Syntax Highlighting in Blogger using Prettify

Sons-Of-Obsidian Theme PrettifyPrettify is developed by Mike Samuel from Google and is used for displaying code snippets in webpages in a more presentable manner. It is lightweight and gets easily integrated into Blogger. It has four different themes to choose from and also supports C-like and XML-like language's syntax highlighting . In this tutorial we will be seeing how to implement it in your blog and also checking out some of its options. Lets get Started then




Demo

Video Tutorial

Step by Step Guide

1. Go to Blogger Dashboard and then to Template > Edit HTML

template blogger dashboard

2. Now Search (Use CTRL+F) for </body> and add the following JavaScript just before it ( The Code below is very lengthy , copying it manually would be a bit difficult , Use the Copy to Clipboard option)


 

3. Now search for ]]></b:skin> tag and add the following CSS just before it
.kwd{color:#93C763}
.com{color:#66747B}
.typ{color:#678CB1}
.lit{color:#FACD22}
.tag{color:#8AC763}
.atn{color:#E0E2E4}
.dec{color:purple}
pre.prettyprint{border:0 solid #888}
.prettyprint{background:#000}
li.L0,li.L1,li.L2,li.L3,li.L4,li.L5,li.L6,li.L7,li.L8,li.L9{color:#555;list-style-type:decimal}
li.L1,li.L3,li.L5,li.L7,li.L9{background:#111}
.str,.atv{color:#EC7600}
.pun,.pln{color:#F1F2F3}
.prettyprinted{word-wrap:break-word;background:#000;border-radius:10px}
@media print {
.com{color:#600;font-style:italic}
.typ{color:#404;font-weight:700}
.lit{color:#044}
.pun{color:#440}
.pln{color:#000}
.atn{color:#404}
.str,.atv{color:#060}
.kwd,.tag{color:#006;font-weight:700}
}

Note : In case you can't find or its commented out then add the CSS in a style tag just before the </head> tag


4. Save the Template and now you are ready to share Code on your blog in a prettier way !

For adding Code


1. Create a New Post

2. In the HTML section of the Post Editor add your code enclosed in a pre tag like below
 <pre class="prettyprint" >

</pre>

You can also use the code tag instead (Its the HTML5 Convention)

 <code class="prettyprint">
...
</code>

Note: Make sure to Esacpe your Code before pasting it inbetween the pre or code tag . You can Bookmark the Postify Tool for escaping purposes  

Some Options

To display Line Numbers

If you want all the lines of the code to have a line number preceding it , then add linenums class in the pre tag
 <pre class="prettyprint linenums" >

</pre>

Language Support

It supports C and friends, Java, Python, Bash, SQL, HTML, XML, CSS, Javascript, and Makefiles . In case you want to display any other language then extensions are available for the following  LispClojureCSSGoHaskellLuaOCAML, SML, F#NemerleProtocol BuffersScalaSQLTeX, LaTeXVHDLVisual BasicWikiTextXQuery, and YAML . 

After including the Script for the extension you will have to specify a class in the pre tag


 <pre class="prettyprint lang-*">
 The lang-* class specifies the language file extensions.
  File extensions supported by default include
    "bsh", "c", "cc", "cpp", "cs", "csh", "cyc", "cv", "htm", "html",
    "java", "js", "m", "mxml", "perl", "pl", "pm", "py", "rb", "sh",
    "xhtml", "xml", "xsl".
</pre>



In HTML5 , it would be like
 
<pre class="prettyprint"><code class="language-*">...</code></pre>


Adding Comments in Code

Comments can be added in the following manner

int x = foo();  /* This is a comment  This is not code
  Continuation of comment */
int y = bar();

Different Themes

The theme given above is by Alex Ford , There are 3 more themes available . To apply them just replace the CSS in Step 3 Above with any one of these



