Mercurial > repos > dereeper > ragoo
comparison RaGOO/ragoo_utilities/PAFReader.py @ 13:b9a3aeb162ab draft default tip
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author | dereeper |
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date | Mon, 26 Jul 2021 18:22:37 +0000 |
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12:68a9ec9ce51e | 13:b9a3aeb162ab |
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1 class PAFLine: | |
2 """ Object to represent a single alignment in a minimap PAF file. """ | |
3 | |
4 def __init__(self, in_line): | |
5 """ | |
6 start positions should be before end positions for both query and target | |
7 """ | |
8 self.line = in_line.rstrip().split('\t') | |
9 self.contig = self.line[0] | |
10 self.query_len = int(self.line[1]) | |
11 self.query_start = int(self.line[2]) | |
12 self.query_end = int(self.line[3]) | |
13 self.strand = self.line[4] | |
14 self.ref_header = self.line[5] | |
15 self.ref_len = int(self.line[6]) | |
16 self.ref_start = int(self.line[7]) | |
17 self.ref_end = int(self.line[8]) | |
18 self.num_match = int(self.line[9]) | |
19 self.aln_len = int(self.line[10]) | |
20 self.mapq = int(self.line[11]) | |
21 | |
22 assert self.query_start <= self.query_end | |
23 assert self.ref_start <= self.ref_end | |
24 | |
25 def __str__(self): | |
26 return '\t'.join(self.line) | |
27 | |
28 def __eq__(self, other): | |
29 return self.line == other.line | |
30 | |
31 | |
32 class PAFReader: | |
33 | |
34 def __init__(self, paf_file): | |
35 self.paf_file = paf_file | |
36 | |
37 def parse_paf(self): | |
38 with open(self.paf_file) as f: | |
39 for line in f: | |
40 yield PAFLine(line) |