Merge from emacs--devo--0

[gnu-emacs] / src / syntax.c

diff --git a/src/syntax.c b/src/syntax.c
index b0b4bdc00327f75ae45dbe3830e40a32363f8edd..f40900834a3b23ac24a51c64482cafc9c4fa7779 100644 (file)
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -1,6 +1,7 @@
 /* GNU Emacs routines to deal with syntax tables; also word and list parsing.
-   Copyright (C) 1985, 1987, 1993, 1994, 1995, 1997, 1998, 1999, 2002,
-                 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1985, 1987, 1993, 1994, 1995, 1997, 1998, 1999, 2001,
+                 2002, 2003, 2004, 2005, 2006, 2007
+                 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -893,7 +894,7 @@ DEFUN ("string-to-syntax", Fstring_to_syntax, Sstring_to_syntax, 1, 1, 0,
        doc: /* Convert a syntax specification STRING into syntax cell form.
 STRING should be a string as it is allowed as argument of
 `modify-syntax-entry'.  Value is the equivalent cons cell
-(CODE . MATCHING-CHAR) that can be used as value of a `syntax-table'
+\(CODE . MATCHING-CHAR) that can be used as value of a `syntax-table'
 text property.  */)
      (string)
      Lisp_Object string;
@@ -1029,6 +1030,11 @@ usage: (modify-syntax-entry CHAR NEWENTRY &optional SYNTAX-TABLE) */)
     SET_RAW_SYNTAX_ENTRY_RANGE (syntax_table, c, newentry);
   else
     SET_RAW_SYNTAX_ENTRY (syntax_table, XINT (c), newentry);
+
+  /* We clear the regexp cache, since character classes can now have
+     different values from those in the compiled regexps.*/
+  clear_regexp_cache ();
+
   return Qnil;
 }
 \f
@@ -1293,20 +1299,20 @@ scan_words (from, count)
          script = CHAR_TABLE_REF (Vchar_script_table, ch1);
          while (1)
            {
-             int temp_byte;
-
              if (from == beg)
                break;
-             temp_byte = dec_bytepos (from_byte);
+             DEC_BOTH (from, from_byte);
              UPDATE_SYNTAX_TABLE_BACKWARD (from);
-             ch0 = FETCH_CHAR_AS_MULTIBYTE (temp_byte);
+             ch0 = FETCH_CHAR_AS_MULTIBYTE (from_byte);
              code = SYNTAX (ch0);
              if ((code != Sword
                   && (! words_include_escapes
                       || (code != Sescape && code != Scharquote)))
                  || ! EQ (CHAR_TABLE_REF (Vchar_script_table, ch0), script))
-               break;
-             DEC_BOTH (from, from_byte);
+               {
+                 INC_BOTH (from, from_byte);
+                 break;
+               }
              ch1 = ch0;
            }
        }
@@ -1476,7 +1482,7 @@ skip_chars (forwardp, string, lim, handle_iso_classes)
              const unsigned char *class_beg = str + i_byte + 1;
              const unsigned char *class_end = class_beg;
              const unsigned char *class_limit = str + size_byte - 2;
-             /* Leave room for the null.        */
+             /* Leave room for the null.  */
              unsigned char class_name[CHAR_CLASS_MAX_LENGTH + 1];
              re_wctype_t cc;
 
@@ -2025,13 +2031,13 @@ skip_syntaxes (forwardp, string, lim)
                    p = GPT_ADDR;
                    stop = endp;
                  }
+               UPDATE_SYNTAX_TABLE_BACKWARD (pos - 1);
                prev_p = p;
                while (--p >= stop && ! CHAR_HEAD_P (*p));
                c = STRING_CHAR (p, MAX_MULTIBYTE_LENGTH);
                if (! fastmap[(int) SYNTAX (c)])
                  break;
                pos--, pos_byte -= prev_p - p;
-               UPDATE_SYNTAX_TABLE_BACKWARD (pos);
              }
          }
        else
@@ -2045,10 +2051,10 @@ skip_syntaxes (forwardp, string, lim)
                    p = GPT_ADDR;
                    stop = endp;
                  }
+               UPDATE_SYNTAX_TABLE_BACKWARD (pos - 1);
                if (! fastmap[(int) SYNTAX (p[-1])])
                  break;
                p--, pos--, pos_byte--;
-               UPDATE_SYNTAX_TABLE_BACKWARD (pos - 1);
              }
          }
       }
@@ -3265,7 +3271,7 @@ Fourth arg STOPBEFORE non-nil means stop when come to
  any character that starts a sexp.
 Fifth arg OLDSTATE is a list like what this function returns.
  It is used to initialize the state of the parse.  Elements number 1, 2, 6
- and 8 are ignored; you can leave off element 8 (the last) entirely.
+ and 8 are ignored.
 Sixth arg COMMENTSTOP non-nil means stop at the start of a comment.
  If it is symbol `syntax-table', stop after the start of a comment or a
  string, or after end of a comment or a string.  */)