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Sequence Reference
A searchable index of every VT sequence Otty interprets, sorted by category and final byte / mnemonic. Cells in the Otty column: ✓ implemented, ◐ partial, ☐ not yet.
ESC
| Sequence | Mnemonic | Description | Otty |
|---|---|---|---|
ESC # 8 | DECALN | Screen Alignment Display | ✓ |
ESC 7 | DECSC | Save Cursor | ✓ |
ESC 8 | DECRC | Restore Cursor | ✓ |
ESC = | DECKPAM | Keypad Application Mode | ✓ |
ESC > | DECKPNM | Keypad Numeric Mode | ✓ |
ESC D | IND | Index (down one line) | ✓ |
ESC E | NEL | Next Line | ✓ |
ESC M | RI | Reverse Index | ✓ |
ESC H | HTS | Set Tab Stop | ✓ |
ESC c | RIS | Full Reset | ✓ |
CSI
| Sequence | Mnemonic | Description | Otty |
|---|---|---|---|
CSI <n> A | CUU | Cursor Up | ✓ |
CSI <n> B | CUD | Cursor Down | ✓ |
CSI <n> C | CUF | Cursor Forward | ✓ |
CSI <n> D | CUB | Cursor Back | ✓ |
CSI <r>;<c> H | CUP | Cursor Position | ✓ |
CSI 5 n | DSR | Device Status Report → CSI 0 n | ✓ |
CSI 6 n | DSR | Cursor Position Report → CSI <row>;<col> R (DECXCPR CSI ? 6 n not implemented) | ◐ |
CSI <n> J | ED | Erase in Display (n=0/1/2/3 standard, n=22 kitty scroll-then-erase) | ✓ |
CSI ? <n> J | DECSED | Selective Erase in Display (skips DECSCA-protected cells) | ✓ |
CSI <n> K | EL | Erase in Line | ✓ |
CSI ? <n> K | DECSEL | Selective Erase in Line (skips protected cells) | ✓ |
CSI <p>;… m | SGR | Select Graphic Rendition | ✓ |
CSI <n> @ | ICH | Insert Characters | ✓ |
CSI <n> L | IL | Insert Lines | ✓ |
CSI <n> M | DL | Delete Lines | ✓ |
CSI <n> P | DCH | Delete Characters | ✓ |
CSI ? <n> h | DECSET | Set DEC Private Mode | ✓ |
CSI ? <n> l | DECRST | Reset DEC Private Mode | ✓ |
CSI ! p | DECSTR | Soft Terminal Reset | ✓ |
CSI <n> " q | DECSCA | Select Character Protection Attribute | ✓ |
CSI <n> SP q | DECSCUSR | Set Cursor Style | ✓ |
CSI > 1 u | — | Push Kitty keyboard flags | ✓ |
CSI < u | — | Pop Kitty keyboard flags | ✓ |
CSI [Pm] # P | XTPUSHCOLORS | Push palette snapshot | ✓ |
CSI [Pm] # Q | XTPOPCOLORS | Restore palette snapshot | ✓ |
CSI # R | XTREPORTCOLORS | Report color stack depth | ✓ |
CSI <n> S | SU | Scroll Up | ✓ |
CSI <n> T | SD | Scroll Down | ✓ |
CSI <Ps> t | XTWINOPS | Window manip / size reports — 14/16 t pixel sizes answered, 18 t (chars) intentionally not, window-acting ops ignored | ◐ |
OSC
| Sequence | Description | Otty |
|---|---|---|
| OSC 0 / 2 | Set window + icon title | ✓ |
| OSC 7 | Report current working directory | ✓ |
| OSC 8 | Hyperlink | ✓ |
| OSC 4 | Palette set / query (256-color) | ✓ |
| OSC 5 | Special-color set (bold / underline / blink / reverse / italic) | ✓ parsed (underline applied) |
| OSC 9 | Notification (iTerm-style) | ✓ |
| OSC 10 / 11 / 12 | Foreground / background / cursor color | ✓ |
| OSC 13 / 14 | Mouse pointer fg / bg | ✓ parsed (no macOS effect) |
| OSC 17 / 19 | Selection background / foreground | ✓ |
| OSC 22 | Mouse cursor shape (kitty / xterm) | ✓ |
| OSC 52 | Set / read clipboard (opt-in) | ✓ |
| OSC 99 | Kitty desktop-notification protocol (id, urgency, base64, chunked) | ✓ |
| OSC 104 | Palette reset (256-color) | ✓ |
| OSC 105 | Reset special colors | ✓ |
| OSC 110 / 111 / 112 | Reset fg / bg / cursor | ✓ |
| OSC 117 / 119 | Reset selection bg / fg | ✓ |
| OSC 133 | Prompt mark (FTCS / shell integration) | ✓ |
| OSC 777 | Notification (urxvt-style, with title) | ✓ |
| OSC 1337 | Inline image (iTerm2) | ✓ |
| OSC 7501 | Program status (state, progress, message) | ✓ |
Control (C0)
| Byte | Mnemonic | Name |
|---|---|---|
0x07 | BEL | Bell |
0x08 | BS | Backspace |
0x09 | HT | Horizontal Tab |
0x0A | LF | Line Feed |
0x0B | VT | Vertical Tab |
0x0C | FF | Form Feed |
0x0D | CR | Carriage Return |
0x0E | SO | Shift Out |
0x0F | SI | Shift In |
0x18 | CAN | Cancel |
0x1A | SUB | Substitute |
0x1B | ESC | Escape |
0x7F | DEL | Delete |
Modes (DEC private)
A selected subset:
| Mode | Description |
|---|---|
?1 | Application cursor keys |
?5 | Reverse video |
?6 | Origin mode (DECOM) |
?7 | Auto-wrap (DECAWM) |
?12 | Blinking cursor |
?25 | Cursor visible (DECTCEM) |
?47 | Switch to alternate screen (legacy) |
?1000 | Mouse: send X/Y on button event |
?1002 | Mouse: cell motion tracking |
?1003 | Mouse: all motion tracking |
?1004 | Focus reporting (CSI I / CSI O) |
?1006 | Mouse: SGR-style reporting |
?1047 | Switch to alternate screen (clears it on exit) |
?1049 | Switch to alternate screen + save cursor |
?2004 | Bracketed paste |
?2026 | Synchronized output |
?2031 | Color-scheme update notifications |
Set / unset with DECSET / DECRST. For a cross-terminal support matrix see Terminal Comparison.
DCS
| Sequence | Name | Purpose | Support |
|---|---|---|---|
DCS $ q SP q ST | DECRQSS | Query current cursor style → DCS 1 $ r Ps SP q ST | ✓ |
DCS $ q … ST | DECRQSS (other targets) | Query SGR / scrolling region / … | ❌ |
DCS + q … ST | XTGETTCAP | Terminfo capability query | ❌ |
Kitty graphics (DCS-class)
Implemented via the Kitty graphics protocol. The full action / parameter table lives in that page.