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( [id://3333]=superdoc: print w/replies, xml ) Need Help??
  • You skip the first element.
  • You print an extra element (undef) at the end. use warnings; would have caught that.
  • The use of scalar there is unnecessary.
  • You really should use use strict;.
  • for (my $i=0; $i<@s; $i++)
    is a rather complex way of saying
    for my $i (0..$#s)

I had a bug in mine too (leading space)

#!/usr/bin/perl use strict; use warnings; my $str = "30 30 36 33 36 36 36 33 36 34" ." 26 24 21 17 17 23 27 27 31 31" ." 34 33 33 33 36 36 37 38 38 38" ." 38 38 35 40 34 34 34 31 37 36" ." 37 37 40 40 49 40 40 40 40 40" ." 40 40 40 33 30 30 30 30 30 42" ." 45 45 45 45 45 49 42 42"; my @str = split(/ /, $str); my $nl = 1; for my $i (0..$#str) { if ($i == 0 ) { $nl = 0; } elsif ($i % 20 == 0) { $nl = 1; print("\n"); } else { $nl = 0; print(" "); } print($str[$i]); } print("\n") if !$nl;

Tested.


In reply to Re^3: printing 20 characters in a line. by ikegami
in thread printing 20 characters in a line. by heidi

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