/// <summary>
/// Entrypoint into the algorithm this class is all about. This method triggers that the
/// differences between A and B are calculated in form of a list of edits.
/// </summary>
protected void calculateEdits()
{
edits = new EditList();
middle.initialize(0, a.size(), 0, b.size());
if (middle.beginA >= middle.endA &&
middle.beginB >= middle.endB)
{
return;
}
calculateEdits(middle.beginA, middle.endA,
middle.beginB, middle.endB);
}
private bool isEqual(EditList o)
{
if (Count != o.Count)
{
return(false);
}
for (int i = 0; i < Count; i++)
{
if (!this[i].Equals(o[i]))
{
return(false);
}
}
return(true);
}
public override bool Equals(object obj)
{
EditList e = (obj as EditList);
if (e != null)
{
return(isEqual(e));
}
string s = (obj as string);
if (s != null)
{
return(isEqual(s));
}
return(false);
}
private void FormatEdits(Stream @out, RawText a, RawText b, EditList edits)
{
for (int curIdx = 0; curIdx < edits.Count; /* */)
{
Edit curEdit = edits.get(curIdx);
int endIdx = FindCombinedEnd(edits, curIdx);
Edit endEdit = edits.get(endIdx);
int aCur = Math.Max(0, curEdit.BeginA - _context);
int bCur = Math.Max(0, curEdit.BeginB - _context);
int aEnd = Math.Min(a.size(), endEdit.EndA + _context);
int bEnd = Math.Min(b.size(), endEdit.EndB + _context);
WriteHunkHeader(@out, aCur, aEnd, bCur, bEnd);
while (aCur < aEnd || bCur < bEnd)
{
if (aCur < curEdit.BeginA || endIdx + 1 < curIdx)
{
WriteLine(@out, ' ', a, aCur);
aCur++;
bCur++;
}
else if (aCur < curEdit.EndA)
{
WriteLine(@out, '-', a, aCur++);
}
else if (bCur < curEdit.EndB)
{
WriteLine(@out, '+', b, bCur++);
}
if (End(curEdit, aCur, bCur) && ++curIdx < edits.Count)
{
curEdit = edits.get(curIdx);
}
}
}
}