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gnss-sdr/src/core/libs/INIReader.cc

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/*!
* \file INIReader.cc
* \brief This class reads an INI file into easy-to-access name/value pairs.
* \author Brush Technologies, 2009.
*
* inih (INI Not Invented Here) is a simple .INI file parser written in C++.
* It's only a couple of pages of code, and it was designed to be small
* and simple, so it's good for embedded systems. To use it, just give
* ini_parse() an INI file, and it will call a callback for every
* name=value pair parsed, giving you strings for the section, name,
* and value. It's done this way because it works well on low-memory
* embedded systems, but also because it makes for a KISS implementation.
*
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* -----------------------------------------------------------------------------
* inih and INIReader are released under the New BSD license:
*
* Copyright (c) 2009, Brush Technology
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
* Go to the project home page for more info:
*
* https://github.com/benhoyt/inih
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* -----------------------------------------------------------------------------
*/
#include "INIReader.h"
#include "ini.h"
#include <cctype> // for tolower
#include <cstdlib> // for stro
#include <utility>
INIReader::INIReader(const std::string& filename)
{
_error = ini_parse(filename.c_str(), ValueHandler, this);
}
int INIReader::ParseError() const
{
return _error;
}
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std::string INIReader::Get(const std::string& section, const std::string& name, const std::string& default_value)
{
std::string key = MakeKey(section, name);
return _values.count(key) ? _values[key] : default_value;
}
int64_t INIReader::GetInteger(const std::string& section, const std::string& name, int64_t default_value)
{
std::string valstr = Get(section, name, "");
const char* value = valstr.c_str();
char* end;
// This parses "1234" (decimal) and also "0x4D2" (hex)
int64_t n = strtol(value, &end, 0);
return end > value ? n : default_value;
}
std::string INIReader::MakeKey(const std::string& section, const std::string& name)
{
std::string key = section + "." + name;
// Convert to lower case to make lookups case-insensitive
for (char& i : key)
{
i = tolower(i);
}
return key;
}
int INIReader::ValueHandler(void* user, const char* section, const char* name,
const char* value)
{
auto* reader = static_cast<INIReader*>(user);
reader->_values[MakeKey(section, name)] = value;
return 1;
}