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// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "../default.h"
namespace embree
{
/* an XML node */
class XML : public RefCount
{
public:
XML (const std::string& name = "") : name(name) {}
/*! returns number of children of XML node */
size_t size() const { return children.size(); }
/*! checks if child with specified node tag exists */
bool hasChild(const std::string& childID) const
{
for (size_t i=0; i<children.size(); i++)
if (children[i]->name == childID) return true;
return false;
}
/*! returns a parameter of the XML node */
std::string parm(const std::string& parmID) const {
std::map<std::string,std::string>::const_iterator i = parms.find(parmID);
if (i == parms.end()) return ""; else return i->second;
}
Vec2f parm_Vec2f(const std::string& parmID) const {
std::map<std::string,std::string>::const_iterator i = parms.find(parmID);
if (i == parms.end()) THROW_RUNTIME_ERROR (loc.str()+": XML node has no parameter \"" + parmID + "\"");
return string_to_Vec2f(i->second);
}
Vec3fa parm_Vec3fa(const std::string& parmID) const {
std::map<std::string,std::string>::const_iterator i = parms.find(parmID);
if (i == parms.end()) THROW_RUNTIME_ERROR (loc.str()+": XML node has no parameter \"" + parmID + "\"");
return Vec3fa(string_to_Vec3f(i->second));
}
float parm_float(const std::string& parmID) const {
std::map<std::string,std::string>::const_iterator i = parms.find(parmID);
if (i == parms.end()) THROW_RUNTIME_ERROR (loc.str()+": XML node has no parameter \"" + parmID + "\"");
return std::stof(i->second);
}
/*! returns the nth child */
const Ref<XML> child(const size_t id) const
{
if (id >= children.size())
THROW_RUNTIME_ERROR (loc.str()+": XML node has no child \"" + toString(id) + "\"");
return children[id];
}
/*! returns child by node tag */
const Ref<XML> child(const std::string& childID) const
{
for (size_t i=0; i<children.size(); i++)
if (children[i]->name == childID) return children[i];
THROW_RUNTIME_ERROR (loc.str()+": XML node has no child \"" + childID + "\"");
}
/*! returns child by node tag without failing */
const Ref<XML> childOpt(const std::string& childID) const
{
for (size_t i=0; i<children.size(); i++)
if (children[i]->name == childID) return children[i];
return null;
}
/*! adds a new parameter to the node */
Ref<XML> add(const std::string& name, const std::string& val) {
parms[name] = val;
return this;
}
/*! adds a new child */
Ref<XML> add(const Ref<XML>& xml) {
children.push_back(xml);
return this;
}
/*! adds new data tokens to the body of the node */
Ref<XML> add(const Token& tok) {
body.push_back(tok);
return this;
}
/*! compares two XML nodes */
friend bool operator ==( const Ref<XML>& a, const Ref<XML>& b ) {
return a->name == b->name && a->parms == b->parms && a->children == b->children && a->body == b->body;
}
/*! orders two XML nodes */
friend bool operator <( const Ref<XML>& a, const Ref<XML>& b ) {
if (a->name != b->name ) return a->name < b->name;
if (a->parms != b->parms ) return a->parms < b->parms;
if (a->children != b->children) return a->children < b->children;
if (a->body != b->body ) return a->body < b->body;
return false;
}
public:
ParseLocation loc;
std::string name;
std::map<std::string,std::string> parms;
std::vector<Ref<XML> > children;
std::vector<Token> body;
};
/*! load XML file from stream */
std::istream& operator>>(std::istream& cin, Ref<XML>& xml);
/*! load XML file from disk */
Ref<XML> parseXML(const FileName& fileName, std::string id = "", bool hasHeader = true);
/* store XML to stream */
std::ostream& operator<<(std::ostream& cout, const Ref<XML>& xml);
/*! store XML to disk */
void emitXML(const FileName& fileName, const Ref<XML>& xml);
}
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