[REBOL] Problem with try [ open/direct/binary tcp://... ] Re:(5)

[Al . Bri]

e wrote:
> I think I get it... When the expression is reduced down, if the result is
type error!, it ab ends.

Not quite as the error can be assigned to a variable. It's when Rebol
evaluates the results and it's of error! type. For example:

>> error? err1: err2: err3: try [1 / 0]
== true
>> probe disarm err2

make object! [
    code: 400
    type: 'math
    id: 'zero-divide
    arg1: none
    arg2: none
    arg3: none
    near: [1 / 0]
    where: none
]

Note that 'err1, 'err2 and 'err3 are all set to the same value and Rebol
doesn't "ab end". It's when the error is evaluated by Rebol:

>> err2
** Math Error: Attempt to divide by zero.
** Where: 1 / 0

    that the error causes the "ab end".

I hope that clears things up.

Andrew Martin
ICQ: 26227169
http://members.nbci.com/AndrewMartin/
http://members.xoom.com/AndrewMartin/
-><-