pathtrim

When all you need is the last few parts of a path.

This crate implements the TrimmablePath trait on anything that implements AsRef<std::path::Path> so you can easily obtain the last n parts of a path. One good implementor of AsRef<std::path::Path> that comes to mind is std::path::Path

Usage

   use std::path::Path;
   // at the top of your source file
   use pathtrim::TrimmablePath;

   // TrimmablePath is automatically implemented for all 
   // std::path::Paths in the module's scope

   let path = Path::new("/usr/local/bin/");
   
   let trimmed = path.trim_to_nth(1).unwrap();
   assert_eq!(trimmed.to_str().unwrap(), "bin");
   
   let trimmed = path.trim_to_nth(2).unwrap();
   assert_eq!(trimmed.to_str().unwrap(), "local/bin");
   
   let trimmed = path.trim_to_nth(3).unwrap();
   assert_eq!(trimmed.to_str().unwrap(), "usr/local/bin");
   
   let trimmed = path.trim_to_nth(4);
   assert!(trimmed.is_none());
   
   let trimmed = path.trim_to_nth(300);
   assert!(trimmed.is_none());
   
   let trimmed = path.trim_to_nth(2000);
   assert!(trimmed.is_none());
  

note: patch version bumps since 1.0.0 are just documentation updates