Allow variable identifiers to be conditionals

This aligns with the Python behaviour and pre-existing Jinja behaviour
where a variable expression can be used as a test for a conditional.
This was necessary to allow variable identifiers to be used in places
which was expecting a possible conditional expression, like in a if/else
expression.

diff --git a/grammar.ebnf b/grammar.ebnf
index beaf0d3849144c43dbe43085af676e3dc2aeb659..f51d34ce70561eff64f90380e3e7be577d4e5f65 100644 (file)
--- a/grammar.ebnf
+++ b/grammar.ebnf
@@ -222,6 +222,7 @@ conditional_expression
     | conditional_expression_logical\r
     | conditional_expression_comparator\r
     | conditional_expression_test\r
+    | variable_identifier\r
     ;\r
 \r
 conditional_expression_if\r