* Compositions documentation
@ 2009-02-06 15:23 Eli Zaretskii
2009-02-07 2:00 ` Stefan Monnier
2009-02-10 6:26 ` Kenichi Handa
0 siblings, 2 replies; 3+ messages in thread
From: Eli Zaretskii @ 2009-02-06 15:23 UTC (permalink / raw)
To: emacs-devel
I see that the Lisp APIs that deal with compositions
(composition-get-gstring, compose-region, compose-string,
find-composition, etc.) are not documented in the ELisp manual.
Should they be? Or are these APIs so obscure that no one should futz
with them?
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Compositions documentation
2009-02-06 15:23 Compositions documentation Eli Zaretskii
@ 2009-02-07 2:00 ` Stefan Monnier
2009-02-10 6:26 ` Kenichi Handa
1 sibling, 0 replies; 3+ messages in thread
From: Stefan Monnier @ 2009-02-07 2:00 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: emacs-devel
> I see that the Lisp APIs that deal with compositions
> (composition-get-gstring, compose-region, compose-string,
> find-composition, etc.) are not documented in the ELisp manual.
> Should they be? Or are these APIs so obscure that no one should futz
> with them?
FWIW, `compose-region' is used in the "pretty lambda" trick, which
I have adapted to sml-mode, haskell-mode, and a bunch of others.
Stefan
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Compositions documentation
2009-02-06 15:23 Compositions documentation Eli Zaretskii
2009-02-07 2:00 ` Stefan Monnier
@ 2009-02-10 6:26 ` Kenichi Handa
1 sibling, 0 replies; 3+ messages in thread
From: Kenichi Handa @ 2009-02-10 6:26 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: emacs-devel
In article <umycztwrm.fsf@gnu.org>, Eli Zaretskii <eliz@gnu.org> writes:
> I see that the Lisp APIs that deal with compositions
> (composition-get-gstring, compose-region, compose-string,
> find-composition, etc.) are not documented in the ELisp manual.
> Should they be? Or are these APIs so obscure that no one should futz
> with them?
Compose-region and compose-string are described in
etc/NEWS.21 as this:
*** The function `compose-region' takes new arguments COMPONENTS and
MODIFICATION-FUNC. With COMPONENTS, you can specify not only a
composition rule but also characters to be composed. Such characters
may differ between buffer and string text.
*** The function `compose-string' takes new arguments START, END,
COMPONENTS, and MODIFICATION-FUNC.
*** The function `compose-string' puts text property `composition'
directly on the argument STRING instead of returning a new string.
Likewise, the function `decompose-string' just removes text property
`composition' from STRING.
*** The new function `find-composition' returns information about
a composition at a specified position in a buffer or a string.
If they are not documented now, perhaps RMS decided that
it's not worthwhile. But, I think it is better to document
them.
On the other hand, composition-get-gstring and the other
several new functions in composite.el are only for Emacs
internal.
---
Kenichi Handa
handa@m17n.org
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2009-02-06 15:23 Compositions documentation Eli Zaretskii
2009-02-07 2:00 ` Stefan Monnier
2009-02-10 6:26 ` Kenichi Handa
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