JSON PARSER (from the coding challenges)

• A JSON parser comprises mainly two parts:
  • Lexical Analysis: In this step, the input is converted into an array of tokens.
  • Syntactic Analysis: In this step, the tokens are parsed to check whether they align with the rules of the specified language.

Application Details

• Currently, the software outputs whether the given JSON file is valid or not.
• To test the application yourself, you can put your JSON content inside the demo.json file and run make run. It will tell you whether the content is valid JSON or not.
• Additionally, there are plenty of test cases inside the tests directory. You can run them individually using the command go run main.go relative-filepath.
• I have also prepared a bash script for running all the test cases inside the tests directory. You can run it using either the ./tests.sh command, but first make sure you run make build. You can also run make test which is just an addition of these two commands.

Working of the Application

• In the first step, the input file content is broken into an array of tokens.
• In the next step, the tokens are cleaned up by trimming the whitespaces around them.
• The tokens are then passed into a parser function that parses the tokens to see if they align with the specified language rules.