JSON for OpenLaszlo is a JSON library for OpenLaszlo.

I wrote this in order to implement my regular expression visualizer.

There’s a live example below. Clicking on a button requests some JSON text from the server and parses it on the client. The source code to the example is here.

<param name="movie" value=http://osteele.com/sources/openlaszlo/json/json-example.swf"/> <embed src=http://osteele.com/sources/openlaszlo/json/json-example.swf" width="300" height="300" quality="high" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer"/>

(When it runs off my web site, the debugger in the example displays a warning about not being able to connect to the LPS server. This means that the debugger can’t evaluate expressions, as it could if you were running it off the SDK. I’m just using the debugger here to print inspectable representations of the JSON parse results, and the warning doesn’t affect this.)


OpenLaszlo implements most of JavaScript 1.5 (ECMAScript 3), but it’s missing regular expressions and throw/catch, so it can’t run JSON in JavaScript. And the OpenLaszlo compiler doesn’t (yet) implement the proposed JavaScript 2.0 (ECMAScript 4) extensions such as class and type declarations, so JSON in ActionScript doesn’t work either. Hence, this implementation, which doesn’t require either regular expressions or JavaScript 2.0 extensions.

It’s open source, of course. (MIT License.)