Methods

The engine, with no componentwidget anywhere in it. Two documents in and what changed out, two pictures in and what changed out, a patch read or written.

Page	What it does
diffText	Compares two documents by line, then inside each changed line.
diffWords	Compares two lines a word at a time.
diffCharacters	The same comparison, a character at a time.
diffSequence	Compares two sequences of tokens, whatever the tokens are.
formatPatch	Writes a comparison out as a unified diff.
parsePatch	Reads a unified diff back into comparisons.
diffImage	Compares two pictures pixel by pixel.
diffImages	Compares several pictures at once against a baseline.
imageSimilarity	Says how alike two pictures are, as one number.
imagesSimilarity	Says how alike several are, and which is the odd one out.
paintDiffImage	Turns the mask of a comparison into a picture.
paintDiffImages	The same, for a comparison of several.