public IEnumerable <Difference> Generate(YamlNode original, YamlNode changed)
{
var result = new List <Difference>();
foreach (var position in NodeTraverser.Traverse(original))
{
var path = position.Path;
var originalNode = position.Node;
var changedNode = NodeFinder.Find(path, changed);
if (result.Any(d => path.IsUnder(d.Path)))
{
continue;
}
foreach (var difference in NodeComparer.Compare(path, originalNode, changedNode))
{
result.Add(difference);
}
}
return(result.AsReadOnly());
}
public void OutputDiff(string original, YamlNode originalDocument, string changed, YamlNode changedDocument, List <Difference> changes)
{
var originalLines = original.Split('\n');
var changedLines = changed.Split('\n');
var finder = new NodeFinder();
var deletions = new Dictionary <int, string>();
foreach (var change in changes.Where(ch => ch.ChangeType == ChangeType.Deletion))
{
deletions[finder.Find(change.Path, originalDocument).Start.Line - 1] = string.Join('\n', changedLines.Skip(change.Node.Start.Line - 1).Take(change.Node.AllNodes.Max(n => n.End.Line) - change.Node.Start.Line + 1));
}
changes.RemoveAll(ch => ch.ChangeType == ChangeType.Deletion);
var colorizations = Colorization.CreateFrom(changes);
for (var y = 0; y < originalLines.Length; y++)
{
if (deletions.ContainsKey(y))
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(deletions[y]);
Console.ForegroundColor = Colorization.DefaultTextColor;
}
var line = originalLines[y];
var colors = new Queue <Colorization>(colorizations.Where(c => c.Line == y + 1).OrderBy(c => c.StartColumn));
Console.ForegroundColor = Colorization.DefaultTextColor;
if (!colors.Any())
{
Console.WriteLine(line);
continue;
}
var x = 0;
while (colors.Any())
{
var color = colors.Dequeue();
if (color.StartColumn < x)
{
continue;
}
Console.Write(line.Substring(x, color.StartColumn - 1 - x));
x = color.StartColumn - 1;
Console.ForegroundColor = color.Color;
Console.Write(line.Substring(x, color.Length));
x = color.EndColumn - 1;
Console.ForegroundColor = Colorization.DefaultTextColor;
}
Console.Write(line.Substring(x));
Console.WriteLine();
}
Console.ForegroundColor = ConsoleColor.Gray;
}