Adding Syntax Highlighting to Code Snippets in a Blog or Website

I’ve received a few requests on how to highlight the syntax of snippets of in a blog like I have. Here is an example snippet of SCSS code, so you can see exactly what I’m referring to.
Many people initially think you have to manually color the elements, or manually escape the characters, but it’s much more simple than that, so I’ll cover everything necessary to embed snippets in your own blog or website in this article.

#snippet

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Adding Syntax Highlighting to Code Snippets in a Blog or Website
Brain  Crist

Brain Crist

1598817600

Adding Syntax Highlighting to Code Snippets in a Blog or Website

I’ve received a few requests on how to highlight the syntax of snippets of in a blog like I have. Here is an example snippet of SCSS code, so you can see exactly what I’m referring to.

// Variables
$font-stack: Helvetica, sans-serif;
$primary-color: #333;

@mixin border-radius($radius) {
  -webkit-border-radius: $radius;
  -moz-border-radius: $radius;
  -ms-border-radius: $radius;
  border-radius: $radius;
}

body {
  font: 100% $font-stack;
  color: $primary-color;
}

.box {
  @include border-radius(10px);
}

Many people initially think you have to manually color the elements, or manually escape the characters, but it’s much more simple than that, so I’ll cover everything necessary to embed snippets in your own blog or website in this article.

Prerequisites
  • Basic knowledge of HTML and CSS.
Goals
  • Highlight code syntax in a website or blog.
  • Automatically escape HTML and PHP code in WordPress.

There are two main options to displaying code on your site - embedding the code or using JavaScript to highlight the syntax of pre and code tags.

Embedding

The faster, easier option for syntax highlighting is embedding the code in the form of a GitHub gist or Codepen pen. Both of these can be done with an account or anonymously.

Gist

Here is an example of the above code embedded as a GitHub gist:

Pen

And here is the above code embedded as a CodePen pen.

See the Pen mEerjX

The advantage to embedding is that it’s quick and easy. CodePen in specific is excellent for demos because you can show the code and the result.

However, loading multiple embed scrips throughout your blog can slow it down significantly, and additionally you don’t have much control as to how the code snippet looks and what colors it uses. CodePen is only for front end web development, and you wouldn’t be able to embed code in PHP, Ruby, Python, and so on. For many, that might not matter, and for others it does. For both of these options, all you do is paste your code and find the “embed” button.

#snippets #tutorial #code #visual studio code

How to Create Pure CSS Tabs with Indicator using only HTML & CSS

In this blog you’ll learn how to create Pure CSS Tabs with Indicator using only HTML & CSS.

To create pure CSS tabs with Indicator using only HTML & CSS. First, you need to create two Files one HTML File and another one is CSS File.

