Write colorized JSON output parsed from reader
(w io.Writer, r io.Reader, indent string)
| 22 | |
| 23 | // Write colorized JSON output parsed from reader |
| 24 | func Write(w io.Writer, r io.Reader, indent string) error { |
| 25 | dec := json.NewDecoder(r) |
| 26 | dec.UseNumber() |
| 27 | |
| 28 | var idx int |
| 29 | var stack []json.Delim |
| 30 | |
| 31 | if jsonWriter, ok := w.(JsonWriter); ok { |
| 32 | stack = append(stack, jsonWriter.Preface()...) |
| 33 | } |
| 34 | |
| 35 | for { |
| 36 | t, err := dec.Token() |
| 37 | if err == io.EOF { |
| 38 | break |
| 39 | } |
| 40 | if err != nil { |
| 41 | return err |
| 42 | } |
| 43 | |
| 44 | switch tt := t.(type) { |
| 45 | case json.Delim: |
| 46 | switch tt { |
| 47 | case '{', '[': |
| 48 | stack = append(stack, tt) |
| 49 | idx = 0 |
| 50 | fmt.Fprintf(w, "\x1b[%sm%s\x1b[m", colorDelim, tt) |
| 51 | if dec.More() { |
| 52 | fmt.Fprint(w, "\n", strings.Repeat(indent, len(stack))) |
| 53 | } |
| 54 | continue |
| 55 | case '}', ']': |
| 56 | stack = stack[:len(stack)-1] |
| 57 | idx = 0 |
| 58 | fmt.Fprintf(w, "\x1b[%sm%s\x1b[m", colorDelim, tt) |
| 59 | } |
| 60 | default: |
| 61 | b, err := marshalJSON(tt) |
| 62 | if err != nil { |
| 63 | return err |
| 64 | } |
| 65 | |
| 66 | isKey := len(stack) > 0 && stack[len(stack)-1] == '{' && idx%2 == 0 |
| 67 | idx++ |
| 68 | |
| 69 | var color string |
| 70 | if isKey { |
| 71 | color = colorKey |
| 72 | } else if tt == nil { |
| 73 | color = colorNull |
| 74 | } else { |
| 75 | switch t.(type) { |
| 76 | case string: |
| 77 | color = colorString |
| 78 | case bool: |
| 79 | color = colorBool |
| 80 | } |
| 81 | } |