🚀 Jatti Language

A Modern Programming Language Inspired by Punjabi

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Version: 0.4.0
Status: Production Ready ✅
License: MIT
Author: Mr. Angad Singh Website: https://angadsingh31.netlify.app/ Linkedin: https://www.linkedin.com/in/angad-singh-272198339/ Github: https://github.com/s-angad

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📋 Table of Contents

1. About Jatti
2. Features
3. Quick Start
4. Syntax Reference
5. Data Types
6. Keywords
7. Operations
8. Control Flow
9. Functions
10. Collections
11. Built-in Functions
12. String Methods
13. Error Handling
14. Examples
15. Installation
16. VS Code Extension
17. Documentation

---

🎯 About Jatti

Created by Mr. Angad Singh to make programming accessible and fun!

Why Jatti?

✨ Easy to Learn - Clear, readable syntax
✨ Fun Syntax - Punjabi keywords make coding enjoyable
✨ Powerful - Full functional and procedural support
✨ Fast - Compiled bytecode execution via C VM

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✨ Features

Core Features

• ✅ Interpreted Language - Run code directly via C VM
• ✅ Dynamic Typing - Types determined at runtime
• ✅ Functions - First-class functions with recursion
• ✅ Collections - Lists and dictionaries
• ✅ String Support - Full string operations and methods
• ✅ Exception Handling - chal_koshish_karle / pakad blocks
• ✅ File I/O - Read and write files
• ✅ Loops & Conditionals - Full control flow

Advanced Features

• ✅ Recursion - Full support for recursive functions
• ✅ List Operations - Append, indexing, iteration
• ✅ String Methods - vada_likha() , vand_karo(), etc.
• ✅ Built-in Functions - 20+ utility functions
• ✅ Math Operations - Complete arithmetic and comparison
• ✅ Debugging - Clear error messages with cultural roasts

IDE Support

• ✅ VS Code Extension - Full editor integration
• ✅ Syntax Highlighting - Color-coded syntax
• ✅ Run Button - One-click execution
• ✅ Output Panel - Dedicated output pane
• ✅ Error Messages - Clear error reporting with roasts

---

🚀 Quick Start

Install Jatti

# From repository root, use:
jatti run yourfile.jatti

Your First Program

File: hello.jatti

sun_we
    chilla_we "Hello Jatti!"
ja_we

Run it:

jatti run hello.jatti

Output:

Hello Jatti!

---

📝 Syntax Reference

Program Structure

Every Jatti program must have this structure:

sun_we
    fuddu_chiz Your code here
ja_we

Translation:

• sun_we = "Listen" (Start main block)
• ja_we = "Go" (End main block)
• fuddu_chiz = Comment

Comments

fuddu_chiz This is a comment
fuddu_chiz Use fuddu_chiz to add notes

---

🔤 Data Types

Strings

chal_oye greeting ban "Hello"
chal_oye name ban "World"
chilla_we greeting

Numbers (Integer & Float)

chal_oye age ban 25
chal_oye height ban 5.9
chal_oye pi ban 3.14159

Boolean

chal_oye isTrue ban sach
chal_oye isFalse ban jhoot

Lists

chal_oye fruits ban ["apple", "banana", "mango"]
chal_oye numbers ban [1, 2, 3, 4, 5]
chal_oye mixed ban [1, "text", 3.14, sach]

Dictionaries

chal_oye person ban {
    "name": "Singh",
    "age": 25,
    "city": "Punjab"
}

Khaali (None)

chal_oye empty ban khaali

---

🔑 Keywords

Keyword	Meaning	Usage
sun_we	Listen	Start main block
ja_we	Go	End main block
chal_oye	Let's go	Variable assignment
ban	Is/Become	Assignment operator
chilla_we	Shout	Print output
fuddu_chiz	Nonsense/Comment	Add comment
je	If	Conditional
nahin_taan_je	if else if	if Else block
nahin_taan	Otherwise	Else block
har_ek	Every one	For loop
jadon_tak	While	While loop
roko_oye_roko	Stop/Halt	Exit loop
chalo_oye_chalo	Go/Continue	Skip iteration
kaam	Work/Function	Define function
wapas_kar	Return	Return value
chal_koshish_karle	Attempt/Try	Try block
pakad	Catch	Catch block
vadha_hai	Greater than	>
nikka_hai	Less than	<
barabar	Equal	==
barabar_nahi_hai	Not equal	!=
vadha_ya_barabar	Greater or equal	>=
nikka_ya_barabar	Less or equal	<=
sach	Truth	Boolean true
jhoot	Lie	Boolean false
khaali	Empty	Null/None value
ate	And	AND operator
ya_te	Or	OR operator
nahi	Not	NOT operator

---

➕ Operations

Arithmetic

sun_we
    chal_oye a ban 10
    chal_oye b ban 3
    
    chilla_we a + b          fuddu_chiz 13
    chilla_we a - b          fuddu_chiz 7
    chilla_we a * b          fuddu_chiz 30
    chilla_we a / b          fuddu_chiz 3.33
    chilla_we a % b          fuddu_chiz 1
ja_we

Comparison

sun_we
    chal_oye x ban 5
    
    chilla_we x vadha_hai 3           fuddu_chiz sach
    chilla_we x nikka_hai 10          fuddu_chiz sach
    chilla_we x barabar 5             fuddu_chiz sach
ja_we

Logical

sun_we
    chal_oye a ban sach
    chal_oye b ban jhoot
    
    je a ate b                   fuddu_chiz AND operator
        chilla_we "Both sach"
ja_we

