+ /**
+ * Write an index/gophermap file with the given link content for the
+ * selected supported web site.
+ *
+ * @param lines
+ * the link content (the stories and a short description)
+ * @param varDir
+ * the base directory to write into
+ * @param basename
+ * the base file name
+ * @param ext
+ * the file extension (for instance, ".html")
+ * @param page
+ * the page number (0 = main index)
+ *
+ * @throws IOException
+ * in case of I/O errors
+ */