Method LoadFile

auxlib.go:352–390

* }}} */ * load and function call operations {{{ */

(path string)

/* load and function call operations {{{ */

func (ls *LState) LoadFile(path string) (*LFunction, error) {
	var file *os.File
	var err error
	if len(path) == 0 {
		file = os.Stdin
	} else {
		file, err = os.Open(path)
		defer file.Close()
		if err != nil {
			return nil, newApiErrorE(ApiErrorFile, err)
		}
	}

	reader := bufio.NewReader(file)
	// get the first character.
	c, err := reader.ReadByte()
	if err != nil && err != io.EOF {
		return nil, newApiErrorE(ApiErrorFile, err)
	}
	if c == byte('#') {
		// Unix exec. file?
		// skip first line
		_, err, _ = readBufioLine(reader)
		if err != nil {
			return nil, newApiErrorE(ApiErrorFile, err)
		}
	}

	if err != io.EOF {
		// if the file is not empty,
		// unread the first character of the file or newline character(readBufioLine's last byte).
		err = reader.UnreadByte()
		if err != nil {
			return nil, newApiErrorE(ApiErrorFile, err)
		}
	}

	return ls.Load(reader, path)
}

func (ls *LState) LoadString(source string) (*LFunction, error) {
	return ls.Load(strings.NewReader(source), "<string>")