Preserve terminal reply strings until their terminator while retaining bounded recovery for ambiguous legacy Alt-key input.
Related: #10256, #10657. Missing OSC prefixes and fragmented DA1 replies remain separate issues.
Split StdinBuffer's incomplete-sequence wait from the lone-ESC wait so SSH and PI_TUI_ESC_TIMEOUT can reassemble split Alt+Enter without delaying Escape or mouse/CSI buffering.
packages/tui/src/stdin-buffer.ts — in extractCompleteSequences, after finding \x1b\x1b as "complete" (legacy meta-key), check if the next character in the buffer would start a new escape sequence ([, ], O, P, _). If so, emit only the first \x1b and let the second ESC begin a new parse iteration.
packages/tui/test/stdin-buffer.test.ts — three new cases in the Kitty section:
- \x1b\x1b[27;129:3u (num_lock) splits into ["\x1b", "\x1b[27;129:3u"]
- \x1b\x1b[27;1:3u (no num_lock) splits into ["\x1b", "\x1b[27;1:3u"]
- \x1b\x1b alone (no following CSI) still emits as ["\x1b\x1b"] — preserves ctrl+alt+[
Adds StdinBuffer class (adapted from OpenTUI, MIT license) to split
batched stdin into individual sequences before they reach components.
This fixes key presses being dropped when batched with release events,
which commonly occurs over SSH due to network buffering.
- Each handleInput() call now receives a single event
- matchesKey() and isKeyRelease() work correctly without batching awareness
- Properly buffers incomplete escape sequences across chunks
- Handles bracketed paste mode
Addresses #538
