Question

I’ve a problem in an if-block. I’m comparing two variables, if they are equal then some statements should be executed otherwise some other statement should be executed. I need to return new statement if my false block is executed second time.

For example:

if($type eq $kind ){
  $line1 .= "</p></list-item>\n<list-item><p>";
}
else{
  $line1 .= "\n<list list-type=\"$kind\">\n<list-item><p>";
}

Here type=bullet and kind=number, now the second time the else part (again kind=number) is executed, I want to show the same statement assigned to the $line, I want to show like <list-item></p>

Where do I check the condition again?

Answer 1

You need to keep some state, and use that to determine what to print out the second (or third, or…) time around.

my $has_printed_once = 0;

# your loop {

  if ($type eq $kind) {
    # no change
  } else {
    if ($has_printed_once == 0) {
      # print the second thing
    } else {
      $has_printed_once = 1;
      # print the first thing
    }
  }

# } close loop