Crate neco_history 

Tree-based edit history with undo, redo, branching, and checkpointing.

This crate provides EditHistory, a text-editing history that records edits as nodes in a neco_tree::CursoredTree. When the user undoes and then makes a new edit, a new branch is created instead of discarding the old timeline.

Two recording modes are supported:

• EntryKind::Reversible: stores forward and inverse TextPatches. Inverse patches are derived automatically from the current text and the forward patches.
• EntryKind::Snapshot: stores a complete text snapshot. Use this for operations where computing a delta is impractical (e.g. external file reload).

Periodic checkpoints (full snapshots) are inserted automatically so that jump_to can reach distant nodes efficiently.

Structs

EditHistory

Tree-structured edit history with cursor-based undo/redo.

HistoryEntry

Data stored in each history node.

RedoResult

Information returned by EditHistory::redo.

UndoResult

Information returned by EditHistory::undo.

Enums

EntryKind

Determines how an edit can be undone/redone.

JumpStep

A single step in a EditHistory::jump_to path.