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Arithmetic evaluation: Difference between revisions
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A compact recursive descent parser using Hanson's device. This program
* handles left and right associativity and different precedences,
* accepts integers, reals, and radix constants (e.g. 3r10 is 3 in base 3), but not E notation
* accepts the Icon operators + - * / % (remainder) and ^ (exponentiation)
*
* uses Icon style type coercion on operands
* accepts single unary operators, e.g. +(+3) works but ++3 will break it
* represents the AST is a nested list eliminating unneeded parenthesis.
==={{header|Icon}}===
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