maxrt101 / json-lang

Json Lang

Esoteric programming language. The grammar is represented using JSON.

Syntax & Example

Program structure:

{
  "program": "Program Name",
  "import": [
    // Files to import
  ],
  "variables": {
    // List of global variables
  },
  "code": [
    // Code
  ]
}

Features supported:

• Global variables
• Local variables
• Function calls
• Function declaration
• Conditionals (if)
• Loops (for)
• Arithmetic & logic operations (+, -, *, /, ==, !=, <, >, &&, ||)
• Source file importing

Example JsonLang program:

{
  "program": "Example Program",
  "variables": {
    "test": 123
  },
  "code": [
    {"function": {
      "name": "test",
      "args": ["i"],
      "code": [
        {"if": {
          "condition": {"==": [{"local": "i"}, 123]},
          "then": {
            "call": {"name": "print", "args": {"+": [{"local": "i"}, 1]}}
          },
          "else": {
            "call": {"name": "print", "args": {"-": [{"local": "i"}, 1]}}
          }
        }}
      ]
    }},
    {"call": {"name": "test", "args": [{"var": "test"}]}}
  ]
}

How to run

• Clone the repo
• Run main.py

The usage of main.py is ./main.py [FILENAME].
FILENAME is the file to run. Without arguments, it runs the REPL.

The REPL supports the following commands:

• quit - Exits the REPL
• help - Prints help msg
• reset - Resets the runtime (state)
• env - REPL environment variables
• var - Runtime variables
• locals - Prints local variable
• func - Prints the list pf functions
• list - Lists programs
• load - Loads a program
• run-prog - Runs a program
• run-func - Runs a function