Expression Evaluator

A Java program that evaluates simple mathematical equations

To run the program using a standard gradle terminal, use ./gradlew run.

To run the programing using a clean terminal use ./gradlew run --console=plain (this is the recommended method)

⚠ Important ⚠

Depending on the operating system that the project is being run on (Windows or Linux/macOS), running ./gradlew run may result in the following error message: ./gradlew: 68: Syntax error: word unexpected (expecting "in"). This means that the gradlew script is being executed on a Linux/macOS system, and it cannot run because LF line-ending characters have been replaced by CRLF characters (for whatever reason).

In order to fix this issue, execute the following commands in order (in the root directory):

1. sed -i.bak 's/\r$//' gradlew (this replaces all CRLF chars with LF chars)
2. rerun the program using ./gradlew run

Plugins

To load in a plugin, select [1] Manage plugins => [2] Load new plugin. When prompted, type in the name of a plugin to load in. Names must include the plugin's package, along with the class of the plugin (e.g. test_plugin.TestPlugin). I have included a few example plugins in this project:

• progress_indicator.ProgressIndicator
• factorial_fibonnaci.FactorialFibonnaci
• csv_output.CSVOutput

To include your own plugin in this gradle project, you must complete the following:

• the plugin must be built and compiled
• the root project's settings.gradle must include your plugin as a sub project
• the root project's build.gradle must specify your plugin as a dependency

Project structure

<root project directory>
├── csv-output              # CSVOutput plugin
├── factorial-fibonnaci     # FactorialFibonnaci plugin sub-project
├── progress-indicator      # ProgressIndicator plugin
├── native-plugin           # NativePluing plugin
├── plugin-api              # Plugin API interfaces
├── src                     # Main program source files
├── build.gradle
├── settings.gradle
├── gradlew
├── gradlew.bat
├── .gitattributes
├── .gitignore
└── README.md