assimp/code/AssetLib/X3D/X3DImporter_Networking.cpp

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Open Asset Import Library (assimp)
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/// \file   X3DImporter_Networking.cpp
/// \brief  Parsing data from nodes of "Networking" set of X3D.
/// date   2015-2016
/// author smal.root@gmail.com

#ifndef ASSIMP_BUILD_NO_X3D_IMPORTER

#include "X3DImporter.hpp"
#include "X3DImporter_Macro.hpp"
#include "X3DXmlHelper.h"

// Header files, Assimp.
#include <assimp/DefaultIOSystem.h>

//#include <regex>

namespace Assimp {

//static std::regex pattern_parentDir(R"((^|/)[^/]+/../)");
static std::string parentDir("/../");

// <Inline
// DEF=""              ID
// USE=""              IDREF
// bboxCenter="0 0 0"  SFVec3f  [initializeOnly]
// bboxSize="-1 -1 -1" SFVec3f  [initializeOnly]
// load="true"         SFBool   [inputOutput]
// url=""              MFString [inputOutput]
// />
void X3DImporter::readInline(XmlNode &node) {
    std::string def, use;
    bool load = true;
    std::list<std::string> url;

    MACRO_ATTRREAD_CHECKUSEDEF_RET(node, def, use);
    XmlParser::getBoolAttribute(node, "load", load);
    X3DXmlHelper::getStringListAttribute(node, "url", url);

    // if "USE" defined then find already defined element.
    X3DNodeElementBase *ne = nullptr;
    if (!use.empty()) {
        ne = MACRO_USE_CHECKANDAPPLY(node, def, use, ENET_Group, ne);
    } else {
        ParseHelper_Group_Begin(true); // create new grouping element and go deeper if node has children.
        // at this place new group mode created and made current, so we can name it.
        if (!def.empty()) mNodeElementCur->ID = def;

        if (load && !url.empty()) {
            std::string full_path = mpIOHandler->CurrentDirectory() + url.front();

            //full_path = std::regex_replace(full_path, pattern_parentDir, "$1");
            for (std::string::size_type pos = full_path.find(parentDir); pos != std::string::npos; pos = full_path.find(parentDir, pos)) {
                if (pos > 0) {
                    std::string::size_type pos2 = full_path.rfind('/', pos - 1);
                    if (pos2 != std::string::npos) {
                        full_path.erase(pos2, pos - pos2 + 3);
                        pos = pos2;
                    } else {
                        full_path.erase(0, pos + 4);
                        pos = 0;
                    }
                } else {
                    pos += 3;
                }
            }
            // Attribute "url" can contain list of strings. But we need only one - first.
            std::string::size_type slashPos = full_path.find_last_of("\\/");
            mpIOHandler->PushDirectory(slashPos == std::string::npos ? std::string() : full_path.substr(0, slashPos + 1));
            ParseFile(full_path, mpIOHandler);
            mpIOHandler->PopDirectory();
        }

        // check for X3DMetadataObject childs.
        if (!isNodeEmpty(node)) childrenReadMetadata(node, mNodeElementCur, "Inline");

        // exit from node in that place
        ParseHelper_Node_Exit();
    } // if(!use.empty()) else
}

} // namespace Assimp

#endif // !ASSIMP_BUILD_NO_X3D_IMPORTER