fn available_path(dir: &Path, name: &str, extension: &str) -> Result<PathBuf> {
	let mut i = 0;
	loop {
		let mut path = PathBuf::from(dir);
		let mut filename = String::new();
		filename.push_str(name);
		if i > 0 {
			filename.push(' ');
			filename.push_str(&i.to_string());
		}
		filename.push('.');
		filename.push_str(extension);
		path.push(filename);
		match std::fs::metadata(&path) {
			// If a file at the path does not exist, return the path.
			Err(error) if error.kind() == std::io::ErrorKind::NotFound => {
				return Ok(path);
			}
			Err(error) => return Err(error.into()),
			// If a file at the path exists, try the next number.
			Ok(_) => {
				i += 1;
				continue;
			}
		}
	}
}
/// This function checks if a file with the given name and extension already exists at the path `base`, and if it does, it appends " 1", " 2", etc. to it until it finds a name that will not overwrite an existing file.
This function checks if a file with the given name and extension already exists at the path `base`, and if it does, it appends " 1", " 2", etc. to it until it finds a name that will not overwrite an existing file.
This function checks if a file with the given name and extension already exists at the path ` base ` and if it does it appends " 1 " " 2 " etc . to it until it finds a name that will not overwrite an existing file .
fn available_path(dir: &Path, name: &str, extension: &str) -> Result<PathBuf> {
	let mut i = 0;
	loop {
		let mut path = PathBuf::from(dir);
		let mut filename = String::new();
		filename.push_str(name);
		if i > 0 {
			filename.push(' ');
			filename.push_str(&i.to_string());
		}
		filename.push('.');
		filename.push_str(extension);
		path.push(filename);
		match std::fs::metadata(&path) {
			// If a file at the path does not exist, return the path.
			Err(error) if error.kind() == std::io::ErrorKind::NotFound => {
				return Ok(path);
			}
			Err(error) => return Err(error.into()),
			// If a file at the path exists, try the next number.
			Ok(_) => {
				i += 1;
				continue;
			}
		}
	}
}
fn available_path ( dir : & Path , name : & str , extension : & str ) -> Result < PathBuf > { let mut i = 0 ; loop { let mut path = PathBuf :: from ( dir ) ; let mut filename = String :: new ( ) ; filename . push_str ( name ) ; if i > 0 { filename . push ( ' ' ) ; filename . push_str ( & i . to_string ( ) ) ; } filename . push ( '.' ) ; filename . push_str ( extension ) ; path . push ( filename ) ; match std :: fs :: metadata ( & path ) { // If a file at the path does not exist, return the path. Err ( error ) if error . kind ( ) == std :: io :: ErrorKind :: NotFound => { return Ok ( path ) ; } Err ( error ) => return Err ( error . into ( ) ) , // If a file at the path exists, try the next number. Ok ( _ ) => { i += 1 ; continue ; } } } }
This function checks if a file with the given name and extension already exists at the path `base`, and if it does, it appends " 1", " 2", etc.
This function checks if a file with the given name and extension already exists at the path ` base ` and if it does it appends " 1 " " 2 " etc .
dir
&Path
name
&str
extension
&str