private static LoveNotBinding CovertToNotBinding(LoveBindingBase loveBinding)
{
if (loveBinding.Content.StartsWith("!"))
{
return(new LoveNotBinding(loveBinding.Start + 1, loveBinding.Length - 1, loveBinding.Content.Substring(1)));
}
return(null);
}
private LoveControlBlock CreateControlBlock(List <LoveNode> blockSet, string controlType, string statement, string openBraces)
{
var controlStart = blockSet.First() as LoveBinding;
var controlEnd = blockSet.Last();
var hasClosingBraces = openBraces == "{" &&
controlEnd is LoveBinding &&
(controlEnd as LoveBinding).Content.Trim() == "}";
var bodyLength = blockSet.Count - 1;
bodyLength -= hasClosingBraces ? 1 : 0;
var bodyChildren = blockSet.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(controlStart, statement);
return(new LoveIfBlock(controlStart.Start, controlEnd.Start - controlStart.Start + controlEnd.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 LoveName(controlStart.Start + controlStart.Content.IndexOf(itemName), itemName.Length, itemName);
LoveBindingBase statementBinding = CreateStatement(controlStart, statement);
return(new LoveForeachBlock(controlStart.Start, controlEnd.Start - controlStart.Start + controlEnd.Length,
itemNameSpan,
statementBinding,
bodyBlock));
}
else
{
return(null);
}
}
return(null);
}
private static LoveMarkupExpression ConvertToMarkupExpression(LoveBindingBase loveBinding)
{
var regexHtmlHelper = @"\s*Html\.";
var m = Regex.Match(loveBinding.Content, regexHtmlHelper);
if (m.Success)
{
return(new LoveMarkupExpression(loveBinding.Start, loveBinding.Length, loveBinding.Content));
}
return(null);
}
private static LoveNode ConvertBinding(LoveBindingBase binding)
{
var conversions = new List <Func <LoveBindingBase, LoveNode> >()
{
ConvertToMarkupExpression,
CovertToNotBinding
};
foreach (var conversion in conversions)
{
var converted = conversion(binding);
if (converted != null)
{
return(converted);
}
}
return(binding);
}