To write the Rules for Scenes element (RS) in the index.

§1.

void RulesForScenesElement::render?Usage of RulesForScenesElement::render:
Index File Services - §11(OUTPUT_STREAM) {
    inter_tree *I = Index::get_tree();
    tree_inventory *inv = Synoptic::inv(I);
    TreeLists::sort(inv->rulebook_nodes, Synoptic::module_order);

    HTML_OPEN("p"); WRITE("<b>The scene-changing machinery</b>"); HTML_CLOSE("p");
    IndexRules::index_rules_box(OUT, inv, I"Scene changing", NULL,
        IndexRules::find_rulebook(inv, I"scene_changing"), NULL, 1, FALSE);
    HTML_OPEN("p");
    Index::anchor(OUT, I"SRULES");
    WRITE("<b>General rules applying to scene changes</b>");
    HTML_CLOSE("p");
    IndexRules::index_rules_box(OUT, inv, I"When a scene begins", NULL,
        IndexRules::find_rulebook(inv, I"when_scene_begins"), NULL, 1, FALSE);
    IndexRules::index_rules_box(OUT, inv, I"When a scene ends", NULL,
        IndexRules::find_rulebook(inv, I"when_scene_ends"), NULL, 1, FALSE);
}