[antispam-f] Re: G T R L format spam
- From: Harriet Bazley <lists@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
- To: antispam@xxxxxxxxxxxxx
- Date: Fri, 10 May 2013 14:02:41 +0100
On 8 May 2013 as I do recall,
Dave Higton wrote:
> On 2013-05-08, Harriet Bazley wrote:
>
> > I don't know if anyone else if being afflicted by stock-market-promotion
> > spam advertising the mysterious GTRL - samples:
[snip]
> > DEF FN@GTRL
> > LOCAL start%, end%,sub$,n%,len%,line$
> > REM search for letters G T R L, poss. separated by space or punctuation
[snip]
> > FOR n%=1 TO len%
> > sub$=MID$(line$,start%+n%,1)
> > IF INSTR("GTRL _.'",sub$)=0 THEN n%=100
> > NEXT n%
[snip]
>
> How about removing all spaces and underscores, then searching for the
> substring "GTRL"?
>
I was trying to avoid a lot of (slow) string-slicing by narrowing things
down first... you could of course simply run the FOR-NEXT loop over
every letter of every body text line of every incoming message!
--
Harriet Bazley == Loyaulte me lie ==
The only rose without thorns is friendship.
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