Trait nom::lib::std::fmt::Display

pub trait Display {
    pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>;
}

Format trait for an empty format, {}.

Display is similar to Debug, but Display is for user-facing output, and so cannot be derived.

For more information on formatters, see the module-level documentation.

Examples

Implementing Display on a type:

use std::fmt;

struct Point {
    x: i32,
    y: i32,
}

impl fmt::Display for Point {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "({}, {})", self.x, self.y)
    }
}

let origin = Point { x: 0, y: 0 };

assert_eq!(format!("The origin is: {}", origin), "The origin is: (0, 0)");

Required methods

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

Examples

use std::fmt;

struct Position {
    longitude: f32,
    latitude: f32,
}

impl fmt::Display for Position {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "({}, {})", self.longitude, self.latitude)
    }
}

assert_eq!("(1.987, 2.983)",
           format!("{}", Position { longitude: 1.987, latitude: 2.983, }));

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Implementations on Foreign Types

impl<T> Display for SendError<T>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for IpAddr

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl Display for AddrParseError

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NulError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for IntoStringError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for TrySendError<T>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for JoinPathsError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Ipv4Addr

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl Display for AccessError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<W> Display for IntoInnerError<W>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for VarError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'_, T> Display for RwLockReadGuard<'_, T> where
    T: Display + ?Sized, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'_, T> Display for RwLockWriteGuard<'_, T> where
    T: Display + ?Sized, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for SystemTimeError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Backtrace

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl Display for RecvTimeoutError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for SocketAddrV4

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for TryLockError<T>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'_, T> Display for MutexGuard<'_, T> where
    T: Display + ?Sized, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for PoisonError<T>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for StripPrefixError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Ipv6Addr

Write an Ipv6Addr, conforming to the canonical style described by RFC 5952.

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'_> Display for Display<'_>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Error

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl Display for RecvError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for ExitStatus

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for SocketAddr

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for FromVecWithNulError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for FromBytesWithNulError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for SocketAddrV6

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for TryRecvError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for u16

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for ToUppercase

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for usize

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for i64

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for CharTryFromError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for EscapeDefault

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for ParseCharError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroI64

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroI8

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for ToLowercase

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for TryFromIntError

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroU8

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for BorrowError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'_, T> Display for Ref<'_, T> where
    T: Display + ?Sized, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroU32

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroI32

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<P> Display for Pin<P> where
    P: Display, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroU128

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for u8

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroU64

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroI16

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for isize

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for BorrowMutError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for i32

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for ParseIntError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for bool

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for EscapeDebug

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for i16

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for TryFromSliceError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'_> Display for PanicInfo<'_>

pub fn fmt(&self, formatter: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroUsize

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for EscapeDefault

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Utf8Lossy

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'_, T> Display for &'_ mut T where
    T: Display + ?Sized, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for EscapeUnicode

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for Wrapping<T> where
    T: Display, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroI128

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroU16

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for !

pub fn fmt(&self, &mut Formatter<'_>) -> Result<(), Error>

impl Display for u32

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'_, T> Display for &'_ T where
    T: Display + ?Sized, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for DecodeUtf16Error

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for i128

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'_> Display for Location<'_>

pub fn fmt(&self, formatter: &mut Formatter<'_>) -> Result<(), Error>

impl Display for u128

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for u64

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'_, T> Display for RefMut<'_, T> where
    T: Display + ?Sized, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for ParseFloatError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for f64

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl Display for i8

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for str

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for char

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for NonZeroIsize

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for f32

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for Rc<T> where
    T: Display + ?Sized, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for Arc<T> where
    T: Display + ?Sized, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<R> Display for BitMask<R> where
    R: BitRegister, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<O, V> Display for BitArray<O, V> where
    O: BitOrder,
    V: BitView, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<O, T> Display for BitBox<O, T> where
    O: BitOrder,
    T: BitStore, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<O, T> Display for BitSlice<O, T> where
    O: BitOrder,
    T: BitStore, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<R> Display for BitPos<R> where
    R: BitRegister, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<O, T> Display for BitVec<O, T> where
    O: BitOrder,
    T: BitStore, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<R> Display for BitIdx<R> where
    R: BitRegister, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<R> Display for BitTail<R> where
    R: BitRegister, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<R> Display for BitSel<R> where
    R: BitRegister, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for FmtUpperExp<T> where
    T: Display + UpperExp, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for FmtPointer<T> where
    T: Display + Pointer, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for FmtLowerExp<T> where
    T: Display + LowerExp, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for FmtOctal<T> where
    T: Display + Octal, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for FmtUpperHex<T> where
    T: Display + UpperHex, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for FmtBinary<T> where
    T: Display + Binary, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for FmtLowerHex<T> where
    T: Display + LowerHex, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for FmtDisplay<T> where
    T: Display, 

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Display for CapacityError<T>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<A> Display for ArrayString<A> where
    A: Array<Item = u8> + Copy, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Error

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Regex

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Shows the original regular expression.

impl Display for Regex

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Shows the original regular expression.

impl Display for Error

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Error

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for UnicodeWordError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for ErrorKind

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Error

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for ErrorKind

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Error

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for CaseFoldError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Ast

Print a display representation of this Ast.

This does not preserve any of the original whitespace formatting that may have originally been present in the concrete syntax from which this Ast was generated.

This implementation uses constant stack space and heap space proportional to the size of the Ast.

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Hir

Print a display representation of this Hir.

The result of this is a valid regular expression pattern string.

This implementation uses constant stack space and heap space proportional to the size of the Hir.

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

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Implementors

impl Display for TryReserveError

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Infallible

pub fn fmt(&self, &mut Formatter<'_>) -> Result<(), Error>

impl Display for AllocError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for LayoutError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for nom::lib::std::fmt::Error

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for ParseBoolError

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for Utf8Error

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for FromUtf8Error

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for FromUtf16Error

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl Display for String

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'_> Display for Arguments<'_>

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

impl<'_, B> Display for Cow<'_, B> where
    B: Display + ToOwned + ?Sized,
    <B as ToOwned>::Owned: Display, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'a> Display for nom::lib::std::str::EscapeDebug<'a>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'a> Display for nom::lib::std::str::EscapeDefault<'a>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<'a> Display for nom::lib::std::str::EscapeUnicode<'a>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<E> Display for Err<E> where
    E: Debug, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<I: Display> Display for nom::error::Error<I>

The Display implementation allows the std::error::Error implementation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<I: Display> Display for VerboseError<I>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<T, A> Display for Box<T, A> where
    T: Display + ?Sized,
    A: Allocator, 

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

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