---

🔀 Control Flow

If-Else

sun_we
    chal_oye age ban 18
    
    je age vadha_hai 18
        chilla_we "Adult"
    nahin_taan
        chilla_we "Minor"
ja_we

For Loop

sun_we
    har_ek i range_banao(1, 5)
        chilla_we i
ja_we

Output:

1
2
3
4

While Loop

sun_we
    chal_oye count ban 0
    
    jadon_tak count nikka_hai 5
        chilla_we count
        chal_oye count ban count + 1
ja_we

roko_oye_roko & chalo_oye_chalo

sun_we
    har_ek i range_banao(1, 10)
        je i barabar 5
            roko_oye_roko
        nahin_taan
            chilla_we i
ja_we

---

🔧 Functions

Define Function

sun_we
    kaam greet(name)
        chilla_we "Hello, " + name
        wapas_kar "Done"
    
    chal_oye result ban greet("Singh")
ja_we

Return Value

sun_we
    kaam add(x, y)
        wapas_kar x + y
    
    chal_oye result ban add(5, 3)
    chilla_we result
ja_we

Parameters

sun_we
    kaam product(a, b, c)
        wapas_kar a * b * c
    
    chilla_we product(2, 3, 4)
ja_we

---

📦 Collections

Lists

sun_we
    chal_oye fruits ban ["apple", "banana", "mango"]
    
    fuddu_chiz Access elements
    chilla_we fruits[0]         fuddu_chiz apple
    chilla_we fruits[1]         fuddu_chiz banana
    
    fuddu_chiz List length
    
    fuddu_chiz Loop through list
    har_ek fruit fruits
        chilla_we fruit
ja_we

Dictionaries

sun_we
    chal_oye person ban {"name": "Singh", "age": 25}
    
    fuddu_chiz Access values
    chilla_we person["name"]    fuddu_chiz Singh
    chilla_we person["age"]     fuddu_chiz 25
ja_we

---

🎁 Built-in Functions

Function	Purpose	Example
range_banao(n)	Create range	range_banao(5) → 0,1,2,3,4
kinna_lamba()	Length	kinna_lamba([1,2,3]) → 3
kism()	Type	kism(5) → number
likh()	Write file	likh("file.txt", "text")
padh()	Read file	padh("file.txt")
ganao()	Sum	ganao([1,2,3]) → 6
sab_ton_vaddha()	Max	sab_ton_vaddha([1,5,3]) → 5
sab_ton_chhota()	Min	sab_ton_chhota([1,5,3]) → 1
chal_sort_hoja() / sorted()	Sort	chal_sort_hoja([3,1,2]) → [1,2,3]
chal_reverse_hoja() / reversed()	Reverse	chal_reverse_hoja([1,2,3]) → [3,2,1]

---

🔤 String Methods

Jatti provides powerful string manipulation functions:

Method	Purpose	Example
vada_likha(str)	Uppercase	vada_likha("hello") → "HELLO"
chhota_likha(str)	Lowercase	chhota_likha("HELLO") → "hello"
saf_karo(str)	Trim spaces	saf_karo(" text ") → "text"
vand_karo(str, delim)	Split string	vand_karo("a,b,c", ",") → ["a", "b", "c"]
badal_de(str, old, new)	Replace	badal_de("hello", "l", "L") → "heLLo"
shuru_hunda(str, prefix)	Check start	shuru_hunda("hello", "he") → sach
khatam_hunda(str, suffix)	Check end	khatam_hunda("hello", "lo") → sach
dhundh_ja(str, substr)	Find index	dhundh_ja("hello", "ll") → 2

String Methods Examples

sun_we
    chal_oye text ban "Jatti Programming"
    
    chilla_we vada_likha(text)          fuddu_chiz JATTI PROGRAMMING
    chilla_we chhota_likha(text)        fuddu_chiz jatti programming
    
    chal_oye words ban vand_karo(text, " ")
    chilla_we words                     fuddu_chiz ["Jatti", "Programming"]
    
    je shuru_hunda(text, "Jatti")
        chilla_we "Shuru hunda Jatti naal"
    
    chal_oye position ban dhundh_ja(text, "a")
    chilla_we position                 fuddu_chiz 1
    
    chal_oye replaced ban badal_de(text, "Jatti", "JATTI")
    chilla_we replaced                 fuddu_chiz JATTI Programming
    
    je khatam_hunda(text, "ing")
        chilla_we "Khatam hunda ing naal"
ja_we

---

❌ Error Handling

Try-Catch Blocks

sun_we
    chal_koshish_karle
        chal_oye result ban 10 / 0
    pakad err
        chilla_we "Error caught: " + err
ja_we

Error Output With Roasts

Jatti shows a random Punjabi roast first, then the error:

🔥 Roast: Syntax nu respect de.
❌ JATTI ERROR
🔴 Error: Program must start with sun_we.
📍 Line 1

Available Roasts

• "Galti ho gayi !! koi gall nahi."
• "Dhyaan de, Jatti style rakhi !!"
• "Phir ohi mistake !!"
• "Tu compiler nu test kar reha !!"
• "Compiler thak gaya. Tu vi !!"
• "Tu coding chadd de !!"
• "Tere to nhi hona oye !!"
• "Eh ki likh ta tu?"
• "Dimag use kar le thoda."
• "Jatti Lang mazak nahi hai."
• "Syntax nu respect de."

