> Pfft. try postfix (reverse polish notation/algorithm) instead of infix sacha, its easier to implement, thats why most and common antique and modern calculators are using postfix or reverse polish notation. but still i love top-down parsing algorithm which gives me the freedom and flexibility to write extendible parsers which lead to a compiler. using top-down parsing, its very easy to distinguish between an unary minus/plus and subtraction/addtion and gives the exact results as what standard order of precedence says.
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