+ my ($args, $pat);
+ if ($args[-1] eq '...') {
+ $args = scalar @args;
+ $pat = $args - 1;
+ $args = $prefix . $args;
+ }
+ else {
+ # don't check args, and guess which arg is the pattern
+ # (one of 'fmt', 'pat', 'f'),
+ $args = 0;
+ my @fmts = grep $args[$_] =~ /\b(f|pat|fmt)$/, 0..$#args;
+ if (@fmts != 1) {
+ die "embed.pl: '$plain_func': can't determine pattern arg\n";
+ }
+ $pat = $fmts[0] + 1;
+ }
+ my $macro = grep($_ == $pat, @nonnull)