Imported Upstream version 1.8.3upstream/1.8.3

1 files changed, 75 insertions, 0 deletions

diff --git a/src/condparser.h b/src/condparser.h
new file mode 100644
index 0000000..74a05cf
--- /dev/null
+++ b/src/condparser.h
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+#ifndef CONDPARSER_H
+#define CONDPARSER_H
+
+/**
+ * Copyright (C) 1997-2012 by Dimitri van Heesch.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation under the terms of the GNU General Public License is hereby 
+ * granted. No representations are made about the suitability of this software 
+ * for any purpose. It is provided "as is" without express or implied warranty.
+ * See the GNU General Public License for more details.
+ *
+ * Documents produced by Doxygen are derivative works derived from the
+ * input used in their production; they are not affected by this license.
+ *
+ * C++ Expression parser for EXTABLED_SETIONS in Doxygen
+ *
+ * Features used:
+ *     Operators:
+ *         &&    AND operator
+ *         ||    OR  operator
+ *         !     NOT operator
+ */
+
+#include <qcstring.h>
+
+class CondParser
+{
+  // public functions
+  public:
+    bool parse(const char *fileName,int lineNr,const char *expr);
+
+    // enumerations
+  private:
+    enum TOKENTYPE 
+    {
+      NOTHING = -1, 
+      DELIMITER, 
+      VARIABLE, 
+      UNKNOWN
+    };
+    enum OPERATOR_ID 
+    {
+      UNKNOWN_OP = -1, 
+      AND = 1, 
+      OR, 
+      NOT
+    }; 
+
+    // data
+  private:
+
+    QCString m_err;                 //!< error state
+    QCString m_expr;                //!< holds the expression
+    const char *m_e;                //!< points to a character in expr
+
+    QCString m_token;               //!< holds the token
+    TOKENTYPE m_tokenType;          //!< type of the token
+
+    // private functions
+  private:
+    void getToken();
+
+    bool parseLevel1();
+    bool parseLevel2();
+    bool parseLevel3();
+    bool parseVar();
+
+    bool evalOperator(const int opId, bool lhs, bool rhs);
+    bool evalVariable(const char *varName);
+    int getOperatorId(const QCString &opName);
+};
+
+#endif
+