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Arithmetic evaluation: Difference between revisions
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→Icon and Unicon
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* string invocation is used to evaluate binary operators hence other Icon binary operators (including handle multiple character ones) can be easily added
* uses Icon style type coercion on operands
* represents the AST as a nested list eliminating unneeded parenthesis
* Notice that the code looks remarkably like a typical grammar, rather than being an opaque cryptic solution
* Does not rely on any library to silently solve 1/2 the problem; in fact, this code would probably suit being put into a library almost verbatim
==={{header|Icon}}===
<lang Icon>procedure main() #: simple arithmetical parser / evaluator
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