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| author | Dmitry Antipov <dmantipov@yandex.ru> | 2013-08-06 10:53:09 +0400 |
|---|---|---|
| committer | Dmitry Antipov <dmantipov@yandex.ru> | 2013-08-06 10:53:09 +0400 |
| commit | e30b79c1c52a4428189ca148c73e7ecc993c6f6a (patch) | |
| tree | a7f60977d16877bbe0f626429243ea19543ed84e /src/buffer.h | |
| parent | 00012b86257f33dd4e08e79b814f4a7ad6010713 (diff) | |
| download | emacs-e30b79c1c52a4428189ca148c73e7ecc993c6f6a.tar.gz | |
Use region cache to speedup bidi_find_paragraph_start.
* src/buffer.h (struct buffer): New member bidi_paragraph_cache.
Rename cache_long_line_scans to cache_long_scans.
* src/buffer.c (bset_cache_long_line_scans): Rename to
bset_cache_long_scans.
(Fget_buffer_create, Fmake_indirect_buffer, Fkill_buffer)
(Fbuffer_swap_text, init_buffer_once): Take bidi_paragraph_cache
into account.
(syms_of_buffer): Rename cache-long-line-scans to
cache-long-scans. Adjust docstring.
* src/search.c (newline_cache_on_off):
* src/indent.c (width_run_cache_on_off): Adjust users.
* src/bidi.c (bidi_paragraph_cache_on_off): New function.
(bidi_find_paragraph_start): Use bidi_paragraph_cache if needed.
* src/insdel.c (prepare_to_modify_buffer): Invalidate
bidi_paragraph_cache if enabled.
* doc/lispref/positions.texi (Motion by Screen Lines):
* doc/lispref/display.texi (Truncation): Rename `cache-long-line-scans'
to `cache-long-scans'.
Diffstat (limited to 'src/buffer.h')
| -rw-r--r-- | src/buffer.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/buffer.h b/src/buffer.h index 646f8f72232..221db39329a 100644 --- a/src/buffer.h +++ b/src/buffer.h @@ -632,9 +632,9 @@ struct buffer /* List of symbols naming the file format used for auto-save file. */ Lisp_Object INTERNAL_FIELD (auto_save_file_format); - /* True if the newline position cache and width run cache are - enabled. See search.c and indent.c. */ - Lisp_Object INTERNAL_FIELD (cache_long_line_scans); + /* True if the newline position cache, width run cache and BIDI paragraph + cache are enabled. See search.c, indent.c and bidi.c for details. */ + Lisp_Object INTERNAL_FIELD (cache_long_scans); /* If the width run cache is enabled, this table contains the character widths width_run_cache (see above) assumes. When we @@ -839,9 +839,12 @@ struct buffer the character's width; if it maps a character to zero, we don't know what its width is. This allows compute_motion to process such regions very quickly, using algebra instead of inspecting - each character. See also width_table, below. */ + each character. See also width_table, below. + + The latter cache is used to speedup bidi_find_paragraph_start. */ struct region_cache *newline_cache; struct region_cache *width_run_cache; + struct region_cache *bidi_paragraph_cache; /* Non-zero means don't use redisplay optimizations for displaying this buffer. */ |