public View GetProperty(string propertyName, bool createImplicitly = true)
{
// this falls back to case insensitive matches if th property didn't exist.
if (propertyName.Contains('.'))
{
return(GetChild(propertyName, createImplicitly)); // let that unroll the path.to.property
}
propertyName = ResolveAlias(propertyName);
if (propertyName.StartsWith("::"))
{
return(RootView.GetChild(propertyName.Trim(':'), createImplicitly));
}
if (map.ContainsKey(propertyName))
{
return(map[propertyName]);
}
// cheat: let's see if there is a case insensitive version:
var result = (map.Keys.Where(each => each.Equals(propertyName, StringComparison.InvariantCultureIgnoreCase)).Select(i => map[i])).FirstOrDefault();
if (result != null)
{
return(result);
}
// let's add a placeholder node for it then.
return(createImplicitly? CreatePlaceholderView(propertyName) : null);
}
internal View GetChild(Selector selector, bool createImplicity, Func <string, string> lastMinuteReplacementFunction, HashSet <string> history)
{
if (selector == null || selector.IsEmpty)
{
return(this);
}
if (string.IsNullOrEmpty(selector.Name) && selector.Parameter != null)
{
selector = new Selector("*", selector.Parameter, selector.SourceLocation, selector.AfterTheParameter);
}
selector = ResolveAlias(selector, history);
if (selector.IsGlobal)
{
return(RootView.GetChild(selector.DeGlobaled, createImplicity, lastMinuteReplacementFunction, history));
}
if (selector.AfterTheParameter.Is())
{
return(GetChild(selector.WithoutAfterTheParameter, createImplicity, lastMinuteReplacementFunction, history).GetChild(selector.AfterSelector, createImplicity, lastMinuteReplacementFunction, history));
}
if (selector.IsCompound)
{
var name = selector.Prefix.Name;
var resolved = ResolveAlias(name, history);
if (resolved != name && resolved.IndexOfAny(new char[] { '.', '[', ']', ':' }) > -1)
{
var result = GetProperty(resolved, createImplicity, lastMinuteReplacementFunction, history);
if (result != null)
{
return(result.GetChild(selector.Suffix, createImplicity, lastMinuteReplacementFunction, history));
}
return(null);
}
return(HasChild(name) ? GetProperty(name, createImplicity, lastMinuteReplacementFunction, history).GetChild(selector.Suffix, createImplicity, lastMinuteReplacementFunction, history) : (createImplicity ? CreatePlaceholderView(name).GetChild(selector.Suffix, createImplicity, lastMinuteReplacementFunction, history) : null));
}
if (selector.IsSpecialCase)
{
// this ensures a special case where a selector is resolving, but it has an empty auto-condition in it.
// this should make sure that '*[].foo' is the same thing as 'foo'
return(GetChild(selector.AfterSelector, createImplicity, lastMinuteReplacementFunction, history));
}
if (selector.HasParameter)
{
return(HasChild(selector.Name) ? GetProperty(selector.Name, createImplicity, lastMinuteReplacementFunction, history).GetElement(selector.Parameter, lastMinuteReplacementFunction) : (createImplicity ? CreatePlaceholderView(selector.Name).GetElement(selector.Parameter, lastMinuteReplacementFunction) : null));
}
return(GetProperty(selector.Name, createImplicity, lastMinuteReplacementFunction, history));
}
internal View GetChild(Selector selector, bool createImplicity = true)
{
if (selector == null || selector.IsEmpty)
{
return(this);
}
if (string.IsNullOrEmpty(selector.Name) && selector.Parameter != null)
{
selector = new Selector("*", selector.Parameter, selector.SourceLocation, selector.AfterTheParameter);
}
selector = ResolveAlias(selector);
if (selector.IsGlobal)
{
return(RootView.GetChild(selector.DeGlobaled, createImplicity));
}
if (selector.AfterTheParameter.Is())
{
return(GetChild(selector.WithoutAfterTheParameter, createImplicity).GetChild(selector.AfterSelector, createImplicity));
}
if (selector.IsCompound)
{
var name = selector.Prefix.Name;
return(HasChild(name) ? GetProperty(name, createImplicity).GetChild(selector.Suffix, createImplicity) : (createImplicity ? CreatePlaceholderView(name).GetChild(selector.Suffix, createImplicity) : null));
}
if (selector.IsSpecialCase)
{
// this ensures a special case where a selector is resolving, but it has an empty auto-condition in it.
// this should make sure that '*[].foo' is the same thing as 'foo'
return(GetChild(selector.AfterSelector, createImplicity));
}
if (selector.HasParameter)
{
return(HasChild(selector.Name) ? GetProperty(selector.Name, createImplicity).GetElement(selector.Parameter) : (createImplicity ? CreatePlaceholderView(selector.Name).GetElement(selector.Parameter) : null));
}
return(GetProperty(selector.Name, createImplicity));
}
public View GetProperty(string propertyName, bool createImplicitly = true, Func <string, string> lastMinuteReplacementFunction = null, HashSet <string> history = null)
{
history = history ?? new HashSet <string>();
if (lastMinuteReplacementFunction != null)
{
propertyName = lastMinuteReplacementFunction(propertyName);
}
// if we have a dot, we have to navigate first
if (propertyName.Contains('.'))
{
return(GetChild(propertyName, createImplicitly, lastMinuteReplacementFunction, history)); // let that unroll the path.to.property
}
propertyName = ResolveAlias(propertyName, history);
// if we got a new name from an alias, we'd better check to see if we're still supposed to be here.
if (propertyName.StartsWith("::"))
{
return(RootView.GetChild(propertyName.Trim(':'), createImplicitly, lastMinuteReplacementFunction, history));
}
if (propertyName.Contains('.'))
{
return(GetChild(propertyName, createImplicitly, lastMinuteReplacementFunction, history)); // let that unroll the path.to.property
}
if (map.ContainsKey(propertyName))
{
return(map[propertyName]);
}
// cheat: let's see if there is a case insensitive version:
// var result = (map.Keys.Where(each => each.Equals(propertyName, StringComparison.InvariantCultureIgnoreCase)).Select(i => map[i])).FirstOrDefault();
// if (result != null) {
// return result;
// }
// let's add a placeholder node for it then.
return(createImplicitly? CreatePlaceholderView(propertyName) : null);
}