Persistent subprocess model: gwbasic reads BASIC from stdin and writes output to stdout in piped mode (no banner, no prompts, unbuffered). Sentinel protocol (PRINT "<<<GWDONE>>>") delimits output per cell. Features: state persistence across cells, error detection and reporting, tab completion for GW-BASIC keywords, %reset/%timeout/%new magic commands, Ctrl+C forwarding, automatic process restart. Includes setup.py for pip install, kernel.json spec, install script, and 10-test smoke suite (all passing).
176 B
176 B