Add item represents an insert diff.

Delete item represents a delete diff.

Equal item represents a equals diff.

UnifiedEncoder encodes an unified diff into the provided Writer.

Chunk represents a portion of a file transformation to another.

File contains all the file metadata necessary to print some patch formats.

FilePatch represents the necessary steps to transform one file to another.

Patch represents a collection of steps to transform several files.

Operation defines the operation of a diff item.