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_static uint8_t readmove(char);
_static uint8_t readmodifier(char);
_static uint8_t readtrans(const char *);
_static int writemoves(uint8_t *, int, char *);
_static void writetrans(uint8_t, char *);
_static uint8_t
readmove(char c)
{
switch (c) {
case 'U':
return _move_U;
case 'D':
return _move_D;
case 'R':
return _move_R;
case 'L':
return _move_L;
case 'F':
return _move_F;
case 'B':
return _move_B;
default:
return _error;
}
}
_static uint8_t
readmodifier(char c)
{
switch (c) {
case '1': /* Fallthrough */
case '2': /* Fallthrough */
case '3':
return c - '0' - 1;
case '\'':
return 2;
default:
return 0;
}
}
_static uint8_t
readtrans(const char *buf)
{
uint8_t t;
for (t = 0; t < 48; t++)
if (!strncmp(buf, transstr[t], 11))
return t;
DBG_LOG("readtrans error\n");
return _error;
}
_static int
writemoves(uint8_t *m, int n, char *buf)
{
int i;
size_t len;
const char *s;
char *b;
for (i = 0, b = buf; i < n; i++, b++) {
s = movestr[m[i]];
len = strlen(s);
memcpy(b, s, len);
b += len;
*b = ' ';
}
if (b != buf)
b--; /* Remove last space */
*b = '\0';
return b - buf;
}
_static void
writetrans(uint8_t t, char *buf)
{
if (t >= 48)
memcpy(buf, "error trans", 11);
else
memcpy(buf, transstr[t], 11);
buf[11] = '\0';
}
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