1: First, create an HTML file with the name of index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Pure CSS Tabs Design | Codequs</title>
    <link rel="stylesheet" href="style.css">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css"/>
</head>
<body>
  <div class="wrapper">
    <header>Pure CSS Tabs</header>
    <input type="radio" name="slider" checked id="home">
    <input type="radio" name="slider" id="blog">
    <input type="radio" name="slider" id="code">
    <input type="radio" name="slider" id="help">
    <input type="radio" name="slider" id="about">
    <nav>
      <label for="home" class="home"><i class="fas fa-home"></i>Home</label>
      <label for="blog" class="blog"><i class="fas fa-blog"></i>Blog</label>
      <label for="code" class="code"><i class="fas fa-code"></i>Code</label>
      <label for="help" class="help"><i class="far fa-envelope"></i>Help</label>
      <label for="about" class="about"><i class="far fa-user"></i>About</label>
      <div class="slider"></div>
    </nav>
    <section>
      <div class="content content-1">
        <div class="title">This is a Home content</div>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Vero aspernatur nobis provident dolores molestias quia quisquam laborum, inventore quis, distinctioa, fugit repudiandae delectus sunt ipsam! Odio illo at quia doloremque fugit iops, asperiores? Consectetur esse officia labore voluptatum blanditiis molestias dic voluptas est, minima unde sequi, praesentium dicta suscipit quisquam iure sed, nemo.</p>
      </div>
      <div class="content content-2">
        <div class="title">This is a Blog content</div>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit amet. Possimus doloris nesciunt mollitia culpa sint itaque, vitae praesentium assumenda suscipit fugit doloremque adipisci doloribus, sequi facere itaque cumque accusamus, quam molestias sed provident quibusdam nam deleniti. Autem eaque aut impedit eo nobis quia, eos sequi tempore! Facere ex repellendus, laboriosam perferendise. Enim quis illo harum, exercitationem nam totam fugit omnis natus quam totam, repudiandae dolor laborum! Commodi?</p>
      </div>
      <div class="content content-3">
        <div class="title">This is a Code content</div>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Iure, debitis nesciunt! Consectetur officiis, libero nobis dolorem pariatur quisquam temporibus. Labore quaerat neque facere itaque laudantium odit veniam consectetur numquam delectus aspernatur, perferendis repellat illo sequi excepturi quos ipsam aliquid est consequuntur.</p>
      </div>
      <div class="content content-4">
        <div class="title">This is a Help content</div>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Enim reprehenderit null itaq, odio repellat asperiores vel voluptatem magnam praesentium, eveniet iure ab facere officiis. Quod sequi vel, rem quam provident soluta nihil, eos. Illo oditu omnis cumque praesentium voluptate maxime voluptatibus facilis nulla ipsam quidem mollitia! Veniam, fuga, possimus. Commodi, fugiat aut ut quorioms stu necessitatibus, cumque laborum rem provident tenetur.</p>
      </div>
      <div class="content content-5">
        <div class="title">This is a About content</div>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequatur officia sequi aliquam. Voluptatem distinctio nemo culpa veritatis nostrum fugit rem adipisci ea ipsam, non veniam ut aspernatur aperiam assumenda quis esse soluta vitae, placeat quasi. Iste dolorum asperiores hic impedit nesciunt atqu, officia magnam commodi iusto aliquid eaque, libero.</p>
      </div>
    </section>
  </div>
</body>
</html>

2: Second, create a CSS file with the name of style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap');
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}
body{
  overflow: hidden;
  padding: 0 20px;
  background: #17a2b8;
}
::selection{
  background: rgba(23,162,184,0.3);
}
.wrapper{
  max-width: 700px;
  width: 100%;
  margin: 200px auto;
  padding: 25px 30px 30px 30px;
  border-radius: 5px;
  background: #fff;
  box-shadow: 0px 10px 15px rgba(0,0,0,0.1);
}
.wrapper header{
  font-size: 30px;
  font-weight: 600;
  padding-bottom: 20px;
}
.wrapper nav{
  position: relative;
  width: 80%;
  height: 50px;
  display: flex;
  align-items: center;
}
.wrapper nav label{
  display: block;
  height: 100%;
  width: 100%;
  text-align: center;
  line-height: 50px;
  cursor: pointer;
  position: relative;
  z-index: 1;
  color: #17a2b8;
  font-size: 17px;
  border-radius: 5px;
  margin: 0 5px;
  transition: all 0.3s ease;
}
.wrapper nav label:hover{
  background: rgba(23,162,184,0.3);
}
#home:checked ~ nav label.home,
#blog:checked ~ nav label.blog,
#code:checked ~ nav label.code,
#help:checked ~ nav label.help,
  #about:checked ~ nav label.about{
  color: #fff;
}
nav label i{
  padding-right: 7px;
}
nav .slider{
  position: absolute;
  height: 100%;
  width: 20%;
  left: 0;
  bottom: 0;
  z-index: 0;
  border-radius: 5px;
  background: #17a2b8;
  transition: all 0.3s ease;
}
input[type="radio"]{
  display: none;
}
#blog:checked ~ nav .slider{
  left: 20%;
}
#code:checked ~ nav .slider{
  left: 40%;
}
#help:checked ~ nav .slider{
  left: 60%;
}
#about:checked ~ nav .slider{
  left: 80%;
}
section .content{
  display: none;
  background: #fff;
}
#home:checked ~ section .content-1,
#blog:checked ~ section .content-2,
#code:checked ~ section .content-3,
#help:checked ~ section .content-4,
#about:checked ~ section .content-5{
  display: block;
}
section .content .title{
  font-size: 21px;
  font-weight: 500;
  margin: 30px 0 10px 0;
}
section .content p{
text-align: justify;
}

Now you’ve successfully created Pure CSS Tabs with Slide Indicator.

