Syntax Reference

// Single-line comment
name = "João"  // Inline comment

name = "João"       // String
age = 25            // Integer
price = 19.99       // Float
active = true       // Boolean

name = João                    // OK (no spaces)
title = "Software Engineer"    // Quotes needed (space)
email = "user@example.com"     // Quotes needed (special char)

host := "localhost"
port := 8080

server {
  url = host + ":" + port
}

global := 100

obj {
  local := 50       // Only accessible inside obj
  value = local     // 50
  outer = global    // 100
}

enabled = true      // Standard
disabled = false

dark_mode = yes     // Alternative (v0.0.6+)
analytics = no

cache = on          // Alternative (v0.0.6+)
debug = off

user {
  name = "João"
  age = 25
  config {
    theme = "dark"
  }
}

numbers = [1, 2, 3, 4, 5]
colors = [red, blue, green]
mixed = ["João", 25, true]

// Nested arrays
matrix = [
  [1, 2, 3],
  [4, 5, 6]
]

server {
  methods = [GET, POST, PUT]
  ports = [8080, 8081, 8082]
}

// Basic range
ports = [8080..8085]      // [8080, 8081, 8082, 8083, 8084, 8085]

// With step
evens = [0..10 step 2]    // [0, 2, 4, 6, 8, 10]

// Large scale
data = 0..9999            // 10,000 items

price = 100
tax = 15
total = price + tax       // 115
half = total / 2          // 57.5
remainder = total % 10    // 5

config {
  host = "localhost"
  port = 5432
}

url = config.host + ":" + config.port

age = 20
status = age >= 18 ? "adult" : "minor"

// Nested ternary
level = score > 90 ? "A" :
        score > 80 ? "B" :
        score > 70 ? "C" : "F"

users [
  template { id, name, role }
  
  1, "Alice", "admin"
  2, "Bob", "user"
  3, "Charlie", "user"
]

users [
  template { name, age }
  
  map (u) = {
    name = u.name
    age = u.age
    adult = u.age >= 18
  }
  
  "Alice", 25
  "Bob", 17
]

grid = (0..2 map (y) = (0..2 map (x) = {
  x = x
  y = y
}))

@preset "defaults" {
  timeout = 30
  retries = 3
}

api = @use "defaults" {
  endpoint = "/api"
}

user {
  id = @uuid
  email = @email
  age = @int(18, 65)
  score = @float(0.0, 100.0)
  active = @bool
  created = @datetime
}

include "database.jsson"
include "api.jsson"

app {
  name = "MyApp"
}