Add addtional valid ISO8601 formats.

timeutils.nim

@@ -1,10 +1,17 @@
 import times
 
 const zeroTime = fromUnix(0)
-const ISO_8601_FULL_FORMAT = "yyyy-MM-dd'T'HH:mm:sszzz"
+const ISO_8601_FORMATS = @[
+  "yyyy-MM-dd'T'HH:mm:ssz",
+  "yyyy-MM-dd'T'HH:mm:sszzz",
+  "yyyy-MM-dd'T'HH:mm:ss'.'fffzzz",
+  "yyyy-MM-dd HH:mm:ssz",
+  "yyyy-MM-dd HH:mm:sszzz",
+  "yyyy-MM-dd HH:mm:ss'.'fffzzz"
+]
 
 proc format*(ti: TimeInterval, fmt: string): string =
-  let info = (fromUnix(0) + ti).utc
+  let info = (zeroTime + ti).utc
   return info.format(fmt)
 
 # Will be deprecated in Nim 0.18.1 as it will exist in the standard times module.
@@ -48,10 +55,14 @@ proc startOfWeek*(ti: DateTime, startDay = dMon): DateTime =
   return (ti - diff.days).startOfDay
 
 proc parseIso8601*(val: string): DateTime =
-  return val.parse(ISO_8601_FULL_FORMAT)
+  var errString = ""
+  for df in ISO_8601_FORMATS:
+    try: return val.parse(df)
+    except: errString &= "\n" & getCurrentExceptionMsg()
+  raise newException(Exception, "Could not parse date. Tried:" & errString)
 
 proc formatIso8601*(d: DateTime): string =
-  return d.format(ISO_8601_FULL_FORMAT)
+  return d.format(ISO_8601_FORMATS[2])
 
 # This is a workaround needed due a bug in Nim's times.parse procedure.
 # see: https://github.com/nim-lang/Nim/issues/4922

timeutils.nimble

@@ -1,8 +1,8 @@
 # Package
 
-version       = "0.4.0"
+version       = "0.5.1"
 author        = "Jonathan Bernard"
-description   = "Utility methods to fill in the lacking time support in Nim\'s stdlib. This is holding me over until I can write a proper time module for the stdlib and submit it."
+description   = "Utility methods to fill in the lacking time support in Nim\'s stdlib."
 license       = "BSD3"
 
 # Dependencies