Multiple returns & list constructors
[
Date Prev][
Date Next][
Thread Prev][
Thread Next]
[
Date Index]
[
Thread Index]
- Subject: Multiple returns & list constructors
- From: David Given <dg@...>
- Date: 2004年8月18日 13:01:14 +0100
The configuration system I'm using Lua for wants to create long lists of
items. Something like this:
list {
"one", "two", "three", "four"
}
I have a function that massages some data and returns some items to be
included in the above list:
function fn(...)
return "A", "B", C"
end
It's used like this:
list {
"one", "two", "three", "four",
fn {"some more data here"}
}
-> "one", "two", "three", "four", "A", "B", "C"
That works fine.
Unfortunately, multiple returns from a function are only concatenated to the
list if the function is the *last* thing on the list. If it's somewhere in
the middle of the list, only the first item is added.
list {
"one", "two", fn {}, "three"
}
--> "one", "two", "A", "three"
This isn't what I need. I *have* to be able to add multiple items, because I'm
going to want to call fn() several times while creating the list.
Are there any workarounds I can use to fix this? I can have fn() return a
table, in which case the table gets added to the list, but it's still added
as a single item where I actually want the contents of the item instead...
Any suggestions?
--
+- David Given --McQ-+ "P.S. If you do not receive this, of course it
| dg@cowlark.com | must have been miscarried; therefore I beg you to
| (dg@tao-group.com) | write and let me know." --- Sir Boyle Roche, in a
+- www.cowlark.com --+ letter