project64/Source/Common/Ini File Class.cpp

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#include "stdafx.h"
CIniFileBase::CIniFileBase(CFileBase & FileObject, LPCTSTR FileName) :
m_lastSectionSearch(0),
m_CurrentSectionFilePos(0),
m_LineFeed("\r\n"),
m_ReadOnly(true),
m_InstantFlush(false),
m_File(FileObject),
m_FileName(FileName),
m_CurrentSectionDirty(false)
{
}
CIniFileBase::~CIniFileBase(void)
{
SaveCurrentSection();
}
void CIniFileBase::fInsertSpaces ( int Pos, int NoOfSpaces )
{
enum { fIS_MvSize = 0x2000 };
unsigned char Data[fIS_MvSize + 1];
int SizeToRead, result;
long end, WritePos;
m_File.Seek(0,CFileBase::end);
end = m_File.GetPosition();
if (NoOfSpaces > 0) {
stdstr_f SpaceBuffer(_T("%*c"),NoOfSpaces,' ');
do {
SizeToRead = end - Pos;
if (SizeToRead > fIS_MvSize) { SizeToRead = fIS_MvSize; }
if (SizeToRead > 0) {
m_File.Seek(SizeToRead * -1,CFileBase::current);
WritePos = m_File.GetPosition();
memset(Data,0,sizeof(Data));
result = m_File.Read(Data,SizeToRead);
m_File.Seek(WritePos,CFileBase::begin);
end = WritePos;
m_File.Write(SpaceBuffer.c_str(),(ULONG)SpaceBuffer.length());
m_File.Write(Data,result);
m_File.Seek(WritePos,CFileBase::begin);
}
} while (SizeToRead > 0);
} if (NoOfSpaces < 0) {
int ReadPos = Pos + (NoOfSpaces * -1);
int WritePos = Pos;
do {
SizeToRead = end - ReadPos;
if (SizeToRead > fIS_MvSize) { SizeToRead = fIS_MvSize; }
m_File.Seek(ReadPos,CFileBase::begin);
m_File.Read(Data,SizeToRead);
m_File.Seek(WritePos,CFileBase::begin);
m_File.Write(Data,SizeToRead);
ReadPos += SizeToRead;
WritePos += SizeToRead;
} while (SizeToRead > 0);
m_File.Seek(WritePos,CFileBase::begin);
stdstr_f SpaceBuffer(_T("%*c"),(NoOfSpaces * -1),' ');
m_File.Write(SpaceBuffer.c_str(),(ULONG)SpaceBuffer.length());
m_File.Seek(WritePos,CFileBase::begin);
m_File.SetEndOfFile();
m_File.Seek(0,CFileBase::begin);
}
}
int CIniFileBase::GetStringFromFile ( char * & String, char * &Data, int & MaxDataSize, int & DataSize, int & ReadPos )
{
enum { BufferIncrease = 0x2000 };
if (MaxDataSize == 0)
{
ReadPos = 0;
MaxDataSize = BufferIncrease;
Data = new char[MaxDataSize];
DataSize = m_File.Read(&Data[DataSize],MaxDataSize);
}
for (;;) {
int count;
for (count = ReadPos; count < DataSize; count ++) {
if (Data[count] == '\n')
{
int len = (count - ReadPos) + 1;
String = &Data[ReadPos];
String[len-1] = 0;
ReadPos = count + 1;
return len;
}
}
if (ReadPos != 0)
{
if ((DataSize - ReadPos) > 0 )
{
memmove(Data,&Data[ReadPos],DataSize - ReadPos);
}
DataSize -= ReadPos;
ReadPos = 0;
} else {
//Increase buffer size
int NewMaxDataSize = MaxDataSize + BufferIncrease;
char * NewBuffer = new char[NewMaxDataSize];
if (NewBuffer == NULL)
{
return -1;
}
memcpy(NewBuffer,Data,DataSize);
MaxDataSize = NewMaxDataSize;
delete [] Data;
Data = NewBuffer;
}
int dwRead = m_File.Read(&Data[DataSize],MaxDataSize - DataSize);
if (dwRead == 0)
{
if (DataSize > 0)
{