Tyrique  Littel

Tyrique Littel

1604008800

Static Code Analysis: What It Is? How to Use It?

Static code analysis refers to the technique of approximating the runtime behavior of a program. In other words, it is the process of predicting the output of a program without actually executing it.

Lately, however, the term “Static Code Analysis” is more commonly used to refer to one of the applications of this technique rather than the technique itself — program comprehension — understanding the program and detecting issues in it (anything from syntax errors to type mismatches, performance hogs likely bugs, security loopholes, etc.). This is the usage we’d be referring to throughout this post.

“The refinement of techniques for the prompt discovery of error serves as well as any other as a hallmark of what we mean by science.”

  • J. Robert Oppenheimer

Outline

We cover a lot of ground in this post. The aim is to build an understanding of static code analysis and to equip you with the basic theory, and the right tools so that you can write analyzers on your own.

We start our journey with laying down the essential parts of the pipeline which a compiler follows to understand what a piece of code does. We learn where to tap points in this pipeline to plug in our analyzers and extract meaningful information. In the latter half, we get our feet wet, and write four such static analyzers, completely from scratch, in Python.

Note that although the ideas here are discussed in light of Python, static code analyzers across all programming languages are carved out along similar lines. We chose Python because of the availability of an easy to use ast module, and wide adoption of the language itself.

How does it all work?

Before a computer can finally “understand” and execute a piece of code, it goes through a series of complicated transformations:

static analysis workflow

As you can see in the diagram (go ahead, zoom it!), the static analyzers feed on the output of these stages. To be able to better understand the static analysis techniques, let’s look at each of these steps in some more detail:

Scanning

The first thing that a compiler does when trying to understand a piece of code is to break it down into smaller chunks, also known as tokens. Tokens are akin to what words are in a language.

A token might consist of either a single character, like (, or literals (like integers, strings, e.g., 7Bob, etc.), or reserved keywords of that language (e.g, def in Python). Characters which do not contribute towards the semantics of a program, like trailing whitespace, comments, etc. are often discarded by the scanner.

Python provides the tokenize module in its standard library to let you play around with tokens:

Python

1

import io

2

import tokenize

3

4

code = b"color = input('Enter your favourite color: ')"

5

6

for token in tokenize.tokenize(io.BytesIO(code).readline):

7

    print(token)

Python

1

TokenInfo(type=62 (ENCODING),  string='utf-8')

2

TokenInfo(type=1  (NAME),      string='color')

3

TokenInfo(type=54 (OP),        string='=')

4

TokenInfo(type=1  (NAME),      string='input')

5

TokenInfo(type=54 (OP),        string='(')

6

TokenInfo(type=3  (STRING),    string="'Enter your favourite color: '")

7

TokenInfo(type=54 (OP),        string=')')

8

TokenInfo(type=4  (NEWLINE),   string='')

9

TokenInfo(type=0  (ENDMARKER), string='')

(Note that for the sake of readability, I’ve omitted a few columns from the result above — metadata like starting index, ending index, a copy of the line on which a token occurs, etc.)

#code quality #code review #static analysis #static code analysis #code analysis #static analysis tools #code review tips #static code analyzer #static code analysis tool #static analyzer

Adding Syntax Highlighting to Code Snippets in a Blog or Website

I’ve received a few requests on how to highlight the syntax of snippets of in a blog like I have. Here is an example snippet of SCSS code, so you can see exactly what I’m referring to.
Many people initially think you have to manually color the elements, or manually escape the characters, but it’s much more simple than that, so I’ll cover everything necessary to embed snippets in your own blog or website in this article.

#snippet

Rahim Makhani

Rahim Makhani

1620968589

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Your website should be bug free because if there is any bug in your website it will slow down the performance of it and will not even work properly if this happens then there are chances that you may lose your customers.

Are you searching for a company that can provide you with website support and maintenance? Nevina Infotech is the best company that can help you with the maintenance and support, as we have enthusiastic web app developers who can help you to maintain your website.

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