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Do you know where your variables are?

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What would you want it to do?

  1. Iterate on two arrays in paralel:
    @name = qw(fred wilma barney betty); @color = qw(black red blonde black); for $k (0 .. @name - 1) { print $name[$k] . " - " . $color[$k] . "\n" +} # fred - black # wilma - red # barney - blonde # betty - black
  2. Move a sliding window on an array:
    @name = qw(fred wilma barney betty); for $k (0 .. @name - 2) { print $name[$k] . " - " . $name[$k + 1] . "\ +n" } # fred - wilma # wilma - barney # barney - betty
  3. Take the elements of the array in twos:
    @name = qw(fred wilma barney betty); for $k (0 .. @name/2 - 1) { print $name[2 * $k] . " - " . $name[2 * $k + + 1] . "\n" } # fred - wilma # barney - betty
  4. Iterate on an array of pairs:
    @data = (["fred", "black"], ["wilma", "red"], ["barney", "blonde"], [" +betty", "black"]); @color = qw(black red blonde black); for $rec (@data) { my($name, $col +or) = @$rec; print $name . " - " . $color . "\n" } # fred - black # wilma - red # barney - blonde # betty - black
Or perhaps even something you would normally do with two levels of loops, like iterating on each combination of two names.

In reply to Re: can we pass two variable to foreach loop by ambrus
in thread can we pass two variable to foreach loop by phemal

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    [ambrus]: Corion: those are good rules.
    [ambrus]: Discipulus: oh sure. the input data has different filenames every time I get them.
    [ambrus]: the directory structure may be 1, 2, or 3 deep, it may have spaces in the filename or not, it has dates in various format, different keywords for the same meanings, and the dates and other keywords are assembled in various ways.
    [Discipulus]: no ambrus by specification i mean for example license per core instead of per socket, so fields are different

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