Terminal

Escape sequence

ESC = 0x1b

• Clear screen: ESC[2J
• Move cursor to the top left: ESC[H
• Get cursor position: ESC[6n => ESC[<col>;<row>R
  • You can try: echo -en '\033[6n'
• Get terminal window size:
  • Use struct winsize ws; ioctl(1, TIOCGWINSZ, &ws) == 0, or
  • move cursor to far position (e.g. ESC[999CESC[999B), then get cursor position

Referece

• ANSI escape code - Wikipedia
• エスケープシーケンス一覧
  • ESC [ <nn> n : DSR (Device Status Report), nn='6' => Return cursor position.
• Linux console - Wikipedia
• The TTY demystified (jp)
• Unix/端末 - Global Wiki

termios

• Serial Programming/termios - Wikibooks, open books for an open world
• c - Reading the Device Status Report ANSI escape sequence reply - Stack Overflow
  • term.c_lflag &=~ICANON; term.c_lflag &=~ECHO;
• 端末のエコービットを変える
  • stty --all

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