[REBOL] [understanding 'bind]
From: rebol665::ifrance::com at: 7-Mar-2002 13:52
Hi rebollers, Hi Romano
I am making progress on the exploration of the 'bind command. I have
discovered it can be used for functions too. This is a short example where
'bind is used to access a locally defined 'print function instead of the
global one.
rebol []
o: make object! [
print: func [b [block!]][rebol/words/print compose ["o-print-> " (b)]]
test1: does [print ["test"]]
test2: func [b [block!]][do b]
test3: func [b [block!]][do bind b 'self]
]
o/test1
o/test2 [print ["Hello World!"]]
o/test3 [print ["Hello World!"]]
halt
Results are :
o-print-> test
Hello World!
o-print-> Hello World!
Is it a good example ?
Has anyone a practical illustration for that kind of usage ?
Remarks and critics will be appreciated.
Patrick
PS : I have in mind to produce a small "'Bind for dummies" html document.
