+void free_line(line_t *line) {
+ line_t *next;
+ while (line) {
+ next = line->next;
+ if(line->text)
+ (line->text->delete)(line->text);
+ free(line);
+ line = next;
+ }
+}
+
+void free_deck(deck_t *deck) {
+ slide_t *slide, *next;
+ if (deck == NULL)
+ return;
+ slide = deck->slide;
+ while (slide) {
+ free_line(slide->line);
+ next = slide->next;
+ free(slide);
+ slide = next;
+ }
+ free_line(deck->header);
+ free(deck);
+}