Added support for brackets in boolean expressions (#165)

* added support for brackets in boolean expressions * more descriptive error messages * use array slices * added test for nested expressions * removed brackets validation step * address code review comments * added doc comment * simplify expression spec * fixed docs
2018-09-21 22:07:28 +03:00
parent 7ed95aec91
commit 2c3962a3de
4 changed files with 140 additions and 29 deletions
--- a/docs/builtins.rst
+++ b/docs/builtins.rst
@@ -149,6 +149,19 @@ Will be treated as:

    one or (two and three)

+You can use parentheses to change operator precedence. For example:
+
+.. code-block:: html+django
+
+    {% if (one or two) and three %}
+
+Will be treated as:
+
+.. code-block:: text
+
+    (one or two) and three
+
+
 ``==`` operator
 """""""""""""""