Function modFlatten

gjson.go:3055–3095

@flatten an array with child arrays. [1,[2],[3,4],[5,[6,7]]] -> [1,2,3,4,5,[6,7]] The {"deep":true} arg can be provide for deep flattening. [1,[2],[3,4],[5,[6,7]]] -> [1,2,3,4,5,6,7] The original json is returned when the json is not an array.

(json, arg string)

//
// The original json is returned when the json is not an array.
func modFlatten(json, arg string) string {
	res := Parse(json)
	if !res.IsArray() {
		return json
	}
	var deep bool
	if arg != "" {
		Parse(arg).ForEach(func(key, value Result) bool {
			if key.String() == "deep" {
				deep = value.Bool()
			}
			return true
		})
	}
	var out []byte
	out = append(out, '[')
	var idx int
	res.ForEach(func(_, value Result) bool {
		var raw string
		if value.IsArray() {
			if deep {
				raw = unwrap(modFlatten(value.Raw, arg))
			} else {
				raw = unwrap(value.Raw)
			}
		} else {
			raw = value.Raw
		}
		raw = strings.TrimSpace(raw)
		if len(raw) > 0 {
			if idx > 0 {
				out = append(out, ',')
			}
			out = append(out, raw...)
			idx++
		}
		return true
	})
	out = append(out, ']')
	return bytesString(out)
}

// @keys extracts the keys from an object.
//