Fix double colon (#216)

[etc/vim.git] / README.md

diff --git a/README.md b/README.md
index ed69cb835eafe07da148e13bdfe118514fab0690..e192826c6475fd940095b0999a21d1861eca84ed 100644 (file)
--- a/README.md
+++ b/README.md
@@ -340,7 +340,19 @@ interesting cases:
 
 In those cases, parentheses are removed when the entire statement fits
 in one line, or if the inner expression doesn't have any delimiters to
-further split on.  Otherwise, the parentheses are always added.
+further split on.  If there is only a single delimiter and the expression
+starts or ends with a bracket, the parenthesis can also be successfully
+omitted since the existing bracket pair will organize the expression
+neatly anyway.  Otherwise, the parentheses are added.
+
+Please note that *Black* does not add or remove any additional nested
+parentheses that you might want to have for clarity or further
+code organization.  For example those parentheses are not going to be
+removed:
+```py3
+return not (this or that)
+decision = (maybe.this() and values > 0) or (maybe.that() and values < 0)
+```
 
 ### Call chains
 
@@ -348,7 +360,7 @@ Some popular APIs, like ORMs, use call chaining.  This API style is known
 as a [fluent interface](https://en.wikipedia.org/wiki/Fluent_interface).
 *Black* formats those treating dots that follow a call or an indexing
 operation like a very low priority delimiter.  It's easier to show the
-behavior than to explain it.  Look at the example::
+behavior than to explain it.  Look at the example:
 ```py3
 def example(session):
     result = (
@@ -641,6 +653,9 @@ More details can be found in [CONTRIBUTING](CONTRIBUTING.md).
 * fixed non-deterministic formatting when multiple pairs of removable parentheses
   were used (#183)
 
+* fixed multiline strings being unnecessarily wrapped in optional
+  parentheses in long assignments (#215)
+
 * fixed not splitting long from-imports with only a single name
 
 * fixed Python 3.6+ file discovery by also looking at function calls with