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string.cpp
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string.cpp
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#include "SafeProgramming.h"
#include "Object.h"
#include "String.h"
#include <windows.h>
#include <string.h>
// Macros
#ifdef _UNICODE
#define FINDINDEX(_a, _b) ((_a != NULL)?(wcschr(_a, _b)):NULL)
#else
#define FINDINDEX(_a, _b) ((_a != NULL)?(strchr(_a, _b)):NULL)
#endif
// ----
CString::CString()
{
#ifdef DYNAMIC_CSTRING
Buffer = NULL;
#else
*Buffer = 0;
#endif
}
CString::CString(char* _String)
{
#ifdef DYNAMIC_CSTRING
Buffer = new TCHAR[strlen(_String) + 10];
#endif
#ifdef _UNICODE
swprintf(Buffer, TEXT("%hs"), _String);
#else
strcpy(Buffer, _String);
#endif
}
CString::CString(CString* _String)
{
if ( (_String)
&& (_String->GetString())
)
{
#ifdef DYNAMIC_CSTRING
Buffer = new TCHAR[_String->GetStringLength() + 10];
#endif
#ifdef _UNICODE
wcscpy(Buffer, _String->GetString());
// wsprintf(Buffer, TEXT("%s"), _String->GetString());
#else
strcpy(Buffer, _String->GetString());
//sprintf(Buffer, TEXT("%s"), _String->GetString());
#endif
//memcpy((void*)Buffer, (void*)_String->GetString(), _String->GetStringSize());
}
}
// ----
CString::~CString()
{
#ifdef DYNAMIC_CSTRING
if ((((int)Buffer) % 2) == 1)
{
// Time to start swearing.
OutputDebugString(TEXT("CString::~CString. Major problem!\n"));
}
else
{
SAFELY_DELETE_ARRAY(Buffer);
}
#endif
}
// ----
// Release memory.
void CString::Clear()
{
#ifdef DYNAMIC_CSTRING
SAFELY_DELETE_ARRAY(Buffer);
#else
*Buffer = 0;
#endif
}
// ----
// Reads in the content of a file. (Not UNICODE!!!)
// Return value indicates number of bytes read. (I don't know how the file was opened [text/binary])
int CString::LoadString(FILE* _FH, int _ReadLength)
{
#ifdef DYNAMIC_CSTRING
// Delete any existing string data
SAFELY_DELETE_ARRAY(Buffer);
#else
*Buffer = 0;
#endif
long ReadLength = _ReadLength;
// Calculate length for reading.
if (ReadLength == 0)
{
long oldpos;
oldpos = ftell(_FH); // Record start pos
fseek(_FH, 0, SEEK_END); // Seek end
ReadLength = ftell(_FH) - oldpos; // Calc difference
fseek(_FH, oldpos, SEEK_SET); // Go back to original point
}
if (ReadLength > 0)
{
char* tempString = new char[ReadLength + 10]; // Terminating null.
memset((void*)tempString, 0, ReadLength + 10); // Clear all to null.
ReadLength = fread(tempString, ReadLength, 1, _FH);
*this = tempString;
delete[] tempString;
}
else
{
ReadLength = 0;
}
return ReadLength;
}
// ----
// Reads in the content of a file. (Not UNICODE!!!)
// Return value indicates number of bytes read. (I don't know how the file was opened [text/binary])
int CString::LoadEncodedString(FILE* _FH, int _ReadLength)
{
#ifdef DYNAMIC_CSTRING
// Delete any existing string data
SAFELY_DELETE_ARRAY(Buffer);
#else
*Buffer = 0;
#endif
long ReadLength = _ReadLength;
// Calculate length for reading.
if (ReadLength == 0)
{
long oldpos;
oldpos = ftell(_FH); // Record start pos
fseek(_FH, 0, SEEK_END); // Seek end
ReadLength = ftell(_FH) - oldpos; // Calc difference
fseek(_FH, oldpos, SEEK_SET); // Go back to original point
}
if (ReadLength > 0)
{
char* tempString = new char[ReadLength + 10]; // Terminating null.
memset((void*)tempString, 0, ReadLength + 10); // Clear all to null.
fread(tempString, ReadLength, 1, _FH);
// Loop through the data unencrypting it (if you can really call it encryption).
for (int i = ReadLength; i--;)
{
*(tempString + i) = (*(tempString + i)) ^ 0xFF; // Really complicated encryption.
