Notice: This plugin interface and documentation are currently available only in Portuguese. English translation is planned for a future update.
For a long time, when I thought about FAQs in WordPress, the most common solution always seemed to be the same: create a specific block, use a ready-made plugin, or add separate fields for questions and answers. All of these work, but in many cases, they also add more interface, more complexity, and more dependence on a rigid structure.
I wanted a simple way to allow someone to edit a post or page normally in WordPress and, within that content, signal what was a question and what was an answer—without needing to learn a new interface, without depending on custom blocks, and without turning the editing process into something locked down.
From this need, Nousk FAQ was born: a plugin that interprets markers written directly in the content and transforms those snippets into an expandable FAQ on the front-end.
In this post, I want to show the idea behind the plugin, how it works, why I chose to use parsing, and why, to me, this type of solution represents much more than just a “show/hide” effect.
What this plugin represents to me
This plugin isn’t just important because it solves a FAQ. It’s important because it shows a shift in mindset. Instead of just thinking about displaying data, I had to think about how to interpret content, impose editorial rules, validate structure, transform text into meaning, and only then render an interface.
This type of project interests me deeply because it brings together the areas of development I enjoy most:
- WordPress architecture
- Plugin development
- Validation logic
- Parsing
- Front-end execution
- Editorial experience
- Semantics
It’s the kind of solution that is born from a real problem and becomes more sophisticated as the needs become clearer.
The problem I wanted to solve
The need seemed simple: I needed a FAQ. But I didn’t want a FAQ tied to a heavy interface, full of separate fields, providing a poor experience for those who edit content daily. In many scenarios, the person writing a post wants to keep using the standard WordPress editor, with text before, text after, and a specific block of questions and answers in the middle.
So the real question wasn’t “how to create an accordion on the front-end.” It was: how to allow the editor to write content normally while signaling a FAQ structure in a simple, predictable, and validatable way. This completely changes the solution. Instead of thinking about the visuals first, I had to think about content, editorial rules, validation, and interpretation.
The core idea of the plugin
The base of the plugin is straightforward. When the FAQ is activated on a post or page, the content can contain specific markers:
`nsk-faq-inicio:` (start)
`nsk-perg:` (question)
`nsk-resp:` (answer)
`nsk-faq-fim:` (end)
These markers tell the plugin where the FAQ starts, where it ends, what is a question, and what is an answer.
An example of content would look like this:
Standard introductory text.
nsk-faq-inicio:
nsk-perg:
What does this plugin do?
nsk-resp:
It transforms marked content into an interactive FAQ.
nsk-perg:
Can I use multiple paragraphs?
nsk-resp:
Yes.
You can use multiple paragraphs normally here.
nsk-faq-fim:
Final post text.
In the WordPress dashboard, the person writes normally. On the front-end, this snippet is automatically converted into an accordion. This allowed me to maintain two very important things at once: simplicity for the editor and technical control for the developer.
The writer doesn’t need to change their way of thinking. They stay within the content editor, but with a clear convention. The editorial team gains autonomy, and development gains a predictable structure to interpret.
The role of the parser
If I had to summarize the function of the parser simply, I’d say: The parser reads content and understands that rules exist within it.
In this plugin, the WordPress content is not treated just as a block of text or HTML. It is read as something containing structural signals. The parser identifies these textual markers and organizes the content into question-and-answer pairs.
Instead of simply displaying everything as written, the system interprets what was written. This point is crucial because it changes the nature of the solution. Without a parser, the plugin would just be a visual feature. With a parser, it becomes a system that transforms content into structure.
I started this code in 2020, and the parser didn’t arrive overnight. I went through the “visual-only feature” phase first. Every step I took with this functionality allowed me to see a new way of developing with WordPress, and I learned a lot from every iteration.
What “parsing” means in this context
In the plugin, parsing means traversing the content and finding patterns that have meaning for the application. The parser’s logic follows this idea:
- Everything between `nsk-perg:` and the next `nsk-resp:` is a question.
- Everything between `nsk-resp:` and the next `nsk-perg:` or `nsk-faq-fim:` is an answer.
This decision was vital because it made the system robust. I didn’t want to depend on the `<p>` structure of the content. I wanted to allow multiple paragraphs and freer content with less chance of error based on how the editor organizes the HTML.
Why delimit the start and end of the FAQ
One of the most important decisions was requiring a start and end marker (`nsk-faq-inicio:` and `nsk-faq-fim:`). This makes the structure safer. Without these limits, the system would have to guess where the FAQ begins and ends, which opens room for ambiguity. With the markers, the rule is clear for both the editor and the code.
Everything outside this block is treated as normal content. Everything inside must obey the FAQ rules. This separation avoids misinterpretations, reduces bugs, and improves predictability.
The importance of validation
Validation became a central part of the project. It only became a priority after realizing that sooner or later, the front-end would break without it. When the FAQ is activated, the content is validated before publishing or updating. If there is a structural problem, the post is saved as a draft instead of being published.
This stage prevents errors such as:
- Question without an answer
- Answer before a question
- Loose content within the FAQ block
- Empty blocks, empty questions, or empty answers
- Nested FAQ blocks (inconsistent hierarchy)
- Incorrect number of start/end markers
Generating the accordion isn’t enough. We must ensure the structure is valid before it reaches the front-end.
Why loose content inside the FAQ block is an issue
I decided that loose text cannot exist before the first question inside a FAQ block. Empty paragraphs are accepted, but unmarked text is not. I didn’t want a “mixed” block. If the system allows random content inside the FAQ area, the structure loses clarity and the editorial rule weakens. When the FAQ block starts, it enters a “strict mode.” The first valid marker must be `nsk-perg:`.
Multiple FAQ blocks in the same content
The plugin isn’t limited to a single FAQ per post. If the content has multiple blocks between `nsk-faq-inicio:` and `nsk-faq-fim:`, the system processes all of them. However, blocks cannot be nested—one FAQ cannot exist inside another.
Front-end transformation and Accessibility
After validating, the plugin intercepts `the_content` (the WordPress hook responsible for filtering content before rendering) and replaces each FAQ block with the accordion HTML. In the process, the markers disappear from the front-end. The end-user doesn’t see the tags; they see only the finished interface.
Even in this first version, I wanted to ensure a foundation of accessibility. Questions are rendered as real buttons. Each button uses `aria-expanded` to indicate if the item is open or closed and `aria-controls` to associate the button with the content it manages. The answers use the `hidden` attribute when closed. This improves keyboard navigation and helps assistive technologies understand the relationship between question and answer.
Future Evolution
The first version already solves the core problem well, but there is plenty of room to evolve. We could add visual options like borders, icons, and style variations. We could also include smoother animations, different behavioral modes, and structured data (schema) for SEO. These improvements are product evolutions; the foundation is ready.
Conclusion
Creating this plugin was an interesting exercise in transforming content into structure and structure into an interface. I consider it a turning point in my vision of WordPress. The most important part wasn’t the visual effect of the accordion—it was building a system that allows the editor to write simply, the plugin to validate safely, and the front-end to display everything consistently.
In the end, that’s one of the most interesting things about development: when code stops just showing information and starts interpreting intent.
