error_tools 0.27.0

Basic exceptions handling mechanism
Documentation 
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//! A runnable example demonstrating how to use `error_tools::untyped`
//! as a replacement for `anyhow`.

use error_tools::untyped::{Result, Context, format_err};

fn read_and_process_file(path: &str) -> Result<String> {
  let content = std::fs::read_to_string(path).context(format_err!("Failed to read file at '{}'", path))?;

  if content.is_empty() {
    return Err(format_err!("File is empty!"));
  }

  Ok(content.to_uppercase())
}

fn main() {
  // Create a dummy file for the example
  _ = std::fs::write("temp.txt", "hello world");

  match read_and_process_file("temp.txt") {
    Ok(processed) => println!("Processed content: {}", processed),
    Err(e) => println!("An error occurred: {:?}", e),
  }

  match read_and_process_file("non_existent.txt") {
    Ok(_) => (),
    Err(e) => println!("Correctly handled error for non-existent file: {:?}", e),
  }

  // Clean up the dummy file
  _ = std::fs::remove_file("temp.txt");
}