Update copyright year to 2015

[gnu-emacs] / src / buffer.c

diff --git a/src/buffer.c b/src/buffer.c
index 80791a1fdb1b1c87a18a769707304b06c607b040..0daa232579548c1dd5f2620a3e9f76fd06185767 100644 (file)
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -1,6 +1,7 @@
 /* Buffer manipulation primitives for GNU Emacs.
 
-Copyright (C) 1985-1989, 1993-1995, 1997-2014 Free Software Foundation, Inc.
+Copyright (C) 1985-1989, 1993-1995, 1997-2015 Free Software Foundation,
+Inc.
 
 This file is part of GNU Emacs.
 
@@ -2184,12 +2185,20 @@ set_buffer_if_live (Lisp_Object buffer)
 }
 \f
 DEFUN ("barf-if-buffer-read-only", Fbarf_if_buffer_read_only,
-                                  Sbarf_if_buffer_read_only, 0, 0, 0,
-       doc: /* Signal a `buffer-read-only' error if the current buffer is read-only.  */)
-  (void)
+                                  Sbarf_if_buffer_read_only, 0, 1, 0,
+       doc: /* Signal a `buffer-read-only' error if the current buffer is read-only.
+If the text under POSITION (which defaults to point) has the
+`inhibit-read-only' text property set, the error will not be raised.  */)
+  (Lisp_Object pos)
 {
+  if (NILP (pos))
+    XSETFASTINT (pos, PT);
+  else
+    CHECK_NUMBER (pos);
+
   if (!NILP (BVAR (current_buffer, read_only))
-      && NILP (Vinhibit_read_only))
+      && NILP (Vinhibit_read_only)
+      && NILP (Fget_text_property (pos, Qinhibit_read_only, Qnil)))
     xsignal1 (Qbuffer_read_only, Fcurrent_buffer ());
   return Qnil;
 }
@@ -5216,16 +5225,14 @@ init_buffer_once (void)
 
   QSFundamental = build_pure_c_string ("Fundamental");
 
-  Qfundamental_mode = intern_c_string ("fundamental-mode");
+  DEFSYM (Qfundamental_mode, "fundamental-mode");
   bset_major_mode (&buffer_defaults, Qfundamental_mode);
 
-  Qmode_class = intern_c_string ("mode-class");
-
-  Qprotected_field = intern_c_string ("protected-field");
-
-  Qpermanent_local = intern_c_string ("permanent-local");
+  DEFSYM (Qmode_class, "mode-class");
+  DEFSYM (Qprotected_field, "protected-field");
 
-  Qkill_buffer_hook = intern_c_string ("kill-buffer-hook");
+  DEFSYM (Qpermanent_local, "permanent-local");
+  DEFSYM (Qkill_buffer_hook, "kill-buffer-hook");
   Fput (Qkill_buffer_hook, Qpermanent_local, Qt);
 
   /* super-magic invisible buffer */
@@ -5389,13 +5396,8 @@ syms_of_buffer (void)
   last_overlay_modification_hooks
     = Fmake_vector (make_number (10), Qnil);
 
-  staticpro (&Qfundamental_mode);
-  staticpro (&Qmode_class);
   staticpro (&QSFundamental);
   staticpro (&Vbuffer_alist);
-  staticpro (&Qprotected_field);
-  staticpro (&Qpermanent_local);
-  staticpro (&Qkill_buffer_hook);
 
   DEFSYM (Qchoice, "choice");
   DEFSYM (Qleft, "left");
@@ -6065,9 +6067,9 @@ from happening repeatedly and making Emacs nonfunctional.  */);
               doc: /* List of functions to call after each text change.
 Three arguments are passed to each function: the positions of
 the beginning and end of the range of changed text,
-and the length in bytes of the pre-change text replaced by that range.
+and the length in chars of the pre-change text replaced by that range.
 \(For an insertion, the pre-change length is zero;
-for a deletion, that length is the number of bytes deleted,
+for a deletion, that length is the number of chars deleted,
 and the post-change beginning and end are at the same place.)
 
 Buffer changes made while executing the `after-change-functions'