This package provides general utilities.

---++++ listutils

	* take/3 and drop/3, take_while/3 and drop_while/3
	* rep/3 for build a list by repeating an element
	* cons/3 and decons/3
	* print_list/1, printq_list/1, print_numbered_list/1

---++++ termutils

	*	with_status_line/1
		Provides an environment where messages printed with status/2 appear
		over each other on one line. The environment makes sure that when 
		a shorter line is printed after a longer one, the remaining characters
		are erased.

---++++ pairs

	Tools for working with X-Y terms.