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Regexp substitution on variable-length ranges with embedded code?

by Polyglot (Friar)
on May 26, 2021 at 11:02 UTC ( #11133054=perlquestion: print w/replies, xml ) Need Help??

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  1. or download this
    43:1:1; 43:1:2; 43:1:3; 43:1:4; 43:1:5; 43:1:6; 27:3:7; 27:3:8; 27:3:9
    +; 65:1:4; 65:1:18
    
  2. or download this
    43:1:1-5; 27:3:7-9; 65:1:4; 65:1:18
    
  3. or download this
        $seq =~ s/
            (\d+):(\d+):(\d+)
    ...
            (\1):(\2):(?{1+($3|$6)})
    
            /$1:$2:$3-$6/xg;
    
  4. or download this
    #OUTPUT
    43:1:1-2; 43:1:3-4; 43:1:5-6; 27:3:7-8; 27:3:9; 65:1:4-18
    

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