Files
Nim/lib
Euan d932cb1e51 Adding isNilOrEmpty and isNilOrWhitespace
As discussed in #4184, this patch adds `isNilOrEmpty` and
`isNilOrWhitespace` to `strutils`.

It also modifies the existing `isSpace` proc slightly to exit early
rather than looping through all characters in a string.
2016-06-24 10:18:46 +01:00
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