35 lines
822 B
Python
35 lines
822 B
Python
from smnp.ast.node.operator import BinaryOperator, Operator, UnaryOperator
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from smnp.ast.node.unit import UnitParser
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from smnp.ast.parser import Parser
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from smnp.token.type import TokenType
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class NotOperator(UnaryOperator):
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pass
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class Power(BinaryOperator):
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pass
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def FactorParser(input):
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powerFactor = Parser.leftAssociativeOperatorParser(
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UnitParser,
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[TokenType.DOUBLE_ASTERISK],
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UnitParser,
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lambda left, op, right: Power.withValues(left, op, right),
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name="power operator"
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)
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notOperator = Parser.allOf(
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Parser.terminal(TokenType.NOT, Operator.withValue),
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powerFactor,
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createNode=NotOperator.withValues,
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name="not"
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)
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return Parser.oneOf(
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notOperator,
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powerFactor,
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name="factor"
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)(input)
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