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   Re: [xml-dev] RELAX NG pluggable type libraries

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Elliotte Harold wrote:
> OK, I've done it now, but is that really the minimum? So far it seems I 
> also need to:
> 1. Compute hash codes for the strings
> 2. Buffer the strings from streams, or write code that validates the 
> streams directly
> 3. Write a factory that finds the right library
> 4. Write the library that creates the right data types
> 5. Install the factory (Still haven't figured out how to do that one)
> 6. Provide an object representation of the type
> It's doable, but it's a little more complex than I expected, even for 
> simple cases. I thought I could get away with just writing a method that 
> took a string and returned true or false, but there appears to be a lot 
> more to it.

Is there any chance that when done you would document the process one 
needs to go through? The SVG WG is putting the final touches to the SVG 
1.2 RNG, and as a further step beyond that would be to create a type 
library that would be able to understand SVG's types in order to get 
much closer to a complete SVG validator comparable to the HTML and CSS 
validators that the W3C makes available.

Robin Berjon


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