Re: brltty and simultaneous grade 2 translation

["John J. Boyer" <director@chpi.org>]

Bill,
I am pretty sure that Jaws also just translates enough to fill the Braille
display. I use Jaws also, and that's my deduction from the way it behaves
and my knowledge of programming.
John

Computers to Help People, Inc.
http://www.chpi.org
825 East Johnson; Madison, WI 53703


----- Original Message -----
From: "Bill Gaughan" <wgaughan@snet.net>
To: <blinux-list@redhat.com>
Sent: Monday, November 26, 2001 13:18
Subject: Re: brltty and simultaneous grade 2 translation


> When how would you accommodate continuous grade two reading of text on a
> braille display? I am assuming that if the reader advances the display to
> the next text area (40 or 80 characters) then you would get computer
> braille again and then have to toggle or switch to grade two braille.
>
> Q. How does the brltty buffer get filled? Say, every time you hit next
> page or previous page in pine or hit spacebar in lynx, does it reinit the
> buffer and refill it with new text? all I know is that in spb.exe and
> jaws, once you toggle grade two braille on, it remains on, until you turn
> it off regardless of what you do from the computer keyboard that effect
> the cursor or mouse pointer. text always continues to go to the display as
> grade two until you turn it off.
>
>
> --
> Bill Gaughan
> wgaughan@snet.net
>
>
> On Mon, 26 Nov 2001, Dave Mielke wrote:
>
> > [quoted lines by John J. Boyer on November 26, 2001, at 08:49]
> >
> > Hi:
> >
> > >The Grade 2 translation should be on-the-fly and should affect only as
much
> > >information as will fit on the display.
> >
> > BRLTTY, of course, would have no way of knowing how much translated data
will
> > fit within the braille window. It, therefore, would have to pass in the
whole
> > rest of the line starting at the position where the left end of the
braille
> > window is.
> >
> > What about the case where the left end of the braille window starts in
the
> > middle of a contraction? This shouldn't happen when already in grade 2
mode,
> > but might happen when switching into grade 2 mode. I guess it should
just leave
> > that little bit at the beginning uncontracted.
> >
> > There's also the possibility that the end of what'll fit within the
braille
> > window won't fit. Should it show the beginning of the
contraction/symbol, or
> > leave the end of the window blank?
> >
> > >Translating the whole screen at once
> > >would probably be a bad idea.
> >
> > I agree, even if simply because it may be a lot of useless work since
the
> > screen might change by the time te reader gets there.
> >
> > >One way the Grade 2 translator could work
> > >would be to pass it the place where the translation is to begin. It
will
> > >then translate as much as will fit on the display and pass back  the
place
> > >where it ended.
> >
> > I think it'd have to be screen unaware. I'd like to be able to pass in a
> > character string, which would end up being the rest of the current line
from
> > the place where the braille window starts. To make cut&paste work
correctly,
> > I'd want back the offset into the input string of each character in the
output
> > string.
> >
> > >The translation tables should be provided in a form that is easily
edited,
> > >so that users can make changes and write tables for new languages. A
table
> > >compiler would probably be advisable to preprocess the tables before
they
> > >are actually used in translation.
> >
> > Yes, that'd be a good way to design it. Hopefully the table would be
general
> > enough to support languages other than English.
> >
> > >A keystroke on the Braille display can toggle between Grade 2 and the
> > >present display mode.
> >
> > Agreed.
> >
> > >The table can be "compiled" when BRLTTY starts, or even recompiled
> > >on-the-fly with a special keystroke.
> >
> > Bewtter yet might be to check the timestamp on the table, and recompile
if it
> > changes.
> >
> > >We can do better than Jaws, which doesn't have user-accessible tables.
> >
> > Of course!
> >
> >
>
>
>
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