int pp_ifndef(char *p)
{
parse_id(p, m_id_buf);
if (get_symbol_index(m_id_buf) < 0) {
return XPP_OUTP;
}
else {
return XPP_SKIP;
}
}
void pp_undef(char *p)
{
int si;
p = parse_id(p, m_id_buf);
si = get_symbol_index(m_id_buf);
if (si >= 0) {
strcpy(m_symbol[si].id, XPP_UNDEFINED);
m_symbol[si].val[0] = 0; // empty str
}
}
void pp_define(char *p, bool ww)
{
int i, si;
p = parse_id(p, m_id_buf);
si = get_symbol_index(m_id_buf);
if (si < 0) {
si = m_symbol_len; // not defined so add it
strcpy(m_symbol[si].id, m_id_buf);
m_symbol[si].val[0] = 0; // default val is empty str
++m_symbol_len;
} // else if defined change its value
if (!is_line_end(*p)) {
skip_white_space(&p);
i = 0;
while (!is_line_end(*p)) { // get pp value, to end of line
m_symbol[si].val[i++] = *p++;
}
m_symbol[si].val[i] = 0; // terminate string
}
m_symbol[si].ww = ww; // to use whole-word search or not
}
/**
* Get a quantizer by its left context symbol
*/
struct quantizer_t *get_cond_quantizer(struct cond_quantizer_list_t *list, uint32_t column, symbol_t prev) {
uint32_t idx = get_symbol_index(list->input_alphabets[column], prev);
if (idx != ALPHABET_SYMBOL_NOT_FOUND)
return get_cond_quantizer_indexed(list, column, idx);
return NULL;
}
/**
* Get a quantizer by its left context symbol
*/
struct quantizer_t *get_cond_quantizer(struct cond_quantizer_list_t *list, uint32_t column, symbol_t prev) {
uint32_t idx = get_symbol_index(list->input_alphabets[column], prev);
if (idx != ALPHABET_SYMBOL_NOT_FOUND)
return get_cond_quantizer_indexed(list, column, idx);
return NULL;
}
/**
* Stores the given quantizers at the appropriate index corresponding to the left context symbol given
* for the specific column
*/
void store_cond_quantizers(struct quantizer_t *restrict lo, struct quantizer_t *restrict hi, double ratio, struct cond_quantizer_list_t *list, uint32_t column, symbol_t prev) {
uint32_t idx = get_symbol_index(list->input_alphabets[column], prev);
store_cond_quantizers_indexed(lo, hi, ratio, list, column, idx);
}
/**
* Stores the given quantizers directly at the given index based on the previous context symbol. Faster when
* we know what the previous index was in addition to what the previous symbol was
*/
void store_cond_quantizers_indexed(struct quantizer_t *restrict lo, struct quantizer_t *restrict hi, double ratio, struct cond_quantizer_list_t *list, uint32_t column, uint32_t idx) {
list->q[column][2*idx] = lo;
list->q[column][2*idx + 1] = hi;
list->ratio[column][idx] = ratio;
list->qratio[column][idx] = (uint8_t) (ratio * 128.);
}
/**
