501 lines
11 KiB
C++
501 lines
11 KiB
C++
// Copyright 2013 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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// see IniFile.h
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#include <stdlib.h>
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#include <stdio.h>
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#include <string>
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#include <vector>
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#include <iostream>
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#include <fstream>
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#include <algorithm>
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#include "FileUtil.h"
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#include "StringUtil.h"
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#include "IniFile.h"
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namespace {
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void ParseLine(const std::string& line, std::string* keyOut, std::string* valueOut)
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{
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if (line[0] == '#')
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return;
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int FirstEquals = (int)line.find("=", 0);
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if (FirstEquals >= 0)
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{
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// Yes, a valid line!
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*keyOut = StripSpaces(line.substr(0, FirstEquals));
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if (valueOut) *valueOut = StripQuotes(StripSpaces(line.substr(FirstEquals + 1, std::string::npos)));
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}
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}
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}
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const std::string& IniFile::NULL_STRING = "";
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void IniFile::Section::Set(const std::string& key, const std::string& newValue)
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{
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auto it = values.find(key);
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if (it != values.end())
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it->second = newValue;
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else
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{
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values[key] = newValue;
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keys_order.push_back(key);
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}
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}
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void IniFile::Section::Set(const std::string& key, const std::string& newValue, const std::string& defaultValue)
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{
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if (newValue != defaultValue)
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Set(key, newValue);
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else
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Delete(key);
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}
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void IniFile::Section::Set(const std::string& key, const float newValue, const float defaultValue)
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{
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if (newValue != defaultValue)
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Set(key, newValue);
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else
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Delete(key);
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}
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void IniFile::Section::Set(const std::string& key, int newValue, int defaultValue)
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{
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if (newValue != defaultValue)
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Set(key, newValue);
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else
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Delete(key);
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}
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void IniFile::Section::Set(const std::string& key, bool newValue, bool defaultValue)
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{
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if (newValue != defaultValue)
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Set(key, newValue);
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else
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Delete(key);
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}
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void IniFile::Section::Set(const std::string& key, const std::vector<std::string>& newValues)
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{
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std::string temp;
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// Join the strings with ,
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for (const std::string& value : newValues)
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{
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temp = value + ",";
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}
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// remove last ,
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temp.resize(temp.length() - 1);
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Set(key, temp);
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}
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bool IniFile::Section::Get(const std::string& key, std::string* value, const std::string& defaultValue)
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{
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auto it = values.find(key);
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if (it != values.end())
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{
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*value = it->second;
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return true;
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}
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else if (&defaultValue != &NULL_STRING)
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{
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*value = defaultValue;
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return true;
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}
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else
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return false;
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}
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bool IniFile::Section::Get(const std::string& key, std::vector<std::string>& out)
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{
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std::string temp;
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bool retval = Get(key, &temp);
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if (!retval || temp.empty())
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{
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return false;
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}
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// ignore starting , if any
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size_t subStart = temp.find_first_not_of(",");
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size_t subEnd;
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// split by ,
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while (subStart != std::string::npos)
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{
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// Find next ,
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subEnd = temp.find_first_of(",", subStart);
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if (subStart != subEnd)
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// take from first char until next ,
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out.push_back(StripSpaces(temp.substr(subStart, subEnd - subStart)));
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// Find the next non , char
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subStart = temp.find_first_not_of(",", subEnd);
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}
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return true;
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}
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bool IniFile::Section::Get(const std::string& key, int* value, int defaultValue)
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{
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std::string temp;
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bool retval = Get(key, &temp);
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if (retval && TryParse(temp, value))
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return true;
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*value = defaultValue;
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return false;
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}
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bool IniFile::Section::Get(const std::string& key, u32* value, u32 defaultValue)
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{
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std::string temp;
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bool retval = Get(key, &temp);
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if (retval && TryParse(temp, value))
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return true;
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*value = defaultValue;
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return false;
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}
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bool IniFile::Section::Get(const std::string& key, bool* value, bool defaultValue)
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{
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std::string temp;
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bool retval = Get(key, &temp);
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if (retval && TryParse(temp, value))
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return true;
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*value = defaultValue;
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return false;
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}
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bool IniFile::Section::Get(const std::string& key, float* value, float defaultValue)
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{
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std::string temp;
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bool retval = Get(key, &temp);
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if (retval && TryParse(temp, value))
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return true;
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*value = defaultValue;
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return false;
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}
