Merge from emacs-24; up to 2014-03-23T23:14:52Z!yamaoka@jpl.org

[bpt/emacs.git] / src / intervals.c

diff --git a/src/intervals.c b/src/intervals.c
index f65ce0e..703c0ce 100644 (file)
--- a/src/intervals.c
+++ b/src/intervals.c
@@ -1,5 +1,5 @@
 /* Code for doing intervals.
-   Copyright (C) 1993-1995, 1997-1998, 2001-2013 Free Software
+   Copyright (C) 1993-1995, 1997-1998, 2001-2014 Free Software
    Foundation, Inc.
 
 This file is part of GNU Emacs.
@@ -40,8 +40,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
-#define INTERVALS_INLINE EXTERN_INLINE
-
 #include <intprops.h>
 #include "lisp.h"
 #include "intervals.h"
@@ -62,16 +60,7 @@ static INTERVAL reproduce_tree (INTERVAL, INTERVAL);
 \f
 /* Utility functions for intervals.  */
 
-/* Use these functions to set Lisp_Object
-   or pointer slots of struct interval.  */
-
-static void
-set_interval_object (INTERVAL i, Lisp_Object obj)
-{
-  eassert (BUFFERP (obj) || STRINGP (obj));
-  i->up_obj = 1;
-  i->up.obj = obj;
-}
+/* Use these functions to set pointer slots of struct interval.  */
 
 static void
 set_interval_left (INTERVAL i, INTERVAL left)
@@ -678,6 +667,7 @@ find_interval (register INTERVAL tree, register ptrdiff_t position)
 
   while (1)
     {
+      eassert (tree);
       if (relative_position < LEFT_TOTAL_LENGTH (tree))
        {
          tree = tree->left;
@@ -1406,10 +1396,7 @@ offset_intervals (struct buffer *buffer, ptrdiff_t start, ptrdiff_t length)
     adjust_intervals_for_insertion (buffer_intervals (buffer),
                                    start, length);
   else
-    {
-      lint_assume (- TYPE_MAXIMUM (ptrdiff_t) <= length);
-      adjust_intervals_for_deletion (buffer, start, -length);
-    }
+    adjust_intervals_for_deletion (buffer, start, -length);
 }
 \f
 /* Merge interval I with its lexicographic successor. The resulting
@@ -1794,8 +1781,7 @@ temp_set_point_both (struct buffer *buffer,
                     ptrdiff_t charpos, ptrdiff_t bytepos)
 {
   /* In a single-byte buffer, the two positions must be equal.  */
-  if (BUF_ZV (buffer) == BUF_ZV_BYTE (buffer))
-    eassert (charpos == bytepos);
+  eassert (BUF_ZV (buffer) != BUF_ZV_BYTE (buffer) || charpos == bytepos);
 
   eassert (charpos <= bytepos);
   eassert (charpos <= BUF_ZV (buffer) || BUF_BEGV (buffer) <= charpos);
@@ -1821,6 +1807,18 @@ set_point (ptrdiff_t charpos)
   set_point_both (charpos, buf_charpos_to_bytepos (current_buffer, charpos));
 }
 
+/* Set PT from MARKER's clipped position.  */
+
+void
+set_point_from_marker (Lisp_Object marker)
+{
+  if (XMARKER (marker)->buffer != current_buffer)
+    signal_error ("Marker points into wrong buffer", marker);
+  set_point_both
+    (clip_to_bounds (BEGV, marker_position (marker), ZV),
+     clip_to_bounds (BEGV_BYTE, marker_byte_position (marker), ZV_BYTE));
+}
+
 /* If there's an invisible character at position POS + TEST_OFFS in the
    current buffer, and the invisible property has a `stickiness' such that
    inserting a character at position POS would inherit the property it,
@@ -2196,20 +2194,15 @@ get_property_and_range (ptrdiff_t pos, Lisp_Object prop, Lisp_Object *val,
 /* Return the proper local keymap TYPE for position POSITION in
    BUFFER; TYPE should be one of `keymap' or `local-map'.  Use the map
    specified by the PROP property, if any.  Otherwise, if TYPE is
-   `local-map' use BUFFER's local map.
-
-   POSITION must be in the accessible part of BUFFER.  */
+   `local-map' use BUFFER's local map.  */
 
 Lisp_Object
-get_local_map (register ptrdiff_t position, register struct buffer *buffer,
-              Lisp_Object type)
+get_local_map (ptrdiff_t position, struct buffer *buffer, Lisp_Object type)
 {
   Lisp_Object prop, lispy_position, lispy_buffer;
   ptrdiff_t old_begv, old_zv, old_begv_byte, old_zv_byte;
 
-  /* Perhaps we should just change `position' to the limit.  */
-  if (position > BUF_ZV (buffer) || position < BUF_BEGV (buffer))
-    emacs_abort ();
+  position = clip_to_bounds (BUF_BEGV (buffer), position, BUF_ZV (buffer));
 
   /* Ignore narrowing, so that a local map continues to be valid even if
      the visible region contains no characters and hence no properties.  */
@@ -2231,7 +2224,7 @@ get_local_map (register ptrdiff_t position, register struct buffer *buffer,
      editing a field with a `local-map' property, we want insertion at the end
      to obey the `local-map' property.  */
   if (NILP (prop))
-    prop = get_pos_property (lispy_position, type, lispy_buffer);
+    prop = Fget_pos_property (lispy_position, type, lispy_buffer);
 
   SET_BUF_BEGV_BOTH (buffer, old_begv, old_begv_byte);
   SET_BUF_ZV_BOTH (buffer, old_zv, old_zv_byte);