static void print_key(TermKey *tk, TermKeyKey *key)
{
switch(key->type) {
case TERMKEY_TYPE_UNICODE:
fprintf(stderr, "Unicode codepoint=U+%04lx utf8='%s'", key->code.codepoint, key->utf8);
break;
case TERMKEY_TYPE_FUNCTION:
fprintf(stderr, "Function F%d", key->code.number);
break;
case TERMKEY_TYPE_KEYSYM:
fprintf(stderr, "Keysym sym=%d(%s)", key->code.sym, termkey_get_keyname(tk, key->code.sym));
break;
case TERMKEY_TYPE_MOUSE:
{
TermKeyMouseEvent ev;
int button, line, col;
termkey_interpret_mouse(tk, key, &ev, &button, &line, &col);
fprintf(stderr, "Mouse ev=%d button=%d pos=(%d,%d)\n", ev, button, line, col);
}
break;
case TERMKEY_TYPE_POSITION:
{
int line, col;
termkey_interpret_position(tk, key, &line, &col);
fprintf(stderr, "Position report pos=(%d,%d)\n", line, col);
}
break;
case TERMKEY_TYPE_MODEREPORT:
{
int initial, mode, value;
termkey_interpret_modereport(tk, key, &initial, &mode, &value);
fprintf(stderr, "Mode report mode=%s %d val=%d\n", initial == '?' ? "DEC" : "ANSI", mode, value);
}
break;
case TERMKEY_TYPE_DCS:
fprintf(stderr, "Device Control String");
break;
case TERMKEY_TYPE_OSC:
fprintf(stderr, "Operating System Control");
break;
case TERMKEY_TYPE_UNKNOWN_CSI:
fprintf(stderr, "unknown CSI\n");
break;
}
int m = key->modifiers;
fprintf(stderr, " mod=%s%s%s+%02x",
(m & TERMKEY_KEYMOD_CTRL ? "C" : ""),
(m & TERMKEY_KEYMOD_ALT ? "A" : ""),
(m & TERMKEY_KEYMOD_SHIFT ? "S" : ""),
m & ~(TERMKEY_KEYMOD_CTRL|TERMKEY_KEYMOD_ALT|TERMKEY_KEYMOD_SHIFT));
}
size_t termkey_strfkey(TermKey *tk, char *buffer, size_t len, TermKeyKey *key, TermKeyFormat format)
{
size_t pos = 0;
size_t l = 0;
struct modnames *mods = &modnames[!!(format & TERMKEY_FORMAT_LONGMOD) +
!!(format & TERMKEY_FORMAT_ALTISMETA) * 2 +
!!(format & TERMKEY_FORMAT_LOWERMOD) * 4];
int wrapbracket = (format & TERMKEY_FORMAT_WRAPBRACKET) &&
(key->type != TERMKEY_TYPE_UNICODE || key->modifiers != 0);
char sep = (format & TERMKEY_FORMAT_SPACEMOD) ? ' ' : '-';
if(format & TERMKEY_FORMAT_CARETCTRL &&
key->type == TERMKEY_TYPE_UNICODE &&
key->modifiers == TERMKEY_KEYMOD_CTRL) {
long codepoint = key->code.codepoint;
// Handle some of the special casesfirst
if(codepoint >= 'a' && codepoint <= 'z') {
l = snprintf(buffer + pos, len - pos, wrapbracket ? "<^%c>" : "^%c", (char)codepoint - 0x20);
if(l <= 0) return pos;
pos += l;
return pos;
}
else if((codepoint >= '@' && codepoint < 'A') ||
(codepoint > 'Z' && codepoint <= '_')) {
l = snprintf(buffer + pos, len - pos, wrapbracket ? "<^%c>" : "^%c", (char)codepoint);
if(l <= 0) return pos;
pos += l;
return pos;
}
}
if(wrapbracket) {
l = snprintf(buffer + pos, len - pos, "<");
if(l <= 0) return pos;
pos += l;
}
if(key->modifiers & TERMKEY_KEYMOD_ALT) {
l = snprintf(buffer + pos, len - pos, "%s%c", mods->alt, sep);
if(l <= 0) return pos;
pos += l;
}
if(key->modifiers & TERMKEY_KEYMOD_CTRL) {
l = snprintf(buffer + pos, len - pos, "%s%c", mods->ctrl, sep);
if(l <= 0) return pos;
pos += l;
}
if(key->modifiers & TERMKEY_KEYMOD_SHIFT) {
l = snprintf(buffer + pos, len - pos, "%s%c", mods->shift, sep);
if(l <= 0) return pos;
pos += l;
}
switch(key->type) {
case TERMKEY_TYPE_UNICODE:
if(!key->utf8[0]) // In case of user-supplied key structures
fill_utf8(key);
