#!/usr/bin/perl

use Getopt::Long;

sub usage {
    print STDERR  "Usage:\n";
    print STDERR "\t$0 --lic2 <license 2.0 file>\n";
    exit 1;
}

&usage unless GetOptions("lic2=s" => \$lic2);
&usage unless defined($lic2);

die "Can't open $lic2\n" unless open LIC2, "<$lic2";

# Read files without an input record separator
undef $/;

# Slurp the license file
$lic2text = <LIC2>;
($lic2begin = $lic2text) =~ s/^(.*)\{YEARS\}(.*)/$1/s;
$lic2rem = $2;

# Slurp the input file
$_ = <>;
s|[^\n]*=+\s+           # Non-newlines followed by multiple '='
                        # ...followed by whitespace (incl. newline)
  [^\n]*                # Non-newlines (incl spaces)
  The\ Apache\ Software\ License,\ Version\ 1\.1
  [^C]*                 # Anything not a capital C
  Copyright\ \(C\)\ (\d+(-\d+)?)\ The\ Apache\ Software\ Foundation
  .*                    # Anything
  Foundation,\ please\ see\ \<http://www.apache.org/\>\.
  \s*\n                 # Any whitespace ending in a newline
|$lic2begin$1$lic2rem|xs;

print;