In a base template, {% block %} contents not rendered

[jpcima]

Hi, I believe there is rendering trouble with block functionality.
It's when this simple template is rendered: A{% block foo %}B{% endblock %}

Jinja result: AB
Jinja2Cpp: A

[jpcima]

What might be a fix, it has resolved the simplest cases.
jpcima@9110b93
It also breaks the unit tests, which I believe are wrong in the assumption of how block operates.

Trying to get unit tests matching python, I think I encountered another defect.

• the library strips newline after {% set %} statements

Example (FooBar vs Foo\nBar)

Foo{%set testVal='first entry' %}
Bar

[flexferrum]

Thanks for investigating!

Trying to get unit tests matching python, I think I encountered another defect.

I'm not sure this is a bug in Jinja2C++:

In the default configuration:

• a single trailing newline is stripped if present
• other whitespace (spaces, tabs, newlines etc.) is returned unchanged
  If an application configures Jinja to trim_blocks, the first newline after a template tag is removed automatically (like in PHP).

So, according to docs first newline char should stripped after the tag, which is mean that FooBar seems like a correct output.

[jpcima]

If an application configures Jinja to trim_blocks

Under my test programs, neither c++ or python were configured with trim_blocks.
They have it off by default.

When I set it on in python, I get FooBar indeed.
C++ doesn't care, it's giving FooBar regardless the setting is on or off.

[flexferrum]

Thanks! That's significant addition.

[flexferrum]

What might be a fix, it has resolved the simplest cases.
jpcima/Jinja2Cpp@9110b93
It also breaks the unit tests, which I believe are wrong in the assumption of how block operates.

Yes, this fix looks good.

[jpcima]

Yes, this fix looks good.

In fact, it isn't; it doesn't handle it in an intermediate template of 2 levels inheritance.
Consider the example.

A.txt: A{% block foo %}B{% endblock %}
B.txt: {% extends "A.txt" %}{% block foo %}C{% block bar %}D{% endblock %}{% endblock %}
C.txt: {% extends "B.txt" %}{% block bar %}E{% endblock %}

Py: AB, ACD, ACE
Cpp: AB, AC, ACE

[flexferrum]

Now block statement should work as expected.