public Node CreateSampleTree()
{
// 0
// /|\
// 1 7 8
// /|\ |
// 2 3 4 9
// / \
// 5 6
var root = new Node("0");
root.Add(new Node("1"));
root.Add(new Node("7"));
root.Add(new Node("8"));
root.Children[0].Add(new Node("2"));
root.Children[0].Add(new Node("3"));
root.Children[0].Add(new Node("4"));
root.Children[2].Add(new Node("9"));
root.Children[0].Children[2].Add(new Node("5"));
root.Children[0].Children[2].Add(new Node("6"));
return root;
}
private void comment(Node node)
{
node.Comment = true;
foreach(var child in node.Children) comment(child);
}
public Create(Node parent, string template, Dictionary<string,object> variables, string group, string delimiter, int? position)
{
this.Parent = parent;
if (group != null) this.Group = new TypeCobol.Codegen.Skeletons.Templates.RazorEngine().Replace(group, variables, delimiter);
var solver = TypeCobol.Codegen.Skeletons.Templates.RazorEngine.Create(template, variables, delimiter);
this.Child = new GeneratedNode((TypeCobol.Codegen.Skeletons.Templates.RazorEngine)solver);
this.position = position;
}
public Replace(Node node, string template, Dictionary<string,object> variables, string group, string delimiter)
{
this.Old = node;
if (group != null) this.Group = new TypeCobol.Codegen.Skeletons.Templates.RazorEngine().Replace(group, variables, delimiter);
var solver = TypeCobol.Codegen.Skeletons.Templates.RazorEngine.Create(template, variables, delimiter);
this.New = new GeneratedNode((TypeCobol.Codegen.Skeletons.Templates.RazorEngine)solver);
}
public Comment(Node node)
{
this.Node = node;
}
private Node GetLocation(Node node, string location, out int? index)
{
index = null;
if (location.EndsWith(".begin")) {
location = location.Substring(0, location.Length - ".begin".Length);
index = 0;
} else
if (location.EndsWith(".end")) {
location = location.Substring(0, location.Length - ".end".Length);
}
if (location == null || location.ToLower().Equals("node")) return node;
var root = node.Root;
var result = root.Get(location);
if (result != null) return result;
result = Create(root, location);
if (result != null) return result;
throw new System.ArgumentException("Undefined URI: "+location);
}
private Dictionary<string, object> GetProperties(Node node, IEnumerable<string> properties)
{
var result = new Dictionary<string,object>();
var errors = new System.Text.StringBuilder();
foreach(var pname in properties) {
var property = node[pname];
if (property != null) result[pname] = property;
else errors.Append(pname).Append(", ");
}
if (errors.Length > 0) {
errors.Length -= 2;
errors.Insert(0, "Undefined properties for "+node.GetType().Name+": ");
errors.Append(". (line:\"").Append(node.CodeElement.InputStream).Append("\")");
throw new System.ArgumentException(errors.ToString());
}
return result;
}
private ICollection<Action> GetActions(Node node)
{
var actions = new List<Action>();
var skeleton = GetActiveSkeleton(node);
if (skeleton != null) {
var properties = GetProperties(node, skeleton.Properties);
foreach(var pattern in skeleton) {
var action = GetAction(node, properties, pattern);
if (action != null) actions.Add(action);
}
}
return actions;
}
private Skeleton GetActiveSkeleton(Node node)
{
foreach(var skeleton in Skeletons) {
bool active = false;
foreach(var condition in skeleton.Conditions) {
active = active || condition.Verify(node); // OR
}
if (active) return skeleton;//TODO: what if more than 1 skel activates?
}
return null;
}
private Node Create(Node node, string location)
{
var factory = new Codegen.Nodes.Factory();
var parts = location.Split(new char[] { '.' });
var path = new System.Text.StringBuilder();
Node result = null;
foreach(var part in parts) {
path.Append(part);
var current = node.Get(path.ToString());
if (current == null) {
string nextsibling;
current = factory.Create(part, out nextsibling);
if (current == null) return null;
int index = 0;
if (nextsibling != null) {
var sibling = result.Get(nextsibling);
index = sibling.Parent.IndexOf(sibling);
}
result.Add(current, index);
}
result = current;
path.Append('.');
}
return result;
}
private Action GetAction(Node source, Dictionary<string,object> properties, Pattern pattern)
{
int? index;
var destination = GetLocation(source, pattern.Location, out index);
if ("create".Equals(pattern.Action)) {
return new Create(destination, pattern.Template, properties, pattern.Group, pattern.Delimiter, index);
}
if ("replace".Equals(pattern.Action)) {
return new Replace(destination, pattern.Template, properties, pattern.Group, pattern.Delimiter);
}
if ("comment".Equals(pattern.Action)) {
return new Comment(destination);
}
if ("expand".Equals(pattern.Action)) {
return new Expand(source, destination, pattern.Location);
}
if ("erase".Equals(pattern.Action)) {
return new Erase(destination, pattern.Template);
}
System.Console.WriteLine("Unknown action: \""+pattern.Action+"\"");
return null;
}
public void Visit(Node node)
{
var actions = GetActions(node);
Actions.AddRange(actions);
foreach(var child in new List<Node>(node.Children)) child.Accept(this);
}
public Expand(Node source, Node destination, string destinationURI)
{
this.Source = source;
this.Destination = destination;
this.DestinationURI = destinationURI;
}
public Erase(Node node, string word)
{
this.Node = node;
this.Words = new List<string> { word };
}
public void Visit(Node node)
{
bool doVisitChildren = Process(node);
if (doVisitChildren) foreach(var child in node.Children) child.Accept(this);
}
private bool Process(Node node)
{
var generated = node as Generated;
foreach(var line in node.Lines) {
if (generated != null)
// if we write generated code, we INSERT one line of code between Input lines;
// thus, we must decrease offset as it'll be re-increased by Write(line) and
// we don't want to f**k up next iteration
offset--;
else
// before we copy an original line of code, we must still write non-source
// lines (eg. comments or empty lines) so they are preserved in Output
WriteInputLinesUpTo(line);
Write(line, node.Comment);
}
return generated == null || !generated.IsLeaf;
}
