blog.jj5.net (2003 to 2005)

Complacent..? Who? Me?

Fri Apr 22 20:08:00 UTC+1000 2005

Categories:

Programming

You're kidding, right Stuart? :)

It's 6am.

I'm watching the effects of FUCKED STRINGS (well, probably not... I think it's worse than that...)

I've been playing with a reg exp parser that will validate based upon %uXXXX values.

But, then, I discovered I don't actually know anything about it...

So I thought I'd see what would happen if I wrote this [1].

Woohoo! It just finished as I was typing this message.

Going now.

[1]

<!doctype html
public "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<head>

function RunTest() {

var inputTextBox = document.getElementById( "inputTextBox" );
var expressionTextBox = document.getElementById( "expressionTextBox" );

var escapedInputTextBox = document.getElementById( "escapedInputTextBox" );

var input = inputTextBox.value;
var expression = expressionTextBox.value;

WriteLine( input );
WriteLine( expression );

var escapedInput = escape( input );

escapedInputTextBox.value = escapedInput;

//WriteUnicodeRange( 256, 512 );

//WriteUnicodeRange( 65536-256, 65536 );

WriteUnicodeRange( 256, 65536 );

}

function WriteUnicodeRange( start, end ) {

var table = "<table>";

for ( var i = start; i < end; i++ ) {

var hex = i.toString( 16 ).toUpperCase();

while ( hex.length < 4 ) {

hex = "0" + hex;

}

var escaped = "%u" + hex;

try {

table += "<tr><td>" + hex + "</td><td>" + "&#x" + hex + ";</td><td>" + unescape( escaped ) + "</td></tr>";

}
catch ( ex ) {

table += "<tr><td>" + hex + "</td><td colspan=\"2\"><font color=\"red\">" + ex + "</font></td></tr>";

}

//if ( ( i % 50 ) == 0 ) { WriteLine(); }

}

table += "</table>";

Write( table );

}

var output;

function Write( str ) {

if ( output == null ) { output = document.getElementById( "output" ); }

output.innerHTML += str;

}

function WriteLine( line ) {

if ( line == null ) { line = ""; }

Write( line + "<br />" );

}

</script>

</head>

<body>

<form>

</form>

</body>
</html>