+ /*
+ * Before we add the paragraph to the output list, we
+ * should check that there was any text in it at all; there
+ * might not be if (for example) the paragraph contained
+ * nothing but an unrecognised command sequence, and if we
+ * put an empty paragraph on the list it may confuse the
+ * back ends later on.
+ */
+ if (par.words) {
+ addpara(par, ret);
+ }