97 lines
1.8 KiB
Ruby
97 lines
1.8 KiB
Ruby
ruleset1 = <<EOS
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# This rules file is extracted from Wikipedia:
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# http://en.wikipedia.org/wiki/Markov_Algorithm
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A -> apple
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B -> bag
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S -> shop
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T -> the
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the shop -> my brother
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a never used -> .terminating rule
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EOS
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puts markov(ruleset1, "I bought a B of As from T S.")
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ruleset2 = <<EOS
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# Slightly modified from the rules on Wikipedia
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A -> apple
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B -> bag
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S -> .shop
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T -> the
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the shop -> my brother
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a never used -> .terminating rule
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EOS
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puts markov(ruleset2, "I bought a B of As from T S.")
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ruleset3 = <<EOS
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# BNF Syntax testing rules
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A -> apple
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WWWW -> with
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Bgage -> ->.*
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B -> bag
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->.* -> money
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W -> WW
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S -> .shop
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T -> the
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the shop -> my brother
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a never used -> .terminating rule
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EOS
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puts markov(ruleset3, "I bought a B of As W my Bgage from T S.")
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ruleset4 = <<EOS
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### Unary Multiplication Engine, for testing Markov Algorithm implementations
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### By Donal Fellows.
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# Unary addition engine
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_+1 -> _1+
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1+1 -> 11+
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# Pass for converting from the splitting of multiplication into ordinary
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# addition
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1! -> !1
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,! -> !+
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_! -> _
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# Unary multiplication by duplicating left side, right side times
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1*1 -> x,@y
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1x -> xX
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X, -> 1,1
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X1 -> 1X
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_x -> _X
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,x -> ,X
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y1 -> 1y
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y_ -> _
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# Next phase of applying
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1@1 -> x,@y
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1@_ -> @_
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,@_ -> !_
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++ -> +
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# Termination cleanup for addition
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_1 -> 1
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1+_ -> 1
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_+_ ->
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EOS
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puts markov(ruleset4, "_1111*11111_")
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ruleset5 = <<EOS
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# Turing machine: three-state busy beaver
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#
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# state A, symbol 0 => write 1, move right, new state B
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A0 -> 1B
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# state A, symbol 1 => write 1, move left, new state C
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0A1 -> C01
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1A1 -> C11
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# state B, symbol 0 => write 1, move left, new state A
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0B0 -> A01
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1B0 -> A11
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# state B, symbol 1 => write 1, move right, new state B
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B1 -> 1B
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# state C, symbol 0 => write 1, move left, new state B
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0C0 -> B01
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1C0 -> B11
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# state C, symbol 1 => write 1, move left, halt
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0C1 -> H01
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1C1 -> H11
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EOS
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puts markov(ruleset5, "000000A000000")
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