[REBOL] Re: parse rule for converting hex to decimal
From: sqlab:gmx at: 24-Feb-2010 10:59
On 24.02.2010 10:28, Şemseddin Moldibi wrote:
> Hi,
> It is strange but if I put a trace on just before the
> parse/all line script gives an error, otherwise it prints just first val
> ue.
>
> trace on
> parse/all text [some [opt #"," hex-num]]
>
> Match: (print hex-to-dec hex-digits)
> Input: ,$20,$33,$0102222
> ** Script Error: Trace: "Invalid argument:" (string)
> Trace: :arg1 (get-word)
> Invalid argument: scheme: console
>
> r: copy [] parse/all {$FA,$20,$33,$0102} [some
> ["$" copy h to "," "," (append r to-integer debase/base h 16)]
> ]
> probe r
>
This string you are parsing here does not include a comma as the last
char, as your rule demands.
just look at my two former examples.
