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Text File  |  1995-06-19  |  381b  |  13 lines
  1. V.2.5
  2. Date: Sun, Jun 18, 1995 -- 23:06
  3. -in.abc1
  4. -se.tryflags2
  5. -ho.abc
  6.  
  7. // This grammar produces strings of length 10 containing an equal number of b's and c's, whenever possible (i.e. if there is an even number of a's)
  8.  
  9. RND
  10. GRAM#1[1] S            -->    X X X X X X X X X X  /make_b = 1/
  11. GRAM#1[2] /make_b -1/  X    -->    b /make_c +1/
  12. GRAM#1[3] /make_c -1/  X    -->    c /make_b +1/
  13. GRAM#1[4]     X        -->    a