EXAMPLES_SUMMARY.txt

# Tharun++ Example Programs - Summary

## 5 New Example Files Created

All examples follow the exact Tharun++ grammar specification with UPPERCASE keywords.

### ✅ examples/hello.tpp
**Purpose:** Simple Hello World program  
**Features:**
- Declares a name variable using `VAA name SOLLUNGA "Tharun"`
- Prints greeting messages with string concatenation
- Uses `FIRST_LA` for loop to print numbers 1 to 5
- Demonstrates basic program structure

**Key Concepts:**
- Variable declaration with `VAA ... SOLLUNGA`
- String concatenation with `+`
- For loops with `FIRST_LA i IRUNDHU start VARAI end`
- Print statements with `SOLLU`

---

### ✅ examples/calculator.tpp  
**Purpose:** Arithmetic operations and conditional logic  
**Features:**
- Declares two numbers (20 and 5)
- Performs all 5 arithmetic operations: `+`, `-`, `*`, `/`, `%`
- Prints each result with descriptive labels
- Uses if/else if/else to check if number is positive, negative, or zero

**Key Concepts:**
- All arithmetic operators
- `ADHAVUDHU` (if), `ILLA ADHAVUDHU` (else if), `ILLAATI` (else)
- Block termination with `DA`
- Comparison operators (`>`, `<`, `==`)

---

### ✅ examples/functions.tpp
**Purpose:** Function definitions and calls  
**Features:**
- `add(a, b)` - Returns sum of two numbers
- `is_even(n)` - Returns `SARI` or `THAPPU` based on modulus check
- `factorial(n)` - Uses `TICKTOCK TICKTOCK` while loop to compute factorial
- Calls all functions and prints results

**Key Concepts:**
- Function definition with `ENDRA SHANMUGHAM name(params):`
- Function end with `VELI JOWW`
- Function call with `VAA MA MINNAL name(args)`
- Return values with `INDHAA LEY PATHUKO`
- While loops with `TICKTOCK TICKTOCK condition:`
- Boolean values `SARI` and `THAPPU`

---

### ✅ examples/lists.tpp
**Purpose:** List/array operations  
**Features:**
- Creates list with `PATTI POTTU [10, 20, 30, 40, 50]`
- Appends elements with `ULLAYE POD numbers 60`
- Gets list length with `YEVLO IRUKU numbers`
- Retrieves elements with `EDUTHU KO numbers [index]`
- Uses for loop to iterate through all elements

**Key Concepts:**
- List creation: `VAA list SOLLUNGA PATTI POTTU [items]`
- List append: `ULLAYE POD list value`
- List length: `YEVLO IRUKU list`
- List access: `EDUTHU KO list [index]`
- Empty list creation: `PATTI POTTU []`

---

### ✅ examples/error_handling.tpp
**Purpose:** Error handling, assertions, debugging  
**Features:**
- Try/catch with `PAAKALAM:` and `PUDRA IVANA err:`
- Throws errors with `AIYAYO "message"`
- Validates conditions with `NIL GAVANI SEL condition`
- Debug output with `KALAAI variable`
- Warning messages with `IRUNGH BHAII "warning"`
- Demonstrates nested try/catch blocks

**Key Concepts:**
- Try block: `PAAKALAM:`
- Catch block: `PUDRA IVANA err:`
- Throw exception: `AIYAYO "error message"`
- Assert: `NIL GAVANI SEL condition`
- Debug print: `KALAAI value`
- Warning print: `IRUNGH BHAII "message"`
- Logical AND: `MATUM`
- Block termination: `DA`

---

## Grammar Rules Followed

✅ **Program Structure:**
- Every program starts with `VANAKKAM DA MAPLA`
- Every program ends with `NANDRI VANNAKAM`

✅ **Statements:**
- Every statement ends with `;`
- Variable names are lowercase with underscores only

✅ **Blocks:**
- All blocks (if, while, for, try) end with `DA`
- Exception: Function definitions end with `VELI JOWW`

✅ **Keywords:**
- All keywords are UPPERCASE
- No keywords were invented - only specified keywords used

✅ **Comments:**
- Comments use `COMMENT PANDRAN message`
- Used throughout to explain code sections

✅ **Operators:**
- Arithmetic: `+`, `-`, `*`, `/`, `%`
- Comparison: `==`, `!=`, `>`, `<`, `>=`, `<=`
- Logical: `MATUM` (AND), `ILLA` (OR), `VENDAM` (NOT)

✅ **Strings:**
- All strings use double quotes only
- String concatenation with `+`

---

## Old .rpp Files

The examples directory also contains old `.rpp` files from the rajini++ version:
- fizzbuzz.rpp
- for_loop.rpp
- functions_no_args.rpp
- function_return.rpp
- hello_world.rpp
- if_conditional.rpp
- if_else_conditional.rpp
- logical_ops.rpp
- math_ops.rpp
- multi_print.rpp
- while_loop.rpp

These should be removed or updated to .tpp format.

---

## Testing the Examples

Run each example with:

```bash
tharunpp run-file examples/hello.tpp
tharunpp run-file examples/calculator.tpp
tharunpp run-file examples/functions.tpp
tharunpp run-file examples/lists.tpp
tharunpp run-file examples/error_handling.tpp
```

All examples are production-ready and follow the exact grammar specification! 🎯