l = snprintf(buffer + pos, len - pos, "%s", key->utf8);
break;
case TERMKEY_TYPE_KEYSYM:
{
const char *name = termkey_get_keyname(tk, key->code.sym);
if(format & TERMKEY_FORMAT_LOWERSPACE)
l = snprint_cameltospaces(buffer + pos, len - pos, name);
else
l = snprintf(buffer + pos, len - pos, "%s", name);
}
break;
case TERMKEY_TYPE_FUNCTION:
l = snprintf(buffer + pos, len - pos, "%c%d",
(format & TERMKEY_FORMAT_LOWERSPACE ? 'f' : 'F'), key->code.number);
break;
case TERMKEY_TYPE_MOUSE:
{
TermKeyMouseEvent ev;
int button;
int line, col;
termkey_interpret_mouse(tk, key, &ev, &button, &line, &col);
static const char *evnames[] = { "Unknown", "Press", "Drag", "Release" };
l = snprintf(buffer + pos, len - pos, "Mouse%s(%d)",
evnames[ev], button);
if(format & TERMKEY_FORMAT_MOUSE_POS) {
if(l <= 0) return pos;
pos += l;
l = snprintf(buffer + pos, len - pos, " @ (%u,%u)", col, line);
}
}
break;
case TERMKEY_TYPE_POSITION:
l = snprintf(buffer + pos, len - pos, "Position");
break;
case TERMKEY_TYPE_MODEREPORT:
{
int initial, mode, value;
termkey_interpret_modereport(tk, key, &initial, &mode, &value);
if(initial)
l = snprintf(buffer + pos, len - pos, "Mode(%c%d=%d)", initial, mode, value);
else
l = snprintf(buffer + pos, len - pos, "Mode(%d=%d)", mode, value);
}
case TERMKEY_TYPE_UNKNOWN_CSI:
l = snprintf(buffer + pos, len - pos, "CSI %c", key->code.number & 0xff);
break;
}
if(l <= 0) return pos;
pos += l;
if(wrapbracket) {
l = snprintf(buffer + pos, len - pos, ">");
if(l <= 0) return pos;
pos += l;
}
return pos;
}
int main(int argc, char *argv[])
{
TERMKEY_CHECK_VERSION;
int mouse = 0;
int mouse_proto = 0;
TermKeyFormat format = TERMKEY_FORMAT_VIM;
char buffer[50];
TermKey *tk;
int opt;
while((opt = getopt(argc, argv, "m::p:")) != -1) {
switch(opt) {
case 'm':
if(optarg)
mouse = atoi(optarg);
else
mouse = 1000;
break;
case 'p':
mouse_proto = atoi(optarg);
break;
default:
fprintf(stderr, "Usage: %s [-m]\n", argv[0]);
return 1;
}
}
tk = termkey_new(0, TERMKEY_FLAG_SPACESYMBOL|TERMKEY_FLAG_CTRLC);
if(!tk) {
fprintf(stderr, "Cannot allocate termkey instance\n");
exit(1);
}
TermKeyResult ret;
TermKeyKey key;
if(mouse) {
printf("\033[?%dhMouse mode active\n", mouse);
if(mouse_proto)
printf("\033[?%dh", mouse_proto);
}
while((ret = termkey_waitkey(tk, &key)) != TERMKEY_RES_EOF) {
if(ret == TERMKEY_RES_KEY) {
termkey_strfkey(tk, buffer, sizeof buffer, &key, format);
if(key.type == TERMKEY_TYPE_MOUSE) {
int line, col;
termkey_interpret_mouse(tk, &key, NULL, NULL, &line, &col);
printf("%s at line=%d, col=%d)\n", buffer, line, col);
}
else if(key.type == TERMKEY_TYPE_POSITION) {
int line, col;
termkey_interpret_position(tk, &key, &line, &col);
printf("Cursor position report at line=%d, col=%d)\n", line, col);
}
else {
printf("%s\n", buffer);
}
if(key.type == TERMKEY_TYPE_UNICODE &&
key.modifiers & TERMKEY_KEYMOD_CTRL &&
(key.code.codepoint == 'C' || key.code.codepoint == 'c'))
break;
if(key.type == TERMKEY_TYPE_UNICODE &&
key.modifiers == 0 &&
key.code.codepoint == '?') {
printf("\033[6n");
fflush(stdout);
}
}
else if(ret == TERMKEY_RES_ERROR) {
if(errno != EINTR) {
perror("termkey_waitkey");
break;
}
printf("Interrupted by signal\n");
}
}
if(mouse)
printf("\033[?%dlMouse mode deactivated\n", mouse);
termkey_destroy(tk);
}