c-parse.in (_yylex): Remove CPP_BACKSLASH case.

	* c-parse.in (_yylex): Remove CPP_BACKSLASH case.
	* cp/spew.c: Similarly.
	* cpplex.c (_cpp_lex_token): Backslashes are now CPP_OTHER.
	* cppmacro.c (stringify_arg): Similarly.
	* cpplib.h (CPP_BACKSLASH): Delete.

From-SVN: r37182

gcc/ChangeLog

+2000-11-01  Neil Booth  <neilb@earthling.net>
+
+	* c-parse.in (_yylex): Remove CPP_BACKSLASH case.
+	* cp/spew.c: Similarly.
+	* cpplex.c (_cpp_lex_token): Backslashes are now CPP_OTHER.
+	* cppmacro.c (stringify_arg): Similarly.
+	* cpplib.h (CPP_BACKSLASH): Delete.
+
 2000-10-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* builtins.c (expand_builtin_strstr): New function.

gcc/c-parse.in

@@ -3259,7 +3259,6 @@ _yylex ()
       /* These tokens should not survive translation phase 4.  */
     case CPP_HASH:
     case CPP_PASTE:
-    case CPP_BACKSLASH:
       error ("syntax error before '%s' token", NAME(last_token));
       goto retry;
 

gcc/cp/spew.c

@@ -361,10 +361,6 @@ read_token (t)
       error ("syntax error before '#' token");
       goto retry;
 
-    case CPP_BACKSLASH:
-      error ("syntax error before '\\' token");
-      goto retry;
-
     default:
       abort ();
     }

gcc/cpplex.c

@@ -931,7 +931,7 @@ _cpp_lex_token (pfile, result)
 	result->type = CPP_QUERY;
 	buffer->read_ahead = EOF;
 	if (c == '\\')
-	  result->type = CPP_BACKSLASH;
+	  goto random_char;
 	else if (c != '?')
 	  goto do_switch;
       }

gcc/cpplib.h

@@ -116,7 +116,6 @@ struct htab;
   /* The remainder of the punctuation.  Order is not significant.  */	\
   OP(CPP_SEMICOLON,	";")	/* structure */	\
   OP(CPP_ELLIPSIS,	"...")			\
-  OP(CPP_BACKSLASH,	"\\")			\
   OP(CPP_PLUS_PLUS,	"++")	/* increment */	\
   OP(CPP_MINUS_MINUS,	"--")			\
   OP(CPP_DEREF,		"->")	/* accessors */	\

gcc/cppmacro.c

@@ -386,7 +386,7 @@ stringify_arg (pfile, arg)
 	dest = cpp_spell_token (pfile, token, dest);
       total_len = dest - start;
 
-      if (token->type == CPP_BACKSLASH)
+      if (token->type == CPP_OTHER && token->val.aux == '\\')
 	backslash_count++;
       else
 	backslash_count = 0;