Function quoteArg

shells/quote.go:27–63

(arg string)

}

func quoteArg(arg string) string {
	argBytes := []byte(arg)

	needQuoting := false
	hasSingleQuote := false
	for _, c := range argBytes {
		switch {
		case c == '\'':
			needQuoting = true
			hasSingleQuote = true
		case checkNeedQuoting(c):
			needQuoting = true
		}
	}

	if !needQuoting {
		return arg
	}

	sb := strings.Builder{}
	if hasSingleQuote {
		sb.WriteByte('"')
		for _, c := range argBytes {
			if checkNeedQuoting(c) {
				sb.WriteByte('\\')
			}
			sb.WriteByte(c)
		}
		sb.WriteByte('"')
	} else {
		sb.WriteByte('\'')
		sb.WriteString(arg)
		sb.WriteByte('\'')
	}

	return sb.String()
}

func checkNeedQuoting(c byte) bool {
	switch c {