Why does the Lua REPL require you to prepend an equal sign in order to get a value?
snippet in lua
Why does the Lua REPL require you to prepend an equal sign in order to get a value?
user5310
local function print_results(...)
-- This function takes care of nils at the end of results and such.
if select('#', ...) > 1 then
print(select(2, ...))
end
end
repeat -- REPL
io.write'> '
io.stdout:flush()
local s = io.read()
if s == 'exit' then break end
local f, err = load(s, 'stdin')
if err then -- Maybe it's an expression.
-- This is a bad hack, but it might work well enough.
f = load('return (' .. s .. ')', 'stdin')
end
if f then
print_results(pcall(f))
else
print(err)
end
until false