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r985: fix bug due to the lack of _pri contigs d6

This commit is contained in:
Heng Li 2014-11-13 12:12:41 -05:00
parent c5fe18438a
commit 904afefbc6
1 changed files with 22 additions and 10 deletions
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32
bwa-postalt.js
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@ -178,7 +178,7 @@ function parse_hit(s, opt)
return h;
}
function print_buffer(buf2, fp_hla, hla)
function print_buffer(buf2, fp_hla, hla) // output alignments
{
if (buf2.length == 0) return;
for (var i = 0; i < buf2.length; ++i)
@ -192,21 +192,34 @@ function print_buffer(buf2, fp_hla, hla)
}
}
function collect_hla_hits(idx, ctg, start, end, hla) // collect reads hit to HLA genes
{
var m, ofunc = idx[ctg];
if (ofunc == null) return;
var ovlp_alt = ofunc(start, end);
for (var i = 0; i < ovlp_alt.length; ++i)
if ((m = /^(HLA-[^\s\*]+)\*\d+/.exec(ovlp_alt[i][2])) != null)
hla[m[1]] = true;
}
function bwa_postalt(args)
{
var version = "r985";
var c, opt = { a:1, b:4, o:6, e:1, min_mapq:10, min_sc:90, max_nm_sc:10, min_pa_ratio:1 };
while ((c = getopt(args, 'p:r:')) != null) {
while ((c = getopt(args, 'vp:r:')) != null) {
if (c == 'p') opt.pre = getopt.arg;
else if (c == 'r') opt.min_pa_ratio = parseFloat(getopt.arg);
else if (c == 'v') { print(version); exit(0); }
}
if (opt.min_pa_ratio > 1.) opt.min_pa_ratio = 1.;
if (args.length == getopt.ind) {
print("");
print("Usage: k8 bwa-postalt.js [options] <alt.sam> [aln.sam]\n");
print("Options: -p STR prefix of files matching HLA genes [null]");
print("Options: -p STR prefix of output files containting sequences matching HLA genes [null]");
print(" -r FLOAT reduce mapQ to 0 if not overlapping lifted best and pa<FLOAT ["+opt.min_pa_ratio+"]");
print(" -v show version number");
print("");
print("Note: This script extracts the XA tag, lifts the mapping positions of ALT hits to");
print(" the primary assembly, groups them and then estimates mapQ across groups. If");
@ -222,7 +235,7 @@ function bwa_postalt(args)
var buf = new Bytes(); // line reading buffer
// read ALT-to-REF alignment
var intv_alt = {}, intv_pri = {}, hla_ctg = {}, is_alt = {};
var intv_alt = {}, intv_pri = {}, hla_ctg = {}, is_alt = {}, hla_chr = null;
var file = new File(args[getopt.ind]);
while (file.readline(buf) >= 0) {
var line = buf.toString();
@ -237,6 +250,7 @@ function bwa_postalt(args)
if ((m = /^(HLA-[^\s\*]+)\*\d+/.exec(t[0])) != null) { // read HLA contigs
if (hla_ctg[m[1]] == null) hla_ctg[m[1]] = 0;
++hla_ctg[m[1]];
hla_chr = t[2];
}
while ((m = re_cigar.exec(t[5])) != null) {
var l = parseInt(m[1]);
@ -296,6 +310,8 @@ function bwa_postalt(args)
var NM = (m = /\tNM:i:(\d+)/.exec(line)) == null? '0' : m[1];
var flag = t[1];
var h = parse_hit([t[2], ((flag&16)?'-':'+') + t[3], t[5], NM], opt);
if (t[2] == hla_chr) collect_hla_hits(idx_pri, h.ctg, h.start, h.end, hla);
if (h.hard) { // the following does not work with hard clipped alignments
buf2.push(t);
continue;
@ -407,8 +423,7 @@ function bwa_postalt(args)
} else mapQ = t[4];
// find out whether the read is overlapping HLA genes
var pri_ofunc = idx_pri[hits[reported_i].pctg];
if (pri_ofunc != null) {
if (hits[reported_i].pctg == hla_chr) {
var rpt_start = 1<<30, rpt_end = 0;
for (var i = 0; i < hits.length; ++i) {
var h = hits[i];
@ -417,10 +432,7 @@ function bwa_postalt(args)
rpt_end = rpt_end > h.pend ? rpt_end : h.pend;
}
}
var ovlp_alt = pri_ofunc(rpt_start, rpt_end);
for (var i = 0; i < ovlp_alt.length; ++i)
if ((m = /^(HLA-[^\s\*]+)\*\d+/.exec(ovlp_alt[i][2])) != null)
hla[m[1]] = true;
collect_hla_hits(idx_pri, hla_chr, rpt_start, rpt_end, hla);
}
// adjust the mapQ of the primary hits