public string DoDiff() {
string[] origLines = origString.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None);
string[] newLines = newString.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None);
var diffs = new Diff( origLines, newLines );
var formatter = new TableDiffFormatter();
return formatter.format(diffs);
}
/**
* Format a diff.
*
* @param diff object A Diff object.
* @return string The formatted output.
*/
public string format( Diff diff ) {
int x0 = 0, y0 = 0;
int xi = 1, yi = 1;
List<_DiffOp> block = new List<_DiffOp>();
List<string> context = new List<string>();
int nlead = leading_context_lines;
int ntrail = trailing_context_lines;
this._start_diff();
foreach (var edit in diff.edits ) {
if ( edit.type == DiffType.Copy ) {
if ( block.Any() ) {
if ( edit.orig.Count() <= nlead + ntrail ) {
block.Add(edit);
}
else {
if ( ntrail != 0 ) {
context = edit.orig.Take(ntrail).ToList();
block.Add(new _DiffOp_Copy( context ));
}
this._block( x0, ntrail + xi - x0,
y0, ntrail + yi - y0,
block );
block.Clear();
}
}
context = edit.orig;
}
else {
if (!block.Any()) {
context = context.Skip(context.Count - nlead).ToList();
x0 = xi - context.Count;
y0 = yi - context.Count;
block.Clear();
if ( context.Count > 0 )
{block.Add(new _DiffOp_Copy( context ));}
}
block.Add(edit);
}
if ( edit.orig.Count > 0 )
{ xi += edit.orig.Count ; }
if ( edit.closing.Count > 0 )
{ yi += edit.closing.Count;}
}
if ( block.Count > 0 )
{
this._block( x0, xi - x0,
y0, yi - y0,
block );
}
return _end_diff();
}