Evalexpr

Project made on october 2020

An essential calculator in haskell

📖 Table of Contents

Table of Contents

1. ➤ About The Project
2. ➤ Prerequisites
3. ➤ Folder Structure
4. ➤ Operators
5. ➤ Run the Program
6. ➤ UnitTest
7. ➤ Results
8. ➤ Authors

📝 About The Project

This is a program named evalexpr.

This project shows how the evaluation of an arithmetic expression works by handling precedence, variables, and functions.

🍴 Prerequisites

The following open source packages are used in this project:

• Stack vers.2.13

🌵 Folder Structure

code
.
 ├── app
 │   └── Main.hs
 ├── funEvalExpr.cabal
 ├── Makefile
 ├── package.yaml
 ├── src
 │   ├── Calculator.hs
 │   ├── Check.hs
 │   └── Lib.hs
 ├── stack.yaml
 ├── stack.yaml.lock
 └── unitTest
     └── unit_test.bats

➕ Operators

Support:

• + (plus)
• - (sub)
• * (multiplication)
• / (division)
• ^ (exponential)

works with () - parenthesis

💻 How to run the program ?

Compile the makefile (make) and add some arithmetic expression like this !

 $> ./funEvalExpr "6 * 12 / 2 * (1 - 2 - (2 - 4 - 5) - 10) ^ 2 * (2 - 7 - 4) ^ 3"
 $> -419904.00

💻 How to run the Unit Test

 > make && test_run
 

Or Put the executable in the `unitTest` folder and run like this :

 > bats unit_test.bats
 

🧮 Results

Evalexpr	Test
error management	100%
one single unary operator	100%
parenthesis	100%
Mixed binary operators	100%
All mixed	100%
Coding style	66.7%

Authors

👦 Edouard Touch
      Email: [email protected]
      GitHub: @eydou