Enum wagon_lexer::productions::Productions

pub enum Productions {
    Identifier(Ident),
    LitString(String),
    LBr,
    RBr,
    LCur,
    RCur,
    LPar,
    RPar,
    Lt,
    Gt,
    Semi,
    Colon,
    Comma,
    Path(String),
    Produce,
    Generate,
    Alternative,
    Additional,
    Import(ImportType),
    LitRegex(String),
    Ebnf(EbnfType),
}

Lexer for the grammar DSL.

Variants

Identifier(Ident)

An identifier. Gets parsed to an [wagon-ident::Ident] automatically. An identifier may be any string of alphanumeric characters, as well as _. The string must start with a purely alphabetical character. The identifier may be prepended by $/&/* to specify what type of identifier it is.

LitString(String)

A string, surrounded by either " or '.

LBr

[

RBr

]

LCur

{

RCur

}

LPar

(

RPar

)

Lt

<

Gt

>

Semi

;

Colon

:

Comma

,

Path(String)

A Rust style path.

Produce

->

Generate

=>

Alternative

|

Additional

&

Import(ImportType)

Any of the possible ImportType arrows.

LitRegex(String)

A regular expression (defined as any string between two /).

Ebnf(EbnfType)

Any of the possible EbnfType operators.

Trait Implementations

impl Clone for Productions

fn clone(&self) -> Productions

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Productions

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

Formats the value using the given formatter.

impl Display for Productions

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

Formats the value using the given formatter.

impl<'s> Logos<'s> for Productions

type Error = LexingError

Error type returned by the lexer. This can be set using #[logos(error = MyError)]. Defaults to () if not set.

type Extras = ()

Associated type Extras for the particular lexer. This can be set using #[logos(extras = MyExtras)] and accessed inside callbacks.

type Source = str

Source type this token can be lexed from. This will default to str, unless one of the defined patterns explicitly uses non-unicode byte values or byte slices, in which case that implementation will use [u8].

fn lex(lex: &mut Lexer<'s, Self>)

The heart of Logos. Called by the Lexer. The implementation for this function is generated by the logos-derive crate.

fn lexer_with_extras( source: &'source Self::Source, extras: Self::Extras ) -> Lexer<'source, Self>

Create a new instance of a Lexer with the provided Extras that will produce tokens implementing this Logos.

impl PartialEq for Productions

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

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

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Productions

impl StructuralPartialEq for Productions