TypeError: can only concatenate str (not "Parser") to str

[symroe]

Describe the bug

parse.py contains the following on line 565 at time of writing:

yield P.fail("expected `{% if " + content + " %}`")

Some HTML input can cause content to be of type Parser not str, causing the error in the title.

I suspect there are two bugs here:

1. That the type of content can change seems to indicate a deeper bug than I'm able to understand at the moment. I think pulling at that thread will help with the "proper" fix
2. I'm not 100% sure the input file is wrong, so there might be a parser error that's causing this to be raised in the first place (see samples below).

Which terms did you search for in the documentation and issue tracker?

"concatenate"

Environment

• curlylint 0.13.1
• Python 3.10.7

Steps to reproduce

I have two samples:

To re-produce the actual bug

Write the below to example.html and then curlylint example.html with no other config

{% for area_url, area_name in areas %}
    {% if forloop.first %}
        <ul>
    {% endif %}
            <li><a href="{{ area_url }}">{{ area_name }}</a></li>
    {% if forloop.last %}
        </ul>
    {% endif %}
{% empty %}
    <p>
        No areas found of type {{ area_type.name }}.
    </p>
{% endfor %}

Stripped down example that I don't think should be an error

{% for area_url, area_name in areas %}
    {% if forloop.first %}
        <ul>
    {% endif %}
{% endfor %}

In this example, the <ul> is opened but not closed, however I don't think this should be a linting error...as you can see from the above example, it is closed later in the template.

(None of this is to say that the template is good, but I don't think it should raise this exception!)

Expected behavior

For sample 1, I think it shouldn't blow up. I fixed this by adding str() around content, but like I say, I think we should understand why content isn't a string already, like it's clearly expecting.

For sample 2: this might be more complex and could be punted to a different issue, but I don't think it should error.

To be clear in example 2, the error is "correct" in that I get

curlylint example.html
example.html
4:3 Parse error: expected one of 'autoescape', 'block', 'blocktrans', 'comment', 'filter', 'for', 'if', 'ifchanged', 'ifequal', 'ifnotequal', 'not an intermediate Jinja tag name', 'spaceless', 'verbatim', 'with' at 4:3  parse_error

Oh no! 💥 💔 💥
1 error reported

[uberfresh]

I have same issue here:

{% for s in status_list %}
  {% if s.name == "OPEN" %}
  <optgroup class="border-bottom border-primary"> 
  {% endif %} 
  <option {% if status == s.name %} selected {% endif %} >{{ s }}</option>
  {% if s.name == "CLOSED" %} 
  </optgroup> 
  {% endif %}
{% endfor %}