#!/usr/bin/perl

use strict; # https://perlmonks.org/?node_id=11130738
use warnings;

local $_ = <<END;
GO:0002366     False
GO:0002446     True
GO:0002275     True
GO:0043312     True
GO:0006733     False
GO:0019674     False
GO:0043588     False
GO:0055065     False
GO:0055080     True
END

while( /^(.*False\n(?:.*True\n)*)/gm )
  {
  print "$1\n";
  }

[download]

Outputs: 

GO:0002366     False
GO:0002446     True
GO:0002275     True
GO:0043312     True

GO:0006733     False

GO:0019674     False

GO:0043588     False

GO:0055065     False
GO:0055080     True

[download]

In reply to Re: Parsing block of texts by tybalt89
in thread Parsing block of texts by perlance

Title:
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