/// <summary>
/// Removes the prefix according to the StartRemove and EndRemove values
/// </summary>
/// <param name="treeNode">The tree node to replace</param>
/// <param name="referencedElement">The element that should be replaced</param>
/// <returns>if the replacement has been done</returns>
private bool ReplaceNonTerminal(InterpreterTreeNode treeNode, ModelElement referencedElement)
{
bool retVal;
if (ReplaceAllReferences)
{
// Only do the repleacement for elements defined in a dictionary
retVal = EnclosingFinder <Dictionary> .find(referencedElement) != null;
}
else
{
// Check that the reference corresponds to the specific reference for this visitor
retVal = referencedElement == Ref;
}
if (retVal)
{
// Removes the prefix
if (ShouldRemovePrefix)
{
ReplaceText("", StartRemove, EndRemove);
ResetRemoveIndexes();
}
string replacementValue = referencedElement.ReferenceName(User);
ReplaceText(replacementValue, treeNode.Start, treeNode.End);
}
return(retVal);
}
/// <summary>
/// Provides the instance related to a character index in the textbox
/// </summary>
/// <param name="index"></param>
/// <returns></returns>
protected INamable GetInstance(int index)
{
INamable retVal = null;
if (Model != null)
{
InterpreterTreeNode node = Parse(EditionTextBox.Text);
if (node != null)
{
ContextGrabber grabber = new ContextGrabber();
retVal = grabber.GetContext(index, node);
}
if (retVal == null)
{
// Perform a fuzzy search by trying to find the corresponding expression text
string text = GetExpressionText(EditionTextBox.Text, index);
node = Parse(text);
index = text.Length - 1;
if (node != null)
{
ContextGrabber grabber = new ContextGrabber();
retVal = grabber.GetContext(index, node);
}
}
}
return(retVal);
}
/// <summary>
/// Provides an explanation of an interpreter tree node, if it is not null
/// </summary>
/// <param name="node"></param>
/// <param name="explainSubElements"></param>
public void Write(InterpreterTreeNode node, bool explainSubElements = true)
{
if (node != null)
{
node.GetExplain(this, explainSubElements);
}
else
{
Data.Append("<Unknown>");
}
}
/// <summary>
/// Parses the current statement or expression and returns the interpreter tree node
/// </summary>
/// <param name="text">The text to parse</param>
/// <returns></returns>
private InterpreterTreeNode Parse(string text)
{
InterpreterTreeNode retVal = null;
if (!String.IsNullOrEmpty(text))
{
Parser parser = new Parser();
retVal = parser.Statement(Instance as ModelElement, EditionTextBox.Text, true, true);
if (retVal == null)
{
retVal = parser.Expression(Instance as ModelElement, text, AllMatches.INSTANCE, true, null, true, true);
}
}
return(retVal);
}
/// <summary>
/// Removes the prefix according to the StartRemove and EndRemove values
/// </summary>
/// <param name="treeNode">The tree node to replace</param>
/// <param name="referencedElement">The element that should be replaced</param>
/// <returns>if the replacement has been done</returns>
private bool ReplaceNonTerminal(InterpreterTreeNode treeNode, ModelElement referencedElement)
{
bool retVal;
if (ReplaceAllReferences)
{
// Only do the repleacement for elements defined in a dictionary
retVal = EnclosingFinder<Dictionary>.find(referencedElement) != null;
}
else
{
// Check that the reference corresponds to the specific reference for this visitor
retVal = referencedElement == Ref;
}
if (retVal)
{
// Removes the prefix
if (ShouldRemovePrefix)
{
ReplaceText("", StartRemove, EndRemove);
ResetRemoveIndexes();
}
string replacementValue = referencedElement.ReferenceName(User);
ReplaceText(replacementValue, treeNode.Start, treeNode.End);
}
return retVal;
}
