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cuberite-2a/lib/inifile/iniFile.cpp
narroo 794be05f22 Fixed comment typo
2014-02-17 08:51:36 -05:00

863 lines
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// IniFile.cpp: Implementation of the CIniFile class.
// Written by: Adam Clauss
// Email: cabadam@houston.rr.com
// You may use this class/code as you wish in your programs. Feel free to distribute it, and
// email suggested changes to me.
//
// Rewritten by: Shane Hill
// Date: 21/08/2001
// Email: Shane.Hill@dsto.defence.gov.au
// Reason: Remove dependancy on MFC. Code should compile on any
// platform.
//////////////////////////////////////////////////////////////////////
/*
!! MODIFIED BY FAKETRUTH and xoft !!
*/
#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
// C++ Includes
#include <fstream>
// C Includes
#include <ctype.h>
// Local Includes
#include "iniFile.h"
#if defined(WIN32)
#define iniEOL endl
#else
#define iniEOL '\r' << endl
#endif
#ifndef _WIN32
#define sscanf_s(buffer, stringbuffer, ...) (sscanf(buffer, stringbuffer, __VA_ARGS__))
#endif
using namespace std;
cIniFile::cIniFile(void) :
m_IsCaseInsensitive(true)
{
}
bool cIniFile::ReadFile(const AString & a_FileName, bool a_AllowExampleRedirect)
{
// Normally you would use ifstream, but the SGI CC compiler has
// a few bugs with ifstream. So ... fstream used.
fstream f;
AString line;
AString keyname, valuename, value;
AString::size_type pLeft, pRight;
bool IsFromExampleRedirect = false;
f.open((FILE_IO_PREFIX + a_FileName).c_str(), ios::in);
if (f.fail())
{
f.clear();
if (a_AllowExampleRedirect)
{
// Retry with the .example.ini file instead of .ini:
AString ExPath(a_FileName.substr(0, a_FileName.length() - 4));
ExPath.append(".example.ini");
f.open((FILE_IO_PREFIX + ExPath).c_str(), ios::in);
if (f.fail())
{
return false;
}
IsFromExampleRedirect = true;
}
else
{
return false;
}
}
bool IsFirstLine = true;
while (getline(f, line))
{
// To be compatible with Win32, check for existence of '\r'.
// Win32 files have the '\r' and Unix files don't at the end of a line.
// Note that the '\r' will be written to INI files from
// Unix so that the created INI file can be read under Win32
// without change.
// Removes UTF-8 Byte Order Markers (BOM) if, present.
if (IsFirstLine)
{
RemoveBom(line);
IsFirstLine = false;
}
size_t lineLength = line.length();
if (lineLength == 0)
{
continue;
}
if (line[lineLength - 1] == '\r')
{
line = line.substr(0, lineLength - 1);
}
if (line.length() == 0)
{
continue;
}
// Check that the user hasn't opened a binary file by checking the first
// character of each line!
if (!isprint(line[0]))
{
printf("%s: Binary-check failed on char %d\n", __FUNCTION__, line[0]);
f.close();
return false;
}
if ((pLeft = line.find_first_of(";#[=")) == AString::npos)
{
continue;
}
switch (line[pLeft])
{
case '[':
{
if (
((pRight = line.find_last_of("]")) != AString::npos) &&
(pRight > pLeft)
)
{
keyname = line.substr(pLeft + 1, pRight - pLeft - 1);
AddKeyName(keyname);
}
break;
}
case '=':
{
valuename = line.substr(0, pLeft);
value = line.substr(pLeft + 1);
AddValue(keyname, valuename, value);
break;
}
case ';':
case '#':
{
if (names.size() == 0)
{
AddHeaderComment(line.substr(pLeft + 1));
}
else
{
AddKeyComment(keyname, line.substr(pLeft + 1));
}
break;
}
} // switch (line[pLeft])
} // while (getline())
f.close();
if (names.size() == 0)
{
return false;
}
if (IsFromExampleRedirect)
{
WriteFile(FILE_IO_PREFIX + a_FileName);
}
return true;
}
bool cIniFile::WriteFile(const AString & a_FileName) const
{
// Normally you would use ofstream, but the SGI CC compiler has
// a few bugs with ofstream. So ... fstream used.
