pub fn parse_file<P: ?Sized>(filename: &P) -> Option<Vec<Directive>>
        where P: AsRef<Path> {
    let filename = filename.as_ref();

    let mut f = match File::open(filename) {
        Ok(f) => f,
        Err(e) => {
            let _ = writeln!(stderr(), "linefeed: {}: {}", filename.display(), e);
            return None;
        }
    };

    let mut buf = String::new();

    if let Err(e) = f.read_to_string(&mut buf) {
        let _ = writeln!(stderr(), "{}: {}", filename.display(), e);
        return None;
    }

    Some(parse_text(filename, &buf))
}
/// Parses the named file and returns contained directives.
///
/// If the file cannot be opened, `None` is returned and an error is printed
/// to `stderr`. If any errors are encountered during parsing, they are printed
/// to `stderr`.
Parses the named file and returns contained directives.
If the file cannot be opened, `None` is returned and an error is printed
to `stderr`. If any errors are encountered during parsing, they are printed
to `stderr`.
Parses the named file and returns contained directives . If the file cannot be opened ` None ` is returned and an error is printed to ` stderr ` . If any errors are encountered during parsing they are printed to ` stderr ` .
pub fn parse_file<P: ?Sized>(filename: &P) -> Option<Vec<Directive>>
        where P: AsRef<Path> {
    let filename = filename.as_ref();
    let mut f = match File::open(filename) {
        Ok(f) => f,
        Err(e) => {
            let _ = writeln!(stderr(), "linefeed: {}: {}", filename.display(), e);
            return None;
        }
    };
    let mut buf = String::new();
    if let Err(e) = f.read_to_string(&mut buf) {
        let _ = writeln!(stderr(), "{}: {}", filename.display(), e);
        return None;
    }
    Some(parse_text(filename, &buf))
}
pub fn parse_file < P : ? Sized > ( filename : & P ) -> Option < Vec < Directive > > where P : AsRef < Path > { let filename = filename . as_ref ( ) ; let mut f = match File :: open ( filename ) { Ok ( f ) => f , Err ( e ) => { let _ = writeln ! ( stderr ( ) " " filename display ( ) e ) ; return None ; } } ; let mut buf = String :: new ( ) ; if let Err ( e ) = f . read_to_string ( & mut buf ) { let _ = writeln ! ( stderr ( ) " " filename display ( ) e ) ; return None ; } Some ( parse_text ( filename , & buf ) ) }
Parses the named file and returns contained directives.
Parses the named file and returns contained directives .
filename
&P
filename
&P