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Re: String to ArrayBuffer

From: Charles Pritchard <chuck@jumis.com>
Date: Wed, 11 Jan 2012 15:05:03 -0800
Message-ID: <4F0E159F.7020309@jumis.com>
To: James Robinson <jamesr@google.com>
CC: Webapps WG <public-webapps@w3.org>
On 1/11/2012 2:49 PM, James Robinson wrote:
>
>
> On Wed, Jan 11, 2012 at 2:45 PM, Charles Pritchard <chuck@jumis.com 
> <mailto:chuck@jumis.com>> wrote:
>
>     Currently, we can asynchronously use BlobBuilder with FileReader
>     to get an array buffer from a string.
>     We can of course, use code to convert String.fromCharCode into a
>     Uint8Array, but it's ugly.
>
>     The StringEncoding proposal seems a bit much for most web use:
>     http://wiki.whatwg.org/wiki/StringEncoding
>
>     All we really ever do is work on DOMString, and that's covered by
>     UTF8.
>
>
> DOMString is not UTF8 or necessarily unicode.  It's a sequence of 16 
> bit integers and a length.
>

To clarify, I'd want ArrayBuffer(DOMString) to work with unicode and 
throw an error if the DOMString is not valid unicode.
This is consistent with other Web Apps APIs.

For feature detection, the method should be wrapped in a try-catch block 
anyway.

-Charles
Received on Wednesday, 11 January 2012 23:05:32 GMT

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