Swift - conversion of string to expression -


i working on application in simple mathematical expressions passed around strings (for example "2+3"). need execute these expressions make sure equal target.

in mathematica / wolfram language, 1 can convert strings expressions simple command toexpression[]. there equivalent in swift? if not, how might 1 convert string workable math?

use [nsexpression][1], this...

let expression = nsexpression(format:"2+3") if let result = expression.expressionvaluewithobject(nil, context: nil) as? nsnumber {   print(result) } else {   print("error evaluating expression") }

here's blog post nshipster on using nsexpression (includes swift examples).


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