---

💡 Examples

Example 1: Calculator

sun_we
    kaam calculate(a, op, b)
        je op barabar "+"
            wapas_kar a + b
        nahin_taan_je op barabar "-"
            wapas_kar a - b
        nahin_taan_je op barabar "*"
            wapas_kar a * b
        nahin_taan
            wapas_kar a / b
    
    chal_oye result1 ban calculate(10, "+", 5)
    chilla_we result1
ja_we

Example 2: String Processing

sun_we
    chal_oye sentence ban "Jatti is amazing"
    
    chal_oye upper_text ban vada_likha(sentence)
    chilla_we upper_text
    
    chal_oye words ban split(sentence, " ")
    chal_oye word_count ban kinna_lamba(words)
    chilla_we word_count
ja_we

Example 3: File Operations

sun_we
    likh("output.txt", "Hello from Jatti!")
    
    chal_oye content ban padh("output.txt")
    chilla_we content
ja_we

---

🎨 Installation

Windows

# Install Extension from vs code
Jatii extension

# Navigate to directory
cd jatti-lang

# Run a file
jatti run yourfile.jatti

---

🎨 VS Code Extension

Features

• ✅ Syntax highlighting
• ✅ Run button (▶️)
• ✅ Keyboard shortcuts (Ctrl+Alt+R)
• ✅ Dedicated output panel
• ✅ Error reporting
• ✅ Marketplace icon

Usage

1. Create hello.jatti
2. Click ▶️ button or press Ctrl+Alt+R
3. See output in Jatti output panel

---

📚 Documentation

See the full documentation set below. These links point to the main project docs from the extension folder:

• **[Language Specification]

📖 Jatti Language - Complete Specification

Version: 0.4.0
Last Updated: January 2026
Status: Production Ready

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Table of Contents

1. Overview
2. Syntax Basics
3. Data Types
4. Operators
5. Control Flow
6. Functions
7. Built-in Functions
8. String Methods
9. Collections
10. Error Handling
11. Advanced Features
12. Standard Library
13. CLI Tools

---

Overview

Jatti is a dynamically-typed programming language designed to be accessible to Punjabi speakers. It combines familiar programming concepts with Punjabi-influenced syntax.

Key Features

• 🇮🇳 Punjabi-inspired keywords (intuitive and memorable)
• ⚡ Dynamic typing with automatic type coercion
• 🔄 First-class functions
• 📚 Rich collection types (dicts)
• 🛡️ Exception handling with chal_koshish_karle/catch
• 🎯 Simple, readable syntax

Design Philosophy

• Accessibility: Non-programmers should understand the syntax
• Expressiveness: Powerful enough for real programs
• Pragmatism: Keep the core language small and readable

---

Syntax Basics

Comments

# This is a comment
# Comments start with # and go to end of line

Programs

Every Jatti program has this structure:

sun_we
    # Your code here
ja_we

• sun_we = Program start
• ja_we = Program end
• Code inside must be indented with 4 spaces

Example Program

sun_we
    chilla_we "Hello, World!"
    chal_oye x ban 5
    chilla_we x
ja_we

---

Data Types

Primitives

Numbers (Integer & Float)

chal_oye age ban 25          # Integer
chal_oye price ban 19.99     # Float
chal_oye negative ban -10    # Negative

Strings

chal_oye name ban "Singh"
chal_oye greeting ban 'Hello'
chal_oye multiline ban "Line 1
Line 2
Line 3"

Escape Sequences:

"\n"      # Newline
"\t"      # Tab
"\\"      # Backslash
"\""      # Double quote
"\'"      # Single quote

Booleans

chal_oye is_active ban sach     # sach
chal_oye is_deleted ban khaali   # jhoot

Collections

Lists (Arrays)

chal_oye numbers ban [1, 2, 3, 4, 5]
chal_oye mixed ban [1, "two", 3.0, sach]
chal_oye empty ban []

# Access by index
chilla_we numbers[0]      # Output: 1
chilla_we numbers[-1]     # Output: 5 (last element)

Dictionaries

chal_oye person ban {
    naam: "Singh",
    age: 25,
    city: "Punjab"
}

# Access by key
chilla_we person["naam"]         # Output: Singh

Operators

Arithmetic

chal_oye sum ban 10 + 5        # 15
chal_oye diff ban 10 - 5       # 5
chal_oye product ban 10 * 5    # 50
chal_oye quotient ban 10 / 5   # 2
chal_oye remainder ban 10 % 3  # 1
chal_oye power ban 2 ** 3      # 8

Comparison

chal_oye a ban 5
chal_oye b ban 3

je a vadha_hai b              # a > b (greater than)
je a nikka_hai b              # a < b (less than)
je a barabar b                # a == b (equal)
je a barabar_nahi_hai b       # a != b (not equal)
je a vadha_ya_barabar b       # a >= b (greater than or equal)
je a nikka_ya_barabar b       # a <= b (less than or equal)

Logical

je (x vadha_hai 5) ya_te (y nikka_hai 3)        # OR
je (x vadha_hai 5) ate (y nikka_hai 3)        # AND
je nahi (x barabar 0)                     # NOT

Assignment

chal_oye x ban 10
chal_oye x ban x + 5          # x = 15

---

Control Flow

If/Elif/Else

chal_oye score ban 85

je score vadha_ya_barabar 90
    chilla_we "A Grade"
nahin_taan_je score vadha_ya_barabar 80
    chilla_we "B Grade"
nahin_taan_je score vadha_ya_barabar 70
    chilla_we "C Grade"
nahin_taan
    chilla_we "F Grade"

Keywords:

• je = if
• nahin_taan_je = elif
• nahin_taan = else

While Loop

chal_oye count ban 0
jadon_tak count nikka_hai 5
    chilla_we count
    chal_oye count ban count + 1

Keywords:

• jadon_tak = while
• roko_oye_roko = exit loop
• chalo_oye_chalo = skip iteration

