local $ddbl;
my @nest = (['']);
+ my $evalcall_brackets;
my $push_nest = sub {
my ($nk, $nndbl, $what) = @_;
od $1;
if ($2 eq '{') {
od $2;
- $ddbl++;
+ $evalcall_brackets++;
next;
} elsif ($2 eq '}') {
od $2;
- next if --$ddbl;
+ next if --$evalcall_brackets;
$pop_nest->('eval');
od '}';
next;
elsif (s{^\$\{}{}) {
err 'macro invocation cannot be re-$-doubled' if $ddbl;
od '${eval ${call ';
+ $evalcall_brackets = 1;
$push_nest->('eval',1, '&${...}');
} elsif (s{^([~^]?)(?=[ \t])}{}) {
my $prefix = $pfxmap{$1} // die "internal error ($1?)";