Terminal Emulator Basics in Golang
summary
Covers the Unix TTY subsystem history and shows a working Go terminal emulator that attaches bash to a pseudo‑TTY using the pty package, writes keystrokes to the pty master, and reads output back into a rotating 10-line buffer. Implements two goroutines for input and UI refresh (about 100ms refresh), handles Enter and rune callbacks, and demonstrates running foreground programs. Works but feels glitchy and deliberately omits ANSI escape parsing, full special‑key handling and signal interrupts.
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chapters (6)
- 0:00Terminal emulator basics
- 1:17Linux TTY history
- 8:25Basic terminal in Go
- 17:33Reading keyboard input
- 27:27Improving terminal output
- 40:59Limitations and next steps
