Enum media_type_impl_utils::quoted_string::FWSState

pub enum FWSState {
    HitCr,
    HitNl,
    HadFws,
}

A enum to represent the sate in a quoted string parser for specifications with FWS

FWS are forward white spaces, they can appear in media-types in the mime specification a FWS is a "\r\n" seq followed by either ' ' or '\t'.

Variants

HitCr

the state after the first '\r'

HitNl

the state after "\r\n"

HadFws

the state after "\r\n " or "\r\n\t" + any number of ws chars

Methods

impl FWSState

pub fn advance<Impl: MimeParsingExt>(
    self,
    bch: PartialCodePoint
) -> Result<(State<Impl>, bool), CoreError>

default implementation for handing FWSState state transitions

Handles the state transition wrt. a given MimeParsingExt implementation. It assures that after a \r only \n can follow and after a \n either ' ' or '\t' has to follow. Lastly it makes sure that between two FWS there has to be at last one non ws character (at last in the non obs grammar).

Trait Implementations

impl Clone for FWSState

fn clone(&self) -> FWSState

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for FWSState

impl Eq for FWSState

impl PartialEq<FWSState> for FWSState

fn eq(&self, other: &FWSState) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Debug for FWSState

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

Formats the value using the given formatter.

impl Hash for FWSState

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].