In daily website operations, especially for sites that publish technical tutorials, code examples, or detailed configuration documents, we often need to display various code blocks in the articles.However, when these code lines are too long, they often bring considerable challenges to the page layout and the user's reading experience.Imagine that when the user is browsing your technical articles on their phone, they suddenly encounter a very long line of code, causing the page to have a horizontal scrollbar. This not only ruins the aesthetics of the page but also makes reading extremely cumbersome.

In a system like AnQiCMS, which is committed to providing efficient and easy-to-use content management solutions, solving such problems is naturally a focus of both developers and operators. Fortunately, AnQiCMS' built-in template engine provides many practical filters, wherewordwrapThe filter is the secret weapon that helps us elegantly handle the display issues of long code blocks.

Display issues caused by long code blocks

The characteristics of code determine that it usually contains continuous character sequences, such as function names, variable names, file paths, or URLs, which may not contain spaces themselves.When these long sequences are displayed on a single line, they will exceed the width of the parent container, causing content overflow.This overflow varies in different devices: on the desktop, it may cause annoying horizontal scrollbars that affect the overall aesthetics; while on mobile devices, users have to frequently zoom in or scroll horizontally to view the full content, greatly reducing reading efficiency and user satisfaction.

wordwrapFilter: A practical assistant for text formatting

wordwrapThe filter plays a simple but very important role in the AnQiCMS template system: it can intelligently break long texts into lines according to the length we set. Its basic usage is intuitive and clear, for example:

{{ 你的长文本变量 | wordwrap:指定长度 }}

Here is the “specified length”, which is the maximum number of characters you want to display per line.When the filter finds a "word

wordwrapHow to help optimize the display of code blocks

  1. Improve code readability：This is the most direct benefit. BywordwrapEven unformatted code can be visually broken down into shorter lines for easier reading.The user does not need to manually scroll to see most of the code content, thus understanding its logic and structure more quickly.

  2. keeping the page layout tidy：Long code lines are no longer the 'destroyer' of page layout.wordwrapEnsure that the content of the code block is always displayed within the preset container width, avoiding misalignment of page elements, making your website look professional and beautiful on any device.For AnQiCMS emphasizing SEO-friendly and user experience, this is crucial.

  3. Improve mobile user experienceWith mobile devices becoming the primary source of traffic, optimizing the mobile experience has become more important than ever.wordwrapThe filter allows the code block to adapt to display on small screens automatically, eliminating the need for horizontal scrolling by the user, making the learning and consultation of technical content smoother and more pleasant.

  4. Applicable to a variety of technical content：Whether it is a code snippet of a programming language, a server configuration file (such as Apache or Nginx configuration), a complex SQL query, or the log output of program execution, as long as the content may have long lines,wordwrapCan be used in various ways, helping you better display this technical information.

Application and Precautions in Practice

In order towordwrapThe filter takes effect, usually we will combine it with HTML's<pre>Tags are used together.<pre>Tags can preserve the preformatted text (including spaces and newline characters), which is very suitable for displaying code. For example:

<pre><code>{{ 你的代码变量 | wordwrap:80 | linebreaksbr | safe }}</code></pre>

Here,wordwrap:80It will try to break the code into lines every 80 characters.linebreaksbrFilter will then convertwordwrapThe generated logic line breaks to actual HTML<br>Tags to ensure the browser can correctly render line breaks. The finalsafeThe filter informs AnQiCMS's template engine that this output content is safe and does not require HTML entity encoding, so that the code in</>Characters such as these must be displayed correctly rather than converted.&lt;/&gt;.

An important note is: wordwrapThe filter primarily relies on spaces to identify and perform line breaks. This means that if a very long string (such as a very long variable name, a complete URL without slashes, or a continuous identifier without any spaces) does not contain any spaces in the middle,wordwrapWill not be able to disconnect within it. In this case, the long string may still overflow. For pure Chinese continuous characters,wordwrapAlso, line breaks will not be performed. Therefore, when editing technical content, it is appropriate to add spaces in long code lines (such as at key positions in chained calls or long URLs), which can helpwordwrapWork better.

Summary

In short, in AnQiCMS,wordwrapThe filter, although it looks like a small feature, plays an indispensable role in enhancing the reading experience of technical content and maintaining the professionalism of the website. By making reasonable use ofwordwrapwith<pre>Tags andlinebreaksbr/safeFilter, you can easily make long code blocks on websites more readable and beautiful, thus providing users with a better content consumption experience.

Common Questions (FAQ)

  1. wordwrapCan the filter handle all types of long text? wordwrapThe filter behaves** when processing long texts containing spaces, it tries to wrap at the spaces. However, for very long strings without spaces (such as very long English words, consecutive variable names, or URLs without delimiters),wordwrapIt may not be possible to disconnect within it, and this part of the content may still cause overflow.

  2. wordwrapFilterer with HTML's<pre>What is the difference between tags, and why are they used simultaneously? <pre>The primary function of the label is to preserve the preformatted text, including all spaces and newline characters, and is usually displayed in a monospaced font. AndwordwrapThe filter is a logical line break processing of the text content itself. Used alone<pre>Ensure that the line breaks you enter are valid, but it will not automatically handle line breaks for overly long lines. Use in combination with,wordwrapfirst break overly long lines into multiple lines, then<pre>The label ensures that the content after this line break is displayed accurately on the page as you see it (including spaces).

  3. Do I need to use this in all code blocks?wordwrapFilter?It depends on the expected length of the code block and display requirements.If the code block content is usually short, or you want them to be displayed strictly in the original format (even with horizontal scrolling), it is not necessary.wordwrapCan significantly improve user experience, especially in terms of multi-device compatibility. It is recommended to preview the effect before content publication and decide whether to apply it according to the actual situation.