static void build_key_data()

in speakup/keyhelp.c [49:98]

• 44 lines of code
• 15 McCabe index (conditional complexity)

static void build_key_data(void)
{
	u_char *kp, counters[MAXFUNCS], ch, ch1;
	u_short *p_key, key;
	int i, offset = 1;

	nstates = (int)(state_tbl[-1]);
	memset(counters, 0, sizeof(counters));
	memset(key_offsets, 0, sizeof(key_offsets));
	kp = state_tbl + nstates + 1;
	while (*kp++) {
		/* count occurrences of each function */
		for (i = 0; i < nstates; i++, kp++) {
			if (!*kp)
				continue;
			if ((state_tbl[i] & 16) != 0 && *kp == SPK_KEY)
				continue;
			counters[*kp]++;
		}
	}
	for (i = 0; i < MAXFUNCS; i++) {
		if (counters[i] == 0)
			continue;
		key_offsets[i] = offset;
		offset += (counters[i] + 1);
		if (offset >= MAXKEYS)
			break;
	}
/* leave counters set so high keycodes come first.
 * this is done so num pad and other extended keys maps are spoken before
 * the alpha with speakup type mapping.
 */
	kp = state_tbl + nstates + 1;
	while ((ch = *kp++)) {
		for (i = 0; i < nstates; i++) {
			ch1 = *kp++;
			if (!ch1)
				continue;
			if ((state_tbl[i] & 16) != 0 && ch1 == SPK_KEY)
				continue;
			key = (state_tbl[i] << 8) + ch;
			counters[ch1]--;
			offset = key_offsets[ch1];
			if (!offset)
				continue;
			p_key = key_data + offset + counters[ch1];
			*p_key = key;
		}
	}
}