diff options
Diffstat (limited to 'lib/pure/json.nim')
| -rw-r--r-- | lib/pure/json.nim | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/pure/json.nim b/lib/pure/json.nim index bbde4db5f..912cd6837 100644 --- a/lib/pure/json.nim +++ b/lib/pure/json.nim @@ -734,7 +734,7 @@ proc getFields*(n: JsonNode, else: return n.fields proc getElems*(n: JsonNode, default: seq[JsonNode] = @[]): seq[JsonNode] = - ## Retrieves the int value of a `JArray JsonNode`. + ## Retrieves the array of a `JArray JsonNode`. ## ## Returns ``default`` if ``n`` is not a ``JArray``, or if ``n`` is nil. if n.isNil or n.kind != JArray: return default @@ -964,6 +964,16 @@ proc `{}`*(node: JsonNode, keys: varargs[string]): JsonNode = return nil result = result.fields.getOrDefault(key) +proc `{}`*(node: JsonNode, index: varargs[int]): JsonNode = + ## Traverses the node and gets the given value. If any of the + ## indexes do not exist, returns ``nil``. Also returns ``nil`` if one of the + ## intermediate data structures is not an array. + result = node + for i in index: + if isNil(result) or result.kind != JArray or i >= node.len: + return nil + result = result.elems[i] + proc getOrDefault*(node: JsonNode, key: string): JsonNode = ## Gets a field from a `node`. If `node` is nil or not an object or ## value at `key` does not exist, returns nil |