fstream f;
f.open((FILE_IO_PREFIX + a_FileName).c_str(), ios::out);
if (f.fail())
{
return false;
}
// Write header comments.
size_t NumComments = comments.size();
for (size_t commentID = 0; commentID < NumComments; ++commentID)
{
f << ';' << comments[commentID] << iniEOL;
}
if (NumComments > 0)
{
f << iniEOL;
}
// Write keys and values.
for (size_t keyID = 0; keyID < keys.size(); ++keyID)
{
f << '[' << names[keyID] << ']' << iniEOL;
// Comments.
for (size_t commentID = 0; commentID < keys[keyID].comments.size(); ++commentID)
{
f << ';' << keys[keyID].comments[commentID] << iniEOL;
}
// Values.
for (size_t valueID = 0; valueID < keys[keyID].names.size(); ++valueID)
{
f << keys[keyID].names[valueID] << '=' << keys[keyID].values[valueID] << iniEOL;
}
f << iniEOL;
}
f.close();
return true;
}
int cIniFile::FindKey(const AString & a_KeyName) const
{
AString CaseKeyName = CheckCase(a_KeyName);
for (size_t keyID = 0; keyID < names.size(); ++keyID)
{
if (CheckCase(names[keyID]) == CaseKeyName)
{
return keyID;
}
}
return noID;
}
int cIniFile::FindValue(const int keyID, const AString & a_ValueName) const
{
if (!keys.size() || (keyID >= (int)keys.size()))
{
return noID;
}
AString CaseValueName = CheckCase(a_ValueName);
for (size_t valueID = 0; valueID < keys[keyID].names.size(); ++valueID)
{
if (CheckCase(keys[keyID].names[valueID]) == CaseValueName)
{
return int(valueID);
}
}
return noID;
}
int cIniFile::AddKeyName(const AString & keyname)
{
names.resize(names.size() + 1, keyname);
keys.resize(keys.size() + 1);
return names.size() - 1;
}
AString cIniFile::GetKeyName(const int keyID) const
{
if (keyID < (int)names.size())
{
return names[keyID];
}
else
{
return "";
}
}
int cIniFile::GetNumValues(const int keyID) const
{
if (keyID < (int)keys.size())
{
return (int)keys[keyID].names.size();
}
return 0;
}
int cIniFile::GetNumValues(const AString & keyname) const
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return 0;
}
return (int)keys[keyID].names.size();
}
AString cIniFile::GetValueName(const int keyID, const int valueID) const
{
if ((keyID < (int)keys.size()) && (valueID < (int)keys[keyID].names.size()))
{
return keys[keyID].names[valueID];
}
return "";
}
AString cIniFile::GetValueName(const AString & keyname, const int valueID) const
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return "";
}
return GetValueName(keyID, valueID);
}
void cIniFile::AddValue(const AString & a_KeyName, const AString & a_ValueName, const AString & a_Value)
{
int keyID = FindKey(a_KeyName);
if (keyID == noID)
{
keyID = int(AddKeyName(a_KeyName));
}
keys[keyID].names.push_back(a_ValueName);
keys[keyID].values.push_back(a_Value);
}
void cIniFile::AddValueI(const AString & a_KeyName, const AString & a_ValueName, const int a_Value)
{
AddValue(a_KeyName, a_ValueName, Printf("%d", a_Value));
}
void cIniFile::AddValueF(const AString & a_KeyName, const AString & a_ValueName, const double a_Value)
{
AddValue(a_KeyName, a_ValueName, Printf("%f", a_Value));
}
bool cIniFile::SetValue(const int keyID, const int valueID, const AString & value)
{
if (((size_t)keyID >= keys.size()) || ((size_t)valueID >= keys[keyID].names.size()))
{
return false;
}
keys[keyID].values[valueID] = value;
