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PERL

Perl: Dimensional Lists
By: James Payne
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    2008-05-19


    Table of Contents:
  • Perl: Dimensional Lists
  • Printing From Two-Dimensional Lists
  • Printing an Entire Row from a Two-Dimensional List
  • Using Two-Dimensional Lists to Create Variables and Lists

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    Perl: Dimensional Lists - Printing an Entire Row from a Two-Dimensional List
    ( Page 3 of 4 )

    As you can see, printing out an entire row could prove to be a pain in the butt for larger databases. Imagine what would happen if we had a database where we stored a person's first, middle, and last name, along with their pay rate, Social Security number, address, phone number, and so forth. Printing a single row would be quite an ordeal:


    #!/usr/bin/perl

    @StuporHeroes = (

    [' Mount Tittikanaka ', ' Man-Girl ', ' Is a good listener ', ' Has

    Man-Boobs '],

    [' Trailer Park ', ' Deaf Leapard ', ' Has a super sonic guitar ', '

    Is deaf and has one arm making him unable to play his guitar ']

    );

    print "\n\n";

    print $StuporHeroes[0][0] . $StuporHeroes[0][1] . $StuporHeroes[0][2] .

    $StuporHeroes[0][3];

    There is an easier way, however:


    #!/usr/bin/perl

    @StuporHeroes = (

    [' Mount Tittikanaka ', ' Man-Girl ', ' Is a good listener ', ' Has

    Man-Boobs '],

    [' Trailer Park ', ' Deaf Leapard ', ' Has a super sonic guitar ', '

    Is deaf and has one arm making him unable to play his guitar ']

    );

    print "\n\n";

    print @{@StuporHeroes[0]};

    Though it looks weird in code, the line print @{@StuporHeroes[0]} simply says to print the list values that are in @StuporHeroes, from the row listed in the square brackets [].

    This gives us the result:

      Mount Tittikinaka Man-Girl Is a good listener Has Man-Boobs

    There is no simple way to print a bunch of columns in the same manner.



     
     
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