int len = DataSize + 1;
String = &Data[ReadPos];
String[len-1] = 0;
DataSize = 0;
ReadPos = 0;
return len;
}
return -1;
}
DataSize += dwRead;
}
return 0;
}
void CIniFileBase::SaveCurrentSection ( void )
{
if (!m_CurrentSectionDirty)
{
return;
}
m_CurrentSectionDirty = false;
if (m_CurrentSection.length() == 0)
{
m_CurrentSection = "default";
}
int lineFeedLen = (int)strlen(m_LineFeed);
if (m_CurrentSectionFilePos == -1)
{
//Section has not been added yet
m_File.Seek(0,CFileBase::end);
int len = (int)m_CurrentSection.length() + (lineFeedLen * 2) + 5;
AUTO_PTR<char> SectionName(new char[len]);
if (m_File.GetLength() < (int)strlen(m_LineFeed))
{
sprintf(SectionName.get(),"[%s]%s",m_CurrentSection.c_str(),m_LineFeed);
} else {
sprintf(SectionName.get(),"%s[%s]%s",m_LineFeed,m_CurrentSection.c_str(),m_LineFeed);
}
m_File.Write(SectionName.get(),(int)strlen(SectionName.get()));
m_CurrentSectionFilePos = m_File.GetPosition();
m_SectionsPos.insert(FILELOC::value_type(m_CurrentSection,m_CurrentSectionFilePos));
} else {
//increase/decrease space needed
int NeededBufferLen = 0;
{
AUTO_PTR<char> LineData(NULL);
int len = 0;
for (KeyValueList::iterator iter = m_CurrentSectionData.begin(); iter != m_CurrentSectionData.end(); iter++)
{
int newLen = (int)iter->first.length() + (int)iter->second.length() + lineFeedLen + 5;
if (newLen > len)
{
LineData.reset(new char[newLen]);
len = newLen;
}
sprintf(LineData.get(),"%s=%s%s",iter->first.c_str(),iter->second.c_str(),m_LineFeed);
NeededBufferLen += (int)strlen(LineData.get());
}
}
int currentLen = 0;
m_File.Seek(m_CurrentSectionFilePos, CFileBase::begin);
int MaxDataSize = 0, DataSize = 0, ReadPos = 0, result;
char *Input = NULL, *Data = NULL;
//Skip first line as it is the section name
int StartPos = m_CurrentSectionFilePos;
int EndPos = StartPos;
do {
result = GetStringFromFile(Input,Data,MaxDataSize,DataSize,ReadPos);
if (result <= 1) { continue; }
if (strlen(CleanLine(Input)) <= 1 ||
Input[0] != '[')
{
EndPos = ((m_File.GetPosition() - DataSize) + ReadPos);
continue;
}
if (Input[0] == '[')
{
NeededBufferLen += lineFeedLen;
}
break;
} while (result >= 0);
currentLen = EndPos - StartPos;
if (Data) { delete [] Data; Data = NULL; }
if (NeededBufferLen != currentLen)
{
fInsertSpaces(StartPos,NeededBufferLen - currentLen);
m_File.Flush();
ClearSectionPosList(StartPos);
}
//set pointer to beginning of the start pos
m_File.Seek(StartPos, CFileBase::begin);
}
{
AUTO_PTR<char> LineData(NULL);
int len = 0;
for (KeyValueList::iterator iter = m_CurrentSectionData.begin(); iter != m_CurrentSectionData.end(); iter++)
{
int newLen = (int)iter->first.length() + (int)iter->second.length() + lineFeedLen + 5;
if (newLen > len)
{
LineData.reset(new char[newLen]);
len = newLen;
}
sprintf(LineData.get(),"%s=%s%s",iter->first.c_str(),iter->second.c_str(),m_LineFeed);
m_File.Write(LineData.get(),(int)strlen(LineData.get()));
}
}
