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Re: URI and IRI Templating (What did I get myself into?)

From: James M Snell <jasnell@gmail.com>
Date: Wed, 27 Dec 2006 11:49:07 -0800
Message-ID: <4592CE33.9030302@gmail.com>
To: Joe Gregorio <joe@bitworking.org>
CC: Mark Nottingham <mnot@mnot.net>, uri@w3.org

Ugh. I'd rather we not go down the path of embedding encoding
information into the template.  Let's just pick a reasonable default and
leave it at that.

Extensions that affect the selection and validation of the replacement
value are fine.

- James

Joe Gregorio wrote:
> [snip]
> Allow a ':' at the end of a variable name to separate out options, and then
> add an option 'enc=<enc>'  where
> 'enc' could be:
> 
> enc="strict"
>   All characters outside (iprivate | iunreserved) are % encoded
> 
> enc="sub"
>   Characters outside (iprivate | iunreserved | sub-delims) are % encoded
> 
> enc="none"
>   No characters are % encoded
> 
> enc="default"
>   Or if '=<enc>' isn't provided then the default encoding is used:
> 
>   Characters outside ( iprivate | iunreserved | '@' | ':' | '/' ) are
> % encoded.
> 
> So back to the example, if we have:
> 
>    http://bitworking.org/{path:enc=strict}
> 
> and
> 
>  path = "projects/httplib2/"
> 
> then that gets interpreted as:
> 
>  http://bitworking.org/projects%2Fhttplib2%2F
> 
> and
> 
>    http://bitworking.org/{path:enc=default}
> 
> gets interpreted as:
> 
>  http://bitworking.org/projects/httplib2/
> 
> Note that
> 
>    http://bitworking.org/{path:enc=default}
> 
> and
> 
>    http://bitworking.org/{path}
> 
> will give equivalent values.
> 
> Again, with this I worry about complexity and surprising behavior:
> 
>    http://example.org?a={b:enc=strict}
>    b = "a=test"
> 
> gives:
> 
>   http://example.org?a=a%3Dtest
> 
> while
> 
>   http://example.org{b:enc=none}
>   b = "?a=test"
> 
> gives:
> 
>   http://example.org?a=test
> 
>   -joe
> 
Received on Wednesday, 27 December 2006 19:49:19 GMT

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