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98 lines
2.3 KiB
C++
98 lines
2.3 KiB
C++
//////////////////////////////////////////////////////////////////////////
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//
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// pgScript - PostgreSQL Tools
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//
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// Copyright (C) 2002 - 2016, The pgAdmin Development Team
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// This software is released under the PostgreSQL Licence
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//
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//////////////////////////////////////////////////////////////////////////
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#ifndef PGSNUMBER_H_
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#define PGSNUMBER_H_
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#include "pgscript/pgScript.h"
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#include "pgscript/objects/pgsVariable.h"
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class pgsRecord;
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class pgsString;
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/**
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* A pgsNumber represents either a number or a string. If the data (a string)
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* matches with a regular expression that represents a number then it is a
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* number otherwise it is a string. The difference between a string stored
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* in this object and a string stored in pgsString is that a string in pgsNumber
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* cannot be concatenated with another one in pgsPlus.
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*/
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class pgsNumber : public pgsVariable
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{
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public:
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virtual pgsOperand pgs_plus(const pgsVariable &rhs) const;
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virtual pgsOperand pgs_minus(const pgsVariable &rhs) const;
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virtual pgsOperand pgs_times(const pgsVariable &rhs) const;
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virtual pgsOperand pgs_over(const pgsVariable &rhs) const;
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virtual pgsOperand pgs_modulo(const pgsVariable &rhs) const;
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virtual pgsOperand pgs_equal(const pgsVariable &rhs) const;
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virtual pgsOperand pgs_different(const pgsVariable &rhs) const;
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virtual pgsOperand pgs_greater(const pgsVariable &rhs) const;
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virtual pgsOperand pgs_lower(const pgsVariable &rhs) const;
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virtual pgsOperand pgs_lower_equal(const pgsVariable &rhs) const;
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virtual pgsOperand pgs_greater_equal(const pgsVariable &rhs) const;
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virtual pgsOperand pgs_not() const;
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virtual bool pgs_is_true() const;
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virtual pgsOperand pgs_almost_equal(const pgsVariable &rhs) const;
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protected:
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wxString m_data;
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public:
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explicit pgsNumber(const wxString &data, const bool &is_real = pgsInt);
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virtual ~pgsNumber();
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virtual pgsVariable *clone() const;
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pgsNumber(const pgsNumber &that);
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pgsNumber &operator =(const pgsNumber &that);
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public:
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virtual wxString value() const;
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virtual pgsOperand eval(pgsVarMap &vars) const;
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public:
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bool is_valid() const;
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static pgsTypes num_type(const wxString &num);
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public:
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virtual pgsNumber number() const;
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virtual pgsRecord record() const;
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virtual pgsString string() const;
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};
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#endif /*PGSNUMBER_H_*/
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