On Aug 01, 2007, at 13:30, Roberto Ierusalimschy wrote:
a = new.tuple(2, nil, "foo")
#a -- not available; perhaps a"#" ???
a:insert("baz") -- not available (tuples are immutable)
a(3) -- yields "foo"
a() -- yields 2, nil, "foo"
for i, v in a do ... -- or something like this...
Another wacky implementation with support for 'unpack' of sort: local Tuple = require( 'Tuple' ) local aTuple = Tuple( 2, nil, 'foo', nil ) print( #aTuple ) -- count print( aTuple( 3 ) ) -- one value print( aTuple( '*' ) ) -- all values for anIndex, aValue in aTuple do -- enumerate print( anIndex, aValue ) end > 4 > foo > 2 nil foo nil > 1 2 > 2 nil > 3 foo
Attachment:
Tuple.lua
Description: Binary data