For Loop

har_ek number [1, 2, 3, 4, 5]
    chilla_we number

har_ek i range(10)
    chilla_we i

har_ek key, value person
    chilla_we key + value

Keywords:

• har_ek = for
• Works with lists, dicts, ranges, and any iterable

roko_oye_roko & chalo_oye_chalo

har_ek i range(10)
    je i barabar 5
        roko_oye_roko

har_ek i range(10)
    je i % 2 barabar 0
        chalo_oye_chalo
    chilla_we i

---

Functions

Definition

kaam greet(name)
    chilla_we "Hello, " + name
ja_we

greet("Singh")

With Return

kaam add(a, b)
    chal_oye result ban a + b
    wapas_kar result
ja_we

chal_oye sum ban add(5, 3)
chilla_we sum      # Output: 8

Default Parameters

kaam greet(name, greeting="Hello")
    chilla_we greeting + ", " + name
ja_we

greet("Singh")           # Output: Hello, Singh
greet("Singh", "Hi")     # Output: Hi, Singh

Multiple Return Values

kaam get_coordinates()
    wapas_kar 10, 20
ja_we

chal_oye x, y ban get_coordinates()

Recursion

kaam factorial(n)
    je n barabar 1
        wapas_kar 1
    nahin_taan
        wapas_kar n * factorial(n - 1)
ja_we

chilla_we factorial(5)     # Output: 120

---

Built-in Functions

Jatti provides essential utility functions for programming:

Array/List Functions

chal_oye numbers ban [3, 1, 4, 1, 5]

kinna_lamba(numbers)              # 5 (length)
chal_sort_hoja(numbers)           # [1, 1, 3, 4, 5] (sorted)
chal_reverse_hoja(numbers)        # [5, 1, 4, 1, 3] (reversed)
ganao(numbers)                    # 14 (sum)
sab_ton_vaddha(numbers)           # 5 (max)
sab_ton_chhota(numbers)           # 1 (min)

File I/O Functions

likh("output.txt", "Hello Jatti")  # Write to file
padh("output.txt")                 # Read from file

Type Functions

kism(5)                           # "number"
kism("hello")                     # "string"
kism([1, 2, 3])                   # "list"
kism({a: 1})                      # "dict"

Range Function

range_banao(5)                    # [0, 1, 2, 3, 4]
range_banao(2, 5)                 # [2, 3, 4]

Range

range(5)           # 0, 1, 2, 3, 4
range(1, 5)        # 1, 2, 3, 4
range(1, 10, 2)    # 1, 3, 5, 7, 9

---

String Methods

chal_oye text ban "Hello World"

vada_likha(text)                  # "HELLO WORLD"
chhota_likha(text)                # "hello world"
vand_karo(text, " ")              # ["Hello", "World"]
badal_de(text, "World", "Jatti")  # "Hello Jatti"
dhundh_ja(text, "World")          # 6 (index)
shuru_hunda(text, "Hello")        # sach (true)
khatam_hunda(text, "World")       # sach (true)
saf_karo("  Hello  ")             # "Hello"

---

Collections

List Operations

chal_oye nums ban [1, 2, 3]

# Add element
nums.append(4)                    # [1, 2, 3, 4]

# Insert at position
nums.insert(1, 99)                # [1, 99, 2, 3, 4]

# Check if exists
nums.contains(99)                 # sach

# Find index
nums.index_of(2)                  # 1 (0-based)

# fuddu_chizove element
nums.fuddu_chizove(99)                   # [1, 2, 3, 4]

# Get and fuddu_chizove last
chal_oye last ban nums.pop()      # 4, nums = [1, 2, 3]

List Comprehension

# Simple
chal_oye squares ban [x * x har_ek x [1, 2, 3, 4, 5]]
# Result: [1, 4, 9, 16, 25]

# With condition
chal_oye evens ban [x har_ek x [1, 2, 3, 4, 5] je x % 2 barabar 0]
# Result: [2, 4]

# With expression
chal_oye doubled ban [x * 2 har_ek x range(1, 6)]
# Result: [2, 4, 6, 8, 10]

Dictionary Comprehension

chal_oye mapping ban {x: x*2 har_ek x range(1, 5)}
# Result: {1: 2, 2: 4, 3: 6, 4: 8}

---

Error Handling

chal_koshish_karle/Catch

chal_koshish_karle
    chal_oye result ban 10 / 0
pakad error
    chilla_we "Error: " + error
ja_we

Raise Exception

kaam validate_age(age)
    je age nikka_hai 0
        throw "Age cannot be negative"
    nahin_taan
        chilla_we "Age is valid"
ja_we

Error Types

chal_koshish_karle
    chal_oye value ban numbers[100]  # IndexError
pakad error
    chilla_we error
ja_we

chal_koshish_karle
    chal_oye x ban undefined_var     # NameError
pakad error
    chilla_we error
ja_we

chal_koshish_karle
    chal_oye result ban "text" / 5   # TypeError
pakad error
    chilla_we error
ja_we

---

---

CLI Tools

jatti run

Execute a Jatti program:

jatti run program.jatti

---

Keywords Reference

Jatti	English	Purpose
sun_we	program start	Mark program beginning
ja_we	program end	Mark program ending
chal_oye	let/var	Variable assignment
ban	equals/assign	Assignment operator
chilla_we	print	Output to console
kaam	function	Define function
wapas_kar	return	Return from function
je	if	Conditional statement
nahin_taan_je	elif	Else if
nahin_taan	else	Else clause
jadon_tak	while	While loop
har_ek	for	For loop
roko_oye_roko	roko_oye_roko	Exit loop
chalo_oye_chalo	chalo_oye_chalo	Skip iteration
chal_koshish_karle	chal_koshish_karle	Start exception block
pakad	catch	Catch exception
throw	raise/throw	Raise exception
global	global	Access global variable
sach	sach	Boolean sach
khaali	jhoot/empty	Boolean jhoot

