Scala JSON Parser

Description

This project implements a JSON parser in Scala that validates JSON strings and determines if they are valid or invalid based on their format.

Environment Setup

Prerequisites

• Java (version 8 or higher)
• Scala (version 2.13 or higher)
• SBT (Scala Build Tool)

Installation Steps

1. Install Java: Verify Java installation with:

   java -version

2. Install Coursier: Use Homebrew to install Coursier for Scala dependency management:

   brew install coursier/formulas/coursier && cs setup

3. Install SBT: Install SBT via Homebrew:

   brew install sbt

4. Create build.sbt: At the project root, create a build.sbt file with:

   name := "JsonParser"
   
   version := "0.1"
   
   scalaVersion := "2.13.8"

5. Download Test Data: For testing, download JSON test data from Coding Challenge 2 and place it in the data/ directory.

Running the Project

To run the project, use the following command in the terminal at the project root:

sbt run
sbt "run stepX"  # Replace X with the desired step number (in data/tests folder)

Example JSON Files

• Invalid JSON Example (data/tests/step4/invalid.json):

  {
    "key": "value",
    "key-n": 101,
    "key-o": {
      "inner key": "inner value"
    },
    "key-l": ['list value']  // Invalid due to single quotes
  }

• Valid JSON Example (data/tests/step4/valid2.json):

  {
    "key": "value",
    "key-n": 101,
    "key-o": {
      "inner key": "inner value"
    },
    "key-l": ["list value"]  // Valid with double quotes
  }

Expected Output

• Running the invalid JSON file will result in:

  /path/to/invalid.json is an invalid JSON.
  

• Running the valid JSON file will result in:

  /path/to/valid2.json is a valid JSON.