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Den 2018-03-06 kl. 12:59, skrev Mike Sheldon:
> Hi Rinigus,
> On Mon, Mar 5, 2018 at 8:23 PM, rinigus <rinigus....@gmail.com
> <mailto:rinigus....@gmail.com>> wrote:
>     As I mentioned in the mail, we have extended Presage with the new
>     language model that maybe of interest to your keyboard
>     implementation as well. Speedup is of the order of 10x, maybe more
>     in addition to the significant reduction on database size. We are
>     discussing also Unicode support by Presage to properly support
>     case-insensitive n-gram search, not via `tolower` as done now. It
>     will probably change the database format to implement properly, bu
>     then should stabilize. If there is anyone from UBPorts interested 
>     joining Presage development - we would be happy to get any help :)
> That's interesting, you might also be interested in taking a look at m
> (unfinished) Skeyer branch: 
> https://code.launchpad.net/~michael-sheldon/ubuntu-keyboard/skeyer-pro
> That uses saidinesh's libskeyer to provide auto-correction (and
> eventually swipe style input), this provides spatially aware correctio
> (i.e. it knows that 'b' is next to 'n' on an English keyboard so would
> suggest 'and' as a correction for 'abd' instead of Presage's predictio
> of 'abdicate'). I think the strongest approach would involve a
> combination of the two, using Skeyer for correction and Presage for
> prediction.

Just a quick note that for presage the hunspell predictor provide
basically the correction functionality. But I see no problem adding
libskeyer as a predictor too in contrast to have them in another loose
combination of predictor and corrector.


>     Few general questions though:
>     * If I want to test the keyboard, is there VirtualBox (or some oth
>     similar) emulator for Ubuntu Touch / UBPorts? 
> As far as I'm aware there isn't a working emulator image, however you
> can run the Ubuntu Keyboard on a standard desktop system as well; afte
> compiling and installing the plugin as normal and running maliit-serve
> you can start any QT app with the environment variable
> 'QT_IM_MODULE=maliitphablet' to invoke the keyboard.
>     * Do you have some mailing list or some other means where we could
>     discuss joint projects with UBPorts developers?
> There's a pretty active Telegram group here: https://t.me/ubports (I'm
> on there, but not very involved) and the UBPorts forums
> here: https://forums.ubports.com/
>     * If we would like to port UBPorts keyboard, would it mainly requi
>     changes
>     in https://github.com/ubports/keyboard-component/tree/master/qml
>     <https://github.com/ubports/keyboard-component/tree/master/qml> ,
>     icons and schema.  Or would you expect some other parts require
>     adaptation? Just an estimate would be fine at this stage.
> From memory there shouldn't be too much that needs changing; most of t
> QML is standard QtQuick, there should only be a few things using the
> Ubuntu Components that'll need replacing, e.g. the language menu and
> anywhere that's using Ubuntu's grid units for sizing.
>     I would expect that the keyboard performs its own tokenization to
>     split between the text on the left and the last word that needs
>     prediction. Later, when Presage is called, strings are put back
>     together and Presage is splitting it to words again. Which, in
>     addition to double effort, can be source of confusion if the split
>     to words doesn't match. From the brief look into the code with the
>     help of grep, it looks like tokens are split by spaces and few oth
>     similar chars (\n) with the exception of plugins/ko. Do you happen
>     to have some API that could be used to plugin different tokenizati
>     library, same Presage for example?
> As far as I recall our tokenization was pretty simple, we basically ju
> allowed each plugin to define a list of characters to tokenize on (so
> for example Chinese could tokenize on different characters from
> English), it probably wouldn't be difficult to replace that with
> tokenization performed by another library.
> Hope that helps :)
>  Mike
>     But before going into major porting of the keyboard, would be good
>     to know what Jolla's plans are regarding their keyboard. They shou
>     be back in the office now after a great time in Spain, hopefully w
>     can hear back.  
>     Best wishes,
>     Rinigus
>     On Mon, Mar 5, 2018 at 4:18 PM, Mike Sheldon <m...@mikeasoft.com
>     <mailto:m...@mikeasoft.com>> wrote:
>         Hey Rinigus,
>         I've been out of the Jolla ecosystem for a while (since my pho
>         was lost a couple of years ago), so can't say anything much
>         about the Jolla keyboard; but I was the lead developer on the
>         Ubuntu Keyboard at Canonical so am happy to answer any specifi
>         questions you have about that.
>         Cheers,
>          Mike
>         On Wed, Feb 28, 2018 at 7:14 PM, rinigus <rinigus....@gmail.co
>         <mailto:rinigus....@gmail.com>> wrote:
>             Hi,
>             I have a question regarding the longer term plans for
>             keyboard development in SFOS. Namely, @martonmiklos has
>             brought over Presage predictor to SFOS and already publish
>             keyboard using this library. I think its a great developme
>             and together with @ljo we have been helping @martonmiklos 
>             make this plugin better. Please note that below, I speak f
>             myself and I haven't checked whether these questions even
>             make sense with others.
>             At present, the released plugin has been enhanced by makin
>             it fast through using different language model storage/que
>             mechanism, using relatively small size of n-gram database
>             (English 5MB, Estonian 10MB), made asynchronous to ensure
>             that the user's input is not lagging behind, and just
>             extended with Hunspell speller as an additional "predictor
>             All is in the testing / bugfixing stage. In longer
>             term, with the right effort, we could get very well workin
>             open-source predictive engine and keyboard.
>             I am trying to understand how the pieces fall together and
>             am not sure 100% whether I do. I can see that SFOS uses
>             proprietary jolla-keyboard and the developed Presage input
>             handler extends it. Which is fine, but maybe we could go
>             deeper and do better.
>             From looking around, Maliit has adopted keyboard developed
>             by Ubuntu Touch as a reference, corresponding Maliit
>             repo https://github.com/maliit/keyboard
>             <https://github.com/maliit/keyboard> . In addition to
>             UBPorts, the same keyboard is used by LuneOS. This design
>             already supports Presage and Hunspell, also done in
>             asynchronous manner as we are testing for SFOS now. It has
>             support for quite a few number of languages, pinyin, and
>             emoji. I do not know how this design compares to the
>             internals of jolla-keyboard and maybe someone can share
>             their knowledge regarding it. I would expect that it was
>             developed on the top of Maliit available at the time of J1
>             and kept as it is after that.
>             Now, I do wonder what is the long term plan with the
>             keyboard development? From the outside of Jolla, it seems 
>             me that it would be wise to join forces with the others an
>             develop this component together. Each OS in question has
>             their own styling, but that seems to be possible to apply 
>             top. 
>             Its not trivial to compile the latest Maliit on SFOS (they
>             switched to CMake based builds and few cmake configs are
>             missing in SFOS right now), but I expect that its possible
>             with some effort. Just don't want to spend too much time i
>             it's gonna be without any use.
>             So, to summarize, I would like to hear what's an opinion o
>             the raised issues by those who know. Would be great to kno
>             plans and comparison of jolla-keyboard with the current
>             Maliit UBPorts/LuneOS versions. 
>             Best wishes,
>             Rinigus


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