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#!/usr/local/bin/perl5 -w
#
# btcheck
#
# Check the syntax and structure of a single BibTeX database file.
# Currently hardcoded to use the "Bib" structure, which implements
# exactly the structure of BibTeX 0.99.
#
# $Id: btcheck 8426 2010-02-14 17:31:19Z ambs $
#
use strict;
use Text::BibTeX (':metatypes');
my ($filename, $structure, $bibfile, $entry, %seen_key);
die "usage: btcheck file [structure]\n" unless @ARGV == 1 || @ARGV == 2;
($filename, $structure) = @ARGV;
$structure ||= 'Bib';
$bibfile = new Text::BibTeX::File $filename or die "$filename: $!\n";
$bibfile->set_structure ($structure);
while ($entry = new Text::BibTeX::Entry $bibfile)
{
next unless $entry->parse_ok and $entry->metatype == BTE_REGULAR;
my $key = $entry->key;
$entry->warn ("repeated entry key \"$key\"") if $seen_key{$key};
$seen_key{$key} = 1;
$entry->check;
}
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