private XMLResult ExecCall(XElement xElem, XMLContext context)
{
var name = (String)xElem.Attribute("name");
var result = (String)xElem.Attribute("result");
var @params = new XMLContext(_globalContext);
foreach (var paramXElem in xElem.Elements("param"))
{
var paramName = (String)paramXElem.Attribute("name");
var paramValue = CreateVarValue(paramXElem, context);
@params.SetValue(paramName, paramValue);
}
XElement methodXElem;
if (!_methods.TryGetValue(name, out methodXElem))
{
throw new Exception();
}
var xmlReturn = ExecContent(methodXElem, @params) as XMLReturn;
if (!String.IsNullOrWhiteSpace(result))
{
if (xmlReturn != null)
{
context.SetValue(result, xmlReturn.Value);
}
}
return(null);
}
private XMLResult ExecSet(XElement xElem, XMLContext context)
{
var name = (String)xElem.Attribute("name");
if (String.IsNullOrWhiteSpace(name))
{
throw new Exception();
}
var value = (String)xElem.Attribute("value");
var varVal = (Object)null;
if (!String.IsNullOrWhiteSpace(value))
{
varVal = EvalObj(value, context);
}
else
{
var type = (String)xElem.Attribute("type");
if (type == "list")
{
varVal = new ArrayList();
}
}
context.SetValue(name, varVal);
return(null);
}
private XMLResult ExecFor(XElement xElem, XMLContext context)
{
var @var = (String)xElem.Attribute("var");
var start = (String)xElem.Attribute("start");
var end = (String)xElem.Attribute("end");
var step = (String)xElem.Attribute("step");
if (String.IsNullOrWhiteSpace(@var))
{
throw new Exception();
}
var startVal = Convert.ToString(EvalObj(start, context));
var endVal = Convert.ToString(EvalObj(end, context));
var stepVal = Convert.ToString(EvalObj(step, context));
double startDbl;
if (!double.TryParse(startVal, NumberStyles.Any, NumberFormatInfo.CurrentInfo, out startDbl))
{
throw new Exception();
}
double endDbl;
if (!double.TryParse(endVal, NumberStyles.Any, NumberFormatInfo.CurrentInfo, out endDbl))
{
throw new Exception();
}
double stepDbl;
if (!double.TryParse(stepVal, NumberStyles.Any, NumberFormatInfo.CurrentInfo, out stepDbl))
{
stepDbl = 1D;
}
var subContent = new XMLContext(context);
for (double i = startDbl; i < endDbl; i += stepDbl)
{
subContent.SetValue(@var, i);
var xmlResult = ExecContent(xElem, subContent);
if (ReferenceEquals(xmlResult, XMLBreak.Value))
{
break;
}
if (xmlResult != null)
{
return(xmlResult);
}
}
subContent.Clear();
return(null);
}
private XMLResult ExecForEach(XElement xElem, XMLContext context)
{
var @var = (String)xElem.Attribute("var");
if (String.IsNullOrWhiteSpace(@var))
{
throw new Exception();
}
var items = (String)xElem.Attribute("items");
if (String.IsNullOrWhiteSpace(items))
{
throw new Exception();
}
var list = EvalObj(items, context) as IEnumerable;
if (list == null)
{
throw new Exception();
}
var subContent = new XMLContext(context);
foreach (var item in items)
{
subContent.SetValue(@var, item);
var xmlResult = ExecContent(xElem, subContent);
if (ReferenceEquals(xmlResult, XMLBreak.Value))
{
break;
}
if (xmlResult != null)
{
return(xmlResult);
}
}
subContent.Clear();
return(null);
}
public Object Exec(IDictionary <String, Object> context)
{
if (context != null)
{
foreach (var pair in context)
{
_globalContext.SetValue(pair.Key, pair.Value);
}
}
var xmlReturn = ExecContent(_rootXElem, _globalContext) as XMLReturn;
if (xmlReturn != null)
{
return(xmlReturn.Value);
}
return(null);
}