token

Documentation

Index

• Constants
• type Pos
  • func (p Pos) IsValid() bool
• type Position
  • func (pos Position) String() string
• type Token
  • func SingleRune(r rune) (t Token)
  • func (tok Token) IsLiteral() bool
  • func (tok Token) IsOperator() bool
  • func (op Token) Precedence() int
  • func (tok Token) String() string

Constants

const (
	LowestPrec  = 0
	UnaryPrec   = 6
	HighestPrec = 7
)

Types

type Pos

type Pos int

const NoPos Pos = 0

func (Pos) IsValid

func (p Pos) IsValid() bool

type Position

type Position struct {
	Offset int
	Line   int
}

func (Position) String

func (pos Position) String() string

type Token

type Token int

const (
	ILLEGAL Token = iota
	EOF

	IDENT // Identifier
	FRML  // =
	BOOL  // TRUE|FALSE
	CELL  // Cell reference
	ERR   // #ERROR!
	ERREF // #REF!
	//FUNC  // Built-in functions
	RNG
	REF
	SHEET  // Sheet name
	INT    // 12345
	FLOAT  // 123.45
	IMAG   // 123.45i
	STRING // "abc"

	ADD // +
	SUB // -
	MUL // *
	QUO // /
	EXP // ^

	LAND // And
	LOR  // Or

	EQL // =
	LSS // <
	GTR // >
	NOT // <>

	LEQ // <=
	GEQ // >=

	LPAREN // (
	LBRACK // [
	LBRACE // {
	COMMA  // ,
	PERIOD // .

	RPAREN    // )
	RBRACK    // ]
	RBRACE    // }
	SEMICOLON // ;
	COLON     // :

)

func SingleRune

func SingleRune(r rune) (t Token)

func (Token) IsLiteral

func (tok Token) IsLiteral() bool

func (Token) IsOperator

func (tok Token) IsOperator() bool

func (Token) Precedence

func (op Token) Precedence() int

func (Token) String

func (tok Token) String() string