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1 #include <stdlib.h>
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2 #include <string.h>
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3 #include "sample.h"
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4 #include "khash.h"
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5 KHASH_MAP_INIT_STR(sm, int)
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6
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7 bam_sample_t *bam_smpl_init(void)
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8 {
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9 bam_sample_t *s;
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10 s = calloc(1, sizeof(bam_sample_t));
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11 s->rg2smid = kh_init(sm);
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12 s->sm2id = kh_init(sm);
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13 return s;
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14 }
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15
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16 void bam_smpl_destroy(bam_sample_t *sm)
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17 {
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18 int i;
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19 khint_t k;
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20 khash_t(sm) *rg2smid = (khash_t(sm)*)sm->rg2smid;
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21 if (sm == 0) return;
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22 for (i = 0; i < sm->n; ++i) free(sm->smpl[i]);
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23 free(sm->smpl);
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24 for (k = kh_begin(rg2smid); k != kh_end(rg2smid); ++k)
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25 if (kh_exist(rg2smid, k)) free((char*)kh_key(rg2smid, k));
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26 kh_destroy(sm, sm->rg2smid);
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27 kh_destroy(sm, sm->sm2id);
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28 free(sm);
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29 }
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30
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31 static void add_pair(bam_sample_t *sm, khash_t(sm) *sm2id, const char *key, const char *val)
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32 {
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33 khint_t k_rg, k_sm;
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34 int ret;
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35 khash_t(sm) *rg2smid = (khash_t(sm)*)sm->rg2smid;
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36 k_rg = kh_get(sm, rg2smid, key);
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37 if (k_rg != kh_end(rg2smid)) return; // duplicated @RG-ID
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38 k_rg = kh_put(sm, rg2smid, strdup(key), &ret);
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39 k_sm = kh_get(sm, sm2id, val);
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40 if (k_sm == kh_end(sm2id)) { // absent
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41 if (sm->n == sm->m) {
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42 sm->m = sm->m? sm->m<<1 : 1;
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43 sm->smpl = realloc(sm->smpl, sizeof(void*) * sm->m);
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44 }
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45 sm->smpl[sm->n] = strdup(val);
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46 k_sm = kh_put(sm, sm2id, sm->smpl[sm->n], &ret);
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47 kh_val(sm2id, k_sm) = sm->n++;
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48 }
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49 kh_val(rg2smid, k_rg) = kh_val(sm2id, k_sm);
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50 }
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51
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52 int bam_smpl_add(bam_sample_t *sm, const char *fn, const char *txt)
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53 {
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54 const char *p = txt, *q, *r;
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55 kstring_t buf;
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56 int n = 0;
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57 khash_t(sm) *sm2id = (khash_t(sm)*)sm->sm2id;
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58 memset(&buf, 0, sizeof(kstring_t));
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59 while ((q = strstr(p, "@RG")) != 0) {
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60 p = q + 3;
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61 r = q = 0;
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62 if ((q = strstr(p, "\tID:")) != 0) q += 4;
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63 if ((r = strstr(p, "\tSM:")) != 0) r += 4;
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64 if (r && q) {
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65 char *u, *v;
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66 int oq, or;
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67 for (u = (char*)q; *u && *u != '\t' && *u != '\n'; ++u);
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68 for (v = (char*)r; *v && *v != '\t' && *v != '\n'; ++v);
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69 oq = *u; or = *v; *u = *v = '\0';
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70 buf.l = 0; kputs(fn, &buf); kputc('/', &buf); kputs(q, &buf);
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71 add_pair(sm, sm2id, buf.s, r);
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72 *u = oq; *v = or;
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73 } else break;
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74 p = q > r? q : r;
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75 ++n;
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76 }
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77 if (n == 0) add_pair(sm, sm2id, fn, fn);
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78 // add_pair(sm, sm2id, fn, fn);
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79 free(buf.s);
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80 return 0;
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81 }
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82
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83 int bam_smpl_rg2smid(const bam_sample_t *sm, const char *fn, const char *rg, kstring_t *str)
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84 {
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85 khint_t k;
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86 khash_t(sm) *rg2smid = (khash_t(sm)*)sm->rg2smid;
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87 if (rg) {
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88 str->l = 0;
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89 kputs(fn, str); kputc('/', str); kputs(rg, str);
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90 k = kh_get(sm, rg2smid, str->s);
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91 } else k = kh_get(sm, rg2smid, fn);
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92 return k == kh_end(rg2smid)? -1 : kh_val(rg2smid, k);
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93 }
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