}
*this = tempString;
delete[] tempString;
}
else
{
ReadLength = 0;
}
return ReadLength;
}
// ----
// Copies the string across exactly as is, without any
// fancy character conversion.
void CString::AssignAsData(char* _String)
{
int length;
TCHAR* Index;
// Free old string always.
SAFELY_DELETE_ARRAY(Buffer);
// Validate address.
if (!_String)
return;
length = strlen(_String);
// No length.
if (!length)
return;
// Create new buffer
Buffer = new TCHAR[length + 1];
Index = Buffer;
// Loop through copying data from one string directly to the other.
for (length; length--;)
{
*Index = (unsigned char)*_String;
Index++;
_String++;
}
*Index = 0;
}
// ----
// Overload inherited method
TCHAR* CString::ToString()
{
return Buffer;
}
// ----
TCHAR* CString::GetString()
{
return Buffer;
}
// ----
UINT CString::GetStringLength()
{
#ifdef DYNAMIC_CSTRING
if (Buffer)
{
#endif
#ifdef _UNICODE
return wcslen(Buffer);
#else
return strlen(Buffer);
#endif
#ifdef DYNAMIC_CSTRING
}
return 0;
#endif
}
// ----
// Returns the size of the string in bytes.
UINT CString::GetStringSize()
{
return ((GetStringLength() + 1) * sizeof(TCHAR));
}
#ifdef INCLUDE_UNFINISHED_CODE
// ----
// Returns true if the string contains one, or more,
// new line characters.
bool CString::DoesStringContainNewLine()
{
if (Buffer)
return (*Buffer == '\n'); //return (FINDINDEX(Buffer, '\n'));
else
return false;
}
#endif
// ----
// Simply remove the last character from the string. (Bit of a quick fix)
void CString::DeleteLastChar()
{
int Index;
#ifdef DYNAMIC_CSTRING
if (Buffer)
{
#endif
#ifdef _UNICODE
Index = wcslen(Buffer);
#else
Index = strlen(Buffer);
#endif
if (Index >= 1)
*(Buffer + Index - 1) = 0;
#ifdef DYNAMIC_CSTRING
}
#endif
}
#ifdef INCLUDE_UNFINISHED_CODE
// ----
// Takes the first word from the object string and
// moves it into the _IntoHere object.
void CString::MoveFirstWord(CString* _IntoHere, char _Delimiter)
{
// The two other methods can do this combined.
CopyFirstWord(_IntoHere, _Delimiter);
DeleteFirstWord(_Delimiter);
}
// ----
// Copies the first word of the object string into the
// referenced object.
void CString::CopyFirstWord(CString* _IntoHere, char _Delimiter)
{
if (!_IntoHere)
return;
if (!Buffer)
{
SAFELY_DELETE_ARRAY(_IntoHere->Buffer); // Free the other buffer's memory.
return;
}
// Copy entire string.
*_IntoHere = Buffer;
// Then remove everything after the first delimiter.
TCHAR* Index1 = FINDINDEX(_IntoHere->Buffer, '\n');
TCHAR* Index2 = FINDINDEX(_IntoHere->Buffer, ' ');
if ((Index1) && (Index1 < Index2))
*Index1 = 0;
if ((Index2) && (Index2 < Index1))
*Index2 = 0;
}
// ----
// Removes the first word of the buffer, including
// trailing _Delimiter.
void CString::DeleteFirstWord(char _Delimiter)
{
CString TempBuffer;
if (!Buffer)
return;
TCHAR* Index =NULL;
TCHAR* Index1 = FINDINDEX(Buffer, '\n');
TCHAR* Index2 = FINDINDEX(Buffer, ' ');
// Find which is the first delimiter
if ((Index1) && (Index1 < Index2))
Index = Index1;
if ((Index2) && (Index2 < Index1))
Index = Index1;
if (Index)
{
*Index = 0;
Index++;
if (*Index)
{
// Can't directly copy the buffer as the equals
// operator will free the memory before trying
// to access it in the assignment - thus need
// to make a copy first.
// Copy the remaining buffer.
