This documentation introduces VintLang programming concepts and progresses from basic to advanced usage with well-structured examples.
// Define a variable
let name = "VintLang"
print(name) // Output: VintLanglet name = "VintLang"
let characters = name.split("")
for i in characters {
print(i) // Outputs each character of the string
}
// Define the variable 'name' and assign the string "Tachera Sasi" to it
name = "Tachera Sasi"
// Split the string into an array of characters and print the result
print(name.split(""))
// Reverse the string and print the result
print(name.reverse())
// Get the length of the string and print it
print(name.len())
// Convert the string to uppercase and print it
print(name.upper())
// Convert the string to lowercase and print it
print(name.lower())
// Check if the string contains the substring "sasi" (case-sensitive) and print the result
print(name.contains("sasi"))
// Convert the string to uppercase and check if it contains the substring "SASI" (case-sensitive), then print the result
print(name.upper().contains("SASI"))
// Replace the substring "Sasi" with "Vint" and print the result
print(name.replace("Sasi", "Vint"))
// Trim any occurrence of the character "a" from the start and end of the string and print the result
print(name.trim("a"))
print(string(123)) // "123"
print(string(true)) // "true"
print(string(12.34)) // "12.34"
print(string("Hello World")) // "Hello World"
print(int("123")) // 123
print(int(12.34)) // 12
print(int(true)) // 1
print(int(false)) // 0let age = "10"
age = convert(age, "INTEGER") // Convert string to integer
if (age == 20) {
print("Age is 20")
} else if (age == 10) {
print("Age is 10")
} else {
print("Age is unknown")
}let numbers = [1, 2, 3, 4]
for n in numbers {
print(n)
}let printDetails = func(name, age, height) {
print("My name is " + name + ", I am " + age + " years old, and my height is " + height + " feet.")
}
// Function call
let name = "VintLang"
let age = 10
let height = "6.0"
printDetails(name, age, height)import time
print(time.now()) // Print current timestamp
let year = 2024
print("Is", year, "Leap year:", time.isLeapYear(year))import net
let res = net.get("https://tachera.com")
print(res) // Prints the responseimport string
let trimmed = string.trim(" Hello, World! ")
print(trimmed) // Output: "Hello, World!"
let upper = string.toUpper("hello")
print(upper) // Output: "HELLO"
let replaced = string.replace("Hello, World!", "World", "Vint")
print(replaced) // Output: "Hello, Vint!"// Sample usage of the Regex module in Vint
import regex
// 1. Using match to check if a string matches a pattern
result = regex.match("^Hello", "Hello World")
print(result) // Expected output: true
// 2. Using match to check if a string does not match a pattern
result = regex.match("^World", "Hello World")
print(result) // Expected output: false
// 3. Using replaceString to replace part of a string with a new value
newString = regex.replaceString("World", "VintLang", "Hello World")
print(newString) // Expected output: "Hello VintLang"
// 4. Using splitString to split a string by a regex pattern
words = regex.splitString("\\s+", "Hello World VintLang")
print(words) // Expected output: ["Hello", "World", "VintLang"]
// 5. Using splitString to split a string by a comma
csv = regex.splitString(",", "apple,banana,orange")
print(csv) // Expected output: ["apple", "banana", "orange"]
// 6. Using match with a more complex regex pattern
emailMatch = regex.match("^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}$", "test@example.com")
print(emailMatch) // Expected output: true
// 7. Using replaceString with a regex pattern to replace digits in a string
maskedString = regex.replaceString("\\d", "*", "My phone number is 123456789")
print(maskedString) // Expected output: "My phone number is *********"import os
os.writeFile("example.txt", "Hello, Vint!")
let content = os.readFile("example.txt")
print(content) // Output: "Hello, Vint!"
let files = os.listDir(".")
print(files) // List directory contentslet n = 1
switch (n) {
case 1 {
print("is", n)
break
}
default {
print("is not")
break
}
}import json
//Example 1: Decode a JSON string
print("=== Example 1: Decode ===")
raw_json = '{"name": "John", "age": 30, "isAdmin": false, "friends": ["Jane", "Doe"]}'
decoded = json.decode(raw_json)
print("Decoded Object:", decoded)
//Example 2: Encode a Vint object to JSON
print("\n=== Example 2: Encode ===")
data = {
"language": "Vint",
"version": 1.0,
"features": ["custom modules", "native objects"]
}
encoded_json = json.encode(data) //optional parameter indent
print("Encoded JSON:", encoded_json)
//Example 3: Pretty print a JSON string
print("\n=== Example 3: Pretty Print ===")
raw_json_pretty = '{"name":"John","age":30,"friends":["Jane","Doe"]}'
pretty_json = json.pretty(raw_json_pretty)
print("Pretty JSON:\n", pretty_json)
//Example 4: Merge two JSON objects
print("\n=== Example 4: Merge ===")
json1 = {"name": "John", "age": 30}
json2 = {"city": "New York", "age": 35}
merged_json = json.merge(json1, json2)
print("Merged JSON:", merged_json)
//Example 5: Get a value by key from a JSON object
print("\n=== Example 5: Get Value by Key ===")
json_object = {"name": "John", "age": 30, "city": "New York"}
value = json.get(json_object, "age")
print("Age:", value)
missing_value = json.get(json_object, "country")
print("Country (missing key):", missing_value)// Sample Vint program demonstrating logical operators
// Define a function to test 'and', 'or', and 'not'
let test_logical_operators = func () {
// Testing 'and' operator
let result_and = and(1+2==3, false) // Should return false
print("Result of true AND false: ", result_and)
print(1+2==4)
// Testing 'or' operator
let result_or = or(false, true) // Should return true
print("Result of false OR true: ", result_or)
// Testing 'not' operator
let result_not = not(true) // Should return false
print("Result of NOT true: ", result_not)
}
// Call the function to test the logical operators
test_logical_operators()import os
// Exit with a status code
// os.exit(1)
// Run a shell command
result = os.run("ls -la")
print(result)
// print(os.run("go run . vintLang/main.vint"))
// Get and set environment variables
// os.setEnv("API_KEY", "12345")
api_key = os.getEnv("API_KEY")
print(api_key)
// Read and write files
os.writeFile("example.txt", "Hello, Vint!")
