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I'm going to exit this thread as I'm clearly missing something, but do
believe that the explicit loop looking for < blank (as proposed by Alan) is
the best performer. I really hope that Barbara notices this thread and
joins in as I'm always open to education from her :)

To me Xlate (and I agree with Scott on Xlating to x'40' rather than x'39'
or some such followed by a ScanRpl) is "somewhere" (I don't know if it
might be an implicit RPG compiler generated lookup or a MI instruction as I
haven't checked MI in a long, long time) having to look up the current byte
being processed and having to search to see if it is in the Xlate from
string in order to replace it with the Xlate to string, which certainly
suggests more machine processing to me. Doing a direct loop on < blank
eliminates this additional processing of specific from values. Please note
that I'm looking at this strictly from a system performance (cycles) point
of view.

I also agree with Scott on < '40' might be a problem in some environments
and I'm thinking DBCS shift controls in particular (though there is nothing
in this thread suggesting DBCS needs).

On Thu, Nov 18, 2021 at 5:44 PM Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>

I agree with this solution. I don't understand the point of xlating
all bad characters to x'39', and then using %scanrpl on x'39'... just
use %xlate to translate them all to x'40'.

That way any control codes will be replaced by blanks.

converting all of x'00' - x'39' might be overkill, though... you
probably only need to convert those that would be interpreted as 5250
control codes.

On 11/18/2021 4:12 PM, Francois Lavoie wrote:
Proper syntax:
%Xlate(X'00010203...up to 39':*Blank:string);

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