Replace string with template output in Jinja2

Question

In Pelican, a page's content is passed to the Jinja2 template as page.content. Let's assume that page.content contains a string {REPLACEME}. How can I now replace this string {REPLACEME} with the result from some template logic, say

{% for pub in publications %}
  {% set key, year, text, bibtex, doi, url, pdf, slides, poster = pub %}
  {% if "%s"|format(year) == "%s"|format(yr) %}
    <li id="{{ key }}">{{ text }}</li>
  {% endif %}
{% endfor %}

The idea is that I want to use template logic to render a list of items, but still be able to decide where this list should appear within the page.content.

I know that there is a replace() filter in Jinja2, but I cannot figure out how to make the new argument contain the template ouptut from above.

Answer 1

Turns out there's macros in Jinja2.

{% macro bibtex_rendered() -%}
  {% for pub in publications %}
    {% set key, year, text, bibtex, doi, url, pdf, slides, poster = pub %}
    {% if "%s"|format(year) == "%s"|format(yr) %}
      <li id="{{ key }}">{{ text }}</li>
    {% endif %}
  {% endfor %}
{%- endmacro %}

Then I can use the defined macro in my call to replace:

    {{ page.content | replace("{PUBLICATIONS}", bibtex_rendered()) }}