XEROX HANOI 2 4 1 Hanoi 1 4 By: Larry Masinter (Masinter.pa@Xerox.com) INTRODUCTION Ancient graphics demo, upgraded to be idle hack. Adds Hanoi to list of idle displays. OPERATION (HANOI NRINGS WINDOW FONT ONCE) [Function] Will display in WINDOW (or HANOIWINDOW, created first time) a towers-of-hanoi problem and solve it. It periodically blocks so you can run it as a background process. NRINGS is the number of rings. If NRINGS is a list it is the labels printed on the rings in font FONT. It conforms to the window shape if you reshape it. It will run indefinitely unless ONCE is non-NIL. (LIST ((PAGE NIL (PAPERSIZE LETTER STARTINGPAGE# 105) (0 0 612 792) ((FOLIO NIL (PARALOOKS (QUAD CENTERED) CHARLOOKS (SUPERSCRIPT 0 INVISIBLE OFF SELECTPOINT OFF PROTECTED OFF SIZE 10 FAMILY MODERN OVERLINE OFF STRIKEOUT OFF UNDERLINE OFF EXPANSION REGULAR SLOPE REGULAR WEIGHT MEDIUM INVERTED OFF USERINFO NIL STYLE NIL) FORMATINFO NIL) (174 36 288 36) NIL) (HEADING NIL (HEADINGTYPE RUNNINGHEAD) (84 744 528 36) NIL) (TEXT NIL NIL (84 96 456 600) NIL))) (PAGE NIL (PAPERSIZE NIL . LETTER) (0 0 612 792) ((FOLIO NIL (PARALOOKS (QUAD CENTERED) CHARLOOKS (SUPERSCRIPT 0 INVISIBLE OFF SELECTPOINT OFF PROTECTED OFF SIZE 10 FAMILY MODERN OVERLINE OFF STRIKEOUT OFF UNDERLINE OFF EXPANSION REGULAR SLOPE REGULAR WEIGHT MEDIUM INVERTED OFF USERINFO NIL STYLE NIL) FORMATINFO NIL) (174 36 288 36) NIL) (HEADING NIL (HEADINGTYPE RUNNINGHEAD) (84 744 528 36) NIL) (TEXT NIL NIL (84 96 456 600) NIL))) (PAGE NIL (PAPERSIZE NIL . LETTER) (0 0 612 792) ((FOLIO NIL (PARALOOKS (QUAD CENTERED) CHARLOOKS (SUPERSCRIPT 0 INVISIBLE OFF SELECTPOINT OFF PROTECTED OFF SIZE 10 FAMILY MODERN OVERLINE OFF STRIKEOUT OFF UNDERLINE OFF EXPANSION REGULAR SLOPE REGULAR WEIGHT MEDIUM INVERTED OFF USERINFO NIL STYLE NIL) FORMATINFO NIL) (174 36 288 36) NIL) (HEADING NIL (HEADINGTYPE RUNNINGHEAD) (84 744 528 36) NIL) (TEXT NIL NIL (84 96 456 600) NIL))))).ÈÈ(È (È(ŠŠ8(ŠŠ8DÈÈ PAGEHEADING RUNNINGHEADMODERN MODERN MODERN MODERN MODERNLOGO HRULE.GETFNMODERN  HRULE.GETFNMODERN  HRULE.GETFNMODERN  HRULE.GETFNMODERN  HRULE.GETFNMODERN - V  ’9W `6zº