diff options
Diffstat (limited to 'src/user/knob/key.c')
| -rw-r--r-- | src/user/knob/key.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/user/knob/key.c b/src/user/knob/key.c new file mode 100644 index 0000000..1506f3b --- /dev/null +++ b/src/user/knob/key.c @@ -0,0 +1,67 @@ +#include <keypack.h> + +static const char no_mod[] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, '\t','\n', 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + ' ', 0, 0, 0, 0, 0, 0, '\'', 0, 0, 0, 0, ',', '-', '.', '/', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 0, ';', 0, '=', 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '[','\\', ']', 0, 0, + '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', + 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 0, 0, 0, 0, 0 +}; + +static const char shifted[] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, '\t','\n', 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + ' ', 0, 0, 0, 0, 0, 0, '"', 0, 0, 0, 0, '<', '_', '>', '?', + ')', '!', '@', '#', '$', '%', '^', '&', '*', '(', 0, ':', 0, '+', 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '{', '|', '}', 0, 0, + '~', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', + 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 0, 0, 0, 0, 0 +}; + +static const char caps[] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, '\t','\n', 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + ' ', 0, 0, 0, 0, 0, 0, '\'', 0, 0, 0, 0, ',', '-', '.', '/', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 0, ';', 0, '=', 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '[','\\', ']', 0, 0, + '`', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', + 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 0, 0, 0, 0, 0 +}; + +static const char sh_caps[] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, '\t','\n', 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + ' ', 0, 0, 0, 0, 0, 0, '"', 0, 0, 0, 0, '<', '_', '>', '?', + ')', '!', '@', '#', '$', '%', '^', '&', '*', '(', 0, ':', 0, '+', 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '{', '|', '}', 0, 0, + '~', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', + 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 0, 0, 0, 0, 0 +}; + +static const char num[] = { + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '*', '+', '\n', '-', '.', '/' +}; + +__attribute__ ((pure)) +char key_to_char(struct key_packet kp) { + if (kp.key_id < 0x80) { + const char ch = (kp.modifiers & SHIFTS + ? kp.modifiers & CAPS + ? sh_caps : shifted + : kp.modifiers & CAPS + ? caps : no_mod)[kp.key_id]; + return ch ? kp.modifiers & ALTS ? 0x80 & ch : ch : 0; + } + + else if ((kp.modifiers & NUM) && ((kp.key_id & 0xf0) == 0xb0)) + return num[kp.key_id & 0x0f]; + + else + return 0; +}
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