* record_unwind_save_match_data in autocmp_chars
@ 2009-10-03 9:43 Eli Zaretskii
2009-10-05 0:42 ` Kenichi Handa
0 siblings, 1 reply; 2+ messages in thread
From: Eli Zaretskii @ 2009-10-03 9:43 UTC (permalink / raw
To: Kenichi Handa; +Cc: emacs-devel
composite.c:autocmp_chars calls record_unwind_save_match_data before
it starts looping on an element of composition-function-table.
However, since the loop calls fast_looking_at, which is documented not
to change match data, is the call to record_unwind_save_match_data
really necessary? If it is still necessary, what other functions
called by autocmp_chars might clobber match data?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: record_unwind_save_match_data in autocmp_chars
2009-10-03 9:43 record_unwind_save_match_data in autocmp_chars Eli Zaretskii
@ 2009-10-05 0:42 ` Kenichi Handa
0 siblings, 0 replies; 2+ messages in thread
From: Kenichi Handa @ 2009-10-05 0:42 UTC (permalink / raw
To: Eli Zaretskii; +Cc: emacs-devel
In article <83ab08q0bq.fsf@gnu.org>, Eli Zaretskii <eliz@gnu.org> writes:
> composite.c:autocmp_chars calls record_unwind_save_match_data before
> it starts looping on an element of composition-function-table.
> However, since the loop calls fast_looking_at, which is documented not
> to change match data, is the call to record_unwind_save_match_data
> really necessary? If it is still necessary, what other functions
> called by autocmp_chars might clobber match data?
autocmp_chars calls the Lisp function auto-compose-chars via
safe_call, and auto-compose-chars calls Lisp functions
registered in composition-function-table.
---
Kenichi Handa
handa@m17n.org
^ permalink raw reply [flat|nested] 2+ messages in thread
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