Rift

This is a vim-like text editor.

I use this daily and primarily.

Implemented:

• Quite a lot more than the below items, I just haven't updated this in a while due to actually working on it.
• Vim-style modal editing: normal/insert/visual/command modes, operators (d/c/y), dot repeat, granular motions
• Multi-select visual selection with a selection buffer and forward-search selection
• Configurable GhostCut-style delete
• Rope + piece-table text buffer with hybrid delta/checkpoint undo and a fancy undotree
• Custom regex engine (monster-regex) powering search and replace
• Async tree-sitter syntax highlighting across 19+ languages, with time-budgeted incremental parsing
• LSP client: diagnostics, go-to-definition, find references, hover, rename, formatting, code actions
• Annotation framework for inline document metadata (used by LSP diagnostics, extensible via plugins)
• Lua plugin system with a rich API (annotations, buffer metadata, navigation, event hooks)
• Remote daemon mode: run headless, connect over SSH with token auth
• Vertical/horizontal splits with resize, equalize, freeze, and directional pane moving
• Integrated terminal emulator (:terminal)
• Ranger-style file explorer (open, rename, delete, copy, bulk ops, hidden-file toggle)
• Clipboard ring buffer with system clipboard integration
• Fast search (sub-15ms on a 1MB buffer) with smartcase and background index warming
• Full Unicode support: multi-width rendering, correct decoding, BOM stripping
• Command-line completion for commands, settings, and file paths
• Command and search history with navigation
• Everything-is-a-buffer architecture (explorer, undotree, terminal all buffers)
• Async, non-blocking I/O via a threaded job manager

Todo:

• registers + unified yank/paste/delete
• macros (q{reg} / @{reg})
• jump list (Ctrl+O / Ctrl+I)
• marks and jumps (m{a-z}, '{mark})
• change list (g; / g,)
• help manual
• .riftrc config file
• code folding (zf/zo/zc)
• operator pending improvements (indent, format, case, etc.)
• animations

Fixed stuff (lightly tracked):

• 4 byte unicode characters are not able to be inserted on windows (this is a crossterm issue on windows, resolved by patching a fix)
• TOCTOU Race Condition between file check and file open
• Gap Buffer uses a lot of unsafe. Write more debug asserts
• inefficient string construction wrap_text in render loop
• Ascii only operation
  • Renderer does not handle multibyte characters
  • cursor calculation does not account for multibyte characters
  • fix by using String instead of u8
  • Use unicode-width instead of assuming everything is a single char
• Allow multiline notifications
• Ensure all components use the theme system
• search doesn't close on successful search
• :e to reload a file clears highlights
• floating window components not matching theme bg/fg
• searching for non existent text is really slow
• undo preview does not autoload
• syntax highlighting not updated as typing occurs
• scroll fails on select_view beyond window
• commandline commands do not properly close commandline
• insert operations not grouped as undo transactions
• delete operations not grouped as undo transactions
• undotree initial position wrong
• terminal crashes when running interactive programs
• terminal open in split causes flicker
• notification padding wrong
• cursor does not move after typing a space in the terminal
• input boxes for file explorer not accepting input
• split rendering and navigation fixes
• clipboard tooltip not showing system clipboard on Wayland (missing wayland-data-control feature)
• search highlight offset wrong on non-ASCII characters
• operator pending mode blocking on certain key sequences
• file explorer entry duplication on recursive directory traversal
• terminal keybinding actions not bindable to other keys
• annotation line adornments (e.g. markdown horizontal rules) misrendering on the wrong line when multibyte characters appeared earlier in the buffer (byte offset used where a char offset was required)
• undo tree jumps to a distant history node by replaying the diff path from the common ancestor, which got slower the further away the target was; added snapshot-based teleport so distant jumps restore state directly instead of replaying every intermediate edit
• quote text objects (i"/a" etc.) used a "nearest enclosing, doubled-quote" pairing rule that diverges from real vim; switching to vim's sequential pairing broke that nesting behavior, so quote/character disambiguation now only kicks in when the cursor sits exactly on a quote char
• a leading count before an operator (e.g. 2dw) was captured eagerly and cleared the count text objects rely on later, breaking text-object grammar; the count is now captured lazily on the first digit typed after entering operator-pending mode
• deleting a surround pair shared between multiple selected regions could shift a sibling region onto the wrong (inner) pair after the first deletion; fixed by tracking already-consumed coordinate ranges and skipping any region whose anchor falls inside one, instead of shifting positions

Install

cargo install monster-rift

With syntax highlighting:

cargo install -F treesitter monster-rift

or install from source

git clone https://github.com/monster0506/rift
cd rift
cargo install -F treesitter --path .