unzip strings in javascript

Question

anyone knows a simple JS library implementing the UNZIP algorithm? No disk-file access, only zip and unzip a string of values. there are ActiveX, using WinZIP and other client dependent software for ZIP, written in JS.

but no pure algorithm implementation, is it really difficult or non-functional?

i would use it for displaying KMZ files in a HTML page with the GMap object (google maps). The KMZ file is just a zipped KML file. I want to unzip a KMZ file and feed the KML to GMap.

Answer 1

Perhaps ZipReader from Mozilla can be used for what you are after.

https://developer.mozilla.org/en/nsIZipReader

Answer 2

DotNetZip has a COM interface, that can be accessed from Javascript. It has a stream-to-stream unzip capability, but I have never tried using that from Javascript.
Also I have never tried using the library in any way from within IE.

Answer 3

No need to unzip the KMZ file as Google Maps absolutely understands it. You can check it, simply search for the URL where your KMZ file is located in the Google Maps web interface and it will show its content on the map.

Here is a demo.

Answer 4

kthoom implements unzip on a binary string: http://kthoom.googlecode.com/