grit/testdata/script.html

<script>
function run(n,cut){
	var out = "", str = "abcdefghijklmnopqrstuvwxyz 1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ,./:;'\"()*!?-_@[]{}#%`+=|\\>";
	n.innerHTML = 'aa';

	var base = n.scrollWidth;
	for(var i=0;i<str.length;i++) {
		n.innerHTML = 'a'+str.charAt(i)+'a';
		out += str.charAt(i) + (n.scrollWidth-base) +";";

		if(cut && !i && (n.scrollWidth-base == cut)) {
			return '\x02'+"0;";
		}
	}
	// extra cases for literals
	n.innerHTML = 'a&lt;a';
	out += '<' + (n.scrollWidth-base) +";";
	n.innerHTML = 'a&amp;a';
	out += '&' + (n.scrollWidth-base) +";";
	
	var base_height = n.scrollHeight;
	n.innerHTML += '<br>a';
	out += '\x01' + (n.scrollHeight-base_height) +";";
	
	return out;
}

function TEST_WIDTH() {
	var n = document.getElementById('test');
	var out = run(n[$~CUT~$]);
	if (out.length>4){	
		n.style.fontWeight='bold';
		out += run(n);
	}
	n.outerHTML = "";
	(new Image()).src="[$~SETWIDTH~$]?src=[COMPONENT]&data="+escape(out).replace(/\+/g,"%2B");
}
</script>