Update: Typo found by toolic and subsequently Anon. Thanks!

Dear all

This seems like it should be pretty obvious, and it works for everything else, so I'm convinced I'm missing something. I do a match on a string, and then change that string into a URL.

Sample string: LOC100282561 [Source:RefSeq peptide;Acc:NP_001148941]
Desired match: LOC100282561
Desired substitution: <a href="http://www.ncbi.nlm.nih.gov/sites/entrez?db=gene&term=LOC100282561" target="_blank">LOC100282561</a>

Now, the code works in many other instances, but this is the first time I've started matching this particular text, and it's finding the match, but failing to make the substitution, so I'm convinced there's some hidden characters that I'm missing here, but I don't know what.

use strict; use warnings; my $Text="LOC100282561 [Source:RefSeq peptide;Acc:NP_001148941]"; my %VisitedLinks=(); #Searching for NCBI Entrez Gene IDs + + $_ = $Text; my @OriginalArray = /(LOC\d{9})/g; for (my $i=0; $i < @OriginalArray; $i++) { if (!defined($VisitedLinks{$OriginalArray[$i]})) { $VisitedLinks{$OriginalArray[$i]} = 1; my $Link = EntrezGeneLinks($OriginalArray[$i]); my $Find = $OriginalArray[$i]; $Text =~ s/$Find$/$Link/g; } } print $Text,"\n"; sub EntrezGeneLinks { my ($ID) = @_; return '<a href="http://www.ncbi.nlm.nih.gov/sites/entrez?db=gene& +term='.$ID.'" target="_blank">'.$ID.'</a>'; }

In reply to Matches but not substituting by seaver

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