C++ Replacing HTML Character Entities

[jmhobbs]

Hello, this is my first post on this forum, hope it works out

I'm trying to do HTML entity decoding in C++, couldn't find any existing text out there to help out. Hows this look? It works on a small scale, but with lots of text it tends to stumble, even lock some times. Any ideas on performance here, or what I might be doing wrong?

Thanks in advance!

string htmlEntitiesDecode (string str) {

	string subs[] = {
		""", """,
		"'", "'",
		"&", "&",
		"<", "&lt;",
		">", "&gt;"
	};
	
	string reps[] = {
		"\"", "\"",
		"'", "'",
		"&", "&",
		"<", "<",
		">", ">"
	};
	
	size_t found;
	for(int j = 0; j <= 10; j++) {
		do {
			found = str.rfind(subs[j]);
	  	if (found != string::npos)
    		str.replace (found,subs[j].length(),reps[j]);
    } while (found != string::npos);
  }
  return str;
}