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bool IniFile::Section::Get(const std::string& key, double* value, double defaultValue)
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{
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std::string temp;
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bool retval = Get(key, &temp);
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if (retval && TryParse(temp, value))
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return true;
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*value = defaultValue;
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return false;
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}
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bool IniFile::Section::Exists(const std::string& key) const
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{
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return values.find(key) != values.end();
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}
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bool IniFile::Section::Delete(const std::string& key)
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{
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auto it = values.find(key);
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if (it == values.end())
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return false;
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values.erase(it);
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keys_order.erase(std::find(keys_order.begin(), keys_order.end(), key));
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return true;
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}
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// IniFile
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const IniFile::Section* IniFile::GetSection(const std::string& sectionName) const
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{
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for (const Section& sect : sections)
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if (!strcasecmp(sect.name.c_str(), sectionName.c_str()))
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return (&(sect));
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return 0;
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}
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IniFile::Section* IniFile::GetSection(const std::string& sectionName)
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{
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for (Section& sect : sections)
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if (!strcasecmp(sect.name.c_str(), sectionName.c_str()))
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return (&(sect));
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return 0;
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}
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IniFile::Section* IniFile::GetOrCreateSection(const std::string& sectionName)
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{
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Section* section = GetSection(sectionName);
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if (!section)
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{
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sections.push_back(Section(sectionName));
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section = §ions[sections.size() - 1];
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}
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return section;
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}
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bool IniFile::DeleteSection(const std::string& sectionName)
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{
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Section* s = GetSection(sectionName);
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if (!s)
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return false;
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for (auto iter = sections.begin(); iter != sections.end(); ++iter)
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{
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if (&(*iter) == s)
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{
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sections.erase(iter);
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return true;
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}
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}
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return false;
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}
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bool IniFile::Exists(const std::string& sectionName, const std::string& key) const
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{
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const Section* section = GetSection(sectionName);
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if (!section)
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return false;
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return section->Exists(key);
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}
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void IniFile::SetLines(const std::string& sectionName, const std::vector<std::string> &lines)
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{
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Section* section = GetOrCreateSection(sectionName);
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section->lines = lines;
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}
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bool IniFile::DeleteKey(const std::string& sectionName, const std::string& key)
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{
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Section* section = GetSection(sectionName);
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if (!section)
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return false;
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return section->Delete(key);
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}
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// Return a list of all keys in a section
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bool IniFile::GetKeys(const std::string& sectionName, std::vector<std::string>& keys) const
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{
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const Section* section = GetSection(sectionName);
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if (!section)
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return false;
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keys = section->keys_order;
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return true;
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}
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// Return a list of all lines in a section
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bool IniFile::GetLines(const std::string& sectionName, std::vector<std::string>& lines, const bool remove_comments) const
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{
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const Section* section = GetSection(sectionName);
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if (!section)
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return false;
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lines.clear();
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for (std::string line : section->lines)
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{
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line = StripSpaces(line);
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if (remove_comments)
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{
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int commentPos = (int)line.find('#');
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if (commentPos == 0)
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{
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continue;
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}
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if (commentPos != (int)std::string::npos)
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{
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line = StripSpaces(line.substr(0, commentPos));
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}
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}
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lines.push_back(line);
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}
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return true;
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}
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void IniFile::SortSections()
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{
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std::sort(sections.begin(), sections.end());
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}
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bool IniFile::Load(const std::string& filename, bool keep_current_data)
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{
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// Maximum number of letters in a line
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static const int MAX_BYTES = 1024*32;
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if (!keep_current_data)
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sections.clear();
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// first section consists of the comments before the first real section
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// Open file
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std::ifstream in;
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OpenFStream(in, filename, std::ios::in);
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if (in.fail()) return false;
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Section* current_section = NULL;
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while (!in.eof())
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{
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char templine[MAX_BYTES];
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in.getline(templine, MAX_BYTES);
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std::string line = templine;
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#ifndef _WIN32
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// Check for CRLF eol and convert it to LF
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if (!line.empty() && line.at(line.size()-1) == '\r')
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{
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line.erase(line.size()-1);
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}
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#endif
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if (line.size() > 0)
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{
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if (line[0] == '[')
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{
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size_t endpos = line.find("]");
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if (endpos != std::string::npos)
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{
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// New section!