m_File.Flush();
}
bool CIniFileBase::MoveToSectionNameData ( LPCSTR lpSectionName, bool ChangeCurrentSection )
{
if (strcmp(lpSectionName,m_CurrentSection.c_str()) == 0)
{
return true;
}
if (ChangeCurrentSection)
{
SaveCurrentSection();
m_CurrentSection = "";
}
char *Input = NULL, *Data = NULL;
int MaxDataSize = 0, DataSize = 0, ReadPos = 0, result;
FILELOC_ITR iter = m_SectionsPos.find(std::string(lpSectionName));
bool bFoundSection = false;
if (iter != m_SectionsPos.end())
{
if (ChangeCurrentSection)
{
m_CurrentSection = iter->first;
m_CurrentSectionFilePos = iter->second;
}
m_File.Seek(iter->second,CFileBase::begin);
bFoundSection = true;
} else {
m_File.Seek(m_lastSectionSearch, CFileBase::begin);
//long Fpos;
BYTE pUTF8[3];
pUTF8[0] = 0xef;
pUTF8[1] = 0xbb;
pUTF8[2] = 0xbf;
do {
result = GetStringFromFile(Input,Data,MaxDataSize,DataSize,ReadPos);
if (result <= 1) { continue; }
if (strlen(CleanLine(Input)) <= 1) { continue; }
//We Only care about sections
char * CurrentSection = Input;
if(m_lastSectionSearch == 0 && !memcmp(CurrentSection, pUTF8, 3))
{
CurrentSection += 3;
}
if (CurrentSection[0] != '[') { continue; }
int lineEndPos = (int)strlen(CurrentSection) - 1;
if (CurrentSection[lineEndPos] != ']') { continue; }
//take off the ']' from the end of the string
CurrentSection[lineEndPos] = 0;
CurrentSection += 1;
m_lastSectionSearch = (m_File.GetPosition() - DataSize) + ReadPos;
m_SectionsPos.insert(FILELOC::value_type(CurrentSection,m_lastSectionSearch));
if (_stricmp(lpSectionName,CurrentSection) != 0) {
continue;
}
if (ChangeCurrentSection)
{
m_CurrentSection = lpSectionName;
m_CurrentSectionFilePos = m_lastSectionSearch;
} else {
m_File.Seek(m_lastSectionSearch,CFileBase::begin);
}
bFoundSection = true;
break;
} while (result >= 0);
}
if (bFoundSection && ChangeCurrentSection)
{
m_CurrentSectionData.clear();
do {
result = GetStringFromFile(Input,Data,MaxDataSize,DataSize,ReadPos);
if (result <= 1) { continue; }
if (strlen(CleanLine(Input)) <= 1) { continue; }
if (Input[0] == '[') { break; }
char * Pos = strchr(Input,'=');
if (Pos == NULL) { continue; }
char * Value = &Pos[1];
char * Pos1 = Pos-1;
while(((*Pos1 == ' ') || (*Pos1 == '\t')) && (Pos1 > Input))
{
Pos1--;
}
Pos1[1] = 0;
m_CurrentSectionData.insert(KeyValueList::value_type(Input,Value));
} while (result >= 0);
}
if (Data) { delete [] Data; Data = NULL; }
return bFoundSection;
}
const char * CIniFileBase::CleanLine ( char * const Line )
{
char * Pos = Line;
//Remove any comment from the line
while (Pos != NULL)
{
Pos = strchr(Pos,'/');
if (Pos != NULL)
{
if (Pos[1] == '/')
{
if(Pos > Line)
{
char * Pos_1 = Pos-1;
if(Pos_1[0] != ':')
{
Pos[0] = 0;
}
else
Pos += 1;
}
else
{
Pos[0] = 0;
}
}
else
{
Pos += 1;
}
}
}
//strip any spaces or line feeds from the end of the line
for (int count = (int)strlen(&Line[0]) - 1; count >= 0; count --) {
if (Line[count] != ' ' && Line[count] != '\r') { break; }
