# MRT Programming Language
MRT is a modern, expressive programming language designed for simplicity and readability. It combines intuitive syntax with powerful features for both beginners and experienced programmers.
## Features
- Simple and expressive syntax
- Dynamic typing with type inference
- First-class functions
- Rich built-in functions
- Comprehensive array operations
- Powerful string manipulation
- Modern module system
## Installation
You can install MRT using pip:
```bash
pip install mrt-lang
```
After installation, you can run MRT programs using the `mrt` command:
```bash
mrt your_program.mrt
```
## Quick Start
1. Create a file `hello.mrt`:
```mrt
func main() {
print("Hello, World!")
}
```
2. Run the program:
```bash
mrt hello.mrt
```
## Language Examples
### Variables and Basic Types
```mrt
func variables_demo() {
var name = "Alice"
var age = 25
var height = 1.75
var isStudent = true
print("Name: " + name)
}
```
### Arrays
```mrt
func array_demo() {
var numbers = [1, 2, 3, 4, 5]
push(numbers, 6)
print("Length:", len(numbers))
print("First element:", numbers[0])
}
```
### String Operations
```mrt
func string_demo() {
var text = " Hello, World! "
print("Trimmed:", trim(text))
print("Uppercase:", toUpper(text))
print("Contains 'World':", contains(text, "World"))
}
```
## Built-in Functions
### Array Operations
- `len(array)`: Returns array length
- `push(array, element)`: Adds element to end
- `pop(array)`: Removes and returns last element
- `slice(array, start, end)`: Returns array subset
- `join(array, separator)`: Joins elements into string
- `indexOf(array, element)`: Finds element index
### String Operations
- `split(str, separator)`: Splits string into array
- `substring(str, start, end)`: Extracts string portion
- `toUpper(str)`: Converts to uppercase
- `toLower(str)`: Converts to lowercase
- `trim(str)`: Removes whitespace
- `replace(str, old, new)`: Replaces text
- `startsWith(str, prefix)`: Checks string start
- `endsWith(str, suffix)`: Checks string end
- `contains(str, substr)`: Checks for substring
## Project Structure
- `src/`: Source code for the MRT interpreter
- `lexer.py`: Tokenizes source code
- `parser.py`: Parses tokens into AST
- `interpreter.py`: Executes MRT programs
- `ast.py`: Abstract Syntax Tree definitions
- `docs/`: Comprehensive documentation
- `language_guide.md`: Complete language reference
- `examples.md`: Example programs and tutorials
- `getting_started.md`: Installation and quick start
- `examples/`: Example MRT programs
- `tests/`: Test suite
## Documentation
For more detailed information, check out:
- [Language Guide](docs/language_guide.md): Complete language reference
- [Examples](docs/examples.md): Example programs and tutorials
- [Getting Started](docs/getting_started.md): Installation and quick start
## Development
To set up the development environment:
1. Clone the repository:
```bash
git clone <repository-url>
cd mrt
```
2. Install in development mode:
```bash
pip install -e .
```
3. Install development dependencies:
```bash
pip install -r requirements-dev.txt
```
## Contributing
We welcome contributions! Whether it's:
- Bug reports
- Feature requests
- Documentation improvements
- Code contributions
Please feel free to open issues and pull requests.
## License
MIT License - see [LICENSE.txt](LICENSE.txt) for details.
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