21 lines
648 B
Ruby
21 lines
648 B
Ruby
module Rpn
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module Core
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module Program
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module_function
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# evaluate (run) a program, or recall a variable. ex: 'my_prog' eval
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def eval( stack, dictionary )
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stack, args = Rpn::Core.stack_extract( stack, [%i[program word name]] )
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# we trim enclosing «»
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preparsed_input = args[0][:type] == :word ? args[0][:value] : args[0][:value][1..-2]
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parsed_input = Rpn::Parser.new.parse_input( preparsed_input )
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stack, _dictionary = Rpn::Runner.new.run_input( stack, dictionary, parsed_input )
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# TODO: check that STO actually updates dictionary
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stack
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end
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end
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end
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end
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