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Re: bug in the alternate character set output

From: Thomas Dickey
Subject: Re: bug in the alternate character set output
Date: Mon, 12 Sep 2011 05:14:48 -0400 (EDT)

On Mon, 12 Sep 2011, Alexei Malinin wrote:

Thomas Dickey wrote:
On Sun, 11 Sep 2011, Alexei Malinin wrote:
But your example isn't doing that. It's assigning it to the alternate
character set's entry in the "|" position.

These sentences are unclear for me. In my test terminal description
I wrote that ACS_VLINE should be displayed as "|" (ASCII decimal 124).
Please see below.

But it won't do that.  Only if the terminal description's
smacs/rmacs/enacs are empty will the expected display from acsc
mappings _be_ the same as the second character in each pair.

O! I did not know about that. Is this behavior documented somewhere?

The terminfo(5) manpage should do that more clearly, but it assumes
a lot of the reader: a familiarity with vt100 escape sequences.

Is this behavior a bug or a feature?

feature ;-)

I made quick checks. My test program displayed the box correctly
for a terminal description without smacs/rmacs/enacs and with "acsc=q-x|".

that sounds right...

Thomas E. Dickey

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