strange any behaviour

[pepiporn]

from the rebol console:

>> ? any
USAGE:
    ANY block

DESCRIPTION:
     Shortcut OR. Evaluates and returns the first value that is not FALSE or NONE.
     ANY is a native value.

ARGUMENTS:
     block -- Block of expressions (Type: block)
>> (= a "hugo") or (= a "hombo")
== true
>> a: "foo"
== "foo"
>> = a any [ "foo" "bar" ]
== true
>> = a any [ "bar" "foo" ]
== false
>> (= a "bar") or ( = a "foo" )
== true
>> (= a "foo") or ( = a "bar" )
== true

----

hm i would an expression that claims itself to be a shortcut to OR to have the same behaviour as OR but as you see it hasnt.

how to do it instead (if you figured out what i want)

[CarlRead]

You've misunderstood how ANY is used.  In your examples, this is what ANY's returning...

>> any ["foo" "bar"]
== "foo"
>> any ["bar" "foo"]
== "bar"

Values are considered true unless they're a NONE or FALSE.

So your....

>> = a any [ "foo" "bar" ]
>> = a any [ "bar" "foo" ]

reduces to...

>> = a "foo"
>> = a "bar"

Here's the correct conversion of your example to ANY...

>> any [(= a "bar") (= a "foo")]
== true
>> any [(= a "foo") (= a "bar")]
== true
>> any [(= a "bar") (= a "foot")]
== none

Hope that helps.
 

[Gabriele]

Just a couple stylistic considerations:

1) If you prefer prefix syntax rather than infix, use equal? instead of =; that way it's much more readable.

Code:

any [equal? a "foo" equal? a "bar"]

2) Don't use too many parens, when you don't really need them. You don't need parens if you use equal? or = infix.

Code:

any [a = "foo"  a = "bar"]

3) Your example is probably better written as:

Code:

found? find ["foo" "bar"] a

(with found? only needed if you really want the reault to be a logic! value).