Struct erl_tokenize::tokens::KeywordToken

pub struct KeywordToken { /* fields omitted */ }

Keyword token.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::KeywordToken;
use erl_tokenize::values::Keyword;

let pos = Position::new();

// Ok
assert_eq!(KeywordToken::from_text("receive", pos.clone()).unwrap().value(), Keyword::Receive);
assert_eq!(KeywordToken::from_text("and  ", pos.clone()).unwrap().value(), Keyword::And);

// Err
assert!(KeywordToken::from_text("foo", pos.clone()).is_err());
assert!(KeywordToken::from_text("  and", pos.clone()).is_err());
assert!(KeywordToken::from_text("andfoo", pos.clone()).is_err());

Methods

impl KeywordToken

pub fn from_value(value: Keyword, pos: Position) -> Self

Makes a new KeywordToken instance from the value.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::KeywordToken;
use erl_tokenize::values::Keyword;

let pos = Position::new();
assert_eq!(KeywordToken::from_value(Keyword::Case, pos.clone()).text(), "case");

pub fn from_text(text: &str, pos: Position) -> Result<Self>

Tries to convert from any prefixes of the text to a KeywordToken.

pub fn value(&self) -> Keyword

Returns the value of this token.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::KeywordToken;
use erl_tokenize::values::Keyword;

let pos = Position::new();

assert_eq!(KeywordToken::from_text("receive", pos.clone()).unwrap().value(),
           Keyword::Receive);
assert_eq!(KeywordToken::from_text("and  ", pos.clone()).unwrap().value(),
           Keyword::And);

pub fn text(&self) -> &'static str

Returns the original textual representation of this token.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::KeywordToken;

let pos = Position::new();

assert_eq!(KeywordToken::from_text("receive", pos.clone()).unwrap().text(), "receive");
assert_eq!(KeywordToken::from_text("and  ", pos.clone()).unwrap().text(), "and");

Trait Implementations

impl PositionRange for KeywordToken

fn start_position(&self) -> Position

Returns the (inclusive) start position of this.

fn end_position(&self) -> Position

Returns the (exclusive) end position of this.

impl Clone for KeywordToken

fn clone(&self) -> KeywordToken

Returns a copy of the value.

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

Performs copy-assignment from source.

impl From<KeywordToken> for LexicalToken

fn from(f: KeywordToken) -> Self

Performs the conversion.

impl From<KeywordToken> for Token

fn from(f: KeywordToken) -> Self

Performs the conversion.

impl Display for KeywordToken

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

Formats the value using the given formatter.

impl Debug for KeywordToken

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

Formats the value using the given formatter.