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Mem should set the mate cigar tag. #138

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Merged
merged 1 commit into from
Jul 30, 2017
Merged

Mem should set the mate cigar tag. #138

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23 changes: 15 additions & 8 deletions bwamem.c
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Original file line number Diff line number Diff line change
Expand Up @@ -809,6 +809,19 @@ static inline int get_rlen(int n_cigar, const uint32_t *cigar)
return l;
}

static inline void add_cigar(const mem_opt_t *opt, mem_aln_t *p, kstring_t *str, int which)
{
int i;
if (p->n_cigar) { // aligned
for (i = 0; i < p->n_cigar; ++i) {
int c = p->cigar[i]&0xf;
if (!(opt->flag&MEM_F_SOFTCLIP) && !p->is_alt && (c == 3 || c == 4))
c = which? 4 : 3; // use hard clipping for supplementary alignments
kputw(p->cigar[i]>>4, str); kputc("MIDSH"[c], str);
}
} else kputc('*', str); // having a coordinate but unaligned (e.g. when copy_mate is true)
}

void mem_aln2sam(const mem_opt_t *opt, const bntseq_t *bns, kstring_t *str, bseq1_t *s, int n, const mem_aln_t *list, int which, const mem_aln_t *m_)
{
int i, l_name;
Expand All @@ -835,14 +848,7 @@ void mem_aln2sam(const mem_opt_t *opt, const bntseq_t *bns, kstring_t *str, bseq
kputs(bns->anns[p->rid].name, str); kputc('\t', str); // RNAME
kputl(p->pos + 1, str); kputc('\t', str); // POS
kputw(p->mapq, str); kputc('\t', str); // MAPQ
if (p->n_cigar) { // aligned
for (i = 0; i < p->n_cigar; ++i) {
int c = p->cigar[i]&0xf;
if (!(opt->flag&MEM_F_SOFTCLIP) && !p->is_alt && (c == 3 || c == 4))
c = which? 4 : 3; // use hard clipping for supplementary alignments
kputw(p->cigar[i]>>4, str); kputc("MIDSH"[c], str);
}
} else kputc('*', str); // having a coordinate but unaligned (e.g. when copy_mate is true)
add_cigar(opt, p, str, which);
} else kputsn("*\t0\t0\t*", 7, str); // without coordinte
kputc('\t', str);

Expand Down Expand Up @@ -899,6 +905,7 @@ void mem_aln2sam(const mem_opt_t *opt, const bntseq_t *bns, kstring_t *str, bseq
kputsn("\tNM:i:", 6, str); kputw(p->NM, str);
kputsn("\tMD:Z:", 6, str); kputs((char*)(p->cigar + p->n_cigar), str);
}
if (m->n_cigar) { kputsn("\tMC:Z:", 6, str); add_cigar(opt, m, str, which); }
if (p->score >= 0) { kputsn("\tAS:i:", 6, str); kputw(p->score, str); }
if (p->sub >= 0) { kputsn("\tXS:i:", 6, str); kputw(p->sub, str); }
if (bwa_rg_id[0]) { kputsn("\tRG:Z:", 6, str); kputs(bwa_rg_id, str); }
Expand Down
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