Jumplist

A chronological stack of "interesting" cursor positions, so you can <C-o> back to where you came from after any jump.

Keys

Keys	Effect
`<C-o>`	Go to the previous entry. Records current position as a forward target so `<Tab>` can return.
`<Tab>`	Go forward through the list. (Terminals send `<Tab>` for `Ctrl-I`, vim's traditional forward-jump key.)

What gets recorded

A jump is pushed before any of these:

LSP navigation: gd, gD, gi, gf, gr
Search jumps: /, ? accepting a pattern
Symbol search: *, £, #
Fuzzy finder: :ff opening a result
Absolute-line G / gg (e.g. 42G, gg)

Step-wise motions (j, k, w, <C-f>, …) are NOT recorded — the list stays useful as a "places I really meant to go" rather than a trace of every move.

Coalescing

Repeated jumps within the same line of the same buffer collapse into the most recent entry. Hopping /foo → /foo (next match on the same line) doesn't litter the list with duplicates.

Capacity

100 entries max. When full, the oldest entry is dropped.

Per-editor, not per-window

The list is global to the editor session; jumping to a different file is just another entry. <C-o> switches windows / tabs back to wherever the entry lived. The window where you press <C-o> becomes the window the jump lands in.

Implementation

src/jumplist.rs — Jumplist, JumpEntry, record / back / forward.
src/jump_actions.rs — jump_back, jump_forward, plus * / £ / # (search_word_under_cursor, search_word_under_cursor_backward) and zz / zt / zb (centre / top / bottom anchoring).
Every site that pushes a jump calls editor.jumplist_record_here() right before the actual position change.