* xterm.c (x_sync_with_move): Really wait 0.5s, not 0.0005s.

[gnu-emacs] / src / syntax.c

diff --git a/src/syntax.c b/src/syntax.c
index f5b37303a4a06ec4f832e189232b2f28408f0055..4166ee211c76eadad95dc1b15ce70c53a6278131 100644 (file)
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -1,5 +1,5 @@
 /* GNU Emacs routines to deal with syntax tables; also word and list parsing.
-   Copyright (C) 1985, 1987, 1993-1995, 1997-1999, 2001-2013 Free
+   Copyright (C) 1985, 1987, 1993-1995, 1997-1999, 2001-2014 Free
    Software Foundation, Inc.
 
 This file is part of GNU Emacs.
@@ -20,8 +20,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
-#define SYNTAX_INLINE EXTERN_INLINE
-
 #include <sys/types.h>
 
 #include "lisp.h"
@@ -31,13 +29,15 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include "keymap.h"
 #include "regex.h"
 
-/* Make syntax table lookup grant data in gl_state.  */
-#define SYNTAX_ENTRY_VIA_PROPERTY
-
 #include "syntax.h"
 #include "intervals.h"
 #include "category.h"
 
+/* Make syntax table lookup grant data in gl_state.  */
+#define SYNTAX(c) syntax_property (c, 1)
+#define SYNTAX_ENTRY(c) syntax_property_entry (c, 1)
+#define SYNTAX_WITH_FLAGS(c) syntax_property_with_flags (c, 1)
+
 /* Eight single-bit flags have the following meanings:
   1. This character is the first of a two-character comment-start sequence.
   2. This character is the second of a two-character comment-start sequence.
@@ -530,17 +530,6 @@ find_defun_start (ptrdiff_t pos, ptrdiff_t pos_byte)
 {
   ptrdiff_t opoint = PT, opoint_byte = PT_BYTE;
 
-  if (!open_paren_in_column_0_is_defun_start)
-    {
-      find_start_value = BEGV;
-      find_start_value_byte = BEGV_BYTE;
-      find_start_buffer = current_buffer;
-      find_start_modiff = MODIFF;
-      find_start_begv = BEGV;
-      find_start_pos = pos;
-      return BEGV;
-    }
-
   /* Use previous finding, if it's valid and applies to this inquiry.  */
   if (current_buffer == find_start_buffer
       /* Reuse the defun-start even if POS is a little farther on.
@@ -552,6 +541,13 @@ find_defun_start (ptrdiff_t pos, ptrdiff_t pos_byte)
       && MODIFF == find_start_modiff)
     return find_start_value;
 
+  if (!open_paren_in_column_0_is_defun_start)
+    {
+      find_start_value = BEGV;
+      find_start_value_byte = BEGV_BYTE;
+      goto found;
+    }
+
   /* Back up to start of line.  */
   scan_newline (pos, pos_byte, BEGV, BEGV_BYTE, -1, 1);
 
@@ -582,13 +578,14 @@ find_defun_start (ptrdiff_t pos, ptrdiff_t pos_byte)
   /* Record what we found, for the next try.  */
   find_start_value = PT;
   find_start_value_byte = PT_BYTE;
+  TEMP_SET_PT_BOTH (opoint, opoint_byte);
+
+ found:
   find_start_buffer = current_buffer;
   find_start_modiff = MODIFF;
   find_start_begv = BEGV;
   find_start_pos = pos;
 
-  TEMP_SET_PT_BOTH (opoint, opoint_byte);
-
   return find_start_value;
 }
 \f
@@ -838,10 +835,10 @@ back_comment (ptrdiff_t from, ptrdiff_t from_byte, ptrdiff_t stop,
       from_byte = comstart_byte;
       UPDATE_SYNTAX_TABLE_FORWARD (from - 1);
     }
-  else
+  else lossage:
     {
       struct lisp_parse_state state;
-    lossage:
+      bool adjusted = true;
       /* We had two kinds of string delimiters mixed up
         together.  Decode this going forwards.
         Scan fwd from a known safe place (beginning-of-defun)
@@ -852,6 +849,7 @@ back_comment (ptrdiff_t from, ptrdiff_t from_byte, ptrdiff_t stop,
        {
          defun_start = find_defun_start (comment_end, comment_end_byte);
          defun_start_byte = find_start_value_byte;
+         adjusted = (defun_start > BEGV);
        }
       do
        {
@@ -860,6 +858,16 @@ back_comment (ptrdiff_t from, ptrdiff_t from_byte, ptrdiff_t stop,
                              comment_end, TYPE_MINIMUM (EMACS_INT),
                              0, Qnil, 0);
          defun_start = comment_end;
+         if (!adjusted)
+           {
+             adjusted = true;
+             find_start_value
+               = CONSP (state.levelstarts) ? XINT (XCAR (state.levelstarts))
+               : state.thislevelstart >= 0 ? state.thislevelstart
+               : find_start_value;
+             find_start_value_byte = CHAR_TO_BYTE (find_start_value);
+           }
+
          if (state.incomment == (comnested ? 1 : -1)
              && state.comstyle == comstyle)
            from = state.comstr_start;
@@ -1485,7 +1493,7 @@ and the function returns nil.  Field boundaries are not noticed if
 
   /* Avoid jumping out of an input field.  */
   tmp = Fconstrain_to_field (make_number (val), make_number (PT),
-                            Qt, Qnil, Qnil);
+                            Qnil, Qnil, Qnil);
   val = XFASTINT (tmp);
 
   SET_PT (val);
@@ -1532,7 +1540,8 @@ DEFUN ("skip-syntax-backward", Fskip_syntax_backward, Sskip_syntax_backward, 1,
 SYNTAX is a string of syntax code characters.
 Stop on reaching a char whose syntax is not in SYNTAX, or at position LIM.
 If SYNTAX starts with ^, skip characters whose syntax is NOT in SYNTAX.
-This function returns the distance traveled, either zero or negative.  */)
+This function returns either zero or a negative number, and the absolute value
+of this is the distance traveled.  */)
   (Lisp_Object syntax, Lisp_Object lim)
 {
   return skip_syntaxes (0, syntax, lim);
@@ -3486,9 +3495,9 @@ init_syntax_once (void)
   /* This has to be done here, before we call Fmake_char_table.  */
   DEFSYM (Qsyntax_table, "syntax-table");
 
-  /* Intern_C_String this now in case it isn't already done.
-     Setting this variable twice is harmless.
-     But don't staticpro it here--that is done in alloc.c.  */
+  /* This variable is DEFSYMed in alloc.c and not initialized yet, so
+     intern it here.  NOTE: you must guarantee that init_syntax_once
+     is called before all other users of this variable.  */
   Qchar_table_extra_slots = intern_c_string ("char-table-extra-slots");
 
   /* Create objects which can be shared among syntax tables.  */