/* GNU Emacs routines to deal with case tables.
- Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 2002, 2003, 2004,
+ 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
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., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
-/* Written by Howard Gayle. See chartab.c for details. */
+/* Written by Howard Gayle. */
#include <config.h>
#include "lisp.h"
static void shuffle ();
DEFUN ("case-table-p", Fcase_table_p, Scase_table_p, 1, 1, 0,
- "Return t iff OBJECT is a case table.\n\
-See `set-case-table' for more information on these data structures.")
- (object)
+ doc: /* Return t iff OBJECT is a case table.
+See `set-case-table' for more information on these data structures. */)
+ (object)
Lisp_Object object;
{
Lisp_Object up, canon, eqv;
check_case_table (obj)
Lisp_Object obj;
{
- register Lisp_Object tem;
-
- while (tem = Fcase_table_p (obj), NILP (tem))
- obj = wrong_type_argument (Qcase_table_p, obj);
+ CHECK_TYPE (!NILP (Fcase_table_p (obj)), Qcase_table_p, obj);
return (obj);
-}
+}
DEFUN ("current-case-table", Fcurrent_case_table, Scurrent_case_table, 0, 0, 0,
- "Return the case table of the current buffer.")
- ()
+ doc: /* Return the case table of the current buffer. */)
+ ()
{
return current_buffer->downcase_table;
}
DEFUN ("standard-case-table", Fstandard_case_table, Sstandard_case_table, 0, 0, 0,
- "Return the standard case table.\n\
-This is the one used for new buffers.")
- ()
+ doc: /* Return the standard case table.
+This is the one used for new buffers. */)
+ ()
{
return Vascii_downcase_table;
}
static Lisp_Object set_case_table ();
DEFUN ("set-case-table", Fset_case_table, Sset_case_table, 1, 1, 0,
- "Select a new case table for the current buffer.\n\
-A case table is a char-table which maps characters\n\
-to their lower-case equivalents. It also has three \"extra\" slots\n\
-which may be additional char-tables or nil.\n\
-These slots are called UPCASE, CANONICALIZE and EQUIVALENCES.\n\
-UPCASE maps each character to its upper-case equivalent;\n\
- if lower and upper case characters are in 1-1 correspondence,\n\
- you may use nil and the upcase table will be deduced from DOWNCASE.\n\
-CANONICALIZE maps each character to a canonical equivalent;\n\
- any two characters that are related by case-conversion have the same\n\
- canonical equivalent character; it may be nil, in which case it is\n\
- deduced from DOWNCASE and UPCASE.\n\
-EQUIVALENCES is a map that cyclicly permutes each equivalence class\n\
- (of characters with the same canonical equivalent); it may be nil,\n\
- in which case it is deduced from CANONICALIZE.")
- (table)
+ doc: /* Select a new case table for the current buffer.
+A case table is a char-table which maps characters
+to their lower-case equivalents. It also has three \"extra\" slots
+which may be additional char-tables or nil.
+These slots are called UPCASE, CANONICALIZE and EQUIVALENCES.
+UPCASE maps each non-upper-case character to its upper-case equivalent.
+ (The value in UPCASE for an upper-case character is never used.)
+ If lower and upper case characters are in 1-1 correspondence,
+ you may use nil and the upcase table will be deduced from DOWNCASE.
+CANONICALIZE maps each character to a canonical equivalent;
+ any two characters that are related by case-conversion have the same
+ canonical equivalent character; it may be nil, in which case it is
+ deduced from DOWNCASE and UPCASE.
+EQUIVALENCES is a map that cyclicly permutes each equivalence class
+ (of characters with the same canonical equivalent); it may be nil,
+ in which case it is deduced from CANONICALIZE. */)
+ (table)
Lisp_Object table;
{
return set_case_table (table, 0);
}
DEFUN ("set-standard-case-table", Fset_standard_case_table, Sset_standard_case_table, 1, 1, 0,
- "Select a new standard case table for new buffers.\n\
-See `set-case-table' for more info on case tables.")
- (table)
+ doc: /* Select a new standard case table for new buffers.
+See `set-case-table' for more info on case tables. */)
+ (table)
Lisp_Object table;
{
return set_case_table (table, 1);
if (NILP (up))
{
up = Fmake_char_table (Qcase_table, Qnil);
- map_char_table (set_identity, Qnil, table, up, 0, indices);
- map_char_table (shuffle, Qnil, table, up, 0, indices);
+ map_char_table (set_identity, Qnil, table, table, up, 0, indices);
+ map_char_table (shuffle, Qnil, table, table, up, 0, indices);
XCHAR_TABLE (table)->extras[0] = up;
}
{
canon = Fmake_char_table (Qcase_table, Qnil);
XCHAR_TABLE (table)->extras[1] = canon;
- map_char_table (set_canon, Qnil, table, table, 0, indices);
+ map_char_table (set_canon, Qnil, table, table, table, 0, indices);
}
if (NILP (eqv))
{
eqv = Fmake_char_table (Qcase_table, Qnil);
- map_char_table (set_identity, Qnil, canon, eqv, 0, indices);
- map_char_table (shuffle, Qnil, canon, eqv, 0, indices);
+ map_char_table (set_identity, Qnil, canon, canon, eqv, 0, indices);
+ map_char_table (shuffle, Qnil, canon, canon, eqv, 0, indices);
XCHAR_TABLE (table)->extras[2] = eqv;
}
+ /* This is so set_image_of_range_1 in regex.c can find the EQV table. */
+ XCHAR_TABLE (canon)->extras[2] = eqv;
+
if (standard)
- Vascii_downcase_table = table;
+ {
+ Vascii_downcase_table = table;
+ Vascii_upcase_table = up;
+ Vascii_canon_table = canon;
+ Vascii_eqv_table = eqv;
+ }
else
{
current_buffer->downcase_table = table;
}
}
\f
+void
init_casetab_once ()
{
register int i;
: i)));
XCHAR_TABLE (down)->extras[2] = Fcopy_sequence (up);
+
+ /* Fill in what isn't filled in. */
+ set_case_table (down, 1);
}
+void
syms_of_casetab ()
{
Qcase_table_p = intern ("case-table-p");
defsubr (&Sset_case_table);
defsubr (&Sset_standard_case_table);
}
+
+/* arch-tag: e06388ad-99fe-40ec-ba67-9d010fcc4916
+ (do not change this comment) */