content = os.readFile("example.txt")
print(content)
// List directory contents
files = os.listDir(".")
print(files)
// Create a directory
os.makeDir("new_folder")
// Check if a file exists
exists = os.fileExists("example.txt")
print(exists) // Outputs: false
// Write a file and read it line by line
os.writeFile("example.txt", "Hello\nWorld")
lines = os.readLines("example.txt")
print(lines) // Outputs: ["Hello", "World"]
// Delete a file
//os.deleteFile("example.txt")
// Sample usage of the string module
import "string"
// Example 1: Trim whitespace
result = string.trim(" Hello, World! ")
print(result) // Output: "Hello, World!"
// Example 2: Check if a string contains a substring
containsResult = string.contains("Hello, World!", "World")
print(containsResult) // Output: true
// Example 3: Convert to uppercase
upperResult = string.toUpper("hello")
print(upperResult) // Output: "HELLO"
// Example 4: Convert to lowercase
lowerResult = string.toLower("HELLO")
print(lowerResult) // Output: "hello"
// Example 5: Replace a substring
replaceResult = string.replace("Hello, World!", "World", "Vint")
print(replaceResult) // Output: "Hello, Vint!"
// Example 6: Split string into parts
splitResult = string.split("a,b,c,d", ",")
print(splitResult) // Output: ["a", "b", "c", "d"]
// Example 7: Join string parts
joinResult = string.join(["a", "b", "c"], "-")
print(joinResult) // Output: "a-b-c"
// Example 8: Get a substring
substringResult = string.substring("Hello, World!", 7, 12)
print(substringResult) // Output: "World"
// Example 9: Get the length of a string
lengthResult = string.length("Hello")
print(lengthResult) // Output: 5
// Example 10: Find index of a substring
indexResult = string.indexOf("Hello, World!", "World")
print(indexResult) // Output: 7
// Example 11: Get a substring (valid start and end indices)
result = string.substring("Hello, World!", 0, 5)
print(result) // Output: "Hello"
// Example 12: Invalid indices (start >= end)
result = string.substring("Hello, World!", 7, 3)
print(result) // Output: Error: Invalid start or end index
/*
More methods for this module
simirality
*/import uuid
print(uuid.generate())import math
// greet("Tach")
// Guessing game in Vint
guess = input("Guess a number: ")
guess = convert(guess, "INTEGER")
number = 5 // Predefined correct number
print(math.PI())
while (number != guess) {
// Check if the guess is correct
if (number == guess) {
print("Woo hoo you've guessed it right!")
break
}else if(number > guess){
print("Too small")
}else{
print("Too big")
}
// Prompt for a new guess if incorrect
guess = input("Guess Again: ")
guess = convert(guess, "INTEGER") // Converting the guess input to an integer
}
print("Woo hoo you've guessed it right")
print("Game over!")/*
THIS IS A SIMPLE TERMINAL GAME WRITTEN IN VINTLANG
*/
import time
import os
import json
import uuid
// Game initialization
let player = {
"name": "",
"health": 100,
"inventory": [],
"location": "start"
}
// Save game state to a file
let saveGame = func () {
let saveData = json.encode(player)
os.writeFile("savegame.json", saveData)
print("Game saved!")
}
// Load game state from a file
let loadGame = func () {
if (os.fileExists("savegame.json")) {
let saveData = os.readFile("savegame.json")
player = json.decode(saveData)
print("Game loaded!")
} else {
print("No saved game found.")
}
}
// Display player stats
let showStats = func () {
print("Player Stats:")
print("Name: " + player["name"])
print("Health: " + string(player["health"]))
print("Inventory: " + string(player["inventory"]))
print("Location: " + player["location"])
}
// Handle game events
let handleEvent = func (event) {
if (event["type"] == "item") {
print("You found an item: " + event["name"])
player["inventory"].push(event["name"])
} else if (event["type"] == "enemy") {
print("An enemy appears: " + event["name"])
print("You lose 10 health!")
player["health"] -= 10
}
if (player["health"] <= 0) {
print("You died! Game Over.")
os.exit(1)
}
}
// Main game loop
let gameLoop = func () {
while (true) {
print("\nYou are at: " + player["location"])
print("Choose an action: [explore, stats, save, quit]")
let action = input("> ")
if (action == "explore") {
print("Exploring...")
let event = {
"type": "item",
"name": "Mystic Key"
}
handleEvent(event)
} else if (action == "stats") {
showStats()
} else if (action == "save") {
saveGame()
} else if (action == "quit") {
print("Quitting game...")
os.exit(0)
} else {
print("Invalid action!")
}
}
}
// Start the game
print("Welcome to the Adventure Game!")
print("Enter your player name:")
player["name"] = input(">>> ")
print("Hello, " + player["name"] + "! Let's begin.")
gameLoop()This example integrates modules and features to create a simple application.
import net
import time
import string
import regex
import os
// Function to greet based on time
let greet = func(nameParam) {
let currentTime = time.now()
print("Hello, " + nameParam + "! The current time is " + currentTime)
}
// Greet a user
greet("Vint User")
// Perform a network request
let response = net.get("https://example.com")
print(response)
// Write and read a file
os.writeFile("log.txt", "VintLang Log: " + time.now())
let logContent = os.readFile("log.txt")
print(logContent)