doctests: Fail on extraction if we don't understand the README

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/tests/filter/extract-doctest b/tests/filter/extract-doctest
index 1bcd47318b03a220081b06d8b3406b4f266e6207..10dd42a3d8b5f5bc061551db40a4aed6ebbac9b1 100755 (executable)
--- a/tests/filter/extract-doctest
+++ b/tests/filter/extract-doctest
@@ -56,6 +56,9 @@ while (<>) {
            $e->{OutTop} = $1 eq 'nothing' ? '' : $1;
        } elsif (# parse: expect other wordish things to be comments
                 m{^(?!or\b)\w{2,} }) {
+       } elsif (m/^$/) {
+       } else {
+           confess "unk rhs $_ ?";
        }
        $e->{CQ} = $in_changequote;
     } else {