Perl - string matching issue
- by user2886545
I have a problem I cannot understand. I have this string:
gene_id "siRNA_Z27kG1_20543"transcript_id "siRNA_Z27kG1_20543_X_1";tss_id "TSS124620"
And I want to change the gene_id. So, I have the following code:
if ($line =~ /;transcript_id "([A-Za-z0-9:\-._]*)(_[oxOX][_.][0-9]*)";/) {
$num = $2;
$line =~ s/gene_id "([A-Za-z0-9:\-._]*)";/gene_id "$1$num";/g;
print $new $line."\n";
}
The aim of my code is to change siRNA_Z27kG1_20543 for siRNA_Z27kG1_20543_X_1. However, my code does not produce that output. Why? I can't understand that.
My regex needs to be as it is because I match other strings (this time with success).
Thanks.
