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Re: [PATCH] Unicode Lisp reader escapes
From: |
Oliver Scholz |
Subject: |
Re: [PATCH] Unicode Lisp reader escapes |
Date: |
Thu, 04 May 2006 15:07:36 +0200 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux) |
address@hidden (Kim F. Storm) writes:
> Oliver Scholz <address@hidden> writes:
>
>> Here's the patch, only slightly tested:
>
>> +
>> +/* Return the internal character coresponding to an UCS code point.*/
>> +
>> +int
>> +ucs_to_internal (ucs)
>> + int ucs;
>> +{
>> + if (! EQ (Qnil, SYMBOL_VALUE (intern ("utf-translate-cjk-mode"))))
>> + if (EQ (Qnil, SYMBOL_VALUE (intern ("utf-translate-cjk-lang-env"))))
>> + call0 (intern ("utf-translate-cjk-load-tables"));
>> + Fget (intern ("utf-subst-table-for-decode"),
>> + intern ("translation-hash-table")),
>> + Lisp_Object vect = Fget (intern ("utf-translation-table-for-decode"),
>> + intern ("translation-table"));
>> +}
>
> That's 7 lisp vars accessed from C - for decoding one character!?!
Nearly inevitable, if you want to DTRT with CJK.
> How often does this happen?
Every time a character specified with \u is decoded. The call0,
however, probably just once per Emacs session.
> If it is only/primarily used for interactive use, I guess it doesn't matter.
> Otherwise, I think those vars should be declared in C, to avoid the overhead
> of interning them at run-time...
I tend to agree; but that is probably too intrusive.
Oliver
--
15 Floréal an 214 de la Révolution
Liberté, Egalité, Fraternité!
- Re: [PATCH] Unicode Lisp reader escapes, (continued)
- Re: [PATCH] Unicode Lisp reader escapes, Kim F. Storm, 2006/05/04
- Re: [PATCH] Unicode Lisp reader escapes, Stefan Monnier, 2006/05/04
- Re: [PATCH] Unicode Lisp reader escapes, Kim F. Storm, 2006/05/04
- Re: [PATCH] Unicode Lisp reader escapes, Eli Zaretskii, 2006/05/04
- Re: [PATCH] Unicode Lisp reader escapes, Stefan Monnier, 2006/05/04
- Re: [PATCH] Unicode Lisp reader escapes, Eli Zaretskii, 2006/05/05
- Re: [PATCH] Unicode Lisp reader escapes, Oliver Scholz, 2006/05/05
- Re: [PATCH] Unicode Lisp reader escapes, Stuart D. Herring, 2006/05/05
- Re: [PATCH] Unicode Lisp reader escapes, Stefan Monnier, 2006/05/05
- Re: [PATCH] Unicode Lisp reader escapes, Oliver Scholz, 2006/05/05
- Re: [PATCH] Unicode Lisp reader escapes,
Oliver Scholz <=
- Re: [PATCH] Unicode Lisp reader escapes, Eli Zaretskii, 2006/05/04
- Re: [PATCH] Unicode Lisp reader escapes, Aidan Kehoe, 2006/05/04
- Re: [PATCH] Unicode Lisp reader escapes, Oliver Scholz, 2006/05/05
- Re: [PATCH] Unicode Lisp reader escapes, Oliver Scholz, 2006/05/05
- Re: [PATCH] Unicode Lisp reader escapes, Aidan Kehoe, 2006/05/05
- Re: [PATCH] Unicode Lisp reader escapes, Oliver Scholz, 2006/05/05
- Re: [PATCH] Unicode Lisp reader escapes, Eli Zaretskii, 2006/05/05
- Re: [PATCH] Unicode Lisp reader escapes, Richard Stallman, 2006/05/06
- Re: [PATCH] Unicode Lisp reader escapes, Oliver Scholz, 2006/05/06
- Message not available
- Re: [PATCH] Unicode Lisp reader escapes, Richard Stallman, 2006/05/07