Line[count] = 0;
}
return Line;
}
void CIniFileBase::OpenIniFileReadOnly()
{
if (m_File.Open(m_FileName.c_str(),CFileBase::modeRead))
{
m_ReadOnly = true;
m_File.Seek(0,CFileBase::begin);
}
}
void CIniFileBase::OpenIniFile(bool bCreate)
{
//Open for reading/Writing
m_ReadOnly = false;
if (!m_File.Open(m_FileName.c_str(),CFileBase::modeReadWrite | CFileBase::shareDenyWrite))
{
if (!m_File.Open(m_FileName.c_str(),CFileBase::modeRead))
{
if(bCreate)
{
if (!m_File.Open(m_FileName.c_str(),CFileBase::modeReadWrite | CFileBase::modeCreate | CFileBase::shareDenyWrite))
{
return;
}
}
}
else
{
m_ReadOnly = true;
}
}
m_File.Seek(0,CFileBase::begin);
}
bool CIniFileBase::IsEmpty()
{
if(m_File.GetLength()==0)
return true;
return false;
}
bool CIniFileBase::IsFileOpen ( void )
{
return m_File.IsOpen();
}
bool CIniFileBase::DeleteSection ( LPCTSTR lpSectionName )
{
stdstr_f strSection("[%s]",lpSectionName);
/*if(m_File.IsOpen())
{
m_CurrentSectionFilePos = 0;
m_File.Seek(m_CurrentSectionFilePos,CFileBase::begin);
ULONG dwSize = m_File.GetLength();
if(dwSize)
{
char *pData = new char[dwSize+1];
if(pData)
{
ULONG dwRet = m_File.Read(pData, dwSize);
if(dwRet != 0)
{
if(dwRet <= dwSize)
{
pData[dwRet] = 0;
char *pSection = strstr(pData, strSection.c_str());
if(pSection)
{
char tmp = pSection[0];
pSection[0] = 0;
std::string strNewData = pData;
pSection[0] = tmp;
char *pEndSection = pSection + strlen(strSection.c_str());
char *pNextSection = strstr(pEndSection, "[");
if(pNextSection)
{
strNewData += pNextSection;
}
m_File.Seek(m_CurrentSectionFilePos,CFileBase::begin);
m_File.Write(strNewData.c_str(), (ULONG)strlen(strNewData.c_str()));
m_File.Flush();
m_File.SetEndOfFile();
}
}
else
{
delete [] pData;
return false;
}
}
delete [] pData;
}
else
return false;
}
}
else
return false;*/
return true;
}
bool CIniFileBase::GetString ( LPCSTR lpSectionName, LPCSTR lpKeyName, LPCSTR lpDefault, stdstr & Value )
{
CGuard Guard(m_CS);
if (lpSectionName == NULL || strlen(lpSectionName) == 0)
{
lpSectionName = "default";
}
if (m_File.IsOpen() && MoveToSectionNameData(lpSectionName,true))
{
KeyValueList::iterator iter = m_CurrentSectionData.find(lpKeyName);
if (iter != m_CurrentSectionData.end())
{
Value = iter->second.c_str();
return true;
}
}
Value = lpDefault;
return false;
}
stdstr CIniFileBase::GetString ( LPCSTR lpSectionName, LPCSTR lpKeyName, LPCSTR lpDefault )
{
stdstr Value;
GetString(lpSectionName,lpKeyName,lpDefault,Value);
return Value;
}
#ifdef _UNICODE
bool CIniFileBase::GetString ( LPCWSTR lpSectionName, LPCWSTR lpKeyName, LPCWSTR lpDefault, stdstr & Value )
{
CGuard Guard(m_CS);
std::string strSection;
if (lpSectionName == NULL || wcslen(lpSectionName) == 0)
{
strSection = "default";
} else {
stdstr::fromTString(lpSectionName,strSection);
}
if (m_File.IsOpen() && MoveToSectionNameData(strSection.c_str(),true))
{
