Struct ironcalc_base::expressions::lexer::Lexer

pub struct Lexer { /* private fields */ }

Tokenize an input

Implementations

impl Lexer

pub fn new( formula: &str, mode: LexerMode, locale: &Locale, language: &Language ) -> Lexer

Creates a new Lexer that returns the tokens of a formula.

pub fn set_lexer_mode(&mut self, mode: LexerMode)

Changes the lexer mode

pub fn is_a1_mode(&self) -> bool

Returns true if mode is A1

pub fn get_formula(&self) -> String

Returns the formula

pub fn get_position(&self) -> i32

Returns the position of the lexer

pub fn set_formula(&mut self, content: &str)

Resets the formula

pub fn expect(&mut self, tk: TokenType) -> Result<(), LexerError>

Returns an error if the token is not the expected one.

pub fn peek_token(&mut self) -> TokenType

Checks the next token without advancing position See also advance_token

pub fn advance_token(&mut self)

Advances position. This is used in conjunction with peek_token It is a noop if the has not been a previous peek_token

pub fn next_token(&mut self) -> TokenType

Returns the next token

Trait Implementations

impl Clone for Lexer

fn clone(&self) -> Lexer

Returns a copy of the value.

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

Performs copy-assignment from source.