Module args

ArgParser Module

A simple and lightweight command-line argument parser for Rust applications.

Features

• Parses command-line arguments in short (-a) and long (--argument) format
• Supports arguments with or without values
• Simple and intuitive interface
• No external dependencies

Installation

Add this dependency to your Cargo.toml file:

[dependencies]
drgrep = "0.1.0"

Usage

use drgrep::ArgParser;

fn your_fn() {
   // Initialize the parser (automatically parses command-line arguments)
   let args = ArgParser::new();

   // Check if a flag is present
   if args.has("verbose") || args.has("v") {
       println!("Verbose mode enabled");
   }

   // Get the value of an argument
   match args.get("file") {
       Some(file_path) => println!("Using file: {}", file_path),
       None => {
           if args.has("file") {
               println!("The --file option was specified without a value");
           } else {
               println!("No file specified");
           }
       }
   }
}

Command Line Examples

The parser supports the following argument formats:

# Arguments without values (flags)
$ ./my_program --verbose
$ ./my_program -v

# Arguments with values
$ ./my_program --file test.txt
$ ./my_program -f test.txt

# Combination of arguments
$ ./my_program --verbose --file test.txt -o output.log

Current Limitations

• No support for positional arguments (not preceded by - or --)
• No support for grouped arguments (like -abc for -a -b -c)
• No support for arguments with values in the form --key=value
• No built-in validation for required arguments

Contributing

Contributions are welcome! Feel free to open an issue or pull request.

License

This tool is distributed under the [MIT License].

Modules

parser

Parser Module