{% macro header_title_link(href, text, mode) -%}
{% set full = text | trim %}
{% if mode == 'contract-vowels' %}
<a href="{{ href | e }}" aria-label="{{ full | e }}">
  {%- for c in full -%}
    {%- if (c | lower) in 'aeiou' -%}
      <span class="plugin-contract-vowels__vowel">{{ c | e }}</span>
    {%- elif c == ' ' -%}
      {{ c }}
    {%- else -%}
      <span class="plugin-contract-vowels__cons">{{ c | e }}</span>
    {%- endif -%}
  {%- endfor -%}
</a>
{% else %}
<a href="{{ href | e }}">{{ full | e }}</a>
{% endif %}
{%- endmacro %}