Re^3: Searching Formatting and Highlighting Text Problem

Can't you just do the lowercasing before you apply the ranges (using the uppercase approach you outlined)? The tag positions in %startfinish would still be valid, as the case has no influence on length...

        my %startfinish  = $widget->tagRanges('sel');

        # undo uppercase
        my $s = $widget->Contents();
        $s =~ tr/A-Z/a-z/;
        $widget->Contents($s);
        
        foreach(sort keys %startfinish)
        {
            $widget->tagAdd("foundtag", $_, $startfinish{$_});
        }
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That would at least highlight all (lowercased) subsequences. But I'm still not entirely sure what the ultimate objective is... Is it just the highlighting?

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Re^4: Searching Formatting and Highlighting Text Problem by janusmccarthy (Novice) on Apr 26, 2009 at 13:08 UTC
That worked! Thank you much! To answer your question, the first goal is basically highlighting. What I eventually want to do with it is let a user type in the starting characters of a known piece of the sequence (which he gets from another source) until he gets one highlighted area. Then do the same thing for the last part of the sequence, then be able to take the area between the two highlighted sequences and do what's called a Blast, which tries to find that sequence in another species.	[reply]

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Re^4: Searching Formatting and Highlighting Text Problem
by janusmccarthy (Novice) on Apr 26, 2009 at 13:08 UTC

That worked! Thank you much! To answer your question, the first goal is basically highlighting. What I eventually want to do with it is let a user type in the starting characters of a known piece of the sequence (which he gets from another source) until he gets one highlighted area. Then do the same thing for the last part of the sequence, then be able to take the area between the two highlighted sequences and do what's called a Blast, which tries to find that sequence in another species.

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