scanner

package

v0.2.0 Latest Latest Go to latest Published: Feb 18, 2026 License: Apache-2.0 Imports: 4 Imported by: 0

Details

Package scanner implements a tokeniser for lua. Inspired by https://talks.golang.org/2011/lex.slide#1

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type Option func(*Scanner)

func ForNumber() Option

Specializes in scanning a number, used in file:read("n")

func WithReservedGlobal() Option

WithReservedGlobal makes "global" a reserved keyword (emitted as KwGlobal). By default "global" is a soft keyword handled by the parser.

func WithStartLine(l int) Option

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

Scanner holds the state of the scanner.

func New(name string, input []byte, opts ...Option) *Scanner

New creates a new scanner for the input string.

func (l *Scanner) ErrorMsg() string

ErrorMsg returns the current error message or an empty string if there is none.

func (l *Scanner) Scan() *token.Token

Scan returns the next item from the input (or nil)