KeyValueList::iterator iter = m_CurrentSectionData.find(lpKeyName);
if (iter != m_CurrentSectionData.end())
{
stdstr::toTString(iter->second.c_str(),Value);
return true;
}
}
Value = lpDefault;
return false;
}
stdstr CIniFileBase::GetString ( LPCWSTR lpSectionName, LPCWSTR lpKeyName, LPCWSTR lpDefault )
{
stdstr Value;
GetString(lpSectionName,lpKeyName,lpDefault,Value);
return Value;
}
#endif
ULONG CIniFileBase::GetString ( LPCTSTR lpSectionName, LPCTSTR lpKeyName, LPCTSTR lpDefault, LPTSTR lpReturnedString, ULONG nSize )
{
CGuard Guard(m_CS);
std::string strSection;
if (lpSectionName == NULL || _tcslen(lpSectionName) == 0)
{
strSection = "default";
} else {
strSection = lpSectionName;
}
if (m_File.IsOpen() && MoveToSectionNameData(strSection.c_str(),true))
{
KeyValueList::iterator iter = m_CurrentSectionData.find(lpKeyName);
if (iter != m_CurrentSectionData.end())
{
_tcsncpy(lpReturnedString,iter->second.c_str(),nSize - 1);
lpReturnedString[nSize - 1] = 0;
return (ULONG)_tcslen(lpReturnedString);
}
}
_tcsncpy(lpReturnedString,lpDefault,nSize - 1);
lpReturnedString[nSize - 1] = 0;
return (ULONG)_tcslen(lpReturnedString);
}
#ifdef _UNICODE
ULONG CIniFileBase::GetNumber ( LPCWSTR lpSectionName, LPCWSTR lpKeyName, ULONG nDefault )
{
ULONG Value;
GetNumber(lpSectionName,lpKeyName,nDefault,Value);
return Value;
}
bool CIniFileBase::GetNumber ( LPCWSTR lpSectionName, LPCWSTR lpKeyName, ULONG nDefault, ULONG & Value )
{
std::string strSection;
if (lpSectionName != NULL && wcslen(lpSectionName) > 0)
{
stdstr::fromTString(lpSectionName,strSection);
return GetNumber(strSection.c_str(),lpKeyName.c_str(),nDefault,Value);
} else {
return GetNumber(NULL,lpKeyName.c_str(),nDefault,Value);
}
}
#endif
ULONG CIniFileBase::GetNumber ( LPCSTR lpSectionName, LPCSTR lpKeyName, ULONG nDefault )
{
ULONG Value;
GetNumber(lpSectionName,lpKeyName,nDefault,Value);
return Value;
}
bool CIniFileBase::GetNumber ( LPCSTR lpSectionName, LPCSTR lpKeyName, ULONG nDefault, ULONG & Value )
{
CGuard Guard(m_CS);
if (lpSectionName == NULL || strlen(lpSectionName) == 0)
{
lpSectionName = "default";
}
if (m_File.IsOpen() && MoveToSectionNameData(lpSectionName,true))
{
KeyValueList::iterator iter = m_CurrentSectionData.find(lpKeyName);
if (iter != m_CurrentSectionData.end())
{
Value = 0;
sscanf(iter->second.c_str(), "%u", &Value);
return true;
}
}
Value = nDefault;
return false;
}
void CIniFileBase::SaveString ( LPCTSTR lpSectionName, LPCTSTR lpKeyName, LPCTSTR lpString )
{
CGuard Guard(m_CS);
if (!m_File.IsOpen())
{
if (lpString)
{
OpenIniFile();
}
if (!m_File.IsOpen())
{
return;
}
}
std::string strSection;
if (lpSectionName == NULL || _tcslen(lpSectionName) == 0)
{
strSection = "default";
} else {
strSection = lpSectionName;
}
if (!MoveToSectionNameData(strSection.c_str(),true))
{
m_CurrentSection = strSection;
m_CurrentSectionData.clear();
m_CurrentSectionFilePos = -1;
}
KeyValueList::iterator iter = m_CurrentSectionData.find(lpKeyName);
