#!/usr/local/bin/perl

# This script will generate  word level networks for the no-grammar test.
# usage: ng_net.prl ng_gram_file nn nl
#
# TL 7/1998
#

$[ = 1;			# set array base to 1

if ( $#ARGV != 4 ) {
    die "usage: ng_net.prl no-grammar_word_file output_net_file nn nl\n";
}

$ng_file = $ARGV[1];
if ( ! -f $ng_file ) {
    die "no-grammar_word_file output_net_file $ng_file not found.\n";
}

$net_file = $ARGV[2];
$nn = $ARGV[3];
$nl = $ARGV[4];

open(NGFILE,"<$ng_file") or die "Can't open file $ng_file\n";
open(NETFILE,">$net_file") or die "Can't open file $net_file\n";

while (<NGFILE>) {
	chop;				# strip record separator
	/\*/ && next;		# skip comment line
	@Fld = split(' ', $_, 9999);

	if ($. == 1) {
		printf NETFILE "N=%d L=%d\n", $nn, $nl;
		$stwd = '!SENT_START';
		printf NETFILE "I=%-4d W=%s\n", 0, $stwd;
		$enwd = '!SENT_START';
		$word = 'SENTENCE-END';
		$num{$word} = 1;
		$words{1} = $word;
		printf NETFILE "I=%-4d W=%s\n", 1, $enwd;
		$nullwd = '!NULL';
		printf NETFILE "I=%-4d W=%s\n", 2, $nullwd;
		$ln = 3;
	}
	if ($#Fld == 1) {
		printf NETFILE "I=%-4d W=%s\n", $ln++, $Fld[1];
	}
}

$like = -log($ln - 2);
printf NETFILE "J=%-5d S=%-4d E=%-4d l=%.4f\n", $la++, 0, 2, 0.0;
printf NETFILE "J=%-5d S=%-4d E=%-4d l=%.4f\n", $la++, 2, 1, $like;
for ($i = 3; $i < $ln; $i++) {
	printf NETFILE "J=%-5d S=%-4d E=%-4d l=%.4f\n", $la++, 2, $i, $like;
}
for ($i = 3; $i < $ln; $i++) {
	printf NETFILE "J=%-5d S=%-4d E=%-4d l=%.4f\n", $la++, $i, 2, 0.0;
}

close(NGFILE);
close(NETFILE);