+ * Spot the special commands that define a grouping of more
+ * than one paragraph, and also the closing braces that
+ * finish them.
+ */
+ if (t.type == tok_cmd &&
+ (t.cmd == c_lcont || t.cmd == c_quote)) {
+ struct crossparaitem *sitem, *stop;
+ int cmd = t.cmd;
+
+ /*
+ * Expect, and swallow, an open brace.
+ */
+ dtor(t), t = get_token(in);
+ if (t.type != tok_lbrace) {
+ error(err_explbr, &t.pos);
+ continue;
+ }
+
+ /*
+ * Also expect, and swallow, any whitespace after that
+ * (a newline before a code paragraph wouldn't be
+ * surprising).
+ */
+ do {
+ dtor(t), t = get_token(in);
+ } while (t.type == tok_white);
+ already = TRUE;
+
+ if (cmd == c_lcont) {
+ /*
+ * \lcont causes a continuation of a list item into
+ * multiple paragraphs (which may in turn contain
+ * nested lists, code paras etc). Hence, the previous
+ * paragraph must be of a list type.
+ */
+ sitem = mknew(struct crossparaitem);
+ stop = (struct crossparaitem *)stk_top(crossparastk);
+ if (stop)
+ *sitem = *stop;
+ else
+ sitem->seen_quote = sitem->seen_lcont = 0;
+
+ if (prev_para_type == para_Bullet ||
+ prev_para_type == para_NumberedList ||
+ prev_para_type == para_Description) {
+ sitem->type = c_lcont;
+ sitem->seen_lcont = 1;
+ par.type = para_LcontPush;
+ prev_para_type = par.type;
+ addpara(par, ret);
+ } else {
+ /*
+ * Push a null item on the cross-para stack so that
+ * when we see the corresponding closing brace we
+ * don't give a cascade error.
+ */
+ sitem->type = -1;
+ error(err_misplacedlcont, &t.pos);
+ }
+ } else {
+ /*
+ * \quote causes a group of paragraphs to be
+ * block-quoted (typically they will be indented a
+ * bit).
+ */
+ sitem = mknew(struct crossparaitem);
+ stop = (struct crossparaitem *)stk_top(crossparastk);
+ if (stop)
+ *sitem = *stop;
+ else
+ sitem->seen_quote = sitem->seen_lcont = 0;
+ sitem->type = c_quote;
+ sitem->seen_quote = 1;
+ par.type = para_QuotePush;
+ prev_para_type = par.type;
+ addpara(par, ret);
+ }
+ stk_push(crossparastk, sitem);
+ continue;
+ } else if (t.type == tok_rbrace) {
+ struct crossparaitem *sitem = stk_pop(crossparastk);
+ if (!sitem)
+ error(err_unexbrace, &t.pos);
+ else {
+ switch (sitem->type) {
+ case c_lcont:
+ par.type = para_LcontPop;
+ prev_para_type = par.type;
+ addpara(par, ret);
+ break;
+ case c_quote:
+ par.type = para_QuotePop;
+ prev_para_type = par.type;
+ addpara(par, ret);
+ break;
+ }
+ sfree(sitem);
+ }
+ continue;
+ }
+
+ /*