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code backup

This commit is contained in:
Heng Li 2014-10-02 17:11:37 -04:00
parent 0a526c698a
commit c4bdf1678d
1 changed files with 20 additions and 16 deletions
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36
bwa-postalt.js
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@ -206,7 +206,7 @@ function parse_hit(s, opt)
// read the ALT-to-REF alignment and generate the index
function read_ALT_sam(fn)
{
var intv_alt = {};
var intv_alt = {}, idx_un = {};
var file = new File(fn);
var buf = new Bytes();
while (file.readline(buf) >= 0) {
@ -215,6 +215,10 @@ function read_ALT_sam(fn)
if (line.charAt(0) == '@') continue;
var pos = parseInt(t[3]) - 1;
var flag = parseInt(t[1]);
if ((flag&4) || t[2] == '*') {
idx_un[t[0]] = true;
continue;
}
var m, cigar = [], l_qaln = 0, l_tlen = 0, l_qclip = 0;
while ((m = re_cigar.exec(t[5])) != null) {
var l = parseInt(m[1]);
@ -231,10 +235,10 @@ function read_ALT_sam(fn)
buf.destroy();
file.close();
// create index for intervals on ALT contigs
var idx_alt = {}
var idx_alt = {};
for (var ctg in intv_alt)
idx_alt[ctg] = intv_ovlp(intv_alt[ctg]);
return idx_alt;
return [idx_alt, idx_un];
}
function bwa_postalt(args)
@ -265,7 +269,8 @@ function bwa_postalt(args)
var file, buf = new Bytes();
var aux = new Bytes(); // used for reverse and reverse complement
var idx_alt = read_ALT_sam(args[getopt.ind]);
var idx_pair = read_ALT_sam(args[getopt.ind]);
var idx_alt = idx_pair[0], idx_un = idx_pair[1];
var buf2 = [], buf3 = [];
// process SAM
@ -282,17 +287,18 @@ function bwa_postalt(args)
// print bufferred reads
if (buf2.length && (buf2[0][0] != t[0] || (buf2[0][1]&0xc0) != (t[1]&0xc0))) {
for (var i = 0; i < buf3.length; ++i) print(obj2str(buf3[i]));
for (var i = 0; i < buf2.length; ++i)
print(buf2[i].join("\t"));
buf2 = []; buf3 = [];
}
// parse the XA tag
if ((m = /\tXA:Z:(\S+)/.exec(line)) == null) {
if ((m = /\tXA:Z:(\S+)/.exec(line)) == null && idx_un[t[2]] == null) {
buf2.push(t);
continue;
}
var XA_strs = m[1].split(";");
var XA_strs = m != null? m[1].split(";") : [];
// parse the reported hit
var hits = [];
@ -311,13 +317,14 @@ function bwa_postalt(args)
hits.push(parse_hit(XA_strs[i].split(","), opt));
// lift mapping positions to the primary assembly
var n_lifted = 0, n_rpt_lifted = 0, rpt_lifted = null;
var n_rpt_lifted = 0, rpt_lifted = null;
for (var i = 0; i < hits.length; ++i) {
var h = hits[i];
var a, h = hits[i];
if (idx_alt[h.ctg] == null) continue;
var a = idx_alt[h.ctg](h.start, h.end);
if (a == null || a.length == 0) continue;
if (idx_alt[h.ctg] == null || (a = idx_alt[h.ctg](h.start, h.end)) == null || a.length == 0) {
if (idx_un[h.ctg] != null || idx_alt[h.ctg] != null) buf3.push(hits[i]);
continue;
}
// find the approximate position on the primary assembly
var lifted = [];
@ -336,13 +343,9 @@ function bwa_postalt(args)
if (i == 0) ++n_rpt_lifted;
}
if (i == 0 && n_rpt_lifted == 1) rpt_lifted = lifted[0].slice(0);
if (lifted.length) ++n_lifted, hits[i].lifted = lifted;
if (lifted.length) hits[i].lifted = lifted;
buf3.push(hits[i]);
}
if (n_lifted == 0) {
buf2.push(t);
continue;
}
// group hits based on the lifted positions on the primary assembly
for (var i = 0; i < hits.length; ++i) { // set keys for sorting
@ -459,6 +462,7 @@ function bwa_postalt(args)
buf2.push(s);
}
}
for (var i = 0; i < buf3.length; ++i) print(obj2str(buf3[i]));
for (var i = 0; i < buf2.length; ++i)
print(buf2[i].join("\t"));
file.close();