[Schematron] Help sought: implementation of Character Repertoire in XSLT2 for embedding in schematron

[Dave Pawson]

I may be a mile off. If so please tell me.


2008/9/22 Rick Jelliffe <rjelliffe at allette.com.au>:

> I should generate something like
>  <rule context="x//text()">
>         <assert test="matches(., $theRegex) )">


crdl talks about (at the top level)
in, not-in, unknown.

So shouldn't the assertion be one of those?
The simplest being
<assert test="in (. , $repertoire-reference)">

Surely that's what the user wants to know?
Everything else should be below the water level, so to speak.



> I guess the best approach for Schematron reporting would be
>  0) test each text() node individually
>  1) generate separate assertions where possible, so for better error
> reporting granularity. In particular, for top-level intersections, and
> for top-level three-level logic.
>  2) convert regexes to use XPath logic as much as possible, to reduce
> the size of each particular compiled regex
>  3) after that, use the closest regex possible, with a
> no-spurious-negatives policy for assertions
>
> I wonder if there is a way to use tokenize() to actually locate problem
> characters? Hmmm...


If (as David keeps asserting - and I believe him) the actual tests are done
one by one, say with a recursive function, then the character will be
available.... just that how do you return multiple values (false, \u1224) from
a function?

regards




-- 
Dave Pawson
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