RPN Calculator CLI
A Reverse Polish Notation/Postfix calculator for the command line.
Installation and Usage
npm i -g rpn-postfix-cli && rpn <expression>
or
npx rpn-postfix-cli <expression>
Examples
rpn
rpn "8 9 * 2 /"
echo "4 4 4 5 + - *" | rpn
Options
usage:
rpn [expression]
options:
--help, -h: prints this message
if no arguments are passed, opens an interactive repl in current shell
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REPL options
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quit: closes the repl
reset: removes all values currently in stack
stack: prints all values currently in stack
verbose: prints additional information for each evaluation
help: prints this message