lexer

Documentation

Overview

Package lexer contains the code to lex input-programs into a stream of tokens, such that they may be parsed.

Index

• type Lexer
  • func New(input string) *Lexer
  • func (l *Lexer) GetLine() int
  • func (l *Lexer) NextToken() token.Token

Types

type Lexer

type Lexer struct {
	// contains filtered or unexported fields
}

Lexer holds our object-state.

func New

func New(input string) *Lexer

New a Lexer instance from string input.

func (*Lexer) GetLine

func (l *Lexer) GetLine() int

GetLine returns the rough line-number of our current position.

func (*Lexer) NextToken

func (l *Lexer) NextToken() token.Token

NextToken to read next token, skipping the white space.