token

package

v0.0.0-...-2c802aa Latest Latest Go to latest Published: Nov 26, 2019 License: MIT Imports: 1 Imported by: 0

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Package token provides tokens for parsing the regular expressions.

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type Token struct {
	V  rune // token value
	Ty Type // token type
}

Token represents a token.

func NewToken(value rune, k Type) *Token

NewToken returns a new Token.

func (t *Token) String() string

type Type int

Type is integer to identify the type of token.

const (
	CHARACTER Type = iota
	UNION
	STAR
	PLUS
	QUESTION
	ANY
	LPAREN
	RPAREN
	EOF
)

Each token is identified by a unique integer.

func (k Type) String() string