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#!/usr/bin/env perl
use warnings;
use strict;
@ARGV == 1 or die "usage: descript-sort.pl file\n";
my $FNAME = $ARGV[0];
open(INFILE, '<', $ARGV[0])
or die "Couldn't open file '$ARGV[0]' for reading: $!\n";
undef $/;
my $content = <INFILE>;
close(INFILE);
my @entries = split(/\n?%%%%\s*\n?/m, $content);
my($entry, %entry_table);
foreach $entry (@entries)
{
chomp(my @lines = split(/\n/m, $entry));
next if (@lines < 1);
s/\s+$// for @lines;
my $key = shift(@lines);
shift(@lines) while (@lines && length($lines[0]) == 0);
if (@lines == 0)
{
print "'$key' has no definition\n";
$entry_table{$key} = "";
next;
}
$entry_table{$key} = join("\n", @lines);
}
my @entry_order = sort keys(%entry_table);
open(OUTFILE, '>', $ARGV[0])
or die "Couldn't open file '$ARGV[0]' for writing: $!\n";
foreach $entry (@entry_order)
{
print OUTFILE "%%%%\n";
print OUTFILE "$entry\n\n";
print OUTFILE "$entry_table{$entry}\n" if ($entry_table{$entry} ne "");
}
print OUTFILE "%%%%\n";
close(OUTFILE);
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