protected bool subItemsEqual(DifferenceItem otherItem)
{
if (subItems.Count == 0)
{
return(otherItem.SubItems.Count == 0);
}
else if (otherItem.SubItems.Count == 0)
{
return(false);
}
if (subItems.Count != otherItem.SubItems.Count)
{
return(false);
}
for (var i = 0; i < subItems.Count; i++)
{
if (!subItems[i].Equals(otherItem.SubItems[i]))
{
return(false);
}
}
return(true);
}
public static Difference FromDifferenceItem(DifferenceItem item)
{
var position = item.Position.DefaultTo(() => - 1);
return(new Difference(item.Text, item.Type, position));
}
protected static void buildItems(DifferenceResult result, List <DifferenceItem> oldItems, List <DifferenceItem> newItems,
Maybe <ItemBuilder> _subItemBuilder)
{
var oldPosition = 0;
var newPosition = 0;
foreach (var diffBlock in result.DifferenceBlocks)
{
while (newPosition < diffBlock.NewInsertStart && oldPosition < diffBlock.OldDeleteStart)
{
oldItems.Add(new DifferenceItem(result.OldItems[oldPosition], DifferenceType.Unchanged, oldPosition + 1));
newItems.Add(new DifferenceItem(result.NewItems[newPosition], DifferenceType.Unchanged, newPosition + 1));
oldPosition++;
newPosition++;
}
var i = 0;
while (i < Math.Min(diffBlock.OldDeleteCount, diffBlock.NewInsertCount))
{
var oldItem = new DifferenceItem(result.OldItems[i + diffBlock.OldDeleteStart], DifferenceType.Deleted,
oldPosition + 1);
var newItem = new DifferenceItem(result.NewItems[i + diffBlock.NewInsertStart], DifferenceType.Inserted,
newPosition + 1);
if (_subItemBuilder.If(out var subItemBuilder))
{
var oldWords = result.OldItems[oldPosition].Split("/s+; f");
var newWords = result.NewItems[newPosition].Split("/s+; f");
var differ = new DifferenceBuilder(oldWords, newWords, false, false);
if (differ.Build().If(out _))
{
subItemBuilder(result.OldItems[oldPosition], result.NewItems[newPosition], oldItem.SubItems, newItem.SubItems);
newItem.Type = DifferenceType.Modified;
oldItem.Type = DifferenceType.Modified;
}
}
oldItems.Add(oldItem);
newItems.Add(newItem);
oldPosition++;
newPosition++;
i++;
}
if (diffBlock.OldDeleteCount > diffBlock.NewInsertCount)
{
while (i < diffBlock.OldDeleteCount)
{
oldItems.Add(new DifferenceItem(result.OldItems[i + diffBlock.OldDeleteStart], DifferenceType.Deleted,
oldPosition + 1));
newItems.Add(new DifferenceItem());
oldPosition++;
i++;
}
}
else
{
while (i < diffBlock.NewInsertCount)
{
newItems.Add(new DifferenceItem(result.NewItems[i + diffBlock.NewInsertStart], DifferenceType.Inserted,
newPosition + 1));
oldItems.Add(new DifferenceItem());
newPosition++;
i++;
}
}
}
while (newPosition < result.NewItems.Length && oldPosition < result.OldItems.Length)
{
oldItems.Add(new DifferenceItem(result.OldItems[oldPosition], DifferenceType.Unchanged, oldPosition + 1));
newItems.Add(new DifferenceItem(result.NewItems[newPosition], DifferenceType.Unchanged, newPosition + 1));
oldPosition++;
newPosition++;
}
}