---

Operators Reference

Operator	Name	Example
+	Addition	5 + 3 → 8
-	Subtraction	5 - 3 → 2
*	Multiplication	5 * 3 → 15
/	Division	10 / 2 → 5
%	Modulo	10 % 3 → 1
**	Power	2 ** 3 → 8
=	Assignment	x = 5
==	Equal	5 == 5 → sach
!=	Not equal	5 != 3 → sach
<	Less than	3 < 5 → sach
>	Greater than	5 > 3 → sach
<=	Less or equal	5 <= 5 → sach
>=	Greater or equal	5 >= 3 → sach
and / ate	Logical AND	sach ate sach → sach
or / ya_te	Logical OR	sach ya_te khaali → sach
not / nahi	Logical NOT	nahi sach → khaali

---

Error Messages

When something goes wrong, you'll see helpful error messages:

SyntaxError: Unknown keyword 'chhala' on line 5
Did you mean 'chal_oye'?

NameError: Variable 'username' is not defined on line 12
Available variables: name, age, city

TypeError: Cannot / string by number
Line 8: chal_oye result ban "hello" / 5
                                    ^ error here

IndexError: List index 10 out of range (list size: 5)
Line 15: chilla_we numbers[10]
                      ^ error here

ZeroDivisionError: Cannot / by zero
Line 7: chal_oye result ban 10 / 0
                                ^ error here

---

Version History

v0.4.0 (Current)

• ✅ Complete CLI tooling (run, build, format)
• ✅ Enhanced error handling and debugging
• ✅ All Phase 3 advanced features
• ✅ Windows/Linux/Mac compatibility

v0.3.0

• ✅ Advanced operators (%, **)
• ✅ Dictionary/Range support
• ✅ List/Dict comprehensions
• ✅ Global keyword

v0.2.0

• ✅ Standard library functions
• ✅ String methods
• ✅ List operations
• ✅ Error handling (chal_koshish_karle/catch)

v0.1.0

• ✅ Core syntax and keywords
• ✅ Variables and functions
• ✅ Control flow (if/while/for)
• ✅ Basic operators

---

Summary

Jatti is a complete, production-ready programming language with:

✅ Simple, readable Punjabi-inspired syntax
✅ Dynamic typing with type coercion
✅ Comprehensive built-in functions
✅ Exception handling and debugging
✅ Professional CLI tooling
✅ Detailed error messages

Ready to build real programs! 🚀

• **[Beginner Tutorial]- Start here!

🎓 Jatti Language - Beginner Tutorial

Welcome to Jatti! This tutorial will teach you the basics of the language step by step.

---

Part 1: Hello World

Every Jatti program starts with sun_we and ends with ja_we.

Create a file called hello.jatti:

sun_we
    chilla_we "Hello, World!"
ja_we

Run it:

jatti run hello.jatti

Output:

Hello, World!

Explanation:

• sun_we = "Listen up" (program start)
• chilla_we = "shout/print" (output)
• ja_we = "that's all" (program end)
• Code inside must be indented (4 spaces)

---

Part 2: Variables

Variables store values. Use chal_oye to create them:

sun_we
    chal_oye name ban "Singh"
    chal_oye age ban 25
    chal_oye height ban 5.9
    
    chilla_we name
    chilla_we age
    chilla_we height
ja_we

Output:

Singh
25
5.9

Explanation:

• chal_oye = "Let's have" (variable declaration)
• ban = "is" or "equals" (assignment)
• chilla_we = prints the value

Changing Variables

sun_we
    chal_oye x ban 10
    chilla_we x         # Output: 10
    
    chal_oye x ban 20
    chilla_we x         # Output: 20
ja_we

Comments

sun_we
    # This is a comment
    chal_oye name ban "Singh"  # Comments can go here too
    chilla_we name
ja_we

---

Part 3: Basic Math

sun_we
    chal_oye a ban 10
    chal_oye b ban 5
    
    chilla_we a + b     # Output: 15 (addition)
    chilla_we a - b     # Output: 5 (subtraction)
    chilla_we a * b     # Output: 50 (multiplication)
    chilla_we a / b     # Output: 2 (division)
ja_we

Output:

15
5
50
2

More Math

sun_we
    chilla_we 10 % 3    # Output: 1 (fuddu_chiz remainder)
    chilla_we 2 ** 3    # Output: 8 (power)
ja_we

---

Part 4: If Statements (Conditionals)

Make decisions based on conditions:

sun_we
    chal_oye age ban 16
    
    je age vadha_hai 18
        chilla_we "You can vote!"
    nahin_taan
        chilla_we "Too young to vote"
ja_we

Output:

Too young to vote

Explanation:

• je = "if"
• vadha_hai = "is greater than" (>)
• nahin_taan = "else"

Comparison Operators

sun_we
    chal_oye score ban 85
    
    # > greater than
    je score vadha_hai 90
        chilla_we "Great!"
    
    # < less than
    je score nikka_hai 50
        chilla_we "Need to improve"
    
    # == equal
    je score barabar 85
        chilla_we "Perfect score!"
ja_we

Multiple Conditions

sun_we
    chal_oye age ban 25
    chal_oye has_license ban sach
    
    # AND condition
    je (age vadha_ya_barabar 18) ate (has_license barabar sach)
        chilla_we "You can drive!"
ja_we

Explanation:

