/*
- * Project: libFIRM
- * File name: ir/debug/debugger.c
- * Purpose: Helper function for integerated debug support
- * Author: Michael Beck
- * Modified by:
- * Created: 2005
- * CVS-ID: $Id$
- * Copyright: (c) 2001-2007 Universität Karlsruhe
- * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
+ * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
+
+/**
+ * @file
+ * @brief Helper function for integerated debug support
+ * @author Michael Beck
+ * @date 2005
+ * @version $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
do {
c = next_char();
- } while (c == '_' || isalnum(c));
+ } while (isgraph(c));
unput();
lexer.len = lexer.curr_pos - lexer.s;
return tok_identifier;
- } else if (isdigit(c)) {
+ } else if (isdigit(c) || c == '-') {
unsigned number = 0;
+ unsigned sign = 0;
+
+ /* we support negative numbers as well, so one can easily set all bits with -1 */
+ if (c == '-') {
+ sign = 1;
+ c = next_char();
+ }
if (c == '0') {
c = next_char();
c = next_char();
}
unput();
- lexer.number = number;
+ lexer.number = sign ? 0 - number : number;
return tok_number;
}
else if (c == '\0')
return c;
} /* get_token */
-/**
- * returns the next token.
- */
-static unsigned next_token(void) {
- if (! lexer.has_token) {
- lexer.cur_token = get_token();
- lexer.has_token = 1;
- }
- return lexer.cur_token;
-} /* next_token */
-
-#define drop_token() lexer.has_token = 0
-
/**
* High level function to use from debugger interface
*