Re: DECC : toupper/tolower performance

From: JF Mezei (jfmezei.spamnot_at_teksavvy.com)
Date: 03/03/05 

Date: Thu, 03 Mar 2005 12:43:34 -0500

Tom Linden wrote:
> the character set, but note they are different in the two different ways I
> demonstrated.

i got garbage from the windows output you showed, and no valuable
outpout on teh VMS box since the decterm froze just before the
intersting output.

> So my question is there a logical or other means to define
> the character set,

for character cell outpout (such as a write sys$outpout equivalejt on
your programming language), there is no logical on the host running the
program. It is defined in terminal emulator (eg: how to display arriving bytes).

Your program just spits out raw bytes.

However, because VMS is inherently an ISO-LATIN1 machine by default, you
should set your terminal emulators to translate remote system data from
latin1 to whatever that host uses. And make sure you use an 8 bit clean path.

You should be able to output a 255 (0xFF) to any terminal and see a
lowercase y with an umlaut (ÿ)

To test 8 bit cleanliness, output a é (233 or 0xE9). It if comes out as
an i (105 or 0x69), then there is something which snips all 8th bits off
your bytes along the way.

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