private static StmlNode CreateNode(ContainerElement parent, string fragment)
{
//verify if this is a valid node
if (fragment.Contains("[") || fragment.Contains("]"))
{
return(null);
}
var ix = fragment.IndexOf("=", StringComparison.Ordinal);
var args = "";
var name = fragment;
if (ix > 0)
{
name = fragment.Substring(0, ix).Trim();
args = fragment.Substring(ix + 1).Trim();
}
return(CreateElement(parent, name.ToLower(), args));
}
private static void AddNodes(ContainerElement current, string stml, ref int startIndex)
{
var len = stml.Length;
var i = startIndex;
var text = "";
while (i < len - 1)
{
i++;
if (i >= stml.Length)
{
break;
}
var s = stml.Substring(i, 1);
if (s == "[")
{
var start = i + 1;
var stop = stml.IndexOf("]", i, StringComparison.Ordinal);
if (stop < i)
{
continue;
}
//check if this is the end tag
var endNodeTag = stml.Substring(i, stop - i + 1).Replace(" ", "");
if (current.NodeName == "#")
{
if (endNodeTag == "[#]" || endNodeTag == "[/olist]" || endNodeTag == "[/ulist]")
{
current.Add(new TextElement(text.TrimEnd()));
var itemNode = CreateNode(current.Parent as ListElement, stml, start, ref stop);
startIndex = stop;
return;
}
}
else if (current.NodeName == "olist" || current.NodeName == "ulist")
{
if (endNodeTag == "[/olist]" || endNodeTag == "[/ulist]")
{
startIndex = stop;
return;
}
else if (endNodeTag == "[#]")
{
var itemNode = CreateNode(current as ListElement, stml, start, ref stop);
startIndex = stop;
return;
}
}
else
{
if (endNodeTag == string.Format("[/{0}]", current.NodeName))
{
current.Add(new TextElement(text));
startIndex = stop;
return;
}
}
var node = CreateNode(current, stml, start, ref stop);
if (node != null)
{
current.Add(new TextElement(text));
text = "";
current.Add(node);
i = stop;
continue;
}
}
text += s;
startIndex = i;
}
current.Add(new TextElement(text));
}
private static StmlNode CreateElement(ContainerElement parent, string name, string args)
{
switch (name)
{
case "b":
case "i":
case "u":
case "s":
case "sub":
case "sup":
case "em":
case "strong":
case "small":
case "dir":
case "center":
case "big":
case "code":
return(new TextContainerElement(name));
case "quote":
return(new BlockElement(name, "blockquote"));
case "blockquote":
case "pre":
case "h1":
case "h2":
case "h3":
case "h4":
case "h5":
return(new BlockElement(name));
case "red":
case "green":
case "blue":
case "navy":
case "fuchsia":
case "orange":
case "yellow":
case "gray":
case "purple":
return(new FontElement(name, name));
case "color":
return(new FontElement(name, args));
case "url":
return(new LinkElement(name, args));
case "email":
return(new EmailElement(name, args));
case "img":
return(new ImageElement(name, args));
case "ul":
case "ulist":
return(new ListElement(name, args));
case "ol":
case "olist":
return(new ListElement(name, args));
case "#":
if (parent is ListElement)
{
return(parent.Add(new ListItemElement()));
}
return(null);
//throw new Exception("ListItem should not be called here");
case "li":
return(new ListItemElement(name));
case "check":
return(new DingbatElement("❏"));
case "check-on":
return(new DingbatElement("<big>☑</big>"));
case "hr":
return(new NoEndTagElement("hr"));
case "page-break":
return(new PageBreakElement());
case "br":
case "line-break":
return(new NoEndTagElement("br"));
}
return(null);
}
