[nfbcs] Brailling computer code for embossing and display on a refreshable braille display

Steve Jacobson steve.jacobson at visi.com
Mon Sep 18 16:53:06 UTC 2017


Don,

Assuming that you are creating a "BRF" file that is being read without
additional translation, there is a UEB symbol for a hard line break in
addition to a symbol to indicate that a line is being continued.  I do not
think there was a hard line break symbol as part of the old EBAE or computer
code, though.  People using braille displays are at least somewhat aware of
the fact that their display may not be displaying the entire width of the
page in a BRF document and there are techniques that we use that help us
know that a line is being continued.  However, using a symbol to indicate
that there is a line break is probably more of a necessity now than was once
the case.  My understanding is that this same situation exists in poetry and
some other literary forms as well.

Best regards,

Steve Jacobson

-----Original Message-----
From: nfbcs [mailto:nfbcs-bounces at nfbnet.org] On Behalf Of Donald Winiecki
via nfbcs
Sent: Monday, September 18, 2017 9:44 AM
To: NFB in Computer Science Mailing List <nfbcs at nfbnet.org>
Cc: Donald Winiecki <dwiniecki at boisestate.edu>; Rasmussen, Lloyd
<lras at loc.gov>
Subject: Re: [nfbcs] Brailling computer code for embossing and display on a
refreshable braille display

Thank you Lloyd.  From your message I understand you to say that I, as the
transcriber, cannot influence how a RBD treats lines that exceed its
display line-length.

I am guessing it is risky to assume that programmers using a RBD will have
a 40-cell RBD.  With that in mind, I am keen to hear from programmers who
use a RBD to learn how this is addressed in day-to-day practice.

Best,

_don



On Mon, Sep 18, 2017 at 7:53 AM, Rasmussen, Lloyd via nfbcs <
nfbcs at nfbnet.org> wrote:

> It depends on how the user adjusts the settings of the notetaker or screen
> reader on which the braille is being read. I don't think there is much you
> can do.
> Make sure that the proper computer braille line continuation indicators
> are being used for lines longer than 40 characters. This indicator is
4-5-6
> 1-2-3-4-6 in EBAE computer braille code (CBC) or dot 5 in UEB. The dot 5
is
> also used as a line continuation indicator in braille music.
>
> Lloyd Rasmussen, Senior Staff Engineer
> National Library Service for the Blind and Physically Handicapped, Library
> of Congress
> Washington, DC 20542   202-707-0535
> http://www.loc.gov/nls/
> The preceding opinions are my own and do not necessarily reflect those of
> the Library of Congress, NLS.
>
>
> -----Original Message-----
> From: nfbcs [mailto:nfbcs-bounces at nfbnet.org] On Behalf Of Don Winiecki
> via nfbcs
> Sent: Monday, September 18, 2017 9:43 AM
> To: nfbcs at nfbnet.org
> Cc: Don Winiecki
> Subject: [nfbcs] Brailling computer code for embossing and display on a
> refreshable braille display
>
> Apologies in advance for what might be something I should already know.  I
> have searched for an answer online with a moderate level of diligence, but
> without success.
>
> I am a sighted braille transcriber and I have a question about formatting
> when brailling content that is intended for embossing, but which may also
> be read on refreshable braille devices (RBD).  This question has come up
in
> my embossing of a computer science textbook with programming code that
> should be displayed with specific line indenting and line breaks.
>
> When brailled content is to be embossed on the usual 11" x 11.5" paper, it
> is formatted with a 40-cell line length.  If a BRF file is displayed by a
> RBD with 40-cell width, formatting would display as expected with hard
line
> breaks and indenting retained from the original. However, if displayed by
a
> RBD with less than a 40-cell width, I am not certain how line breaks and
> indenting will be displayed.
>
> Does a RBD retain indenting and line breaks as would a programmer's editor
> like EMACS, or are wrap-around lines displayed starting at cell 1?
>
> Is there a way to format a BRF file so all formatting of computer code is
> retained?
>
> _don
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