[PW-dev] XML configuration

[James G S. <JG...@TA...>]

I finally got XML::Parser to not dump core on me, so now I can 
continue testing/developing in a mod_perl env. (solution: make 
Apache use the system expat lib instead of its own).

Basically, I've gotten the XML configuration to the point where 
the following is possible:

<configuration>
  <classes>
    <map>
      <citys>
        <hash>
          <a>Albuquerque</a>
          <b>Belen</b>
          <c>Chama</c>
          <e>Elephant Butte</e>
          <f>Farmington</f>
        </hash>
      </citys>
      <city>Albuquerque</city>
      <interstate>
        10
        <values>
          <hash>
            <10>Interstate 10</10>
            <25>Interstate 25</25>
            <40>Interstate 40</40>
          </hash>
        </values>
      </interstate>
    </map>
  </classes>
  <widgets>
    <title>Page title</title>
  </widgets>
</configuration>

Defines a class called 'map' which defines the values for two 
widgets named 'city' and 'interstate'.  One widget with the name 
'title' is configured with a value of 'Page title'.

I'm still trying to think about how to do plurals from singular 
forms (value -> values).  This means that the 'city' tag 
designates the default value for the widget of that name while 
'citys' or 'cities' (hopefully) will designate the set of valid 
values.  'value' and 'values' are still valid tags.

Anyone want anything in an XML configuration that isn't here?  
Possibilities include code to validate widget values:

<configuration>
  <classes>
    <date>
      <class id="month">
        <validate>
          <[CODE
if($value > 0 && $value < 13) { return $value; }
return 0;
          ]>
        </validate>
      <class>
    </date>
  </classes>
</configuration>

I haven't even thought about how to work that into the code yet.
--
James Smith <JG...@TA...>, 979-862-3725
Texas A&M CIS Operating Systems Group, Unix