(skip_syntaxes): Fix previous change.

diff --git a/src/syntax.c b/src/syntax.c
index e16d8bc..de0ef90 100644 (file)
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -1731,6 +1731,9 @@ skip_syntaxes (forwardp, string, lim)
   if (XINT (lim) < BEGV)
     XSETFASTINT (lim, BEGV);
 
+  if (forward ? PT >= XFASTINT (lim) : PT <= XFASTINT (lim))
+    return 0;
+
   multibyte = (!NILP (current_buffer->enable_multibyte_characters)
               && (lim - PT != CHAR_TO_BYTE (lim) - PT_BYTE));
 
@@ -1774,27 +1777,28 @@ skip_syntaxes (forwardp, string, lim)
       {
        if (multibyte)
          {
-           if (pos < XINT (lim))
-             while (fastmap[(int) SYNTAX (FETCH_CHAR (pos_byte))])
-               {
-                 /* Since we already checked for multibyteness,
-                    avoid using INC_BOTH which checks again.  */
-                 INC_POS (pos_byte);
-                 pos++;
-                 if (pos >= XINT (lim))
-                   break;
-                 UPDATE_SYNTAX_TABLE_FORWARD (pos);
-               }
+           while (fastmap[(int) SYNTAX (FETCH_CHAR (pos_byte))])
+             {
+               /* Since we already checked for multibyteness,
+                  avoid using INC_BOTH which checks again.  */
+               INC_POS (pos_byte);
+               pos++;
+               if (pos >= XINT (lim))
+                 break;
+               UPDATE_SYNTAX_TABLE_FORWARD (pos);
+             }
          }
        else
          {
-           while (pos < XINT (lim))
+           while (1)
              {
                c = FETCH_BYTE (pos_byte);
                MAKE_CHAR_MULTIBYTE (c);
                if (! fastmap[(int) SYNTAX (c)])
                  break;
                pos++, pos_byte++;
+               if (pos >= XINT (lim))
+                 break;
                UPDATE_SYNTAX_TABLE_FORWARD (pos);
              }
          }
@@ -1803,13 +1807,15 @@ skip_syntaxes (forwardp, string, lim)
       {
        if (multibyte)
          {
-           while (pos > XINT (lim))
+           while (1)
              {
                int savepos = pos_byte;
                /* Since we already checked for multibyteness,
                   avoid using DEC_BOTH which checks again.  */
                pos--;
                DEC_POS (pos_byte);
+               if (pos <= XINT (lim))
+                 break;
                UPDATE_SYNTAX_TABLE_BACKWARD (pos);
                if (!fastmap[(int) SYNTAX (FETCH_CHAR (pos_byte))])
                  {
@@ -1821,18 +1827,17 @@ skip_syntaxes (forwardp, string, lim)
          }
        else
          {
-           if (pos > XINT (lim))
-             while (1)
-               {
-                 c = FETCH_BYTE (pos_byte - 1);
-                 MAKE_CHAR_MULTIBYTE (c);
-                 if (! fastmap[(int) SYNTAX (c)])
-                   break;
-                 pos--, pos_byte--;
-                 if (pos <= XINT (lim))
-                   break;
-                 UPDATE_SYNTAX_TABLE_BACKWARD (pos - 1);
-               }
+           while (1)
+             {
+               c = FETCH_BYTE (pos_byte - 1);
+               MAKE_CHAR_MULTIBYTE (c);
+               if (! fastmap[(int) SYNTAX (c)])
+                 break;
+               pos--, pos_byte--;
+               if (pos <= XINT (lim))
+                 break;
+               UPDATE_SYNTAX_TABLE_BACKWARD (pos - 1);
+             }
          }
       }