assimp.assimp/code/AssetLib/X3D/X3DImporter_Networking.cpp

/*
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 [email protected]

#ifndef ASSIMP_BUILD_NO_X3D_IMPORTER

#include "X3DImporter.hpp"
#include "X3DImporter_Macro.hpp"

// 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::ParseNode_Networking_Inline()
{
    std::string def, use;
    bool load = true;
    std::list<std::string> url;

	MACRO_ATTRREAD_LOOPBEG;
		MACRO_ATTRREAD_CHECKUSEDEF_RET(def, use);
		MACRO_ATTRREAD_CHECK_RET("load", load, XML_ReadNode_GetAttrVal_AsBool);
		MACRO_ATTRREAD_CHECK_REF("url", url, XML_ReadNode_GetAttrVal_AsListS);
	MACRO_ATTRREAD_LOOPEND;

	// if "USE" defined then find already defined element.
	if(!use.empty())
	{
		CX3DImporter_NodeElement* ne;

		MACRO_USE_CHECKANDAPPLY(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()) NodeElement_Cur->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(!mReader->isEmptyElement()) ParseNode_Metadata(NodeElement_Cur, "Inline");

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

}// namespace Assimp

#endif // !ASSIMP_BUILD_NO_X3D_IMPORTER