gugdun
/
tinyxml2
réplica de https://github.com/leethomason/tinyxml2


			
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							//	g++ -Wall -O2 contrib/html5-printer.cpp -o html5-printer -ltinyxml2

//	This program demonstrates how to use "tinyxml2" to generate conformant HTML5
//	by deriving from the "tinyxml2::XMLPrinter" class.

//	http://dev.w3.org/html5/markup/syntax.html

//	In HTML5, there are 16 so-called "void" elements.  "void elements" NEVER have
//	inner content (but they MAY have attributes), and are assumed to be self-closing.
//	An example of a self-closig HTML5 element is "<br/>" (line break)
//	All other elements are called "non-void" and MUST never self-close.
//	Examples: "<div class='lolcats'></div>".

//	tinyxml2::XMLPrinter will emit _ALL_ XML elements with no inner content as
//	self-closing.  This behavior produces space-effeceint XML, but incorrect HTML5.

//	Author: Dennis Jenkins,  dennis (dot) jenkins (dot) 75 (at) gmail (dot) com.
//	License: Same as tinyxml2 (zlib)
//		This example is a small contribution to the world!  Enjoy it!


#include <tinyxml2.h>
#include <iostream>

#if defined (_MSC_VER)
#define strcasecmp stricmp
#endif

using namespace tinyxml2;

// Contrived input containing a mix of void and non-void HTML5 elements.
// When printed via XMLPrinter, some non-void elements will self-close (not valid HTML5).
static const char input[] =
"<html><body><p style='a'></p><br/>&copy;<col a='1' b='2'/><div a='1'></div></body></html>";

// XMLPrinterHTML5 is small enough, just put the entire implementation inline.
class	XMLPrinterHTML5 : public XMLPrinter
{
public:
	XMLPrinterHTML5 (FILE* file=0, bool compact = false, int depth = 0) :
		XMLPrinter (file, compact, depth)
	{}

protected:
	virtual void CloseElement () {
		if (_elementJustOpened && !isVoidElement (_stack.PeekTop())) {
			SealElement();
		}
		XMLPrinter::CloseElement();
	}

	virtual bool isVoidElement (const char *name) {
// Complete list of all HTML5 "void elements",
// http://dev.w3.org/html5/markup/syntax.html
		static const char *list[] = {
			"area", "base", "br", "col", "command", "embed", "hr", "img",
			"input", "keygen", "link", "meta", "param", "source", "track", "wbr",
			NULL
		};

// I could use 'bsearch', but I don't have MSVC to test on (it would work with gcc/libc).
		for (const char **p = list; *p; ++p) {
			if (!strcasecmp (name, *p)) {
				return true;
			}
		}

		return false;
	}
};

int	main (void) {
	XMLDocument doc (false);
	doc.Parse (input);

	std::cout << "INPUT:\n" << input << "\n\n";

	XMLPrinter prn (NULL, true);
	doc.Print (&prn);
	std::cout << "XMLPrinter (not valid HTML5):\n" << prn.CStr() << "\n\n";

	XMLPrinterHTML5 html5 (NULL, true);
	doc.Print (&html5);
	std::cout << "XMLPrinterHTML5:\n" << html5.CStr() << "\n";

	return 0;
}