37 lines
867 B
Python
37 lines
867 B
Python
from smnp.ast.node.atom import AtomParser
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from smnp.ast.node.operator import BinaryOperator, UnaryOperator, Operator
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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 MinusOperator(UnaryOperator):
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pass
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class Access(BinaryOperator):
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pass
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def UnitParser(input):
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minusOperator = Parser.allOf(
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Parser.terminal(TokenType.MINUS, createNode=Operator.withValue),
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Parser.doAssert(AtomParser, "atom"),
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createNode=MinusOperator.withValues,
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name="minus"
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)
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atom2 = Parser.oneOf(
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minusOperator,
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AtomParser,
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name="atom2"
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)
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return Parser.leftAssociativeOperatorParser(
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atom2,
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[TokenType.DOT],
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Parser.doAssert(atom2, "atom"),
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createNode=lambda left, op, right: Access.withValues(left, op, right),
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name="unit"
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)(input)
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