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#ifndef CONDPARSER_H
#define CONDPARSER_H
/**
* Copyright (C) 1997-2015 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 ENABLED_SECTIONS in Doxygen
*
* Features used:
* Operators:
* && AND operator
* || OR operator
* ! NOT operator
*/
#include <qcstring.h>
class CondParser
{
// public functions
public:
CondParser() : m_e(0), m_tokenType(NOTHING) {}
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
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