HTML Format

gistfile1.js

function HTML_format(original_HTML){
	var o = original_HTML,
	    match;      
       
  o = o.replace(/<div><\/div>/g,'')
  // todo: replace div block inside div block, now we only deal with one-layer nesting
  // method: a,b find bs see if the one before is a, if it is. eliminate them both

  o = o.replace(/^(<div>)+/g,'');
  
  o = o.replace(/(<\/div>)+$/g,'');    
  
 
  
	match = /(<\/?div>)+<(ol|ul|sup|img|blockquote)>|<\/(ol|ul|sup|img|blockquote)>(<\/?div>)+/g.exec(o);
	while(match){
		if(match[1]){
			o = o.replace(match[0], '<' + match[2] + '>');
		}else{
			o = o.replace(match[0], '</' + match[3] + '>');
		}
		match = /(<\/?div>)+<(ol|ul|sup)>|<\/(ol|ul|sup)>(<\/?div>)+/g.exec(o);
	}
  // http://stackoverflow.com/questions/4724701/regexp-exec-returns-null-sporadically
  
  o = o.replace(/(<br>)?(<\/?div>)+/g,'<br>');
  // get things done
  
  o = o.replace(/<\/sup><sup>/g,'<br>');
  
	return o;
}