Standard Library

io

The io module provides basic input/output functionality for printing to stdout and reading from stdin.

import "conjure/io"

Functions

println

Prints a string to stdout followed by a newline.

io.println("Hello, World!")

var name = "Conjure"
io.println("Welcome to #{name}!")

Signature:

func println(s string)

print

Prints a string to stdout without a trailing newline. Use this when you want to output multiple values on the same line.

io.print("Loading")
io.print("...")
io.println(" done!")
// Output: Loading... done!

Signature:

func print(s string)

readLine

Reads a line from stdin (blocking). Returns the line without the trailing newline character. Returns an empty string on EOF or error.

io.print("Enter your name: ")
var name = io.readLine()
io.println("Hello, #{name}!")

Signature:

func readLine() string

String Interpolation

The io module works seamlessly with Conjure’s string interpolation. Use #{} to embed expressions directly in strings.

var x = 42
var y = 3.14

io.println("Integer: #{x}")
io.println("Float: #{y}")
io.println("Expression: #{x * 2}")

Example: Simple Calculator

import "conjure/io"

func main() {
    io.println("Simple Calculator")
    io.println("-----------------")

    io.print("Enter first number: ")
    var a = i32(io.readLine())

    io.print("Enter second number: ")
    var b = i32(io.readLine())

    io.println("#{a} + #{b} = #{a + b}")
    io.println("#{a} - #{b} = #{a - b}")
    io.println("#{a} * #{b} = #{a * b}")
    io.println("#{a} / #{b} = #{a / b}")
}