Untitled

#include <iostream>
#include <cassert>
#include <gumbo.h>

int main()
{
    // Result is the same if there is no doctype, or if some of the nodes are missing

    const char *data = "<!DOCTYPE html>\n<html>\n<head>\n</head>\n<body>\n</body>\n</html>";
    GumboOutput *output = gumbo_parse(data);


    // Following is just getting to the problematic node:

    assert(output->root->type == GUMBO_NODE_ELEMENT);
    const GumboElement &htmlNode = output->root->v.element;
    assert(htmlNode.tag == GUMBO_TAG_HTML);
    std::cout << "Root element is HTML and has " << htmlNode.children.length << " children" << std::endl;

    assert(htmlNode.children.length > 2);
    GumboNode *bodyNodeCont = static_cast<GumboNode*>(htmlNode.children.data[2]);
    assert(bodyNodeCont->type == GUMBO_NODE_ELEMENT);
    const GumboElement &bodyNode = bodyNodeCont->v.element;
    assert(bodyNode.tag == GUMBO_TAG_BODY);
    std::cout << "3rd of them is BODY which has " << bodyNode.children.length << " children" << std::endl;

    assert(bodyNode.children.length > 0);
    GumboNode *whitespaceCont = static_cast<GumboNode*>(bodyNode.children.data[0]);
    assert(whitespaceCont->type == GUMBO_NODE_WHITESPACE);
    const GumboText &whitespace = whitespaceCont->v.text;


    // ...and now the problem itself:

    std::cout << "1st of them is WHITESPACE which looks like this: \""
              << whitespace.text << "\", and original is "
              << whitespace.original_text.length << " bytes long and looks like this: \""
              << std::string(whitespace.original_text.data, whitespace.original_text.length)
              << "\"" << std::endl;

    return 0;
}