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support PG11
Поддержка PostgreSQL 11 только для Windows
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levinsv
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290
pgscript/objects/pgsString.cpp
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290
pgscript/objects/pgsString.cpp
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//////////////////////////////////////////////////////////////////////////
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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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#include "pgAdmin3.h"
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#include "pgscript/objects/pgsString.h"
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#include <wx/regex.h>
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#include "pgscript/objects/pgsNumber.h"
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#include "pgscript/objects/pgsRecord.h"
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#include "pgscript/exceptions/pgsArithmeticException.h"
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#include "pgscript/exceptions/pgsCastException.h"
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pgsString::pgsString(const wxString &data) :
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pgsVariable(pgsVariable::pgsTString), m_data(data)
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{
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}
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pgsString::~pgsString()
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{
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}
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pgsVariable *pgsString::clone() const
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{
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return pnew pgsString(*this);
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}
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wxString pgsString::value() const
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{
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return m_data;
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}
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pgsOperand pgsString::eval(pgsVarMap &vars) const
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{
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return this->clone();
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}
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pgsOperand pgsString::pgs_plus(const pgsVariable &rhs) const
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{
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if (rhs.is_string())
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{
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return pnew pgsString(m_data + rhs.value());
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}
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else
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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}
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pgsOperand pgsString::pgs_minus(const pgsVariable &rhs) const
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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pgsOperand pgsString::pgs_times(const pgsVariable &rhs) const
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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pgsOperand pgsString::pgs_over(const pgsVariable &rhs) const
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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pgsOperand pgsString::pgs_modulo(const pgsVariable &rhs) const
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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pgsOperand pgsString::pgs_equal(const pgsVariable &rhs) const
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{
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if (rhs.is_string())
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{
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return pnew pgsNumber(m_data == rhs.value() ? wxT("1") : wxT("0"));
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}
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else
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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}
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pgsOperand pgsString::pgs_different(const pgsVariable &rhs) const
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{
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if (rhs.is_string())
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{
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return pnew pgsNumber(m_data != rhs.value() ? wxT("1") : wxT("0"));
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}
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else
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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}
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pgsOperand pgsString::pgs_greater(const pgsVariable &rhs) const
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{
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if (rhs.is_string())
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{
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return pnew pgsNumber(m_data > rhs.value() ? wxT("1") : wxT("0"));
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}
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else
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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}
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pgsOperand pgsString::pgs_lower(const pgsVariable &rhs) const
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{
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if (rhs.is_string())
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{
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return pnew pgsNumber(m_data < rhs.value() ? wxT("1") : wxT("0"));
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}
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else
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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}
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pgsOperand pgsString::pgs_lower_equal(const pgsVariable &rhs) const
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{
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if (rhs.is_string())
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{
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return pnew pgsNumber(m_data <= rhs.value() ? wxT("1") : wxT("0"));
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}
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else
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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}
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pgsOperand pgsString::pgs_greater_equal(const pgsVariable &rhs) const
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{
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if (rhs.is_string())
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{
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return pnew pgsNumber(m_data >= rhs.value() ? wxT("1") : wxT("0"));
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}
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else
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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}
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pgsOperand pgsString::pgs_not() const
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{
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wxString data = m_data.Strip(wxString::both);
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return pnew pgsString(data.IsEmpty() ? wxT("1") : wxT(""));
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}
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bool pgsString::pgs_is_true() const
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{
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wxString data = m_data.Strip(wxString::both);
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return (!data.IsEmpty() ? true : false);
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}
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pgsOperand pgsString::pgs_almost_equal(const pgsVariable &rhs) const
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{
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if (rhs.is_string())
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{
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return pnew pgsNumber(m_data.CmpNoCase(rhs.value()) == 0
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? wxT("1") : wxT("0"));
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}
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else
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{
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throw pgsArithmeticException(m_data, rhs.value());
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}
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}
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pgsNumber pgsString::number() const
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{
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wxString data = m_data.Strip(wxString::both);
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pgsTypes type = pgsNumber::num_type(data);
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switch (type)
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{
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case pgsTInt:
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return pgsNumber(data, pgsInt);
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case pgsTReal:
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return pgsNumber(data, pgsReal);
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default:
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throw pgsCastException(data, wxT("number"));
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}
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}
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pgsRecord pgsString::record() const
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{
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pgsRecord *rec = 0;
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// Try to find the representation of a record in the string
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{
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wxString element(wxT("(\"([^\"\\\\]|\\\\.)*\")|((-|[a-zA-Z0-9\\+\\.])+)"));
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wxString data(m_data);
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wxRegEx regex1(wxString() << wxT("^[[:space:]]*\\([[:space:]]*(")
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<< element << wxT(")[[:space:]]*([,][[:space:]]*(")
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<< element << wxT(")[[:space:]]*)*\\)"), wxRE_DEFAULT | wxRE_ICASE);
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// Find each line
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size_t line_nb = 0, nb_of_columns = 0;
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bool count_columns = true;
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while (regex1.Matches(data))
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{
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// Process that line: find each element
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wxString line(regex1.GetMatch(data));
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wxRegEx regex2(element);
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size_t column_nb = 0;
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while (regex2.Matches(line))
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{
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if (count_columns == true)
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{
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++nb_of_columns;
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}
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else
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{
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if (column_nb < nb_of_columns && rec != 0)
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{
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wxString value(regex2.GetMatch(line));
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if (value.StartsWith(wxT("\""))
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&& value.EndsWith(wxT("\"")))
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{
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// This is a string
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value = value.Mid(1, value.Len() - 2);
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value.Replace(wxT("\\\""), wxT("\""));
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value.Replace(wxT("\\\\"), wxT("\\"));
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rec->insert(line_nb, column_nb,
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pnew pgsString(value));
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}
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else
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{
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// This is a number or a string
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pgsTypes type = pgsNumber::num_type(value);
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switch (type)
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{
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case pgsTInt:
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rec->insert(line_nb, column_nb,
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pnew pgsNumber(value, pgsInt));
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break;
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case pgsTReal:
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rec->insert(line_nb, column_nb,
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pnew pgsNumber(value, pgsReal));
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break;
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default:
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rec->insert(line_nb, column_nb,
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pnew pgsString(value));
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break;
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}
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}
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}
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++column_nb;
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}
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regex2.ReplaceFirst(&line, wxT(""));
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}
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// If it is the first loop we want to process this line a
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// second time because the first one was meant to count
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// the number of columns
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if (count_columns == true)
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{
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count_columns = false;
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rec = pnew pgsRecord(nb_of_columns);
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}
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else
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{
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regex1.ReplaceFirst(&data, wxT(""));
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++line_nb;
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}
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}
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}
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// Process the case
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if (rec == 0)
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{
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rec = pnew pgsRecord(1);
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rec->insert(0, 0, this->clone());
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}
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pgsRecord ret_val(*rec);
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pdelete(rec);
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return ret_val;
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}
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pgsString pgsString::string() const
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{
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return pgsString(*this);
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}
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