{% blocktrans with value as variable %} syntax cannot parse literal values passed through filters

[Alun Bestor]

As a contrived example:

{% blocktrans with "String Literal"|lower as lowercase_string %}Here is a lowercase string: {{ lowercase_string }}{% endblocktrans %}

This example will fail in Django 1.1 and 1.2 trunk with:

TemplateSyntaxError: variable bindings in 'blocktrans' must be 'with value as variable'

The example will be parsed successfully if the filter is omitted, or if the filtered value is a context variable instead of a literal (e.g. string_var|lower).

One workaround for the parsing problem would be to use the following code:

{% with "String Literal"|lower as lowercase_string %}
{% blocktrans with lowercase_string as lowercase_string %}Here is a lowercase string: {{ lowercase_string }}{% endblocktrans %}
{‰ endwith %}

(In the contrived example it is of course unnecessary to use the lower filter on a literal value; the actual case came up with a custom filter which processes a value differently depending on active settings.)

[Aymeric Augustin]

Change UI/UX from NULL to False.

[Aymeric Augustin]

Change Easy pickings from NULL to False.

[Aymeric Augustin]

Duplicate of #5971, fixed in b459f5b7e3be65bbd554e03626ff255d4a68e9fc.