Function JSONPath

utils/json.go:32–104

(out io.Writer, src io.Reader, colorize bool)

}

func JSONPath(out io.Writer, src io.Reader, colorize bool) (hasNextPage bool, endCursor string) {
	dec := json.NewDecoder(src)
	dec.UseNumber()

	s := &state{}
	postEmit := func() {
		if s.isObject {
			s.objectKey = ""
		} else if s.isArray {
			s.arrayIndex++
		}
	}

	color := func(c string, t interface{}) string {
		if colorize {
			return fmt.Sprintf("\033[%sm%s\033[m", c, t)
		} else if tt, ok := t.(string); ok {
			return tt
		} else {
			return fmt.Sprintf("%s", t)
		}
	}

	for {
		token, err := dec.Token()
		if err == io.EOF {
			break
		} else if err != nil {
			panic(err)
		}
		if delim, ok := token.(json.Delim); ok {
			switch delim {
			case '{':
				s = &state{isObject: true, parentState: s}
			case '[':
				s = &state{isArray: true, parentState: s}
			case '}', ']':
				s = s.parentState
				postEmit()
			default:
				panic("unknown delim")
			}
		} else {
			if s.isObject && s.objectKey == "" {
				s.objectKey = token.(string)
			} else {
				k := stateKey(s)
				fmt.Fprintf(out, "%s\t", color("0;36", k))

				switch tt := token.(type) {
				case string:
					fmt.Fprintf(out, "%s\n", strings.Replace(tt, "\n", "\\n", -1))
					if strings.HasSuffix(k, ".pageInfo.endCursor") {
						endCursor = tt
					}
				case json.Number:
					fmt.Fprintf(out, "%s\n", color("0;35", tt))
				case nil: