Changeset 1118 for code/branches/input/src/util/ExprParser.h

Timestamp:

Apr 20, 2008, 4:31:03 PM (16 years ago)

Author:

rgrieder

Message:

• classed FloatParser to ExprParser class

File:

• code/branches/input/src/util/ExprParser.h (moved) (moved from code/branches/input/src/util/FloatParser.h) (2 diffs)

code/branches/input/src/util/ExprParser.h

@@ -1 @@
-//FloatParser.h
+/*
+ *   ORXONOX - the hottest 3D action shooter ever to exist
+ *                    > www.orxonox.net <
+ *
+ *
+ *   License notice:
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation; either version 2
+ *   of the License, or (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ *   Author:
+ *      Reto Grieder
+ *   Co-authors:
+ *      ...
+ *
+ */
+
+/**
+  @file
+  @brief Declaration of FloatParser
+*/
 
 #ifndef _FloatParser_H__
@@ -5 +36 @@
 
 #include "UtilPrereqs.h"
+#include <string>
+
+class _UtilExport ExprParser
+{
+public:
+  enum binary_operator
+  {
+    b_plus,
+    b_minus,
+    mal,
+    durch,
+    modulo,
+    hoch,
+    undef,
+    oder,
+    und,
+    gleich,
+    b_nicht,
+    kleiner,
+    groesser,
+    ungleich,
+    kleinergleich,
+    groessergleich
+  };
+
+  enum unary_operator
+  {
+    u_plus,
+    u_minus,
+    u_nicht 
+  };
+
+
+  ExprParser(std::string& str);
+  std::string& getRemains() { return  this->remains_; }
+  double       getResult()  { return  this->result_; }
+  bool         getSuccess() { return !this->failed_; }
+
+private:
+  double parse_expr_1();
+  double parse_expr_2();
+  double parse_expr_3();
+  double parse_expr_4();
+  double parse_expr_5();
+  double parse_expr_6();
+  double parse_expr_7();
+  double parse_expr_8();
+  char* parse_word(char* str);
+  binary_operator parse_binary_operator();
+  unary_operator parse_unary_operator();
+
+  double parse_argument();
+  double parse_last_argument();
+
+  binary_operator op;
+  const char* reading_stream;
+  bool failed_;
+  double result_;
+  std::string remains_;
+
+};
 
 //Endzeichen für float expression: ')', '}', ']', ',', ';'