dolphin/Source/Core/Common/Src/IniFile.cpp

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// Copyright (C) 2003-2008 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
// see IniFile.h
#include <stdlib.h>
#include <stdio.h>
#include <string>
#include <vector>
#include <iostream>
#include <fstream>
#include <algorithm>
#include "StringUtil.h"
#include "IniFile.h"
IniFile::IniFile()
{}
IniFile::~IniFile()
{}
Section::Section()
: lines(), name(""), comment("") {}
Section::Section(const std::string& _name)
: lines(), name(_name), comment("") {}
Section::Section(const Section& other)
{
name = other.name;
comment = other.comment;
lines = other.lines;
}
Section* IniFile::GetSection(const char* sectionName)
{
for (std::vector<Section>::iterator iter = sections.begin(); iter != sections.end(); ++iter)
{
if (!strcmp(iter->name.c_str(), sectionName))
{
return(&(*iter));
}
}
return(0);
}
Section* IniFile::GetOrCreateSection(const char* sectionName)
{
Section* section = GetSection(sectionName);
if (!section)
{
sections.push_back(Section(sectionName));
section = &sections[sections.size() - 1];
}
return(section);
}
bool IniFile::DeleteSection(const char* sectionName)
{
Section* s = GetSection(sectionName);
if (!s)
{
return(false);
}
for (std::vector<Section>::iterator iter = sections.begin(); iter != sections.end(); ++iter)
{
if (&(*iter) == s)
{
sections.erase(iter);
return(true);
}
}
return(false);
}
void IniFile::ParseLine(const std::string& line, std::string* keyOut, std::string* valueOut, std::string* commentOut)
{
// allow many types of commenting
// These MUST be signed! Do not change to size_t
int firstEquals = (int)line.find("=", 0);
int firstCommentChar = (int)line.find(";", 0);
if (firstCommentChar < 0){firstCommentChar = (int)line.find("#", firstEquals > 0 ? firstEquals : 0);}
if (firstCommentChar < 0){firstCommentChar = (int)line.find("//", firstEquals > 0 ? firstEquals : 0);}
// allow preserval of spacing before comment
if (firstCommentChar > 0)
{
while (line[firstCommentChar - 1] == ' ' || line[firstCommentChar - 1] == 9) // 9 == tab
{
firstCommentChar--;
}
}
if ((firstEquals >= 0) && ((firstCommentChar < 0) || (firstEquals < firstCommentChar)))
{
// Yes, a valid line!
*keyOut = StripSpaces(line.substr(0, firstEquals));
if (commentOut)
{
*commentOut = firstCommentChar > 0 ? line.substr(firstCommentChar) : std::string("");
}
if (valueOut)
{
*valueOut = StripQuotes(StripSpaces(line.substr(firstEquals + 1, firstCommentChar - firstEquals - 1)));
}
}
}
std::string* IniFile::GetLine(Section* section, const char* key, std::string* valueOut, std::string* commentOut)
{
for (std::vector<std::string>::iterator iter = section->lines.begin(); iter != section->lines.end(); ++iter)
{
std::string& line = *iter;
std::string lineKey;
ParseLine(line, &lineKey, valueOut, commentOut);
if (!stricmp(lineKey.c_str(), key))
{
return(&line);
}
}
return(0);
}
void IniFile::Set(const char* sectionName, const char* key, const char* newValue)
{
Section* section = GetOrCreateSection(sectionName);
std::string value, comment;
std::string* line = GetLine(section, key, &value, &comment);
if (line)
{
// Change the value - keep the key and comment
*line = StripSpaces(key) + " = " + newValue + comment;
}
else
{
// The key did not already exist in this section - let's add it.
