(update_syntax_table): Fix calculations using offset.

(skip_chars): Fix loop termination condition.

1 files changed, 26 insertions, 26 deletions

diff --git a/src/syntax.c b/src/syntax.c
index 68ef32828c4..1b05ed57204 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -130,8 +130,8 @@ update_syntax_table (charpos, count, init, object)
       invalidate = 0;
       if (NULL_INTERVAL_P (i))
         return;
-      gl_state.b_property = i->position - 1;
-      gl_state.e_property = INTERVAL_LAST_POS (i);
+      gl_state.b_property = i->position - 1 - gl_state.offset;
+      gl_state.e_property = INTERVAL_LAST_POS (i) - gl_state.offset;
       goto update;
     }
   oldi = i = count > 0 ? gl_state.forward_i : gl_state.backward_i;
@@ -151,7 +151,7 @@ update_syntax_table (charpos, count, init, object)
           invalidate = 0;
           gl_state.right_ok = 1;        /* Invalidate the other end.  */
           gl_state.forward_i = i;
-          gl_state.e_property = INTERVAL_LAST_POS (i);
+          gl_state.e_property = INTERVAL_LAST_POS (i) - gl_state.offset;
         }
     } 
   else if (charpos >= INTERVAL_LAST_POS (i)) /* Move right.  */
@@ -165,7 +165,7 @@ update_syntax_table (charpos, count, init, object)
           invalidate = 0;
           gl_state.left_ok = 1;         /* Invalidate the other end.  */
           gl_state.backward_i = i;
-          gl_state.b_property = i->position - 1;
+          gl_state.b_property = i->position - 1 - gl_state.offset;
         }
     }
   else if (count > 0 ? gl_state.right_ok : gl_state.left_ok)
@@ -187,13 +187,13 @@ update_syntax_table (charpos, count, init, object)
         {
           gl_state.backward_i = i;
           gl_state.left_ok = 1;         /* Invalidate the other end.  */
-          gl_state.b_property = i->position - 1;
+          gl_state.b_property = i->position - 1 - gl_state.offset;
         } 
       else 
         {
           gl_state.forward_i = i;       
           gl_state.right_ok = 1;        /* Invalidate the other end.  */
-          gl_state.e_property = INTERVAL_LAST_POS (i);
+          gl_state.e_property = INTERVAL_LAST_POS (i) - gl_state.offset;
         }
     }
 
@@ -246,12 +246,12 @@ update_syntax_table (charpos, count, init, object)
     {
       if (count > 0) 
         {
-          gl_state.e_property = i->position;
+          gl_state.e_property = i->position - gl_state.offset;
           gl_state.forward_i = i;
         }
       else 
         {
-          gl_state.b_property = i->position + LENGTH (i) - 1;
+          gl_state.b_property = i->position + LENGTH (i) - 1 - gl_state.offset;
           gl_state.backward_i = i;
         }
     }    
@@ -1370,15 +1370,17 @@ skip_chars (forwardp, syntaxp, string, lim)
           {
             if (multibyte)
               {
-                while (pos < XINT (lim)
-                       && 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++;
-                    UPDATE_SYNTAX_TABLE_FORWARD (pos);
-                  }
+                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);
+                    }
               }
             else
               {
@@ -1412,16 +1414,14 @@ skip_chars (forwardp, syntaxp, string, lim)
               }
             else
               {
-                while (pos > XINT (lim))
-                  {
-                    pos--;
-                    UPDATE_SYNTAX_TABLE_BACKWARD (pos);
-                    if (!fastmap[(int) SYNTAX (FETCH_BYTE (pos))])
-                      {
-                        pos++;
+                if (pos > XINT (lim))
+                  while (fastmap[(int) SYNTAX (FETCH_BYTE (pos - 1))])
+                    {
+                      pos--;
+                      if (pos <= XINT (lim))
                         break;
-                      }
-                  }
+                      UPDATE_SYNTAX_TABLE_BACKWARD (pos - 1);
+                    }
               }
           }
       }