NewFileDiffReader returns a new FileDiffReader that reads a file unified diff.

NewHunksReader returns a new HunksReader that reads unified diff hunks from r.

NewMultiFileDiffReader returns a new MultiFileDiffReader that reads a multi-file unified diff from r.

ParseFileDiff parses a file unified diff.

ParseHunks parses hunks from a unified diff.

ParseMultiFileDiff parses a multi-file unified diff.

PrintFileDiff prints a FileDiff in unified diff format.

PrintHunks prints diff hunks in unified diff format.

PrintMultiFileDiff prints a multi-file diff in unified diff format.

ErrBadFileHeader is when a file unified diff has a malformed file header (i.e., the lines that begin with "---" and "+++").

ErrBadOnlyInMessage is when a file have a malformed `only in` message Should be in format `Only in {source}: {filename}`.

ErrExtendedHeadersEOF is when an EOF was encountered while reading extended file headers, which means that there were no ---/+++ headers encountered before hunks (if any) began.

ErrNoFileHeader is when a file unified diff has no file header (i.e., the lines that begin with "---" and "+++").

ErrNoHunkHeader indicates that a unified diff hunk header was expected but not found during parsing.

ErrBadHunkHeader indicates that a malformed unified diff hunk header was encountered during parsing.

ErrBadHunkLine is when a line not beginning with ' ', '-', '+', or '\' is encountered while reading a hunk.

A FileDiff represents a unified diff for a single file.

FileDiffReader reads a unified file diff.

A Hunk represents a series of changes (additions or deletions) in a file's unified diff.

A HunksReader reads hunks from a unified diff.

MultiFileDiffReader reads a multi-file unified diff.

A ParseError is a description of a unified diff syntax error.

A Stat is a diff stat that represents the number of lines added/changed/deleted.

OverflowError is returned when we have overflowed into the start of the next file while reading extended headers.