September Morn Update

Task/Increment-a-numerical-string/Python/increment-a-numerical-string-2.py

@@ -0,0 +1,36 @@
+# Dropping or keeping any non-numerics in the string
+
+
+# succString :: Bool -> String -> String
+def succString(blnPruned):
+    def go(x):
+        try:
+            return [str(1 + (float(x) if '.' in x else int(x)))]
+        except ValueError:
+            return [] if blnPruned else [x]
+    return lambda s: ' '.join(concatMap(go)(s.split()))
+
+
+# TEST ----------------------------------------------------
+def main():
+    print(
+        '\n'.join(
+            [succString(bln)(
+                '41.0 pine martens in 1491 -1.5 mushrooms ≠ 136'
+            ) for bln in [False, True]]
+        )
+    )
+
+
+# GENERIC ---------------------------------------------------
+
+# concatMap :: (a -> [b]) -> [a] -> [b]
+def concatMap(f):
+    return lambda xs: (
+        [ys[0] for ys in [f(x) for x in xs] if ys]
+    )
+
+
+# MAIN ---
+if __name__ == '__main__':
+    main()