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In init.vim, I have a Vimscript function that calls a Lua function and returns its value: function! CallLuaFunction() return luaeval("require('functions').say_hello()") endfunction The Lua ...
#1: Initial revision
by
Matthias Braun
·
2025-02-20T01:02:07Z (2 days ago)
Call custom Lua function in Vimscript function
In `init.vim`, I have a Vimscript function that calls a Lua function and returns its value:
function! CallLuaFunction()
return luaeval("require('functions').say_hello()")
endfunction
The Lua function is defined in `lua/functions.lua`:
function say_hello()
return "Hello from lua/functions.lua!"
end
This is all experimental, so I've set up a mapping in `init.vim`:
nnoremap <F2> :echo CallLuaFunction()<cr>
But this produces an error:
>E5108: Error executing lua [string "luaeval()"]:1: attempt to index a boolean value
How can I call a custom Lua function from Vimscript?