Re: Type Metatables for Table and Userdata - Powerpatch

[steve donovan <steve.j.donovan@...>]

On Fri, Dec 7, 2012 at 9:20 AM, Sven Olsen <sven2718@gmail.com> wrote:

> Or maybe turn it into a value iteration shorthand:>
> foreach v in t --> for _,v in pairs(t)

There's a macro for that ;)

https://github.com/stevedonovan/LuaMacro/blob/master/macro/forall.lua

(LuaMacro used to be based on lhf's generic lexer patch, but the
current lpeg solution allows plain Lua of any variant.)

forall can have an optional if clause

forall x in t if x > 0 do ... end

steve d.