public static void WriteUnifiedDiff(Algorithm.Diff.Diff diff, TextWriter writer, string fromfile, string tofile, int context)
{
writer.Write("--- ");
writer.WriteLine(fromfile);
writer.Write("+++ ");
writer.WriteLine(tofile);
ArrayList hunks = new ArrayList();
foreach (Algorithm.Diff.Diff.Hunk hunk in diff)
{
Algorithm.Diff.Diff.Hunk hunk2 = null;
if (hunks.Count > 0)
{
hunk2 = (Algorithm.Diff.Diff.Hunk)hunks[hunks.Count - 1];
}
if (hunk.Same)
{
if (hunk2 == null)
{
if (hunk.Left.Count > context)
{
hunks.Add(hunk.Crop(hunk.Left.Count - context, 0));
}
else
{
hunks.Add(hunk);
}
}
else if (hunk.Left.Count <= (context * 2))
{
hunks.Add(hunk);
}
else
{
hunks.Add(hunk.Crop(0, hunk.Left.Count - context));
WriteUnifiedDiffSection(writer, hunks);
hunks.Clear();
if (hunk.Left.Count > context)
{
hunks.Add(hunk.Crop(hunk.Left.Count - context, 0));
}
else
{
hunks.Add(hunk);
}
}
continue;
}
hunks.Add(hunk);
}
if ((hunks.Count > 0) && ((hunks.Count != 1) || !((Algorithm.Diff.Diff.Hunk)hunks[0]).Same))
{
WriteUnifiedDiffSection(writer, hunks);
}
}
private static void WriteUnifiedDiffSection(TextWriter writer, ArrayList hunks)
{
Algorithm.Diff.Diff.Hunk hunk = (Algorithm.Diff.Diff.Hunk)hunks[0];
Algorithm.Diff.Diff.Hunk hunk2 = (Algorithm.Diff.Diff.Hunk)hunks[hunks.Count - 1];
writer.Write("@@ -");
writer.Write((int)(hunk.Left.Start + 1));
writer.Write(",");
writer.Write((int)((hunk2.Left.End - hunk.Left.Start) + 1));
writer.Write(" +");
writer.Write((int)(hunk.Right.Start + 1));
writer.Write(",");
writer.Write((int)((hunk2.Right.End - hunk.Right.Start) + 1));
writer.WriteLine(" @@");
foreach (Algorithm.Diff.Diff.Hunk hunk3 in hunks)
{
if (hunk3.Same)
{
WriteBlock(writer, ' ', hunk3.Left);
continue;
}
WriteBlock(writer, '-', hunk3.Left);
WriteBlock(writer, '+', hunk3.Right);
}
}
public override bool Equals(object o)
{
Algorithm.Diff.Diff.Hunk hunk = o as Algorithm.Diff.Diff.Hunk;
return((((this.s1start == hunk.s1start) && (this.s1start == hunk.s1end)) && ((this.s1start == hunk.s2start) && (this.s1start == hunk.s2end))) && (this.same == hunk.same));
}