return true;
}
bool cIniFile::SetValue(const AString & a_KeyName, const AString & a_ValueName, const AString & a_Value, const bool a_CreateIfNotExists)
{
int keyID = FindKey(a_KeyName);
if (keyID == noID)
{
if (!a_CreateIfNotExists)
{
return false;
}
keyID = AddKeyName(a_KeyName);
}
int valueID = FindValue(keyID, a_ValueName);
if (valueID == noID)
{
if (!a_CreateIfNotExists)
{
return false;
}
keys[keyID].names.push_back(a_ValueName);
keys[keyID].values.push_back(a_Value);
}
else
{
keys[keyID].values[valueID] = a_Value;
}
return true;
}
bool cIniFile::SetValueI(const AString & a_KeyName, const AString & a_ValueName, const int a_Value, const bool a_CreateIfNotExists)
{
return SetValue(a_KeyName, a_ValueName, Printf("%d", a_Value), a_CreateIfNotExists);
}
bool cIniFile::SetValueF(const AString & a_KeyName, const AString & a_ValueName, double const a_Value, const bool a_CreateIfNotExists)
{
return SetValue(a_KeyName, a_ValueName, Printf("%f", a_Value), a_CreateIfNotExists);
}
bool cIniFile::SetValueV(const AString & a_KeyName, const AString & a_ValueName, const char * a_Format, ...)
{
va_list args;
va_start(args, a_Format);
AString Data;
AppendVPrintf(Data, a_Format, args);
va_end(args);
return SetValue(a_KeyName, a_ValueName, Data);
}
AString cIniFile::GetValue(const int keyID, const int valueID, const AString & defValue) const
{
if ((keyID < (int)keys.size()) && (valueID < (int)keys[keyID].names.size()))
{
return keys[keyID].values[valueID];
}
return defValue;
}
AString cIniFile::GetValue(const AString & keyname, const AString & valuename, const AString & defValue) const
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return defValue;
}
int valueID = FindValue(int(keyID), valuename);
if (valueID == noID)
{
return defValue;
}
return keys[keyID].values[valueID];
}
int cIniFile::GetValueI(const AString & keyname, const AString & valuename, const int defValue) const
{
AString Data;
Printf(Data, "%d", defValue);
return atoi(GetValue(keyname, valuename, Data).c_str());
}
double cIniFile::GetValueF(const AString & keyname, const AString & valuename, double const defValue) const
{
AString Data;
Printf(Data, "%f", defValue);
return atof(GetValue(keyname, valuename, Data).c_str());
}
AString cIniFile::GetValueSet(const AString & keyname, const AString & valuename, const AString & defValue)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
SetValue(keyname, valuename, defValue);
return defValue;
}
int valueID = FindValue(int(keyID), valuename);
if (valueID == noID)
{
SetValue(keyname, valuename, defValue);
return defValue;
}
return keys[keyID].values[valueID];
}
double cIniFile::GetValueSetF(const AString & keyname, const AString & valuename, const double defValue)
{
AString Data;
Printf(Data, "%f", defValue);
return atof(GetValueSet(keyname, valuename, Data).c_str());
}
int cIniFile::GetValueSetI(const AString & keyname, const AString & valuename, const int defValue)
{
AString Data;
Printf(Data, "%d", defValue);
return atoi(GetValueSet(keyname, valuename, Data).c_str());
}
bool cIniFile::DeleteValueByID(const int keyID, const int valueID)
{
if ((keyID < (int)keys.size()) && (valueID < (int)keys[keyID].names.size()))
{
// This looks strange, but is neccessary.