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std::string sub = line.substr(1, endpos - 1);
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current_section = GetOrCreateSection(sub);
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}
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}
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else
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{
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if (current_section)
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{
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std::string key, value;
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ParseLine(line, &key, &value);
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// Lines starting with '$', '*' or '+' are kept verbatim.
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// Kind of a hack, but the support for raw lines inside an
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// INI is a hack anyway.
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if ((key == "" && value == "")
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|| (line.size() >= 1 && (line[0] == '$' || line[0] == '+' || line[0] == '*')))
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current_section->lines.push_back(line);
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else
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current_section->Set(key, value);
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}
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}
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}
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}
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in.close();
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return true;
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}
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bool IniFile::Save(const std::string& filename)
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{
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std::ofstream out;
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std::string temp = File::GetTempFilenameForAtomicWrite(filename);
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OpenFStream(out, temp, std::ios::out);
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if (out.fail())
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{
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return false;
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}
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for (const Section& section : sections)
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{
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if (section.keys_order.size() != 0 || section.lines.size() != 0)
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out << "[" << section.name << "]" << std::endl;
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if (section.keys_order.size() == 0)
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{
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for (const std::string& s : section.lines)
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out << s << std::endl;
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}
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else
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{
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for (const std::string& kvit : section.keys_order)
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{
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auto pair = section.values.find(kvit);
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out << pair->first << " = " << pair->second << std::endl;
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}
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}
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}
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out.close();
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return File::RenameSync(temp, filename);
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}
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bool IniFile::Get(const std::string& sectionName, const std::string& key, std::vector<std::string>& values)
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{
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Section *section = GetSection(sectionName);
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if (!section)
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return false;
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return section->Get(key, values);
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}
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bool IniFile::Get(const std::string& sectionName, const std::string& key, int* value, int defaultValue)
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{
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Section *section = GetSection(sectionName);
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if (!section) {
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*value = defaultValue;
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return false;
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} else {
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return section->Get(key, value, defaultValue);
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}
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}
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bool IniFile::Get(const std::string& sectionName, const std::string& key, u32* value, u32 defaultValue)
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{
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Section *section = GetSection(sectionName);
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if (!section) {
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*value = defaultValue;
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return false;
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} else {
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return section->Get(key, value, defaultValue);
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}
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}
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bool IniFile::Get(const std::string& sectionName, const std::string& key, bool* value, bool defaultValue)
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{
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Section *section = GetSection(sectionName);
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if (!section) {
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*value = defaultValue;
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return false;
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} else {
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return section->Get(key, value, defaultValue);
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}
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}
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bool IniFile::Get(const std::string& sectionName, const std::string& key, std::string* value, const std::string& defaultValue)
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{
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Section* section = GetSection(sectionName);
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if (!section) {
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if (&defaultValue != &NULL_STRING) {
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*value = defaultValue;
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}
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return false;
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}
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return section->Get(key, value, defaultValue);
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}
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// Unit test. TODO: Move to the real unit test framework.
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/*
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int main()
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{
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IniFile ini;
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ini.Load("my.ini");
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ini.Set("Hej", "A", "amaskdfl");
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ini.Set("Mossa", "A", "amaskdfl");
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ini.Set("Aissa", "A", "amaskdfl");
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//ini.Read("my.ini");
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std::string x;
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ini.Get("Hej", "B", &x, "boo");
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ini.DeleteKey("Mossa", "A");
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ini.DeleteSection("Mossa");
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ini.SortSections();
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ini.Save("my.ini");
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//UpdateVars(ini);
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return 0;
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}
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*/
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