Merge pull request #2 from freezeboy/allowFalseDefault

Update ArgRead instance to allow "f" symbol for Bools
tanakh · Aug 5, 2020 · ae426b2 · ae426b2
2 parents 4bb606f + 97d04d4
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diff --git a/ChangeLog.md b/ChangeLog.md
@@ -1,3 +1,7 @@
+# HEAD
+
+- Allow False as a default value for Bool arguments
+
 # 0.3.0
 
 - Simplify API

diff --git a/src/Options/Declarative.hs b/src/Options/Declarative.hs
@@ -112,6 +112,7 @@ instance ArgRead String where
 
 instance ArgRead Bool where
     argRead Nothing = Just False
+    argRead (Just "f") = Just False
     argRead (Just "t") = Just True
     argRead _ = Nothing