/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 */

#include <vcl/font/FeatureParser.hxx>

#include <vcl/font/Feature.hxx>

#include <o3tl/string_view.hxx>

namespace vcl::font

{

OUString trimFontNameFeatures(OUString const& rFontName)

{

    const sal_Int32 nPrefixIdx{ rFontName.indexOf(vcl::font::FeaturePrefix) };

    if (nPrefixIdx < 0)

        return rFontName;

    return rFontName.copy(0, nPrefixIdx);

}

FeatureParser::FeatureParser(std::u16string_view rFontName)

{

    size_t nPrefixIdx{ rFontName.find(vcl::font::FeaturePrefix) };

    if (nPrefixIdx == std::u16string_view::npos)

        return;

    std::u16string_view sName(rFontName.substr(++nPrefixIdx));

    sal_Int32 nIndex = 0;

    do

    {

        std::u16string_view sToken = o3tl::getToken(sName, 0, vcl::font::FeatureSeparator, nIndex);

        sal_Int32 nInnerIdx{ 0 };

        std::u16string_view sID = o3tl::getToken(sToken, 0, '=', nInnerIdx);

        if (sID == u"lang")

        {

            m_sLanguage = o3tl::getToken(sToken, 0, '=', nInnerIdx);

        }

        else

        {

            FeatureSetting aFeature(OUStringToOString(sToken, RTL_TEXTENCODING_ASCII_US));

            if (aFeature.m_nTag != 0)

                m_aFeatures.push_back(aFeature);

        }

    } while (nIndex >= 0);

}

std::unordered_map<uint32_t, int32_t> FeatureParser::getFeaturesMap() const

{

    std::unordered_map<uint32_t, int32_t> aResultMap;

    for (auto const& rFeat : m_aFeatures)

        aResultMap.emplace(rFeat.m_nTag, rFeat.m_nValue);

    return aResultMap;

}

} // end vcl::font namespace

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */