What Runyte does

Development reference · View source

Editing

Normal, Insert, Replace, Select, and Command modes
Multiple selections with Helix-style multi-cursor commands
Counts, named registers, and recordable keyboard macros
Rope-backed buffers with transactional, single-step multi-cursor undo
Undo/redo, yank/paste, dirty-buffer protection, and save-as
Operating-system clipboard yank and paste
Structural Tree-sitter selection, text objects, outlines, syntax-aware indentation, and pane-local code folding
Word completion from every open buffer, including the explorer, with no language server and no trigger key required
Unicode-aware buffer positions and terminal widths

Languages

Tree-sitter syntax highlighting for Python, Rust, Swift, C, C++, JavaScript, TypeScript, TSX, HTML, CSS, Go, Bash, Java, Kotlin, SQL, Lua, C#, Zig, CMake, Protobuf, Make, INI, Markdown, TOML, YAML, JSON, JSONC, Dockerfile, XML, HCL/Terraform, Ruby, PHP, and Elixir
Language servers: diagnostics, completion, hover, signature help, goto, references, rename, code actions, formatting, and symbol pickers
Markdown documents rendered as formatted text on ?, with terminal bold, italic, underline, and strikethrough

Files and navigation

Oil-style editable directory explorer plus a unified Finder
Editable directory buffers with explicit filesystem plan confirmation
Filterable open-buffer picker and workspace-wide text search
Multicursor search over the buffer or a selection, with literal and regular-expression flavours
Per-pane jumplists with reversible cross-buffer navigation
Registry-driven navigation, editing, search, and view-specific commands
Side-by-side comparison of any two buffers, aligned line for line and scrolled together
Binary files handed to a program you name, with recent choices remembered

Layout and display

Arbitrarily nested vertical and horizontal splits with recency-aware directional focus
Shared buffers between split panes
Configurable Unicode-aware soft wrapping and visual-line movement
Soft-wrap continuation arrows in the line-number gutter
A centred, editable writing viewport toggled with :zen, and a plain maximized pane toggled with :fullscreen
Which-key-style hints for every registered command family, plus exact completed-command descriptions and results on the interaction line
Differential, flicker-free terminal rendering through Ratatui
Fold-aware mouse cursor placement, drag selection, wheel scrolling, and pane resize

Git

Asynchronous Git status, gutter marks, changed-file views, file/hunk/safe selected-line staging, commit, pull/push, branches, worktrees, history, blame, stashes, and diffs

Terminals and sessions

Terminal panes running any interactive program — a shell, htop, vim, a coding agent — with scrollback, modal navigation over it, and a command that sends a buffer’s selection to one as a single paste
Optional --mux local workspace persistence for unsaved editor, language-service, and live terminal-session state
$EDITOR-compatible --wait requests with revision-safe local edits

Configuration