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[REBOL] Re: Explain please

From: joel:neely:fedex at: 17-Aug-2002 14:15

Hi, Dick, You've managed to fake out the REBOL lexical scanner!!! [reffy--ulrich--net] wrote:
> Hi List, > > >> .a:10 > == .a:10 > >> .a > ** Script Error: .a has no value > ** Where: halt-view > ** Near: .a > > no error occurred on the "assignment" > yet there is no value for .a >
I knew right off that there was no "assignment" becuase you didn't write a set-word followed by a value (there's no space after the colon, therefore there's no set-word value), and because the result of SET-WORD: EXPRESSION is the value of the expression, not an echo of the entire line. I assume you had meant to write .a: 10 instead, but still wondered why there was no complaint. So I asked REBOL what was going on...
>> type? .a:10
== url! Apparently the scheme component of a potential URL! value doesn't have to be valid (or at least known to the system) for the lexical scanner to distinguish between real urls and bogus input...
>> type? garbage:goes-here
== url! What's even more interesting is the following:
>> type? garbage:"trash"
== string!
>> foo: garbage:"trash"
== "trash"
>> foo
== "trash" Does anybody besides me think that this should be reported as a bug? -jn- -- ; Joel Neely joeldotneelyatfedexdotcom REBOL [] do [ do func [s] [ foreach [a b] s [prin b] ] sort/skip do function [s] [t] [ t: "" foreach [a b] s [repend t [b a]] t ] { | e s m!zauafBpcvekexEohthjJakwLrngohOqrlryRnsctdtiub} 2 ]