141 lines
3.2 KiB
C++
141 lines
3.2 KiB
C++
// StringValue.cpp: implementation of the CStringValue class.
|
|
/*
|
|
* Copyright (c) 1996-2000 Erwin Coumans <coockie@acm.org>
|
|
*
|
|
* Permission to use, copy, modify, distribute and sell this software
|
|
* and its documentation for any purpose is hereby granted without fee,
|
|
* provided that the above copyright notice appear in all copies and
|
|
* that both that copyright notice and this permission notice appear
|
|
* in supporting documentation. Erwin Coumans makes no
|
|
* representations about the suitability of this software for any
|
|
* purpose. It is provided "as is" without express or implied warranty.
|
|
*
|
|
*/
|
|
|
|
#include "StringValue.h"
|
|
#include "BoolValue.h"
|
|
#include "ErrorValue.h"
|
|
#include "VoidValue.h"
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Construction/Destruction
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
CStringValue::CStringValue()
|
|
/*
|
|
pre: false
|
|
effect: constructs a new CStringValue
|
|
*/
|
|
{
|
|
m_strString = "[Illegal String constructor call]";
|
|
}
|
|
|
|
CStringValue::CStringValue(STR_String txt,STR_String name,AllocationTYPE alloctype)
|
|
/*
|
|
pre:
|
|
effect: constructs a new CStringValue containing text txt
|
|
*/
|
|
{
|
|
m_strString = txt;
|
|
SetName(name);
|
|
|
|
if (alloctype==CValue::STACKVALUE)
|
|
{
|
|
CValue::DisableRefCount();
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
CValue* CStringValue::Calc(VALUE_OPERATOR op, CValue *val)
|
|
/*
|
|
pre:
|
|
ret: a new object containing the result of applying operator op to this
|
|
object and val
|
|
*/
|
|
{
|
|
//return val->CalrcString(op, this);
|
|
return val->CalcFinal(VALUE_STRING_TYPE, op, this);
|
|
}
|
|
|
|
CValue* CStringValue::CalcFinal(VALUE_DATA_TYPE dtype, VALUE_OPERATOR op, CValue *val)
|
|
/*
|
|
pre: the type of val is dtype
|
|
ret: a new object containing the result of applying operator op to val and
|
|
this object
|
|
*/
|
|
{
|
|
CValue *ret;
|
|
|
|
if (op == VALUE_ADD_OPERATOR) {
|
|
if (dtype == VALUE_ERROR_TYPE)
|
|
ret = new CErrorValue(val->GetText() + op2str(op) + GetText());
|
|
else
|
|
ret = new CStringValue(val->GetText() + GetText(),"");
|
|
} else {
|
|
|
|
if (dtype == VALUE_STRING_TYPE || dtype == VALUE_EMPTY_TYPE) {
|
|
switch(op) {
|
|
case VALUE_EQL_OPERATOR:
|
|
ret = new CBoolValue(val->GetText() == GetText());
|
|
break;
|
|
case VALUE_NEQ_OPERATOR:
|
|
ret = new CBoolValue(val->GetText() != GetText());
|
|
break;
|
|
case VALUE_GRE_OPERATOR:
|
|
ret = new CBoolValue(val->GetText() > GetText());
|
|
break;
|
|
case VALUE_LES_OPERATOR:
|
|
ret = new CBoolValue(val->GetText() < GetText());
|
|
break;
|
|
case VALUE_GEQ_OPERATOR:
|
|
ret = new CBoolValue(val->GetText() >= GetText());
|
|
break;
|
|
case VALUE_LEQ_OPERATOR:
|
|
ret = new CBoolValue(val->GetText() <= GetText());
|
|
break;
|
|
default:
|
|
ret = new CErrorValue(val->GetText() + op2str(op) + "[operator not allowed on strings]");
|
|
break;
|
|
}
|
|
} else {
|
|
ret = new CErrorValue(val->GetText() + op2str(op) + "[operator not allowed on strings]");
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
double CStringValue::GetNumber()
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
|
|
|
|
const STR_String & CStringValue::GetText()
|
|
{
|
|
return m_strString;
|
|
}
|
|
|
|
bool CStringValue::IsEqual(const STR_String & other)
|
|
{
|
|
return (m_strString == other);
|
|
}
|
|
|
|
CValue* CStringValue::GetReplica()
|
|
{
|
|
CStringValue* replica = new CStringValue(*this);
|
|
CValue::AddDataToReplica(replica);
|
|
return replica;
|
|
};
|
|
|
|
|