TempBuffer = Index;
// Copy it back again
*this = TempBuffer;
}
else
{
SAFELY_DELETE_ARRAY(Buffer);
}
}
else
{
SAFELY_DELETE_ARRAY(Buffer);
}
}
#endif
#ifdef _UNICODE // Unicode only method
// ----
void CString::operator= (WCHAR* _String)
{
#ifdef DYNAMIC_CSTRING
SAFELY_DELETE_ARRAY(Buffer);
#else
*Buffer = 0;
#endif
if ( (_String)
&& (wcslen(_String) > 0)
)
{
#ifdef DYNAMIC_CSTRING
Buffer = new TCHAR[wcslen(_String) + 10];
#endif
wcscpy(Buffer, _String);
}
}
#endif
// ----
void CString::operator= (char* _String)
{
#ifdef DYNAMIC_CSTRING
SAFELY_DELETE_ARRAY(Buffer);
#endif
if ( (_String)
&& (strlen(_String) > 0)
)
{
#ifdef DYNAMIC_CSTRING
Buffer = new TCHAR[strlen(_String) + 10];
#endif
#ifdef _UNICODE
swprintf(Buffer, TEXT("%hs"), _String);
#else
strcpy(Buffer, _String);
#endif
}
}
// ----
void CString::operator= (CString* _String)
{
#ifdef DYNAMIC_CSTRING
SAFELY_DELETE_ARRAY(Buffer);
#endif
if ( (_String)
&& (_String->GetString())
)
{
#ifdef DYNAMIC_CSTRING
Buffer = new TCHAR[_String->GetStringLength() + 10];
#endif
#ifdef _UNICODE
wcscpy(Buffer, _String->GetString());
//wsprintf(Buffer, TEXT("%s"), _String->GetString());
#else
strcpy(Buffer, _String->GetString());
//sprintf(Buffer, TEXT("%s"), _String->GetString());
#endif
// Older method.
// memcpy((void*)Buffer, (void*)_String->GetString(), _String->GetStringSize());
}
}
//TCHAR* operator= (WCHAR* _String);
// ----
void CString::operator= (CString& _String)
{
#ifdef DYNAMIC_CSTRING
SAFELY_DELETE_ARRAY(Buffer);
#endif
if (_String.GetStringLength() > 0)
{
#ifdef DYNAMIC_CSTRING
Buffer = new TCHAR[_String.GetStringLength() + 10];
#endif
#ifdef _UNICODE
wcscpy(Buffer, _String.GetString());
//wsprintf(Buffer, TEXT("%s"), _String.GetString());
#else
strcpy(Buffer, _String.GetString());
//sprintf(Buffer, TEXT("%s"), _String.GetString());
#endif
//memcpy((void*)Buffer, (void*)_String.GetString(), _String.GetStringSize());
}
}
// ----
void CString::operator+= (char* _String)
{
if ( (_String)
&& (strlen(_String) > 0)
)
{
#ifdef DYNAMIC_CSTRING
TCHAR* Temp = new TCHAR[GetStringLength() + strlen(_String) + 10];
#ifdef _UNICODE
swprintf(Temp, TEXT("%s%hs"), Buffer, _String);
#else
sprintf(Temp, TEXT("%s%hs"), Buffer, _String);
#endif
SAFELY_DELETE_ARRAY(Buffer);
Buffer = Temp;
#else // Static
#ifdef _UNICODE
swprintf(Buffer, TEXT("%s%hs"), Buffer, _String);
#else
sprintf(Buffer, TEXT("%s%hs"), Buffer, _String);
#endif
#endif
}
}
// ----
void CString::operator+= (CString* _String)
{
if ( (_String)
&& (_String->GetStringLength() > 0)
)
{
#ifdef DYNAMIC_CSTRING
TCHAR* Temp = new TCHAR[GetStringLength() + _String->GetStringLength() + 10];
if (Temp)
{
*Temp = 0;
if (Buffer)
{
#ifdef _UNICODE
wcscpy(Temp, Buffer);
#else
strcpy(Temp, Buffer);
#endif
SAFELY_DELETE_ARRAY(Buffer);
}
Buffer = Temp;
#ifdef _UNICODE
wcscat(Buffer, _String->GetString());
//wsprintf(Temp, TEXT("%s%s"), Buffer, _String->GetString());
//SAFELY_DELETE_ARRAY(Buffer);
//Buffer = Temp;
#else
strcat(Buffer, _String->GetString());
//sprintf(Temp, TEXT("%s%s"), Buffer, _String->GetString());
//SAFELY_DELETE_ARRAY(Buffer);
//Buffer = Temp;
#endif
}
#else // Static
if (*Buffer)
{
#ifdef _UNICODE
wcscat(Buffer, _String->GetString());
