How to ensure proper closing of tags when truncating HTML with the `truncatechars_html` filter?
In website content operation, we often need to truncate the long article content displayed on list pages, abstracts, or card views to maintain the cleanliness and consistency of the page.However, when this content contains HTML tags (such as paragraphs `<p>`, links `<a>`, bold `<strong>`, images `<img>`, etc.), simple string truncation often leads to problems: it may truncate the tags in the middle, causing the page to display incorrectly, and even destroying the entire page's HTML structure.