- *ref_id = *beg = *end = -1;
- name_end = l = strlen(str);
- s = (char*)malloc(l+1);
- // remove space
- for (i = k = 0; i < l; ++i)
- if (!isspace(str[i])) s[k++] = str[i];
- s[k] = 0; l = k;
- // determine the sequence name
- for (i = l - 1; i >= 0; --i) if (s[i] == ':') break; // look for colon from the end
- if (i >= 0) name_end = i;
- if (name_end < l) { // check if this is really the end
- int n_hyphen = 0;
- for (i = name_end + 1; i < l; ++i) {
- if (s[i] == '-') ++n_hyphen;
- else if (!isdigit(s[i]) && s[i] != ',') break;
- }
- if (i < l || n_hyphen > 1) name_end = l; // malformated region string; then take str as the name
- s[name_end] = 0;
- iter = kh_get(s, h, s);
- if (iter == kh_end(h)) { // cannot find the sequence name
- iter = kh_get(s, h, str); // try str as the name
- if (iter == kh_end(h)) {
- if (bam_verbose >= 2) fprintf(pysamerr, "[%s] fail to determine the sequence name.\n", __func__);
- free(s); return -1;
- } else s[name_end] = ':', name_end = l;
- }
- } else iter = kh_get(s, h, str);
- *ref_id = kh_val(h, iter);
- // parse the interval
- if (name_end < l) {
- for (i = k = name_end + 1; i < l; ++i)
- if (s[i] != ',') s[k++] = s[i];
- s[k] = 0;
- *beg = atoi(s + name_end + 1);
- for (i = name_end + 1; i != k; ++i) if (s[i] == '-') break;
- *end = i < k? atoi(s + i + 1) : 1<<29;
- if (*beg > 0) --*beg;
- } else *beg = 0, *end = 1<<29;
+ l = strlen(str);
+ p = s = (char*)malloc(l+1);
+ /* squeeze out "," */
+ for (i = k = 0; i != l; ++i)
+ if (str[i] != ',' && !isspace(str[i])) s[k++] = str[i];
+ s[k] = 0;
+ for (i = 0; i != k; ++i) if (s[i] == ':') break;
+ s[i] = 0;
+ iter = kh_get(s, h, s); /* get the ref_id */
+ if (iter == kh_end(h)) { // name not found
+ *ref_id = -1; free(s);
+ return -1;
+ }
+ *ref_id = kh_value(h, iter);
+ if (i == k) { /* dump the whole sequence */
+ *begin = 0; *end = 1<<29; free(s);
+ return 0;
+ }
+ for (p = s + i + 1; i != k; ++i) if (s[i] == '-') break;
+ *begin = atoi(p);
+ if (i < k) {
+ p = s + i + 1;
+ *end = atoi(p);
+ } else *end = 1<<29;
+ if (*begin > 0) --*begin;