Arithmetic evaluation: Difference between revisions
m
→{{header|Elena}}
Line 1,314:
=={{header|Elena}}==
ELENA 6.x :
<syntaxhighlight lang="elena">
import extensions;
import extensions'text;
class Token
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Number = _value.toReal();
}
class Node
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}
}
class SummaryNode : Node
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Number = Left.Number + Right.Number;
}
class DifferenceNode : Node
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Number = Left.Number - Right.Number;
}
class ProductNode : Node
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Number = Left.Number * Right.Number;
}
class FractionNode : Node
Line 1,395 ⟶ 1,381:
Number = Left.Number / Right.Number;
}
class Expression
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get Number() => Top;
}
singleton operatorState
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}
}
class Scope
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dispatch() => _state;
}
class Parser
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catch(Exception e)
{
console.writeLine
};
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