Yet Another Arithmetic Expression Evaluator
- A simple integer arithmetic expression to give an integer result, e.g. "1 + 2 * 3" should yield the answer 7
- Must be able to be run over a file with one expression per line and output "expr = answer"
- Supports:
- operators +, -, *, /
- integers
- parentheses
Pull the mozilla sbt docker image with docker pull mozilla/sbt
then launch sbt shell
on mac/linux with:
docker run -it --rm -v ~/.ivy2:/root/.ivy2 -v ~/.sbt:/root/.sbt -v $PWD:/app -w /app mozilla/sbt sbt shell
Next instruct sbt to compile and run the application to process an input file with:
runMain YetAnotherArithmeticExpressionEvaluator example.txt
See also the GitHub Action build pipeline that runs the unit tests to check it all works.