B 7]D@sNdZddlmZddlmZmZmZddZdddZ dd d Z dd d Z dS)z(Chunked reading of FASTA and FASTQ files)paired_fastq_heads)FileFormatErrorFastaFormatErrorUnknownFileFormatcCsB|dd|}|dkr|dS|dddkr2dStddddS) z Search for the end of the last complete FASTA record within buf[:end] Return an integer length such that buf[:length] contains the highest possible number of complete FASTA records. s >r>zFile does not start with ">"N)line)rfindr)bufendposrX/home/fbrian/BIRCH/lib-linux-x86_64/python/lib64/python3.7/site-packages/dnaio/chunks.py _fasta_heads rNcCsB|dd|}|}x&t|ddD]}|dd|}q$W|dS)z Search for the end of the last complete *two* FASTQ records in buf[:end]. Two FASTQ records are required to ensure that read pairs in interleaved paired-end data are not split.  rr)countranger )r r Z linebreaksright_rrr _fastq_heads r@ccs4t|}|t|dd}|dkr<|dddkrs    8