CODEWITHSUNDEEP
rebolred-lang
user310291
user310291

Reputation: 38190

How to use rebol/red bind to pass a block argument to another function?

I don't really understand if it can be done with bind or anything else, the documentation http://www.rebol.com/docs/words/wbind.html doesn't help as for me. I want to pass block argument from f2 to f1 :

  f1: func[block][
    foreach b block [
      print b
    ]
  ]

  f2: func[][
    a: 1
    b: 2
    block: [a b]
    f1 block
  ]

When calling 

 f2

It prints out

 a
 b

How to make it print out 

 1
 2

while passing [a b] (I don't want to pass [1 2] since it can change all the time and that is not elegant) ? Is it possible with bind or anything else ?

Upvotes: 0

Views: 99

Answers (1)

sqlab
sqlab

Reputation: 6436

f1: func[block /local i][
    foreach i block [
      print get i
    ]
]

or 

f1: func[block /local b][
    foreach b reduce block [
       print  b
    ]
]

There is a need for the local word in Red, as the foreach variable word in Red is not local to the foreach loop.

Upvotes: 1

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