/* GNU Emacs routines to deal with category tables.
- Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+ Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007
+ 2005, 2006, 2007, 2008, 2009
National Institute of Advanced Industrial Science and Technology (AIST)
Registration Number H14PRO021
Copyright (C) 2003
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 3, or (at your option)
-any later version.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
/* Here we handle three objects: category, category set, and category
\f
/* Category set staff. */
+static Lisp_Object hash_get_category_set P_ ((Lisp_Object, Lisp_Object));
+
+static Lisp_Object
+hash_get_category_set (table, category_set)
+ Lisp_Object table, category_set;
+{
+ Lisp_Object val;
+ struct Lisp_Hash_Table *h;
+ int i;
+ unsigned hash;
+
+ if (NILP (XCHAR_TABLE (table)->extras[1]))
+ XCHAR_TABLE (table)->extras[1]
+ = make_hash_table (Qequal, make_number (DEFAULT_HASH_SIZE),
+ make_float (DEFAULT_REHASH_SIZE),
+ make_float (DEFAULT_REHASH_THRESHOLD),
+ Qnil, Qnil, Qnil);
+ h = XHASH_TABLE (XCHAR_TABLE (table)->extras[1]);
+ i = hash_lookup (h, category_set, &hash);
+ if (i >= 0)
+ return HASH_KEY (h, i);
+ hash_put (h, category_set, Qnil, hash);
+ return category_set;
+}
+
+
DEFUN ("make-category-set", Fmake_category_set, Smake_category_set, 1, 1, 0,
doc: /* Return a newly created category-set which contains CATEGORIES.
CATEGORIES is a string of category mnemonics.
DEFUN ("define-category", Fdefine_category, Sdefine_category, 2, 3, 0,
doc: /* Define CATEGORY as a category which is described by DOCSTRING.
CATEGORY should be an ASCII printing character in the range ` ' to `~'.
-DOCSTRING is the documentation string of the category.
+DOCSTRING is the documentation string of the category. The first line
+should be a terse text (preferably less than 16 characters),
+and the rest lines should be the full description.
The category is defined only in category table TABLE, which defaults to
the current buffer's category table. */)
(category, docstring, table)
while (start <= end)
{
+ from = start, to = end;
category_set = char_table_ref_and_range (table, start, &from, &to);
if (CATEGORY_MEMBER (XFASTINT (category), category_set) != NILP (reset))
{
category_set = Fcopy_sequence (category_set);
SET_CATEGORY_SET (category_set, category, set_value);
- if (to > end)
- char_table_set_range (table, start, end, category_set);
- else
- char_table_set_range (table, start, to, category_set);
+ category_set = hash_get_category_set (table, category_set);
+ char_table_set_range (table, start, to, category_set);
}
start = to + 1;
}
Lisp_Object tail;
int default_result;
- if (CHAR_CHARSET (c1) == CHAR_CHARSET (c2))
+ if (EQ (CHAR_TABLE_REF (Vchar_script_table, c1),
+ CHAR_TABLE_REF (Vchar_script_table, c2)))
{
tail = Vword_separating_categories;
default_result = 0;
Lisp_Object elt = XCAR (tail);
if (CONSP (elt)
- && CATEGORYP (XCAR (elt))
- && CATEGORYP (XCDR (elt))
- && CATEGORY_MEMBER (XFASTINT (XCAR (elt)), category_set1)
- && CATEGORY_MEMBER (XFASTINT (XCDR (elt)), category_set2))
+ && (NILP (XCAR (elt))
+ || (CATEGORYP (XCAR (elt))
+ && CATEGORY_MEMBER (XFASTINT (XCAR (elt)), category_set1)))
+ && (NILP (XCDR (elt))
+ || (CATEGORYP (XCDR (elt))
+ && CATEGORY_MEMBER (XFASTINT (XCDR (elt)), category_set2))))
return !default_result;
}
return default_result;
Emacs treats a sequence of word constituent characters as a single
word (i.e. finds no word boundary between them) only if they belong to
-the same charset. But, exceptions are allowed in the following cases.
+the same script. But, exceptions are allowed in the following cases.
-\(1) The case that characters are in different charsets is controlled
+\(1) The case that characters are in different scripts is controlled
by the variable `word-combining-categories'.
-Emacs finds no word boundary between characters of different charsets
+Emacs finds no word boundary between characters of different scripts
if they have categories matching some element of this list.
More precisely, if an element of this list is a cons of category CAT1
and CAT2, and a multibyte character C1 which has CAT1 is followed by
C2 which has CAT2, there's no word boundary between C1 and C2.
-For instance, to tell that ASCII characters and Latin-1 characters can
-form a single word, the element `(?l . ?l)' should be in this list
-because both characters have the category `l' (Latin characters).
+For instance, to tell that Han characters followed by Hiragana
+characters can form a single word, the element `(?C . ?H)' should be
+in this list.
-\(2) The case that character are in the same charset is controlled by
+\(2) The case that character are in the same script is controlled by
the variable `word-separating-categories'.
-Emacs find a word boundary between characters of the same charset
+Emacs finds a word boundary between characters of the same script
if they have categories matching some element of this list.
More precisely, if an element of this list is a cons of category CAT1
and CAT2, and a multibyte character C1 which has CAT1 is followed by
C2 which has CAT2, there's a word boundary between C1 and C2.
-For instance, to tell that there's a word boundary between Japanese
-Hiragana and Japanese Kanji (both are in the same charset), the
-element `(?H . ?C) should be in this list. */);
+For instance, to tell that there's a word boundary between Hiragana
+and Katakana (both are in the same script `kana'),
+the element `(?H . ?K) should be in this list. */);
Vword_combining_categories = Qnil;