Re: Outputting NFC with ibus-m17n

[Mike FABIAN]

Richard Wordingham <richard.wordingham@ntlworld.com> さんはかきました:

> I have a couple of problems using m17n with ibus on Ubuntu.
>
> ibus 1.5.26-4
> ibus-m17n 1.4.9-1
> m17n-db 1.8.0-3
>
> The core of the keyboard definition is a set of keystroke definitions
> such as
>
> (map
>  (simple
> ;; cy3sn-p1:
>   ("B"     ?β) ; U+03b2 GREEK SMALL LETTER BETA
> ...
>   ("e_H"     ?é)     ; U+00E9 LATIN SMALL LETTER E WITH ACUTE
>   ))
> (state (init (simple)))
>
> These problems didn't occur when I was using fcitx as the input method.
>
> The first problem is that when the sequence of keystrokes is an initial
> portion of another sequence of keystrokes, the character I thought I had
> entered simply disappears after a while if I don't firm it up by moving
> to another character, e.g. by entering more strokes or moving the
> cursor.

Can you ɡive an example?

> The second problem is that the character I entered gets converted to
> NFD.  Thus I can't enter e acute to grep for the line defining its
> keystrokes - I have to create my own regular expression engine to do
> searches respecting Unicode canonical equivalence.
>
> Am I missing some tricks to avoid these problems?  The idea of the
> keyboard is that I can just type IPA by typing XSAMPA.

I am not sure whether I understand exactly what problems you are facing. 

Long ago I wrote my own ipa-x-sampa.mim which I have in my home
directory:

$ ls ~/.m17n.d/ipa-x-sampa.mim ~/.m17n.d/icons/ipa-x-sampa.png 
/home/mfabian/.m17n.d/icons/ipa-x-sampa.png  
/home/mfabian/.m17n.d/ipa-x-sampa.mim

It seems to work for me.

It did not contain a line like

("e_H"     ?é)     ; U+00E9 LATIN SMALL LETTER E WITH ACUTE

it contained only:

("_H" ?́) ;; U+0301 COMBINING ACUTE ACCENT

Because of that, when I typed “e_H” I got é (U+0065 LATIN SMALL LETTER E
followed by U+0301 COMBINING ACUTE ACCENT)

But when I add this line:

("e_H" ?é) ;; LATIN SMALL LETTER E WITH ACUTE  <- this line added today!


then typing “e_H” gives me é U+00E9 LATIN SMALL LETTER E WITH ACUTE.

But typing “a_H” still gives á (U+0061 LATIN SMALL LETTER A followed by
U+0301 COMBINING ACUTE ACCENT), because I did not add a ("a_H" ?á) line.

So by default, my ipa-x-sampa.mim produces NFD for é, that’s the way I
wrote it. But it could be changed to behave differently.

My ipa-x-sampa.mim is here:

https://github.com/mike-fabian/m17n-db-ipa-x-sampa

If you show me yours I can test it and see what goes wrong. 

-- 
Mike FABIAN <mfabian@redhat.com>
睡眠不足はいい仕事の敵だ。