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fix(lua): make vim.str_utfindex and vim.str_byteindex handle NUL bytes

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fixes #16290
This commit is contained in:
bfredl
2022-09-12 11:26:27 +02:00
parent 738c204523
commit 25e4af439f
3 changed files with 13 additions and 8 deletions
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12
test/functional/lua/vim_spec.lua
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@@ -158,17 +158,20 @@ describe('lua stdlib', function()
end)
it("vim.str_utfindex/str_byteindex", function()
exec_lua([[_G.test_text = "xy åäö ɧ 汉语 ↥ 🤦x🦄 å بِيَّ"]])
local indicies32 = {[0]=0,1,2,3,5,7,9,10,12,13,16,19,20,23,24,28,29,33,34,35,37,38,40,42,44,46,48}
local indicies16 = {[0]=0,1,2,3,5,7,9,10,12,13,16,19,20,23,24,28,28,29,33,33,34,35,37,38,40,42,44,46,48}
exec_lua([[_G.test_text = "xy åäö ɧ 汉语 ↥ 🤦x🦄 å بِيَّ\000ъ"]])
local indicies32 = {[0]=0,1,2,3,5,7,9,10,12,13,16,19,20,23,24,28,29,33,34,35,37,38,40,42,44,46,48,49,51}
local indicies16 = {[0]=0,1,2,3,5,7,9,10,12,13,16,19,20,23,24,28,28,29,33,33,34,35,37,38,40,42,44,46,48,49,51}
for i,k in pairs(indicies32) do
eq(k, exec_lua("return vim.str_byteindex(_G.test_text, ...)", i), i)
end
for i,k in pairs(indicies16) do
eq(k, exec_lua("return vim.str_byteindex(_G.test_text, ..., true)", i), i)
end
matches(": index out of range$", pcall_err(exec_lua, "return vim.str_byteindex(_G.test_text, ...)", #indicies32 + 1))
matches(": index out of range$", pcall_err(exec_lua, "return vim.str_byteindex(_G.test_text, ..., true)", #indicies16 + 1))
local i32, i16 = 0, 0
for k = 0,48 do
local len = 51
for k = 0,len do
if indicies32[i32] < k then
i32 = i32 + 1
end
@@ -180,6 +183,7 @@ describe('lua stdlib', function()
end
eq({i32, i16}, exec_lua("return {vim.str_utfindex(_G.test_text, ...)}", k), k)
end
matches(": index out of range$", pcall_err(exec_lua, "return vim.str_utfindex(_G.test_text, ...)", len + 1))
end)
it("vim.str_utf_start", function()