if (iter != m_CurrentSectionData.end())
{
if (lpString)
{
if (iter->second != lpString)
{
iter->second = lpString;
m_CurrentSectionDirty = true;
}
} else {
m_CurrentSectionData.erase(iter);
m_CurrentSectionDirty = true;
}
} else {
if (lpString)
{
m_CurrentSectionData.insert(KeyValueList::value_type(lpKeyName,lpString));
m_CurrentSectionDirty = true;
}
}
if (m_InstantFlush)
{
SaveCurrentSection();
}
}
void CIniFileBase::SaveNumber ( LPCTSTR lpSectionName, LPCTSTR lpKeyName, ULONG Value )
{
//translate the string to an ascii version and save as text
SaveString(lpSectionName,lpKeyName,stdstr_f(_T("%d"),Value).c_str());
}
void CIniFileBase::FlushChanges (void)
{
SaveCurrentSection();
}
void CIniFileBase::SetAutoFlush (bool AutoFlush)
{
m_InstantFlush = AutoFlush;
if (AutoFlush)
{
FlushChanges();
}
}
void CIniFileBase::GetKeyList ( LPCTSTR lpSectionName, strlist &List )
{
List.clear();
CGuard Guard(m_CS);
if (!m_File.IsOpen())
{
return;
}
if (lpSectionName == NULL || _tcslen(lpSectionName) == 0)
{
lpSectionName = "default";
}
if (MoveToSectionNameData(lpSectionName,true))
{
for (KeyValueList::iterator iter = m_CurrentSectionData.begin(); iter != m_CurrentSectionData.end(); iter++)
{
List.push_back(iter->first);
}
}
}
void CIniFileBase::GetKeyValueData ( LPCTSTR lpSectionName, KeyValueData & List )
{
CGuard Guard(m_CS);
if (!m_File.IsOpen())
{
return;
}
std::string strSection;
if (lpSectionName == NULL || _tcslen(lpSectionName) == 0)
{
strSection = "default";
} else {
strSection = lpSectionName;
}
if (!MoveToSectionNameData(strSection.c_str(),false)) { return; }
int MaxDataSize = 0, DataSize = 0, ReadPos = 0, result;
char *Input = NULL, *Data = NULL;
do {
result = GetStringFromFile(Input,Data,MaxDataSize,DataSize,ReadPos);
if (result <= 1) { continue; }
if (strlen(CleanLine(Input)) <= 1) { continue; }
if (Input[0] == '[') { break; }
char * Pos = strchr(Input,'=');
if (Pos == NULL) { continue; }
Pos[0] = 0;
List.insert(KeyValueData::value_type(Input,&Pos[1]));
} while (result >= 0);
if (Data) { delete [] Data; Data = NULL; }
}
void CIniFileBase::ClearSectionPosList( long FilePos )
{
if (FilePos <= 0)
{
m_SectionsPos.clear();
m_lastSectionSearch = 0;
} else {
FILELOC::iterator iter = m_SectionsPos.begin();
while (iter != m_SectionsPos.end())
{
FILELOC::iterator CurrentIter = iter;
iter ++;
long TestFilePos = CurrentIter->second;
if (TestFilePos > FilePos)
{
m_SectionsPos.erase(CurrentIter);
}
}
m_lastSectionSearch = FilePos;
}
}
void CIniFileBase::GetVectorOfSections( SectionList & sections)
{
sections.clear();
CGuard Guard(m_CS);
if (!m_File.IsOpen())
{
return;
}
{
stdstr_f DoesNotExist(_T("DoesNotExist%d%d%d"),rand(),rand(),rand());
MoveToSectionNameData(DoesNotExist.c_str(),false);
}
for (FILELOC::const_iterator iter = m_SectionsPos.begin(); iter != m_SectionsPos.end(); iter++)
{
sections.push_back(iter->first);
}
}