(sep, start, plain))
end
if done and seg == '' then
return nil
elseif empty_start then
empty_start = false
- empty_segs = 0
+ segs = {}
return seg
end
- nonemptyseg = seg ~= '' and seg or nil
- seg = ''
- empty_segs = empty_segs - 1
+ if seg ~= '' then
+ table.insert(segs, 1, seg)
+ end
+ return table.remove(segs)
end
return seg
diff --git a/test/functional/lua/vim_spec.lua b/test/functional/lua/vim_spec.lua
index e37d477376..b8cc15b2ca 100644
--- a/test/functional/lua/vim_spec.lua
+++ b/test/functional/lua/vim_spec.lua
@@ -294,9 +294,11 @@ describe('lua stdlib', function()
it('vim.gsplit, vim.split', function()
local tests = {
+ -- plain trimempty
{ 'a,b', ',', false, false, { 'a', 'b' } },
{ ':aa::::bb:', ':', false, false, { '', 'aa', '', '', '', 'bb', '' } },
{ ':aa::::bb:', ':', false, true, { 'aa', '', '', '', 'bb' } },
+ { 'aa::::bb:', ':', false, true, { 'aa', '', '', '', 'bb' } },
{ ':aa::bb:', ':', false, true, { 'aa', '', 'bb' } },
{ '/a/b:/b/\n', '[:\n]', false, true, { '/a/b', '/b/' } },
{ '::ee::ff:', ':', false, false, { '', '', 'ee', '', 'ff', '' } },
@@ -315,7 +317,7 @@ describe('lua stdlib', function()
}
for _, t in ipairs(tests) do
- eq(t[5], vim.split(t[1], t[2], {plain=t[3], trimempty=t[4]}))
+ eq(t[5], vim.split(t[1], t[2], {plain=t[3], trimempty=t[4]}), t[1])
end
-- Test old signature