Some small doc fixes

This cleans up a number of doc warnings, including a bad
underline for zero?

While there, added a nil? function to match up with the
new nil is None.

Also un-hid myself from coreteam.

docs/conf.py

@@ -67,7 +67,7 @@ release = hy.__version__
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
-exclude_patterns = ['_build']
+exclude_patterns = ['_build', 'coreteam.rst']
 
 # The reST default role (used for this markup: `text`) to use for all documents.
 #default_role = None

docs/index.rst

@@ -19,17 +19,17 @@ Meet our mascot, "Cuddles":
 .. image:: http://fc07.deviantart.net/fs70/i/2013/138/f/0/cuddles_the_hacker_by_doctormo-d65l7lq.png
    :alt: Paul riding cuddles into the distance
 
-
-..   Our old ascii art mascot version
-..   Retained as an easter egg for those who read the docs via .rst!
 ..
-..   LET'S CUDDLEFISH
-..              ______
-..       _.----'#'  # '
-..     ,'  #'    ,#  ;
-..    ('   (w)  _,-'_/
-..   /// / /'.____.'
-..   \|\||/
+   Our old ascii art mascot version
+   Retained as an easter egg for those who read the docs via .rst!
+
+     LET'S CUDDLEFISH
+                ______
+         _.----'#'  # '
+       ,'  #'    ,#  ;
+      ('   (w)  _,-'_/
+     /// / /'.____.'
+     \|\||/
 
 
 You can try Hy `in your browser <https://try-hy.appspot.com>`_.

docs/language/core.rst

@@ -242,6 +242,36 @@ Raises ``TypeError`` if ``(not (numeric? x))``.
    => (neg? 0)
    False
 
+
+.. _nil?-fn:
+
+nil?
+-----
+
+Usage: ``(nil? x)``
+
+Return True if x is nil/None.
+
+.. code-block:: clojure
+
+   => (nil? nil)
+   True
+
+   => (nil? None)
+   True
+
+   => (nil? 0)
+   False
+
+   => (setf x nil)
+   => (nil? x)
+   True
+
+   => ;; list.append always returns None
+   => (nil? (.append [1 2 3] 4))
+   True
+
+
 .. _none?-fn:
 
 none?
@@ -397,7 +427,7 @@ Return True if x is a string.
 .. _zero?-fn:
 
 zero?
-----
+-----
 
 Usage: ``(zero? x)``
 

hy/core/language.hy

@@ -160,6 +160,10 @@
   "Return true if x is None"
   (is x None))
 
+(defn nil? [x]
+  "Return true if x is nil (None)"
+  (is x None))
+
 (defn numeric? [x]
   (import numbers)
   (instance? numbers.Number x))
@@ -253,5 +257,5 @@
 (def *exports* '[cycle dec distinct drop drop-while empty? even? filter flatten
                  float? gensym
                  inc instance? integer integer? iterable? iterate iterator? neg?
-                 none? nth numeric? odd? pos? remove repeat repeatedly second
+                 nil? none? nth numeric? odd? pos? remove repeat repeatedly second
                  string string? take take-nth take-while zero?])

scripts/update_coreteam.py

@@ -19,7 +19,6 @@ MISSING_NAMES = {
 # an owner of the organization.
 CONCEALED_MEMBERS = [
     ('aldeka', 'Karen Rustad'),
-    ('rwtolbert', 'Bob Tolbert'),
     ('tuturto', 'Tuukka Turto'),
 ]
 

tests/native_tests/core.hy

@@ -293,6 +293,15 @@
   (assert-false (none? 0))
   (assert-false (none? "")))
 
+(defn test-nil? []
+  "NATIVE: testing for `is nil`"
+  (assert-true (nil? nil))
+  (assert-true (nil? None))
+  (setv f nil)
+  (assert-true (nil? f))
+  (assert-false (nil? 0))
+  (assert-false (nil? "")))
+
 (defn test-nth []
   "NATIVE: testing the nth function"
   (assert-equal 2 (nth [1 2 4 7] 1))