Awoo-Installer/source/util/INIReader.cpp
2019-10-26 00:38:12 -04:00

108 lines
3.3 KiB
C++
Executable file

// Read an INI file into easy-to-access name/value pairs.
// SPDX-License-Identifier: BSD-3-Clause
// Copyright (C) 2009-2019, Ben Hoyt
// inih and INIReader are released under the New BSD license (see LICENSE.txt).
// Go to the project home page for more info:
//
// https://github.com/benhoyt/inih
#include <algorithm>
#include <cctype>
#include <cstdlib>
#include "ini.h"
#include "INIReader.h"
using std::string;
INIReader::INIReader(const string& filename)
{
_error = ini_parse(filename.c_str(), ValueHandler, this);
}
int INIReader::ParseError() const
{
return _error;
}
string INIReader::Get(const string& section, const string& name, const string& default_value) const
{
string key = MakeKey(section, name);
// Use _values.find() here instead of _values.at() to support pre C++11 compilers
return _values.count(key) ? _values.find(key)->second : default_value;
}
string INIReader::GetString(const string& section, const string& name, const string& default_value) const
{
const string str = Get(section, name, "");
return str.empty() ? default_value : str;
}
long INIReader::GetInteger(const string& section, const string& name, long default_value) const
{
string valstr = Get(section, name, "");
const char* value = valstr.c_str();
char* end;
// This parses "1234" (decimal) and also "0x4D2" (hex)
long n = strtol(value, &end, 0);
return end > value ? n : default_value;
}
double INIReader::GetReal(const string& section, const string& name, double default_value) const
{
string valstr = Get(section, name, "");
const char* value = valstr.c_str();
char* end;
double n = strtod(value, &end);
return end > value ? n : default_value;
}
bool INIReader::GetBoolean(const string& section, const string& name, bool default_value) const
{
string valstr = Get(section, name, "");
// Convert to lower case to make string comparisons case-insensitive
std::transform(valstr.begin(), valstr.end(), valstr.begin(), ::tolower);
if (valstr == "true" || valstr == "yes" || valstr == "on" || valstr == "1")
return true;
else if (valstr == "false" || valstr == "no" || valstr == "off" || valstr == "0")
return false;
else
return default_value;
}
bool INIReader::HasSection(const string& section) const
{
const string key = MakeKey(section, "");
std::map<string, string>::const_iterator pos = _values.lower_bound(key);
if (pos == _values.end())
return false;
// Does the key at the lower_bound pos start with "section"?
return pos->first.compare(0, key.length(), key) == 0;
}
bool INIReader::HasValue(const string& section, const string& name) const
{
string key = MakeKey(section, name);
return _values.count(key);
}
string INIReader::MakeKey(const string& section, const string& name)
{
string key = section + "=" + name;
// Convert to lower case to make section/name lookups case-insensitive
std::transform(key.begin(), key.end(), key.begin(), ::tolower);
return key;
}
int INIReader::ValueHandler(void* user, const char* section, const char* name,
const char* value)
{
INIReader* reader = static_cast<INIReader*>(user);
string key = MakeKey(section, name);
if (reader->_values[key].size() > 0)
reader->_values[key] += "\n";
reader->_values[key] += value;
return 1;
}