SDB_IPI Rangstr json_find (const char *s, Rangstr *rs) {
#define RESFIXSZ 1024
RangstrType resfix[RESFIXSZ] = {0};
RangstrType *res = resfix;
int i, j, n, len, ret;
Rangstr rsn;
if (!s) {
return rangstr_null ();
}
len = strlen (s);
if (len > RESFIXSZ) {
res = calloc (len + 1, sizeof (RangstrType));
if (!res) {
eprintf ("Cannot allocate %d byte(s)\n", len + 1);
return rangstr_null ();
}
}
ret = js0n ((const unsigned char *)s, len, res);
#define PFREE(x) if (x && x != resfix) free (x)
if (ret > 0) {
PFREE (res);
return rangstr_null ();
}
if (*s == '[') {
n = rangstr_int (rs);
if (n < 0) {
goto beach;
}
for (i = j = 0; res[i] && j < n; i += 2, j++);
if (!res[i]) {
goto beach;
}
rsn = rangstr_news (s, res, i);
PFREE (res);
return rsn;
} else {
for (i=0; res[i]; i+=4) {
Rangstr rsn = rangstr_news (s, res, i);
if (!rangstr_cmp (rs, &rsn)) {
rsn = rangstr_news (s, res, i+2);
PFREE (res);
return rsn;
}
}
}
beach:
PFREE (res);
return rangstr_null ();
}
Rangstr json_find (const char *s, Rangstr *rs) {
#define RESFIXSZ 1024
RangstrType resfix[RESFIXSZ], *res = NULL;
int i, j, n, len, ret;
Rangstr rsn;
if (!s) return rangstr_null ();
len = strlen (s);
res = (len<RESFIXSZ)? resfix: malloc (sizeof (RangstrType)* (len+1));
if (!res) {
eprintf ("Cannot allocate %d bytes\n", len+1);
return rangstr_null ();
}
for (i=0; i<len; i++)
res[i] = 0;
ret = js0n ((const unsigned char *)s, len, res);
#define PFREE(x) if (x&&x!=resfix) free (x)
if (ret>0) {
PFREE (res);
return rangstr_null ();
}
if (*s=='[') {
n = rangstr_int (rs);
n++;
if (n<0) goto beach;
for (i=j=0; res[i] && j<n; i+=2, j++);
if (j<n) goto beach;
rsn = rangstr_news (s, res, i-2);
PFREE (res);
return rsn;
} else {
for (i=0; res[i]; i+=4) {
Rangstr rsn = rangstr_news (s, res, i);
if (!rangstr_cmp (rs, &rsn)) {
rsn = rangstr_news (s, res, i+2);
PFREE (res);
return rsn;
}
}
}
beach:
PFREE (res);
return rangstr_null ();
}