X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/cf5db374182dd588ceb30425e2ea8a31772bed11..7889775856af24b29d4613231e7d8be0217064c0:/src/indent.h

diff --git a/src/indent.h b/src/indent.h
index 91d8f44c1a..ddfd16a16d 100644
--- a/src/indent.h
+++ b/src/indent.h
@@ -1,5 +1,6 @@
 /* Definitions for interface to indent.c
-   Copyright (C) 1985, 1986 Free Software Foundation, Inc.
+   Copyright (C) 1985, 1986, 2002, 2003, 2004,
+                 2005, 2006 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -15,13 +16,31 @@ 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., 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;
@@ -29,10 +48,13 @@ struct position
     /* 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;
@@ -42,9 +64,13 @@ extern int last_known_column_point;
 /* Return true iff 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) */