1#!/usr/bin/perl
2#
3# Take a piece of C code and for each line which contains the sequence $$
4# repeat n times with $ replaced by 0...n-1; the sequence $# is replaced
5# by the unrolling factor, and $* with a single $
6#
7
8($n) = @ARGV;
9$n += 0;
10
11while ( defined($line = <STDIN>) ) {
12    if ( $line =~ /\$\$/ ) {
13	$rep = $n;
14    } else {
15	$rep = 1;
16    }
17    for ( $i = 0 ; $i < $rep ; $i++ ) {
18	$tmp = $line;
19	$tmp =~ s/\$\$/$i/g;
20	$tmp =~ s/\$\#/$n/g;
21	$tmp =~ s/\$\*/\$/g;
22	print $tmp;
23    }
24}
25