/* Definitions for interface to indent.c
- Copyright (C) 1985, 1986 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1986, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007 Free Software Foundation, Inc.
This file is part of GNU Emacs.
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 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
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. */
+/* We introduce new member `tab_offset'. We need it because of the
+ existence of wide-column characters. There is a case that the
+ line-break occurs at a wide-column character and the number of
+ colums of the line gets less than width.
+
+ Example (where W_ stands for a wide-column character):
+ ----------
+ abcdefgh\\
+ W_
+ ----------
+
+ To handle this case, we should not calculate the tab offset by
+ tab_offset += width;
+
+ Instead, we must remember tab_offset of the line.
+
+ */
struct position
{
int bufpos;
+ int bytepos;
int hpos;
int vpos;
int prevhpos;
/* Number of characters we have already handled
from the before and after strings at this position. */
int ovstring_chars_done;
+ int tab_offset;
};
-struct position *compute_motion ();
-struct position *vmotion ();
+struct position *compute_motion P_ ((int, int, int, int, int, int, int,
+ int, int, int, struct window *));
+struct position *vmotion P_ ((int, int, struct window *));
+int skip_invisible P_ ((int, int *, int, Lisp_Object));
/* Value of point when current_column was called */
extern int last_known_column_point;
/* Functions for dealing with the column cache. */
-/* Return true iff the display table DISPTAB specifies the same widths
+/* Return true if the display table DISPTAB specifies the same widths
for characters as WIDTHTAB. We use this to decide when to
invalidate the buffer's column_cache. */
-extern int disptab_matches_widthtab ( /* struct Lisp_Vector *disptab,
- struct Lisp_Vector *widthtab */ );
+int disptab_matches_widthtab P_ ((struct Lisp_Char_Table *disptab,
+ struct Lisp_Vector *widthtab));
/* Recompute BUF's width table, using the display table DISPTAB. */
-extern void recompute_width_table ( /* struct buffer *buf,
- struct Lisp_Vector *disptab */ );
+void recompute_width_table P_ ((struct buffer *buf,
+ struct Lisp_Char_Table *disptab));
+
+
+/* arch-tag: f9feb373-5bff-4f4f-9198-94805d00cfd7
+ (do not change this comment) */