+is(try("z", "foo_bar" => "bar", "[[foo_bar]]"), "[[bar]]"); # old link with underscore
+is(try("z", "foo" => "bar_foo", "[[foo]]"), "[[bar_foo]]"); # new link with underscore
+is(try("z", "foo_bar" => "bar_foo", "[[foo_bar]]"), "[[bar_foo]]"); # both with underscore
+is(try("z", "foo" => "bar__".ord("(")."__", "[[foo]]"), "[[bar(]]"); # new link with escaped chars
+is(try("z", "foo__".ord("(")."__" => "bar(", "[[foo(]]"), "[[bar(]]"); # old link with escaped chars
+is(try("z", "foo__".ord("(")."__" => "bar__".ord(")")."__", "[[foo(]]"), "[[bar)]]"); # both with escaped chars