Comments on: Evaluating Script Tags Dynamically http://scriptnode.com/article/evaluating-script-tags-dynamically/ Tips and tricks for web developers. Sun, 18 Jul 2010 10:29:51 -0700 http://wordpress.org/?v=2.8.4 hourly 1 By: Matt Hackett http://scriptnode.com/article/evaluating-script-tags-dynamically/comment-page-1/#comment-205 Matt Hackett Mon, 22 Sep 2008 17:55:45 +0000 http://scriptnode.com/?p=142#comment-205 @Isaac: Licking my chops again! I probably should have read how some libraries do this, but I wanted to do it myself from scratch. Thanks for catching that bug. @fearphage: Not sure what you mean... @Isaac: Licking my chops again! I probably should have read how some libraries do this, but I wanted to do it myself from scratch. Thanks for catching that bug.

@fearphage: Not sure what you mean…

]]> By: fearphage http://scriptnode.com/article/evaluating-script-tags-dynamically/comment-page-1/#comment-204 fearphage Mon, 22 Sep 2008 09:29:39 +0000 http://scriptnode.com/?p=142#comment-204 FYI: If you wrap your script nodes in <![CDATA[ & ]]> tags, you can write <script> and <\/script> all day long FYI: If you wrap your script nodes in <![CDATA[ & ]]> tags, you can write <script> and <\/script> all day long

]]> By: fearphage http://scriptnode.com/article/evaluating-script-tags-dynamically/comment-page-1/#comment-203 fearphage Mon, 22 Sep 2008 09:28:12 +0000 http://scriptnode.com/?p=142#comment-203 FYI: If you wrap your script nodes in tags, you can write and all day long FYI: If you wrap your script nodes in tags, you can write and all day long

]]> By: Isaac Z. Schlueter http://scriptnode.com/article/evaluating-script-tags-dynamically/comment-page-1/#comment-198 Isaac Z. Schlueter Sun, 21 Sep 2008 17:52:31 +0000 http://scriptnode.com/?p=142#comment-198 Whoops, it borked the script sample in the comment. Here you go: http://foohack.com/tests/evalhtml.js Whoops, it borked the script sample in the comment.

Here you go: http://foohack.com/tests/evalhtml.js

]]> By: Isaac Z. Schlueter http://scriptnode.com/article/evaluating-script-tags-dynamically/comment-page-1/#comment-197 Isaac Z. Schlueter Sun, 21 Sep 2008 17:50:34 +0000 http://scriptnode.com/?p=142#comment-197 This bit: ([^<]*) will fall down on stuff like this: if (3 < 2) alert("number line fail!"); To get around that, you can use a chomping algorithm that cuts off just the bits you need, and evals them as you go. <code> var evalHTML = function (content) { alert("YOURE DOING IT WRONG!!"); var split = content.split(/<script/); split.shift(); // throw away anything before the first script tag for ( var i = 0, l = split.length; i ...</script>...' piece = piece.split(/>/); piece.shift(); // throw it away the 'type="text/javascript"' var ex; try { eval(piece.join('>').split('</script>').shift()); } catch (ex) {} } return "I hope you're ashamed of yourself."; }; </code> This bit: ([^<]*) will fall down on stuff like this:

if (3 < 2) alert(”number line fail!”);

To get around that, you can use a chomping algorithm that cuts off just the bits you need, and evals them as you go.

var evalHTML = function (content) {
alert("YOURE DOING IT WRONG!!");
var split = content.split(/<script/);
split.shift(); // throw away anything before the first script tag
for ( var i = 0, l = split.length; i ...</script>...'
piece = piece.split(/>/);
piece.shift(); // throw it away the 'type="text/javascript"'
var ex;
try {
eval(piece.join('>').split('</script>').shift());
} catch (ex) {}
}
return "I hope you're ashamed of yourself.";
};

]]>