• ate = "and"
• ya_te = "or"
• nahi = "not"

---

Part 5: Loops - While

Repeat code until a condition is jhoot:

sun_we
    chal_oye count ban 1
    
    jadon_tak count nikka_ya_barabar 5
        chilla_we count
        chal_oye count ban count + 1
ja_we

Output:

1
2
3
4
5

Explanation:

• jadon_tak = "while"
• nikka_ya_barabar = "<=" (less than or equal)

roko_oye_roko & chalo_oye_chalo

sun_we
    chal_oye i ban 0
    
    jadon_tak i nikka_hai 10
        je i barabar 5
            roko_oye_roko          # Exit the loop
        chilla_we i
        chal_oye i ban i + 1
ja_we

Output:

0
1
2
3
4

---

Part 6: Loops - For

Iterate over collections:

sun_we
    chal_oye fruits ban ["Apple", "Banana", "Cherry"]
    
    har_ek fruit fruits
        chilla_we fruit
ja_we

Output:

Apple
Banana
Cherry

Explanation:

• har_ek = "for each"
• Works with lists, dictionaries, ranges

Using range()

sun_we
    har_ek i range(1, 6)
        chilla_we i
ja_we

Output:

1
2
3
4
5

---

Part 7: Lists

Store multiple values:

sun_we
    chal_oye numbers ban [10, 20, 30, 40, 50]
    
    # Access by index
    chilla_we numbers[0]   # Output: 10
    chilla_we numbers[2]   # Output: 30
    chilla_we numbers[-1]  # Output: 50 (last element)
ja_we

Index:

     [10, 20, 30, 40, 50]
      0   1   2   3   4    (forward)
     -5  -4  -3  -2  -1    (backward)

Modifying Lists

sun_we
    chal_oye nums ban [1, 2, 3]
    
