// output of ./demo/comb/string-subst-demo.cc:
// Description:
//% String substitution engine (Lindenmayer system, or L-system).

arg 1: 3 == maxn  [Number of generations]  default=3
Axiom: F
Maps:
  + |--> +
  - |--> -
  F |--> F+F-F
F+F-F+F+F-F-F+F-F+F+F-F+F+F-F-F+F-F-F+F-F+F+F-F-F+F-F
 ct=53