in reply to Re^2: Read, match string and print
in thread Read, match string and print

I don't know.    When I tried it, it worked.

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Re^4: Read, match string and print
by sophix (Sexton) on Feb 08, 2010 at 09:26 UTC
    Thanks once again. Yes, it is working but it is getting the wrong input and hence prints out incorrectly. 
    /protein_id="NP_12312"
/db_xref="GI:7546536"

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    Here. in order to get the GI number, I use this matching expression elsif ( /^\s*protein_id\S*\n\s*\Sdb_xref="GI:(\d+)/ ) but it is not matching. Am I doing some fundamental mistake with the matching operators?
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      In the other code posted here, I see that you're reading the file line by line. You can't match more than one line if you're reading/processing each line separately. You will need to either set a flag or collect all information up to a point where you know that the current set of data has ended (for example because you hit the start of the next gene or EOF), and then process the accumulated data.

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        Thanks. You are right. I try to jump between lines using \n, while in fact we are reading the file line by line. I understood what you suggested but it is very difficult for me to implement it. Can you help me please?
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