### List Operations

```jatti
sun_we
    chal_oye items ban ["a", "b", "c"]
    
    chilla_we kinna_lamba(items)      # Output: 3 (length)
    chilla_we items[0]                # Output: a
    chilla_we items[1]                # Output: b
ja_we

---

Part 8: Strings

Text values:

sun_we
    chal_oye message ban "Hello, Jatti!"
    
    chilla_we message
    chilla_we kinna_lamba(message)    # Output: 14 (length)
ja_we

String Methods

sun_we
    chal_oye text ban "Hello World"
    
    chilla_we vada_likha(text)           # HELLO WORLD
    chilla_we chhota_likha(text)         # hello world
    chilla_we vand_karo(text, " ")       # ["Hello", "World"]
    chilla_we badal_de(text, "World", "Jatti")  # Hello Jatti
ja_we

String Concatenation

sun_we
    chal_oye first_name ban "Singh"
    chal_oye last_name ban "Kumar"
    
    chilla_we first_name + " " + last_name  # Output: Singh Kumar
ja_we

---

Part 9: Functions

Reusable blocks of code:

kaam greet(name)
    chilla_we "Hello, " + name
ja_we

sun_we
    greet("Singh")
    greet("Priya")
    greet("Raj")
ja_we

Output:

Hello, Singh
Hello, Priya
Hello, Raj

Explanation:

• kaam = "function"
• Functions must be defined before sun_we
• Parameters are in parentheses

Functions with Return

kaam add(a, b)
    chal_oye result ban a + b
    wapas_kar result
ja_we

sun_we
    chal_oye sum ban add(5, 3)
    chilla_we sum       # Output: 8
ja_we

Explanation:

• wapas_kar = "return"

Default Parameters

kaam greet(name, greeting="Hi")
    chilla_we greeting + ", " + name
ja_we

sun_we
    greet("Singh")              # Output: Hi, Singh
    greet("Singh", "Hello")     # Output: Hello, Singh
ja_we

---

Part 10: Error Handling

Handle problems gracefully:

sun_we
    chal_koshish_karle
        chal_oye numbers ban [1, 2, 3]
        chilla_we numbers[10]   # Error! Index out of range
    pakad error
        chilla_we "Error: " + error
    ja_we
ja_we

Output:

Error: list index out of range

Explanation:

• chal_koshish_karle = start protected code block
• pakad = "catch" exception
• ja_we = end error handling block

Common Errors

sun_we
    # Division by zero
    chal_koshish_karle
        chal_oye x ban 10 / 0
    pakad error
        chilla_we "Cannot / by zero"
    ja_we
    
    # Undefined variable
    chal_koshish_karle
        chilla_we undefined_var
    pakad error
        chilla_we "Variable not found"
    ja_we
ja_we

---

Part 11: Dictionaries

Store data with labels:

sun_we
    chal_oye person ban {
        naam: "Singh",
        age: 25,
        city: "Punjab"
    }
    
    chilla_we person["naam"]      # Output: Singh
    chilla_we person["age"]       # Output: 25
ja_we

Dictionary Operations

sun_we
    chal_oye student ban {
        naam: "Priya",
        grade: "A"
    }
    
    chilla_we kinna_lamba(student)    # Output: 2
ja_we

---

Part 12: Complete Example Program

Here's a simple program using everything you learned:

kaam calculate_grade(score)
    je score vadha_ya_barabar 90
        wapas_kar "A"
    nahin_taan_je score vadha_ya_barabar 80
        wapas_kar "B"
    nahin_taan_je score vadha_ya_barabar 70
        wapas_kar "C"
    nahin_taan
        wapas_kar "F"
ja_we

sun_we
    chal_oye students ban {
        singh: 85,
        priya: 92,
        raj: 78,
        neha: 95
    }
    
    har_ek name, score students
        chal_oye grade ban calculate_grade(score)
        chilla_we name + ": " + score + " (" + grade + ")"
ja_we

Output:

singh: 85 (B)
priya: 92 (A)
raj: 78 (C)
neha: 95 (A)

---

Part 13: What's Next?

You now know the basics! chalo_oye_chalo with:

1. Intermediate Guide - Learn about comprehensions, and advanced features
2. Advanced Topics - Explore performance tips, best practices, and debugging
3. Example Programs - See real-world applications
4. API Reference - Complete documentation of all functions and methods

---

Cheat Sheet

# Variables
chal_oye x ban 10

# Output
chilla_we x

# Math
+ - * / % **

# Comparison
vadha_hai (>) nikka_hai (<) barabar (==) 
barabar_nahi_hai (!=) vadha_ya_barabar (>=) nikka_ya_barabar (<=)

# Logical
ate (AND) ya_te (OR) nahi (NOT)

# Control Flow
je (if) nahin_taan_je (elif) nahin_taan (else)
jadon_tak (while) har_ek (for) roko_oye_roko chalo_oye_chalo

# Functions
kaam name(params) ... wapas_kar value ja_we

# Error Handling
chal_koshish_karle ... pakad error ... ja_we

# Collections
[list] {dict}

---

Tips for Learning

1. Type out the code - Don't just copy/paste
2. Experiment - Change numbers and strings, see what happens
3. roko_oye_roko things - Errors are how you learn
4. Start small - Combine simple things into complex programs
5. Have fun - Programming should be enjoyable!

---

Happy Coding! 🎉

Questions? See the Troubleshooting Guide.

• **[Local Setup]

Local Setup (Windows)

This repo contains:

• The Jatti C compiler + bytecode VM (c/)
• A VS Code extension (publishable scaffold in jatti-vscode-extension-c/)

Requirements

• Windows 10/11
• Git (optional, but recommended)
• Visual Studio 2022 Build Tools (MSVC)

1) Get the code

git clone https://github.com/s-angad/jatti-language
cd Punjabi-Language-Jatti-

If you already have the folder, just cd into it.

2) Create and activate a virtual environment

No setup is required for the C VM.

3) Run a Jatti file (CLI)

Create hello.jatti:

sun_we
    chilla_we "Hello Jatti!"
ja_we

Run:

   jatti run hello.jatti

• **[Language Basics] - Variables, operators, and loops

Language Basics (Variables, Operators, Control Flow)

This is a quick reference for everyday Jatti syntax.

Program structure

Every program starts with sun_we and ends with ja_we.

sun_we
    chilla_we "hello"
ja_we

Comments

fuddu_chiz this is a comment

Variables

Assignment uses chal_oye <name> ban <value>.

sun_we
    chal_oye x ban 5
    chal_oye name ban "Jatti"
    chal_oye ok ban sach
    chal_oye none ban khaali
    chilla_we x
    chilla_we name
ja_we

Numbers and strings

sun_we
    chal_oye a ban 10
    chal_oye b ban 3
    chilla_we a + b
    chilla_we a * b
    chilla_we a / b
ja_we

Comparison operators (keywords)

Use these in conditions and prints:

• vadha_hai → >
• nikka_hai → <
• barabar → ==
• barabar_nahi_hai → !=
• vadha_ya_barabar → >=
• nikka_ya_barabar → <=

Example:

sun_we
    chal_oye x ban 5
    je x vadha_hai 3
        chilla_we "big"
    nahin_taan
        chilla_we "small"
ja_we

If / else-if / else

sun_we
    chal_oye n ban 10

    je n vadha_hai 10
        chilla_we "gt 10"
    nahin_taan_je n barabar 10
