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#!/usr/bin/env perl
use strict;
use warnings;
=head1 DESCRIPTION
Look for \cite commands that are not preceeded by a \citea command. This means
that there is no text cite before a numbered cite.
=cut
my %seen;
my %output;
while (<<>>) {
next if m/^\s*%/;
while (m/\\(?<cmd>citea?)\{(?<keys>.*?)\}/g) {
my $keys = $+{keys};
my $cmd = $+{cmd};
for my $key (split /,/, $keys) {
$key = trim($key);
$seen{$key}++ if $cmd eq "citea";
print "incorrect order: $cmd - $key\n" if !defined $seen{$key} and $output{$key}++==0;
}
}
}
sub trim {
my $str = shift;
$str =~ s/\s*$//;
$str =~ s/^\s*//;
return $str;
}
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