Module diff_doc 

Unified-diff parsing + whitespace/formatting filters.

Pure data model — no terminal I/O, no ratatui rendering. Consumed by the git TUI overlay (rendering wired in a follow-up task).

Structs

DiffDocument

One parsed unified-diff document: zero or more DiffFile entries.

DiffFile

One file in a DiffDocument.

DiffLine

One line inside a Hunk. The text DOES NOT include the leading +/-/ prefix character.

Hunk

One hunk header (@@ -old,count +new,count @@) plus its lines.

Enums

DiffLineKind

Role of a single DiffLine.

DiffViewMode

View mode for the rendered diff. Orthogonal to WhitespaceMode — both live on the same DiffDocument and can be applied independently.

WhitespaceMode

Whitespace / formatting filter mode for filter_whitespace.

Functions

filter_whitespace

Filter a DiffDocument by WhitespaceMode. Returns a new document; hunks that survive filtering keep their text but may have their line kinds rewritten (Added/Removed → Context). Hunks that are fully demoted keep all their lines — only the kind changes.

parse_unified_diff

Parse a git diff output into a DiffDocument.