vector<AString>::iterator npos = keys[keyID].names.begin() + valueID;
vector<AString>::iterator vpos = keys[keyID].values.begin() + valueID;
keys[keyID].names.erase(npos, npos + 1);
keys[keyID].values.erase(vpos, vpos + 1);
return true;
}
return false;
}
bool cIniFile::DeleteValue(const AString & keyname, const AString & valuename)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return false;
}
int valueID = FindValue(int(keyID), valuename);
if (valueID == noID)
{
return false;
}
return DeleteValueByID(keyID, valueID);
}
bool cIniFile::DeleteKey(const AString & keyname)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return false;
}
vector<AString>::iterator npos = names.begin() + keyID;
vector<key>::iterator kpos = keys.begin() + keyID;
names.erase(npos, npos + 1);
keys.erase(kpos, kpos + 1);
return true;
}
void cIniFile::Clear(void)
{
names.clear();
keys.clear();
comments.clear();
}
void cIniFile::AddHeaderComment(const AString & comment)
{
comments.push_back(comment);
// comments.resize(comments.size() + 1, comment);
}
AString cIniFile::GetHeaderComment(const int commentID) const
{
if (commentID < (int)comments.size())
{
return comments[commentID];
}
return "";
}
bool cIniFile::DeleteHeaderComment(int commentID)
{
if (commentID < (int)comments.size())
{
vector<AString>::iterator cpos = comments.begin() + commentID;
comments.erase(cpos, cpos + 1);
return true;
}
return false;
}
int cIniFile::GetNumKeyComments(const int keyID) const
{
if (keyID < (int)keys.size())
{
return keys[keyID].comments.size();
}
return 0;
}
int cIniFile::GetNumKeyComments(const AString & keyname) const
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return 0;
}
return (int)keys[keyID].comments.size();
}
bool cIniFile::AddKeyComment(const int keyID, const AString & comment)
{
if (keyID < (int)keys.size())
{
keys[keyID].comments.resize(keys[keyID].comments.size() + 1, comment);
return true;
}
return false;
}
bool cIniFile::AddKeyComment(const AString & keyname, const AString & comment)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return false;
}
return AddKeyComment(keyID, comment);
}
AString cIniFile::GetKeyComment(const int keyID, const int commentID) const
{
if ((keyID < (int)keys.size()) && (commentID < (int)keys[keyID].comments.size()))
{
return keys[keyID].comments[commentID];
}
return "";
}
AString cIniFile::GetKeyComment(const AString & keyname, const int commentID) const
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return "";
}
return GetKeyComment(int(keyID), commentID);
}
bool cIniFile::DeleteKeyComment(const int keyID, const int commentID)
{
if ((keyID < (int)keys.size()) && (commentID < (int)keys[keyID].comments.size()))
{
vector<AString>::iterator cpos = keys[keyID].comments.begin() + commentID;
keys[keyID].comments.erase(cpos, cpos + 1);
return true;
}
return false;
}
bool cIniFile::DeleteKeyComment(const AString & keyname, const int commentID)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return false;
}
return DeleteKeyComment(int(keyID), commentID);
}
bool cIniFile::DeleteKeyComments(const int keyID)
{
if (keyID < (int)keys.size())
{
keys[keyID].comments.clear();
return true;
}
return false;
}
bool cIniFile::DeleteKeyComments(const AString & keyname)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return false;
}
return DeleteKeyComments(int(keyID));
}
AString cIniFile::CheckCase(const AString & s) const
{
if (!m_IsCaseInsensitive)
{
return s;
}
AString res(s);
size_t len = res.length();
for (size_t i = 0; i < len; i++)
{
res[i] = tolower(res[i]);
}
return res;
}
void cIniFile::RemoveBom(AString & a_line) const
{
// The BOM sequence for UTF-8 is 0xEF,0xBB,0xBF
static unsigned const char BOM[] = { 0xEF, 0xBB, 0xBF };
// The BOM sequence, if present, is always th e first three characters of the input.
const AString ref = a_line.substr(0, 3);
// If any of the first three chars do not match, return and do nothing.
for (int i = 0; i < 3; ++i)
{
if (static_cast<unsigned char>(ref[i]) != BOM[i])
{
return;
}
}
// First three characters match; erase them.
a_line.erase(0, 3);
}
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