Fix #12, space before optional.

Author: treeform

src/jsony.nim

@@ -341,6 +341,7 @@ proc parseHook*[T: object|ref object](s: string, i: var int, v: var T) =
 
 proc parseHook*[T](s: string, i: var int, v: var Option[T]) =
   ## Parse an Option.
+  eatSpace(s, i)
   if i + 3 < s.len and s[i+0] == 'n' and s[i+1] == 'u' and s[i+2] == 'l' and s[i+3] == 'l':
     i += 4
     return

tests/test_options.nim

@@ -34,3 +34,12 @@ type Entry = object
   color: string
 
 check(Entry())
+
+type
+  Test = object
+    key: Option[int]
+var test = """{ "key": null }""".fromJson(Test)
+doAssert test.key.isNone == true
+var test2 = """{ "key": 2 }""".fromJson(Test)
+doAssert test2.key.isNone == false
+doAssert test2.key.get == 2