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[xemacs-hg @ 2003-02-14 09:50:15 by ben] syntax-table fixes 1. the updating of mirror tables every time a syntax table was modified was taking up huge amounts of time so i added a dirty flag and made the updating "just-in-time". 2. no-longer-used char-table-entries were not getting "freed", generating tons of garbage. 3. syntax_match() was being incorrectly called on mirror tables in the cache, not the original syntax table. buffer.c, syntax.c: Move syntax table description from buffer.c to syntax.c. chartab.c, chartab.h: Free extra char table entries to avoid excessive garbage. Add flags for dirty and mirror_table_p to char tables. Add a back pointer from mirror tables to the original syntax table. When modifying a syntax table, don't update the mirror table right away, just mark as dirty. Add various asserts to make sure we are dealing with the right type of table (mirror or non-mirror). font-lock.c, syntax.c, syntax.h: Add entry to syntax caches for the non-mirror table. Set it appropriately when initializing the syntax table. Use it, not the mirror table, for calls to syntax_match(). Don't create a bogus float each time, just once at startup. Add some asserts, as in chartab.c. syntax.h: When retrieving the syntax code, check the dirty flag and update the mirror tables as appropriate. Add some asserts, as above.
author ben
date Fri, 14 Feb 2003 09:50:17 +0000
parents e38acbeb1cae
children ab71ad6ff3dd
line wrap: on
line source

/* XEmacs routines to deal with range tables.
   Copyright (C) 1995 Sun Microsystems, Inc.
   Copyright (C) 1995 Ben Wing.

This file is part of XEmacs.

XEmacs 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 2, or (at your option) any
later version.

XEmacs is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: Not in FSF. */

/* Extracted from rangetab.c by O. Galibert, 1998. */

#ifndef INCLUDED_rangetab_h_
#define INCLUDED_rangetab_h_

typedef struct range_table_entry range_table_entry;
struct range_table_entry
{
  EMACS_INT first;
  EMACS_INT last;
  Lisp_Object val;
};

typedef struct
{
  Dynarr_declare (range_table_entry);
} range_table_entry_dynarr;

struct Lisp_Range_Table
{
  struct lcrecord_header header;
  range_table_entry_dynarr *entries;
};
typedef struct Lisp_Range_Table Lisp_Range_Table;

DECLARE_LRECORD (range_table, Lisp_Range_Table);
#define XRANGE_TABLE(x) XRECORD (x, range_table, Lisp_Range_Table)
#define wrap_range_table(p) wrap_record (p, range_table)
#define RANGE_TABLEP(x) RECORDP (x, range_table)
#define CHECK_RANGE_TABLE(x) CHECK_RECORD (x, range_table)

#endif /* INCLUDED_rangetab_h_ */