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I couldn't find any files of the correct format. I tried blastn at NCBI on NC_000009.11, but after waiting 45 minutes it said: "Informational Message: blastsrv4.REAL: Error: CPU usage limit was exceeded, resulting in SIGXCPU (24)." which probably just goes to show I don't know what the .... I'm doing.

So I based this upon your sample:

#! perl -slw use strict; my( $ID, $query, $off ); while( <DATA> ) { if( m[^>] ) { ( $ID ) = (split '\|', $_)[ 1 ]; next; } if( m[^Query] ) { ( $query ) = m[^Query\s+(\d+)]; my $top = substr $_, 15; my $pipes = substr <DATA>, 15; my $bot = substr <DATA>, 15; my $p = 0; while( $p = 1+index $pipes, ' ', $p ) { printf "%20s :(%d) %1s/%1s\n", $ID, $query+$p, substr( $top, $p-1, 1 ), substr( $bot, $p-1, 1 ); } } } __DATA__

Outputs:

c:\test\blast>..\853819.pl 14079 ref :(75) A/C 14080 ref :(15) A/A 14080 ref :(90) T/T 14080 ref :(124) G/G 14080 ref :(129) C/C 14080 ref :(136) A/A 14081 ref :(75) A/C

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re: parsing mismatch from blast output by BrowserUk
in thread parsing mismatch from blast output by Anonymous Monk

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