npa/npa_config.h

   1 /*
   2  * only basic esc seq soup for keyboard input, "ansi/ecma-48 + VTXXX + xterm"
   3  * utf8 terminal configured for 2 bytes c1 codes, hence the csi is the esc
   4  * ascii byte followed by the '[' ascii char. to account for any unknown esc
   5  * seq, we have a global timeout.
   6  * you have very good documentation on VTXXX (52/100/5xx) on the web, that
   7  * to understand well what is a terminal and from "where" all that comes
   8  * from.
   9  *
  10  * or 1 utf8 char (up to 4 bytes and not 6 like in legacy iso)
  11  */
  12 struct tty_bind_t {
  13         u8 *c;                  /* utf8 char, up to 4 bytes, or esc seq */
  14         u8 sz;                  /* size of whatever is c */
  15         u8 *name;               /* friendly name */
  16         void (*cmd)(void);      /* bound cmd */
  17 };
  18 #define INPUT_ESC_SEQ_TIMEOUT_SECS_N 1
  19 #define TTY_BIND(x, y, z) {.c = x, .sz = (sizeof(x) - 1), .name = y, .cmd = z}
  20 struct tty_bind_t tty_binds[] = {
  21         TTY_BIND("q", "letter q", cmd_quit),
  22         TTY_BIND("i", "letter i", cmd_info),
  23         TTY_BIND("\x1b[D", "arrow left", cmd_rewind),
  24         TTY_BIND("\x1b[C", "arrow right", cmd_fastforward),
  25         TTY_BIND("\x1b[A", "arrow up", cmd_vol_up),
  26         TTY_BIND("\x1b[B", "arrow down", cmd_vol_down),
  27         TTY_BIND("]", "closing square bracket", cmd_vol_up_small),
  28         TTY_BIND("[", "opening square bracket", cmd_vol_down_small),
  29         TTY_BIND("\x1b[H", "home", cmd_rewind_big),
  30         TTY_BIND("\x1b[4~", "end", cmd_fastforward_big),
  31         TTY_BIND("m", "letter m", cmd_mute),
  32         TTY_BIND(" ", "space", cmd_pause)
  33 };
  34 #undef TTY_BIND
  35
  36 #define VOL_DELTA 0.1 /* from 0.0 to 1.0 */
  37 #define VOL_DELTA_SMALL 0.01 /* from 0.0 to 1.0 */
  38 #define SEEK_DELTA INT64_C(10) /* 10 seconds */
  39 #define SEEK_DELTA_BIG (INT64_C(4) * INT64_C(60)) /* 4 minutes */