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-rw-r--r--runtime/doc/lua.txt5
-rw-r--r--runtime/lua/vim/text.lua10
2 files changed, 10 insertions, 5 deletions
diff --git a/runtime/doc/lua.txt b/runtime/doc/lua.txt
index 36d6e0d41e..8e600adeb9 100644
--- a/runtime/doc/lua.txt
+++ b/runtime/doc/lua.txt
@@ -4385,8 +4385,9 @@ vim.text.hexdecode({enc}) *vim.text.hexdecode()*
Parameters: ~
• {enc} (`string`) String to decode
- Return: ~
- (`string`) Decoded string
+ Return (multiple): ~
+ (`string?`) Decoded string
+ (`string?`) Error message, if any
vim.text.hexencode({str}) *vim.text.hexencode()*
Hex encode a string.
diff --git a/runtime/lua/vim/text.lua b/runtime/lua/vim/text.lua
index bc90d490aa..0be3396464 100644
--- a/runtime/lua/vim/text.lua
+++ b/runtime/lua/vim/text.lua
@@ -18,15 +18,19 @@ end
--- Hex decode a string.
---
--- @param enc string String to decode
---- @return string : Decoded string
+--- @return string? : Decoded string
+--- @return string? : Error message, if any
function M.hexdecode(enc)
- assert(#enc % 2 == 0, 'string must have an even number of hex characters')
+ if #enc % 2 ~= 0 then
+ return nil, 'string must have an even number of hex characters'
+ end
+
local str = {} ---@type string[]
for i = 1, #enc, 2 do
local n = assert(tonumber(enc:sub(i, i + 1), 16))
str[#str + 1] = string.char(n)
end
- return table.concat(str)
+ return table.concat(str), nil
end
return M