/// <summary>
/// Emulate GNU diff's format.
/// Header: @@ -382,8 +481,9 @@
/// Indices are printed as 1-based, not 0-based.
/// </summary>
/// <returns>The GNU diff string</returns>
public override string ToString()
{
string coords1, coords2;
if (Length1 == 0)
{
coords1 = Start1 + ",0";
}
else if (Length1 == 1)
{
coords1 = Convert.ToString(Start1 + 1);
}
else
{
coords1 = (Start1 + 1) + "," + Length1;
}
if (Length2 == 0)
{
coords2 = Start2 + ",0";
}
else if (Length2 == 1)
{
coords2 = Convert.ToString(Start2 + 1);
}
else
{
coords2 = (Start2 + 1) + "," + Length2;
}
StringBuilder text = new StringBuilder()
.Append("@@ -")
.Append(coords1)
.Append(" +")
.Append(coords2)
.Append(" @@\n");
// Escape the body of the patch with %xx notation.
foreach (Diff aDiff in Diffs)
{
switch (aDiff.Operation)
{
case Operation.INSERT:
text.Append('+');
break;
case Operation.DELETE:
text.Append('-');
break;
case Operation.EQUAL:
text.Append(' ');
break;
}
text.Append(DiffMatchPatch.EncodeURI(aDiff.Text)).Append("\n");
}
return(text.ToString());
}