20 lines
519 B
Plaintext
20 lines
519 B
Plaintext
@1
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[] : " |\t|\n"
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[const] : "[0-9]+" : ~
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[plus] : "\+"
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[minus] : "-"
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[times] : "\*"
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[divided] : "/"
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[open] : "\("
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[close] : "\)"
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{constant} : <expression> : [const]
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{product} : <expression> : <expression> [times] <expression>
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{quotient} : <expression> : <expression> [divided] <expression>
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{sum} : <expression> : <expression> [plus] <expression>
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{difference} : <expression> : <expression> [minus] <expression>
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{priorised} : <expression> : [open] <expression> [close]
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<expression>
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