public string EvaluateProperty(string expression)
{
var locator = new Models.PropertyLocator(expression, Model, LoopStack);
if (locator.Locate() == true)
{
var mp = locator.LocatedProperty();
if (expression.EndsWith("$"))
{
return(mp.Name);
}
var result = mp.GetText();
// replace backslash-quote by quote
result = result.Replace("\\\"", "\"");
// replace double backslash by a single backslash
result = result.Replace("\\\\", "\\");
// combination of the two properly replaces 3 backslashes and a quote by a backslash and a quote
return(result);
}
else
{
throw new ApplicationException(string.Format("Could not evaluate expression {0}", expression));
}
}
public void EnterLoop(string expression)
{
var iterator = new IteratorManager(new Models.Iterator());
logger.Trace("Enter loop: " + expression);
iterator.Path = expression;
var locator = new Models.PropertyLocator(expression, Model, LoopStack);
if (locator.Locate() == false)
{
throw new ApplicationException(string.Format("Could not understand this loop expression {0}", expression));
}
iterator.Root = locator.LocatedProperty();
LoopStack.Push(iterator);
}
public bool PropertyExists(string expression)
{
var locator = new Models.PropertyLocator(expression, Model, LoopStack);
return(locator.Locate());
}