section->lines.push_back(std::string(key) + " = " + newValue);
}
}
void IniFile::Set(const char* sectionName, const char* key, u32 newValue)
{
Set(sectionName, key, StringFromFormat("0x%08x", newValue).c_str());
}
void IniFile::Set(const char* sectionName, const char* key, int newValue)
{
Set(sectionName, key, StringFromInt(newValue).c_str());
}
void IniFile::Set(const char* sectionName, const char* key, bool newValue)
{
Set(sectionName, key, StringFromBool(newValue).c_str());
}
bool IniFile::Get(const char* sectionName, const char* key, std::string* value, const char* defaultValue)
{
Section* section = GetSection(sectionName);
if (!section)
{
if (defaultValue)
{
*value = defaultValue;
}
return(false);
}
std::string* line = GetLine(section, key, value, 0);
if (!line)
{
if (defaultValue)
{
*value = defaultValue;
}
return(false);
}
return(true);
}
bool IniFile::Get(const char* sectionName, const char* key, int* value, int defaultValue)
{
std::string temp;
bool retval = Get(sectionName, key, &temp, 0);
if (retval && TryParseInt(temp.c_str(), value))
{
return(true);
}
*value = defaultValue;
return(false);
}
bool IniFile::Get(const char* sectionName, const char* key, u32* value, u32 defaultValue)
{
std::string temp;
bool retval = Get(sectionName, key, &temp, 0);
if (retval && TryParseUInt(temp.c_str(), value))
{
return(true);
}
*value = defaultValue;
return(false);
}
bool IniFile::Get(const char* sectionName, const char* key, bool* value, bool defaultValue)
{
std::string temp;
bool retval = Get(sectionName, key, &temp, 0);
if (retval && TryParseBool(temp.c_str(), value))
{
return(true);
}
*value = defaultValue;
return(false);
}
bool IniFile::DeleteKey(const char* sectionName, const char* key)
{
Section* section = GetSection(sectionName);
if (!section)
{
return(false);
}
std::string* line = GetLine(section, key, 0, 0);
for (std::vector<std::string>::iterator liter = section->lines.begin(); liter != section->lines.end(); ++liter)
{
if (line == &(*liter))
{
section->lines.erase(liter);
return(true);
}
}
return(false); //shouldn't happen
}
bool IniFile::Load(const char* filename)
{
sections.clear();
sections.push_back(Section(""));
//first section consists of the comments before the first real section
std::ifstream in;
in.open(filename, std::ios::in);
if (in.fail())
{
return(false);
}
while (!in.eof())
{
char templine[512];
in.getline(templine, 512);
std::string line = templine;
if (in.eof())
{
break;
}
if (line.size() > 0)
{
if (line[0] == '[')
{
size_t endpos = line.find("]");
if (endpos != std::string::npos)
{
// New section!
std::string sub = line.substr(1, endpos - 1);
sections.push_back(Section(sub));
if (endpos + 1 < line.size())
{
sections[sections.size() - 1].comment = line.substr(endpos + 1);
}
}
}
else
{
sections[sections.size() - 1].lines.push_back(line);
}
}
}
in.close();
return(true);
}
bool IniFile::Save(const char* filename)
{
std::ofstream out;
out.open(filename, std::ios::out);
if (out.fail())
{
return(false);
}
for (std::vector<Section>::const_iterator iter = sections.begin(); iter != sections.end(); ++iter)
{
const Section& section = *iter;
if (section.name != "")
{
out << "[" << section.name << "]" << section.comment << std::endl;
}
for (std::vector<std::string>::const_iterator liter = section.lines.begin(); liter != section.lines.end(); ++liter)
{
std::string s = *liter;
out << s << std::endl;
}
}
out.close();
return(true);
}
bool IniFile::GetKeys(const char* sectionName, std::vector<std::string>& keys)
{
Section* section = GetSection(sectionName);
if (!section)
{
return(false);
}
keys.clear();
for (std::vector<std::string>::const_iterator liter = section->lines.begin(); liter != section->lines.end(); ++liter)
{
std::string key;
ParseLine(*liter, &key, 0, 0);
keys.push_back(key);
}
return(true);
}
bool IniFile::GetLines(const char* sectionName, std::vector<std::string>& lines)
{
Section* section = GetSection(sectionName);
if (!section)
{
return(false);
}
lines.clear();
for (std::vector<std::string>::const_iterator iter = section->lines.begin(); iter != section->lines.end(); ++iter)
{
std::string line = StripSpaces(*iter);
int commentPos = (int)line.find('#');
if (commentPos == 0)
{
continue;
}
if (commentPos != (int)std::string::npos)
{
line = StripSpaces(line.substr(0, commentPos));
}
lines.push_back(line);
}
lines = section->lines;
return(true);
}
void IniFile::SortSections()
{
std::sort(sections.begin(), sections.end());
}
/*
int main()
{
IniFile ini;
ini.Load("my.ini");
ini.Set("Hej", "A", "amaskdfl");
ini.Set("Mossa", "A", "amaskdfl");
ini.Set("Aissa", "A", "amaskdfl");
//ini.Read("my.ini");
std::string x;
ini.Get("Hej", "B", &x, "boo");
ini.DeleteKey("Mossa", "A");
ini.DeleteSection("Mossa");
ini.SortSections();
ini.Save("my.ini");
//UpdateVars(ini);
return 0;
}
*/