CConfigFileMemory.cpp

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/* +------------------------------------------------------------------------+
|                     Mobile Robot Programming Toolkit (MRPT)            |
|                          https://www.mrpt.org/                         |
|                                                                        |
| Copyright (c) 2005-2019, Individual contributors, see AUTHORS file     |
| See: https://www.mrpt.org/Authors - All rights reserved.               |
| Released under BSD License. See: https://www.mrpt.org/License          |
+------------------------------------------------------------------------+ */

#include "config-precomp.h"  // Precompiled headers

#include <mrpt/config/CConfigFileMemory.h>
#include <mrpt/system/string_utils.h>
#include "simpleini/SimpleIni.h"

using namespace mrpt;
using namespace mrpt::config;
using namespace mrpt::config::simpleini;
using namespace std;

#define THE_INI m_impl->m_ini

struct CConfigFileMemory::Impl
{
    MRPT_CSimpleIni m_ini;
};

CConfigFileMemory::CConfigFileMemory(const std::vector<std::string>& stringList)
    : m_impl(mrpt::make_impl<CConfigFileMemory::Impl>())
{
    // Load the strings:
    std::string aux;
    mrpt::system::stringListAsString(stringList, aux);
    THE_INI.Load(aux.c_str(), aux.size());
}

CConfigFileMemory::CConfigFileMemory(const std::string& str)
    : m_impl(mrpt::make_impl<CConfigFileMemory::Impl>())
{
    // Load the strings:
    THE_INI.Load(str.c_str(), str.size());
    THE_INI.Reset();
}

/*---------------------------------------------------------------
                    Constructor
 ---------------------------------------------------------------*/
CConfigFileMemory::CConfigFileMemory()
    : m_impl(mrpt::make_impl<CConfigFileMemory::Impl>())
{
}

void CConfigFileMemory::setContent(const std::vector<std::string>& stringList)
{
    // Load the strings:
    std::string aux;
    mrpt::system::stringListAsString(stringList, aux);
    THE_INI.Load(aux.c_str(), aux.size());
}

void CConfigFileMemory::setContent(const std::string& str)
{
    THE_INI.Load(str.c_str(), str.size());
}

void CConfigFileMemory::getContent(std::string& str) const
{
    m_impl->m_ini.Save(str);
}

CConfigFileMemory::~CConfigFileMemory() = default;
void CConfigFileMemory::writeString(
    const std::string& section, const std::string& name, const std::string& str)
{
    MRPT_START

    SI_Error ret =
        THE_INI.SetValue(section.c_str(), name.c_str(), str.c_str(), nullptr);
    if (ret < 0) THROW_EXCEPTION("Error changing value in INI-style file!");

    MRPT_END
}

std::string CConfigFileMemory::readString(
    const std::string& section, const std::string& name,
    const std::string& defaultStr, bool failIfNotFound) const
{
    MRPT_START
    const char* defVal = failIfNotFound ? nullptr : defaultStr.c_str();

    const char* aux = m_impl->m_ini.GetValue(
        section.c_str(), name.c_str(), defVal,
        nullptr);  // The memory is managed by the SimpleIni object

    if (failIfNotFound && !aux)
    {
        string tmpStr(format(
            "Value '%s' not found in section '%s' of memory configuration "
            "string list and failIfNotFound=true.",
            name.c_str(), section.c_str()));
        THROW_EXCEPTION(tmpStr);
    }

    // Remove possible comments: "//"
    std::string ret = aux;
    size_t pos;
    if ((pos = ret.find("//")) != string::npos && pos > 0 &&
        isspace(ret[pos - 1]))
        ret = ret.substr(0, pos);
    return ret;
    MRPT_END
}

void CConfigFileMemory::getAllSections(std::vector<std::string>& sections) const
{
    MRPT_CSimpleIni::TNamesDepend names;
    m_impl->m_ini.GetAllSections(names);

    MRPT_CSimpleIni::TNamesDepend::iterator n;
    std::vector<std::string>::iterator s;
    sections.resize(names.size());
    for (n = names.begin(), s = sections.begin(); n != names.end(); ++n, ++s)
        *s = n->pItem;
}

void CConfigFileMemory::getAllKeys(
    const string& section, std::vector<std::string>& keys) const
{
    MRPT_CSimpleIni::TNamesDepend names;
    m_impl->m_ini.GetAllKeys(section.c_str(), names);

    MRPT_CSimpleIni::TNamesDepend::iterator n;
    std::vector<std::string>::iterator s;
    keys.resize(names.size());
    for (n = names.begin(), s = keys.begin(); n != names.end(); ++n, ++s)
        *s = n->pItem;
}

void CConfigFileMemory::clear() { m_impl->m_ini.Reset(); }