name = "Alice"
age = 30
pi = 3.14159
active = true
nothing = nil

# Arithmetic
x = 10 + 5      # 15
x = 10 - 5      # 5
x = 10 * 5      # 50
x = 10 / 5      # 2
x = 10 % 3      # 1
x = -5          # negation

# Comparison
x == y          # equal
x != y          # not equal
x < y           # less than
x <= y          # less or equal
x > y           # greater than
x >= y          # greater or equal

# Logical
a && b          # and (short-circuit)
a || b          # or (short-circuit)
!a              # not

# String concatenation
s = "Hello" + " " + "World"

if x > 10 {
    println("big")
} else {
    println("small")
}

i = 0
while i < 5 {
    println(i)
    i = i + 1
}

for item in [1, 2, 3, 4, 5] {
    println(item)
}

# With range()
for i in range(10) {
    println(i)
}

fn greet(name) {
    println("Hello, " + name + "!")
}

greet("World")

fn add(a, b) {
    return a + b
}

result = add(3, 4)  # 7

fn factorial(n) {
    if n <= 1 {
        return 1
    }
    return n * factorial(n - 1)
}

println(factorial(5))  # 120

arr = [1, 2, 3, 4, 5]

# Access elements
first = arr[0]      # 1
arr[0] = 10         # modify

# Built-in functions
len(arr)            # 5
push(arr, 6)        # append
last = pop(arr)     # remove last
contains(arr, 3)    # true
index(arr, 3)       # 2

person = {name: "Alice", age: 30, city: "NYC"}

# Access values
name = person["name"]

# Modify
person["age"] = 31

# Built-in functions
len(person)         # 3
k = keys(person)    # ["name", "age", "city"]

# This is a comment
x = 42  # inline comment

meta = stat("/file.txt")
println(meta["key"])      # file path
println(meta["size"])     # file size
println(meta["isdir"])    # is directory?

Usage:
  vega [uri]               Start REPL with optional VFS mount (default: ephemeral://)
  vega -s <script.vega>    Execute a script file
  vega -c '<code>'         Execute a single command

Flags:
  -c string       Execute a single Vega command
  -s string       Execute a Vega script file
  -i              Keep REPL open after executing script/command
  -d              Show disassembled bytecode (debug)
  --version       Show version information
  --help          Show help message

for i in range(1, 101) {
    if i % 15 == 0 {
        println("FizzBuzz")
    } else {
        if i % 3 == 0 {
            println("Fizz")
        } else {
            if i % 5 == 0 {
                println("Buzz")
            } else {
                println(i)
            }
        }
    }
}

fn fib(n) {
    if n <= 1 {
        return n
    }
    return fib(n - 1) + fib(n - 2)
}

for i in range(15) {
    println(fib(i))
}

text = "the quick brown fox jumps over the lazy dog"
words = split(text, " ")
println("Word count: " + string(len(words)))

# Count occurrences of "the"
count = 0
for word in words {
    if word == "the" {
        count = count + 1
    }
}
println("Occurrences of 'the': " + string(count))

# Write a file
write("/hello.txt", "Hello, World!")

# Read it back
content = read("/hello.txt")
println(content)

# List directory
files = readdir("/")
for f in files {
    println(f)
}

# Get file metadata
meta = stat("/hello.txt")
println("Size: " + string(meta["size"]))

Source Code → Lexer → Tokens → Parser → AST → Compiler → Bytecode → VM → Result