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Extend list_extend to take start/finish.

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This commit is contained in:
Ashkan Kiani
2019-11-20 17:09:21 -08:00
parent 9b7f956715
commit b984f613c1
4 changed files with 31 additions and 27 deletions
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31
runtime/lua/vim/shared.lua
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@@ -226,18 +226,25 @@ function vim.tbl_add_reverse_lookup(o)
return o
end
--- Extends a list-like table with the values of another list-like table.
---
--NOTE: This *mutates* dst!
--@see |extend()|
---
--@param dst The list which will be modified and appended to.
--@param src The list from which values will be inserted.
function vim.list_extend(dst, src)
assert(type(dst) == 'table', "dst must be a table")
assert(type(src) == 'table', "src must be a table")
for _, v in ipairs(src) do
table.insert(dst, v)
-- Extends a list-like table with the values of another list-like table.
--
-- NOTE: This *mutates* dst!
-- @see |extend()|
--
-- @param dst list which will be modified and appended to.
-- @param src list from which values will be inserted.
-- @param start Start index on src. defaults to 1
-- @param finish Final index on src. defaults to #src
-- @returns dst
function vim.list_extend(dst, src, start, finish)
vim.validate {
dst = {dst, 't'};
src = {src, 't'};
start = {start, 'n', true};
finish = {finish, 'n', true};
}
for i = start or 1, finish or #src do
table.insert(dst, src[i])
end
return dst
end