VVVVVV/desktop_version/src/XMLUtils.h

// Forward decl, avoid including tinyxml2.h
namespace tinyxml2
{
    class XMLComment;
    class XMLDocument;
    class XMLDeclaration;
    class XMLElement;
    class XMLNode;
}

namespace xml
{

tinyxml2::XMLDocument& get_document(tinyxml2::XMLNode* parent);

tinyxml2::XMLElement* update_element(tinyxml2::XMLNode* parent, const char* name);
// Same thing as above, but takes &parent instead of *parent
tinyxml2::XMLElement* update_element(tinyxml2::XMLNode& parent, const char* name);

tinyxml2::XMLElement* update_element_delete_contents(tinyxml2::XMLNode* parent, const char* name);

tinyxml2::XMLElement* update_tag(tinyxml2::XMLNode* parent, const char* name, const char* value);
tinyxml2::XMLElement* update_tag(tinyxml2::XMLNode* parent, const char* name, const int value);

tinyxml2::XMLDeclaration* update_declaration(tinyxml2::XMLDocument& doc);

tinyxml2::XMLComment* update_comment(tinyxml2::XMLNode* parent, const char* text);

} // namespace xml


// XMLHandle doc, XMLElement* elem
#define FOR_EACH_XML_ELEMENT(doc, elem) \
    for ( \
        elem = doc \
            .FirstChildElement() \
            .FirstChildElement() \
            .ToElement(); \
        elem != NULL; \
        elem = elem->NextSiblingElement() \
    )

// XMLElement* elem, XMLElement* subelem
#define FOR_EACH_XML_SUB_ELEMENT(elem, subelem) \
    for ( \
        subelem = elem->FirstChildElement(); \
        subelem != NULL; \
        subelem = subelem->NextSiblingElement() \
    )

// XMLElement* elem, const char* expect
#define EXPECT_ELEM(elem, expect) \
    if (SDL_strcmp(elem->Value(), expect) != 0) \
    { \
        continue; \
    } \
    do { } while (false)