//wsprintf(Buffer, TEXT("%s%s"), Buffer, _String->GetString());
#else
strcat(Buffer, _String->GetString());
//sprintf(Buffer, TEXT("%s%s"), Buffer, _String->GetString());
#endif
}
else
{
#ifdef _UNICODE
wcscpy(Buffer, _String->GetString());
//wsprintf(Buffer, TEXT("%s"), _String->GetString());
#else
strcpy(Buffer, _String->GetString());
//sprintf(Buffer, TEXT("%s"), _String->GetString());
#endif
}
#endif
}
}
// ----
void CString::operator+= (CString& _String)
{
if (_String.GetStringLength() > 0)
{
#ifdef DYNAMIC_CSTRING
TCHAR* Temp = new TCHAR[GetStringLength() + _String.GetStringLength() + 1];
if (Temp)
{
*Temp = 0;
if (Buffer)
{
#ifdef _UNICODE
wcscpy(Temp, Buffer);
#else
strcpy(Temp, Buffer);
#endif
SAFELY_DELETE_ARRAY(Buffer);
}
Buffer = Temp;
#ifdef _UNICODE
wcscat(Buffer, _String.GetString());
//wsprintf(Temp, TEXT("%s%s"), Buffer, _String.GetString());
//SAFELY_DELETE_ARRAY(Buffer);
//Buffer = Temp;
#else
strcat(Buffer, _String.GetString());
//sprintf(Temp, "%s%s", Buffer, _String.GetString());
//SAFELY_DELETE_ARRAY(Buffer);
//Buffer = Temp;
#endif
}
#else // Static
if (*Buffer)
{
#ifdef _UNICODE
wcscat(Buffer, _String.GetString());
//wsprintf(Buffer, TEXT("%s%s"), Buffer, _String.GetString());
#else
strcat(Buffer, _String.GetString());
//sprintf(Buffer, TEXT("%s%s"), Buffer, _String.GetString());
#endif
}
else
{
#ifdef _UNICODE
wcscpy(Buffer, _String.GetString());
//wsprintf(Buffer, TEXT("%s"), _String.GetString());
#else
strcpy(Buffer, _String.GetString());
//sprintf(Buffer, TEXT("%s"), _String.GetString());
#endif
}
#endif
}
}
// ----
bool CString::operator== (char* _StringRight)
{
#ifdef DYNAMIC_CSTRING
// Two zero length strings are the same, okay!!!
if ( (!Buffer)
&& (!_StringRight))
{
return true;
}
if (!Buffer)
return false;
if (!_StringRight)
return false;
// Both buffers should at least contain some data at this point.
// Return false if not the same lenght.
if (strlen(_StringRight) != GetStringLength())
return false;
// Now need a more complicated test on the actual data.
#ifdef _UNICODE
bool ret = false;
CString* TempCString = new CString(_StringRight);
if (TempCString)
{
ret = (*this == TempCString);
delete TempCString;
}
return ret;
#else
return (strcmp(Buffer, _StringRight) == 0);
#endif
#else // Static
if ( (!_StringRight)
&& (*Buffer == 0))
return true;
if (!_StringRight)
return false;
if (*Buffer == 0)
return false;
#ifdef _UNICODE
bool ret = false;
CString* TempCString = new CString(_StringRight);
if (TempCString)
{
ret = (*this == TempCString);
delete TempCString;
}
return ret;
#else
return (strcmp(Buffer, _StringRight) == 0);
#endif
#endif
}
// ----
bool CString::operator== (CString* _StringRight)
{
#ifdef DYNAMIC_CSTRING
if (!_StringRight)
return false;
if ( (!Buffer)
&& (!_StringRight->GetString()))
{
return true;
}
if (!Buffer)
return false;
#ifdef _UNICODE
return (!wcscmp(Buffer, _StringRight->GetString()));
#else
return (!strcmp(Buffer, _StringRight->GetString()));
#endif
#else // Static
if (!_StringRight)
return false;
if ( (*Buffer == 0)
&& (!_StringRight->GetString()))
return true;
if (*Buffer == 0)
return false;
#ifdef _UNICODE
return (!wcscmp(Buffer, _StringRight->GetString()));
#else
return (!strcmp(Buffer, _StringRight->GetString()));
#endif
#endif
}