        chilla_we "eq 10"
    nahin_taan
        chilla_we "lt 10"
ja_we

Loops

While (jadon_tak)

sun_we
    chal_oye i ban 1
    chal_oye total ban 0

    jadon_tak i nikka_ya_barabar 5
        chal_oye total ban total + i
        chal_oye i ban i + 1

    chilla_we total
ja_we

For-each (har_ek)

sun_we
    chal_oye total ban 0
    har_ek i range_banao(1, 6)
        chal_oye total ban total + i
    chilla_we total
ja_we

Try / catch (chal_koshish_karle / pakad)

sun_we
    chal_koshish_karle
        chal_oye x ban 10 / 0
    pakad err
        chilla_we err
ja_we

Next reads

• Full spec: LANGUAGE_SPECIFICATION.md

• Beginner tutorial: BEGINNER_TUTORIAL.md

• **[String Methods Reference] - Punjabi string method guide

🔤 Jatti String Methods - Punjabi Reference

All string methods in Jatti now use Punjabi names!

String Methods Summary

Punjabi Name	English Translation	Purpose	Syntax
vada_likha	Big Letters	Convert string to UPPERCASE	vada_likha(str)
chhota_likha	Small Letters	Convert string to lowercase	chhota_likha(str)
saf_karo	Clean/Trim	Remove leading/trailing whitespace	saf_karo(str)
vand_karo	Split/Divide	Split string by delimiter into list	vand_karo(str, delimiter)
badal_de	Replace/Change	Replace all occurrences of substring	badal_de(str, old, new)
shuru_hunda	Starts With	Check if string starts with prefix	shuru_hunda(str, prefix)
khatam_hunda	Ends With	Check if string ends with suffix	khatam_hunda(str, suffix)
dhundh_ja	Find/Search	Find index of substring (returns -1 if not found)	dhundh_ja(str, substring)

---

📝 Usage Examples

Example 1: Text Transformation

sun_we
    chal_oye naam ban "Singh"
    
    fuddu_chiz Uppercase karo
    chilla_we vada_likha(naam)     fuddu_chiz SINGH
    
    fuddu_chiz Lowercase karo
    chilla_we chhota_likha(naam)   fuddu_chiz singh
ja_we

Example 2: String Splitting

sun_we
    chal_oye sentence ban "Jatti,is,awesome"
    
    fuddu_chiz Split by comma
    chal_oye words ban vand_karo(sentence, ",")
    chilla_we words                fuddu_chiz ["Jatti", "is", "awesome"]
ja_we

Example 3: String Replacement

sun_we
    chal_oye text ban "hello world"
    
    fuddu_chiz Replace "world" with "Jatti"
    chal_oye result ban badal_de(text, "world", "Jatti")
    chilla_we result               fuddu_chiz hello Jatti
ja_we

Example 4: String Checking

sun_we
    chal_oye filename ban "document.txt"
    
    fuddu_chiz Check if it's a text file
    je khatam_hunda(filename, ".txt")
        chilla_we "Yes, it's a text file!"
    
    fuddu_chiz Check if it starts with "document"
    je shuru_hunda(filename, "document")
        chilla_we "Yes, starts with document!"
ja_we

Example 5: Finding Substrings

sun_we
    chal_oye text ban "Jatti Language"
    
    fuddu_chiz Find position of "Lang"
    chal_oye pos ban dhundh_ja(text, "Lang")
    chilla_we pos                  fuddu_chiz 7
    
    fuddu_chiz Find non-existent substring
    chal_oye pos2 ban dhundh_ja(text, "xyz")
    chilla_we pos2                 fuddu_chiz -1
ja_we

Example 6: Trimming Whitespace

sun_we
    chal_oye text ban "   Jatti Language   "
    
    fuddu_chiz Remove leading and trailing spaces
    chal_oye cleaned ban saf_karo(text)
    chilla_we cleaned              fuddu_chiz "Jatti Language"
ja_we

Example 7: Complex Text Processing

sun_we
    chal_oye data ban "NAME:Angad,AGE:25,CITY:Punjab"
    
    fuddu_chiz Split by comma first
    chal_oye pairs ban vand_karo(data, ",")
    
    fuddu_chiz Process each pair
    har_ek pair pairs
        chilla_we vada_likha(pair)  fuddu_chiz Convert to uppercase
ja_we

---

Why Punjabi Names?

The string methods use Punjabi names to:

• Make the language more accessible to Punjabi speakers
• Maintain cultural consistency
• Make code more readable for Punjabi audiences
• Honor Punjabi linguistic traditions

---

API Reference

vada_likha(str) - Uppercase

• Input: String
• Output: Uppercase version of string
• Example: vada_likha("hello") → "HELLO"

chhota_likha(str) - Lowercase

• Input: String
• Output: Lowercase version of string
• Example: chhota_likha("HELLO") → "hello"

saf_karo(str) - Trim

• Input: String
• Output: String with leading/trailing whitespace removed
• Example: saf_karo(" text ") → "text"

vand_karo(str, delimiter) - Split

• Input: String, delimiter string
• Output: List of strings split by delimiter
• Example: vand_karo("a,b,c", ",") → ["a", "b", "c"]
• Note: Delimiter cannot be empty

badal_de(str, old, new) - Replace

• Input: String, old substring, new substring
• Output: String with all occurrences of old replaced with new
• Example: badal_de("hello", "l", "L") → "heLLo"

shuru_hunda(str, prefix) - Starts With

• Input: String, prefix to check
• Output: Boolean (sach/jhoot)
• Example: shuru_hunda("hello", "he") → sach

khatam_hunda(str, suffix) - Ends With

• Input: String, suffix to check
• Output: Boolean (sach/jhoot)
• Example: khatam_hunda("hello", "lo") → sach

dhundh_ja(str, substring) - Find

• Input: String, substring to find
• Output: Number (index of substring, or -1 if not found)
• Example: dhundh_ja("hello", "ll") → 2

---

Happy coding with Jatti! 🚀

---

---

📊 Language Stats

• Version: 0.4.0
• Lines of Code: 3500+
• Keywords: 25+
• Built-in Functions: 18+ (including 8 Punjabi string methods)
• Examples: 60+
• Documentation: 1700+ lines

---

🤝 Contributing

Contributions welcome! Please:

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Test thoroughly
5. Submit a pull request

---

📄 License

MIT License

---

👤 Author

Mr. Singh / Mr. Angad Singh

• Created: January 2025
• Language: Jatti
• Inspiration: Punjabi culture, Python simplicity

---

🙏 Acknowledgments

Thanks to:

• Punjabi language speakers
• Python community for inspiration
• All contributors and users

---

📞 Support

• 📧 Email: jatti-lang@example.com
• 🐛 Issues: GitHub Issues
• 💬 Discussions: GitHub Discussions

---

📜 Version History

v0.4.0 (Current - Production Ready) ✅

• ✅ Full recursive function support
• ✅ String methods API with Punjabi names (vada_likha, chhota_likha, vand_karo, badal_de, saf_karo, shuru_hunda, khatam_hunda, dhundh_ja)
• ✅ Safe string handling
• ✅ All comparison operators
• ✅ Punjabi roast error messages with exception types
• ✅ VS Code output panel integration
• ✅ Try-catch exception handling
• ✅ Comprehensive test coverage

v0.3.0

• Basic language features
• String operations
• Collections (lists, dicts)
• Control flow (if/else, loops)

---

Happy Coding! 🎉 - Jatti Lang Team