//private LoveControlBlock ConvertToControlBlock(LoveBlock block)
//{
// if (block.Children.Count == 0) { return null; }
// var firstNode = block.Children.First();
// if (firstNode is LoveBinding)
// {
// var firstBinding = firstNode as LoveBinding;
// var regexControl = @"\s*((?:if)|(?:foreach))\s*\((.*)\)\s*({)?\s*";
// var m = Regex.Match(firstBinding.Content, regexControl);
// if (m.Success)
// {
// var controlType = m.Groups[1].Value;
// var statement = m.Groups[2].Value;
// var openBraces = m.Groups.Count > 2 ? m.Groups[3].Value : "";
// return CreateControlBlock(block, firstBinding, controlType, statement, openBraces);
// }
// }
// return null;
//}
//private static LoveControlBlock CreateControlBlock(LoveBlock block, LoveBinding firstBinding, string controlType, string statement, string openBraces)
//{
// var lastChild = block.Children.Last();
// var hasClosingBraces = openBraces == "{"
// && lastChild is LoveBinding
// && (lastChild as LoveBinding).Content.Trim() == "}";
// var bodyLength = block.Children.Count - 1;
// bodyLength -= hasClosingBraces ? 1 : 0;
// var bodyChildren = block.Children.Skip(1).Take(bodyLength);
// var bodyBlock = new LoveBlock(bodyChildren.First().Start, bodyChildren.Sum(c => c.Length));
// bodyBlock.Children.AddRange(bodyChildren);
// if (controlType == "if")
// {
// LoveBindingBase statementBinding = CreateStatement(firstBinding, statement);
// return new LoveIfBlock(block.Start, block.Length,
// statementBinding,
// bodyBlock);
// }
// else if (controlType == "foreach")
// {
// var regexForeach = @"\s*(\S+)\s+in\s+(\S+)\s*";
// var m = Regex.Match(statement, regexForeach);
// if (m.Success)
// {
// var itemName = m.Groups[1].Value;
// statement = m.Groups[2].Value;
// var itemNameSpan = new LoveSpan(firstBinding.Start + firstBinding.Content.IndexOf(itemName), itemName.Length, itemName);
// LoveBindingBase statementBinding = CreateStatement(firstBinding, statement);
// return new LoveForeachBlock(block.Start, block.Length,
// itemNameSpan,
// statementBinding,
// bodyBlock);
// }
// else
// {
// return null;
// }
// }
// return null;
//}
private static LoveBindingBase CreateStatement(LoveBinding firstBinding, string statement)
{
LoveBindingBase statementBinding = new LoveBinding(firstBinding.Start + firstBinding.Content.IndexOf(statement), statement.Length, statement);
var converted = ConvertBinding(statementBinding);
if (converted is LoveBindingBase)
{
statementBinding = converted as LoveBindingBase;
}
return(statementBinding);
}
private LoveBlock VisitBlock(Block block)
{
// Handle regular block
var lBlock = new LoveBlock(block.Start.AbsoluteIndex, block.Length);
foreach (var c in block.Children)
{
var node = VisitNode(c);
if (node != null)
{
lBlock.Children.Add(node);
}
}
// Merge blocks of same type
var newChildren = new List <LoveNode>();
LoveNode newChild = null;
foreach (var c in lBlock.Children)
{
if (newChild != null && newChild.GetType() == c.GetType() && c is LoveSpan)
{
var cSpan = c as LoveSpan;
var newSpan = newChild as LoveSpan;
if (cSpan is LoveBinding)
{
newChild = new LoveBinding(newSpan.Start, newSpan.Length + cSpan.Length, newSpan.Content + cSpan.Content);
}
else if (cSpan is LoveMarkup)
{
newChild = new LoveMarkup(newSpan.Start, newSpan.Length + cSpan.Length, newSpan.Content + cSpan.Content);
}
else if (cSpan is LoveMarkupExpression)
{
newChild = new LoveMarkupExpression(newSpan.Start, newSpan.Length + cSpan.Length, newSpan.Content + cSpan.Content);
}
}
else
{
if (newChild != null)
{
newChildren.Add(newChild);
newChild = null;
}
newChild = c;
}
}
if (newChild != null)
{
newChildren.Add(newChild);
newChild = null;
}
lBlock.Children.Clear();
lBlock.Children.AddRange(newChildren);
if (lBlock.Children.Count == 0)
{
return(null);
}
// Simplify children
for (int i = 0; i < lBlock.Children.Count; i++)
{
var child = lBlock.Children[i];
// Convert bindings to specific bindings if possible
if (child is LoveBinding)
{
lBlock.Children[i] = ConvertBinding(child as LoveBinding);
}
}
ConvertChildrenToControlBlocks(lBlock);
//// Convert to control blocks if Possible
//var cBlock = ConvertToControlBlock(lBlock);
//if (cBlock != null) { return cBlock; }
return(lBlock);
}
