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Allow empty output sequences, and add a special NOP token which doesn't produce any output. This makes it possible to have translations which don't produce any output, suppressing any default translations.

This commit is contained in:
Albert Graef 2018-09-03 17:04:37 +02:00
parent fbbfabb41d
commit 7fbae6adb8
2 changed files with 33 additions and 5 deletions
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3
midizap.c
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@ -785,6 +785,9 @@ send_strokes(translation *tr, uint8_t portno, int status, int chan,
} else if (s->shift) {
// toggle shift status
shift = !shift;
} else if (!s->status) {
// do nothing (NOP)
;
} else {
if (s->recursive && depth >= MAX_DEPTH) {
char name[100];

35
readconfig.c
View File

@ -626,6 +626,8 @@ print_stroke(stroke *s, int mod, int step, int n_steps, int *steps, int val)
printf("%s/%c ", str, s->press ? 'D' : 'U');
} else if (s->shift) {
printf("SHIFT ");
} else if (!s->status) {
printf("NOP ");
} else {
int status = s->status & 0xf0;
int channel = (s->status & 0x0f) + 1;
@ -752,7 +754,7 @@ stroke **press_first_stroke;
stroke **release_first_stroke;
stroke **alt_press_stroke;
stroke **alt_release_stroke;
int is_keystroke, is_bidirectional, is_anyshift, is_midi, mode;
int is_keystroke, is_bidirectional, is_anyshift, is_midi, is_nop, mode;
char *current_translation;
char *key_name;
int first_release_stroke; // is this the first stroke of a release?
@ -796,6 +798,21 @@ append_shift(void)
last_stroke = s;
}
void
append_nop(void)
{
stroke *s = (stroke *)allocate(sizeof(stroke));
memset(s, 0, sizeof(stroke));
if (*first_stroke) {
last_stroke->next = s;
} else {
*first_stroke = s;
}
last_stroke = s;
is_nop = is_keystroke;
}
void
append_midi(int status, int data, int step, int n_steps, int *steps,
int swap, int incr, int recursive)
@ -1262,7 +1279,7 @@ start_translation(translation *tr, char *which_key)
}
current_translation = tr->name;
key_name = which_key;
is_keystroke = is_bidirectional = is_midi = is_anyshift = 0;
is_keystroke = is_bidirectional = is_midi = is_nop = is_anyshift = 0;
first_release_stroke = 0;
regular_key_down = 0;
modifier_count = 0;
@ -1539,6 +1556,7 @@ add_release(int all_keys)
//printf("add_release(%d)\n", all_keys);
release_modifiers(all_keys);
if (!all_keys) {
if (!*first_stroke) append_nop();
first_stroke = release_first_stroke;
if (is_midi) {
// walk the list of "press" strokes, find all "dirty" (as yet unhandled)
@ -1555,9 +1573,8 @@ add_release(int all_keys)
}
}
}
if (regular_key_down != 0) {
append_stroke(regular_key_down, 0);
}
if (regular_key_down) append_stroke(regular_key_down, 0);
if (all_keys && is_nop && !*first_stroke) append_nop();
regular_key_down = 0;
first_release_stroke = 1;
if (all_keys && is_bidirectional) {
@ -1569,6 +1586,8 @@ add_release(int all_keys)
append_stroke(s->keysym, s->press);
} else if (s->shift) {
append_shift();
} else if (!s->status) {
append_nop();
} else {
append_midi(s->status, s->data,
s->step, s->n_steps, s->steps,
@ -1586,6 +1605,8 @@ add_release(int all_keys)
append_stroke(s->keysym, s->press);
} else if (s->shift) {
append_shift();
} else if (!s->status) {
append_nop();
} else {
append_midi(s->status, s->data,
s->step, s->n_steps, s->steps,
@ -1601,6 +1622,8 @@ add_release(int all_keys)
append_stroke(s->keysym, s->press);
} else if (s->shift) {
append_shift();
} else if (!s->status) {
append_nop();
} else {
append_midi(s->status, s->data,
s->step, s->n_steps, s->steps,
@ -1869,6 +1892,8 @@ read_config_file(void)
add_keystroke(tok, PRESS_RELEASE);
else if (!strcmp(tok, "SHIFT"))
append_shift();
else if (!strcmp(tok, "NOP"))
append_nop();
else if (strncmp(tok, "XK", 2))
add_midi(tok);
else