I just found your DDMathParser. It is perfect for a side project I've got going on. I heard mention you have a Swift version...?
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maybe. there’re bizarre edge cases w/ infix notation, like stacked unary operators & right assoc operators
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ex: “-2 ** ---2” negate has lower precedence than right-assoc exp, but has to be eval’d first in the exponent
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I need to rewrite and manipulate the expressions than evaluate them, but I'll have to explore Madness.
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I started building the solution to what Dave requested, but Swift kept crashing. >:(
Anyway gist.github.com/andymatuschak/
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