[liblouis-liblouisxml] Re: Question regarding some code in liblouisutdml
- From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Thu, 29 May 2014 02:53:47 -0500
brf certainly makes sense for back-translation. I've gotten mesages from
people who are using it.
John
On Thu, May 29, 2014 at 08:01:50AM +0100, Michael Whapples wrote:
> Thanks. So if I understand that correctly, these greater formatFor
> values relate to formatted formats and UTD is a way of getting it
> formatted?
>
> I am not sure whether BRF, PEF, etc really make sense in back
> translation anyway, so may be they just need to be invalid values
> and lbu_backTranslateString might be better to exit with an error.
>
> Michael Whapples
> On 29/05/2014 00:25, John J. Boyer wrote:
> >The intention is to base all formats except textDevice and browser on
> >UTDML. This is because in the case of volumes, for example, utd provides
> >a first pass over the material, which is then intended to be used in
> >determining volume size, etc. In all formats except textDevice and
> >browser utd provides the basis for including images and different cell
> >sizes.
> >
> >Do not change this code. It would result in a major rewrite. If utd is
> >working for a given document the problem is in the conversion modules,
> >such as utd2volumes or utd2brf .
> >
> >John
> >
> >On Wed, May 28, 2014 at 06:08:23PM +0100, Michael Whapples wrote:
> >>Hello,
> >>I have been working to correct the back translation from the java
> >>bindings of liblouisutdml. This has revealed a related bug, which
> >>probably will affect C applications using back translation in
> >>liblouisutdml.
> >>
> >>Basically the specific bug is that if one uses a value other than
> >>textDevice, browser or utd for the setting formatFor in the
> >>configuration file (IE. in my testing I used the value brf), then
> >>back translation fails, liblouisutdml seems to use the function
> >>utd_back_translate_braille_string.
> >>
> >>I have tracked the cause of this bug down to the following lines. In
> >>the file readconfig.c in function read_configuration_file at line
> >>1424 we have:
> >>if (ud->format_for > utd || (ud->mode & louisDots))
> >>
> >>Inside the block relating to that if statement we get:
> >>ud-format_for = utd;
> >>
> >>Can someone explain why this code is being used and what it is meant
> >>to be achieving?
> >>
> >>Michael Whapples
> >>For a description of the software, to download it and links to
> >>project pages go to http://www.abilitiessoft.com
>
> For a description of the software, to download it and links to
> project pages go to http://www.abilitiessoft.com
--
John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
http://www.abilitiessoft.com
Madison, Wisconsin USA
Developing software for people with disabilities
For a description of the software, to download it and links to
project pages go to http://www.abilitiessoft.com
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