//
// Create a rule from an element
//
static CapabilitiesRule RuleFromElement(ParseState parseState, XmlNode element)
{
int ruletype;
DelayedRegex regex;
CapabilitiesPattern pat;
// grab tag name
if (element.Name == "filter")
{
ruletype = CapabilitiesRule.Filter;
}
else if (element.Name == "case")
{
ruletype = CapabilitiesRule.Case;
}
else if (element.Name == "use")
{
HandlerBase.CheckForNonCommentChildNodes(element);
string var = HandlerBase.RemoveRequiredAttribute(element, "var");
string strAs = HandlerBase.RemoveAttribute(element, "as");
HandlerBase.CheckForUnrecognizedAttributes(element);
if (strAs == null)
{
strAs = String.Empty;
}
parseState.Evaluator.AddDependency(var);
return(new CapabilitiesUse(var, strAs));
}
else
{
throw new ConfigurationErrorsException(
SR.GetString(SR.Unknown_tag_in_caps_config, element.Name),
element);
}
// grab attributes
String matchpat = HandlerBase.RemoveAttribute(element, "match");
String testpat = HandlerBase.RemoveAttribute(element, "with");
HandlerBase.CheckForUnrecognizedAttributes(element);
if (matchpat == null)
{
if (testpat != null)
{
throw new ConfigurationErrorsException(SR.GetString(SR.Cannot_specify_test_without_match), element);
}
regex = null;
pat = null;
}
else
{
try {
regex = new DelayedRegex(matchpat);
}
catch (Exception e) {
throw new ConfigurationErrorsException(e.Message, e, element);
}
if (testpat == null)
{
pat = CapabilitiesPattern.Default;
}
else
{
pat = new CapabilitiesPattern(testpat);
}
}
// grab contents
ArrayList subrules = RuleListFromElement(parseState, element, false);
return(new CapabilitiesSection(ruletype, regex, pat, subrules));
}