[dsdl-comment] validate options in NVRL

 <define name="option">
    <element name="option">
      <attribute name="name">
        <data type="anyURI"/>
      </attribute>
      <optional>
        <attribute name="arg"/>
      </optional>
      <optional>

Which is great for Java based validators which have parameters of this
form (a URI).

Question.
1. Can I use something like xsv (http://www.ltg.ed.ac.uk/~ht/xsv-status.html)
or
rxp
 rxp --help
usage: rxp [-abeiImnNRsStvVx] [-o b|0|1|2|3|i|d] [-U 0|1|2] [-c
encoding] [-D name sysid] [-u base_uri] [url]

I.e. a command line application, written in C, which takes command
line arguments of the form -arg value

2. Why is the name attribute of type anyURI?
-c isn't valid for 'anyURI' AFAIK, yet is good for some (many) validators?

3. For implementations, how do I 'add' a validator that it currently
doesn't know about?

regards

-- 
Dave Pawson
XSLT XSL-FO FAQ.
http://www.dpawson.co.uk
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