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//////////////////////////////////////////////////////////////////////////
//
// pgScript - PostgreSQL Tools
//
// Copyright (C) 2002 - 2014, The pgAdmin Development Team
// This software is released under the PostgreSQL Licence
//
//////////////////////////////////////////////////////////////////////////
#ifndef PGSNUMBER_H_
#define PGSNUMBER_H_
#include "pgscript/pgScript.h"
#include "pgscript/objects/pgsVariable.h"
class pgsRecord;
class pgsString;
/**
* A pgsNumber represents either a number or a string. If the data (a string)
* matches with a regular expression that represents a number then it is a
* number otherwise it is a string. The difference between a string stored
* in this object and a string stored in pgsString is that a string in pgsNumber
* cannot be concatenated with another one in pgsPlus.
*/
class pgsNumber : public pgsVariable
{
public:
virtual pgsOperand pgs_plus(const pgsVariable &rhs) const;
virtual pgsOperand pgs_minus(const pgsVariable &rhs) const;
virtual pgsOperand pgs_times(const pgsVariable &rhs) const;
virtual pgsOperand pgs_over(const pgsVariable &rhs) const;
virtual pgsOperand pgs_modulo(const pgsVariable &rhs) const;
virtual pgsOperand pgs_equal(const pgsVariable &rhs) const;
virtual pgsOperand pgs_different(const pgsVariable &rhs) const;
virtual pgsOperand pgs_greater(const pgsVariable &rhs) const;
virtual pgsOperand pgs_lower(const pgsVariable &rhs) const;
virtual pgsOperand pgs_lower_equal(const pgsVariable &rhs) const;
virtual pgsOperand pgs_greater_equal(const pgsVariable &rhs) const;
virtual pgsOperand pgs_not() const;
virtual bool pgs_is_true() const;
virtual pgsOperand pgs_almost_equal(const pgsVariable &rhs) const;
protected:
wxString m_data;
public:
explicit pgsNumber(const wxString &data, const bool &is_real = pgsInt);
virtual ~pgsNumber();
virtual pgsVariable *clone() const;
pgsNumber(const pgsNumber &that);
pgsNumber &operator =(const pgsNumber &that);
public:
virtual wxString value() const;
virtual pgsOperand eval(pgsVarMap &vars) const;
public:
bool is_valid() const;
static pgsTypes num_type(const wxString &num);
public:
virtual pgsNumber number() const;
virtual pgsRecord record() const;
virtual pgsString string() const;
};
#endif /*PGSNUMBER_H_*/
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