Function checkComplete

kernel.go:385–415

checkComplete checks whether the `code` is complete or not.

(code string, ir *interp.Interp)

// checkComplete checks whether the `code` is complete or not.
func checkComplete(code string, ir *interp.Interp) (status, indent string) {
	status, indent = "unknown", ""

	if len(code) == 0 {
		return status, indent
	}
	readline := base.MakeBufReadline(bufio.NewReader(strings.NewReader(code)))
	for {
		_, _, err := base.ReadMultiline(readline, base.ReadOptions(0), "")
		if err == io.EOF {
			return "complete", indent
		} else if err == io.ErrUnexpectedEOF {
			return "incomplete", indent
		} else if err != nil {
			return "invalid", indent
		}
	}

	var parser mp.Parser
	g := ir.Comp
	parser.Configure(g.ParserMode, g.MacroChar)
	parser.Init(g.Fileset, g.Filepath, g.Line, []byte(code))

	_, err := parser.Parse()
	if err != nil {
		status = "invalid"
	} else {
		status = "complete"
	}
	return status, indent
}

// handleIsCompleteRequest sends a is_complete_reply message.
func (kernel *Kernel) handleIsCompleteRequest(receipt msgReceipt) error {