Sunburst
SunBurst Theme Prettify

pre .kwd,code .kwd{color:#E28964}pre .com,code .com{color:#AEAEAE;font-style:italic}pre .atn,code .atn{color:#bdb76b}pre.prettyprint,code.prettyprint{background-color:#000;-moz-border-radius:8px;-webkit-border-radius:8px;-o-border-radius:8px;-ms-border-radius:8px;-khtml-border-radius:8px;border-radius:8px}pre.prettyprint{width:95%;white-space:pre-wrap;margin:1em auto;padding:1em}ol.linenums{margin-top:0;margin-bottom:0;color:#AEAEAE}li.L0,li.L1,li.L2,li.L3,li.L5,li.L6,li.L7,li.L8{list-style-type:none}pre .str,code .str,pre .atv,code .atv{color:#65B042}pre .typ,code .typ,pre .tag,code .tag{color:#89bdff}pre .lit,code .lit,pre .dec,code .dec{color:#3387CC}pre .pun,code .pun,pre .pln,code .pln{color:#fff}@media print{pre .com,code .com{color:#600;font-style:italic}pre .typ,code .typ{color:#404;font-weight:700}pre .lit,code .lit{color:#044}pre .pun,code .pun{color:#440}pre .pln,code .pln{color:#000}pre .atn,code .atn{color:#404}pre .str,code .str,pre .atv,code .atv{color:#060}pre .kwd,code .kwd,pre .tag,code .tag{color:#006;font-weight:700}}

Default
Default Theme Prettify

.pln{color:#000}
pre.prettyprint{border:1px solid #888;padding:2px}
ol.linenums{margin-top:0;margin-bottom:0}
li.L0,li.L1,li.L2,li.L3,li.L5,li.L6,li.L7,li.L8{list-style-type:none}
li.L1,li.L3,li.L5,li.L7,li.L9{background:#eee}
@media screen {
.com{color:#800}
.lit{color:#066}
.pun,.opn,.clo{color:#660}
.fun{color:red}
.str,.atv{color:#080}
.kwd,.tag{color:#008}
.typ,.atn,.dec,.var{color:#606}
}
@media print,projection {
.com{color:#600;font-style:italic}
.typ{color:#404;font-weight:700}
.lit{color:#044}
.pun,.opn,.clo{color:#440}
.atn{color:#404}
.str,.atv{color:#060}
.kwd,.tag{color:#006;font-weight:700}
}

Desert
Desert Theme Prettify

pre.prettify{display:block;background-color:#333}pre .nocode{background-color:none;color:#000}pre .com{color:#87ceeb}pre .lit{color:#cd5c5c}pre .atn{color:#bdb76b;font-weight:700}ol.linenums{margin-top:0;margin-bottom:0;color:#AEAEAE}li.L0,li.L1,li.L2,li.L3,li.L5,li.L6,li.L7,li.L8{list-style-type:none}pre .str,pre .atv{color:#ffa0a0}pre .kwd,pre .tag{color:#f0e68c;font-weight:700}pre .typ,pre .dec{color:#98fb98}pre .pun,pre .pln{color:#fff}@media print{pre.prettify{background-color:none}pre .com,code .com{color:#600;font-style:italic}pre .typ,code .typ{color:#404;font-weight:700}pre .lit,code .lit{color:#044}pre .pun,code .pun{color:#440}pre .pln,code .pln{color:#000}pre .atn,code .atn{color:#404}pre .str,code .str,pre .atv,code .atv{color:#060}pre .kwd,code .kwd,pre .tag,code .tag{color:#006;font-weight:700}}


Moving from Syntax Highlighter

In case you have been using Syntax Highlighter for a long time and want to shift to Prettify , It would be impractical to change all the class names of each code block till now from brush: something to prettyprint. To overcome this problem I have a small trick. In the JavaScript file above search for /\bprettyprint\b/ and /\blinenums\b and replace them with /\bbrush:\b/ and /\bxml\b ( Here I am assuming you used the xml brush in all the codes ) . This will apply Prettify to all the Code Blocks and also add the Line Number as they were shown in Syntax Highlighter.

Hope the tutorial made it easy for you to embed code snippets in your blog. Don't hesitate to ask if you face any problems while implementing or using it

Related Articles

Written by Prayag Verma

A self proclaimed Blogger Evangelist. He has been blogging for the past 3 years and likes to help people having problems with Blogger . Get more from Prayag on and Twitter

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Post a Comment

Bharat said...

Prettify is really cool and thanks for writing this article. Its clear and perfect. Even noobs can easily implement this.

Thanks for the valuable information.

gamep01nt said...

thank you! keep on posting quality posts~

sibin xavier said...

Thanks! Nice article

Thank you so much for this awesome tutorial!!

Danialde4 said...

Hi Prayang I want ask you which is better, Google Prettify or Syntax Highlither. I hope you can tell me which is better :)

Prayag Verma said...

Hi Danial

Both these comes with their own benefits and shortcomings

Syntax Highlighter has options like Copy to Clipboard , View Source but requires a separate JS and CSS file to be included for each language separately for it to apply Syntax Highlighting

Whereas Prettify is a more lighter of the two and supports more languages straight out of the box but lacks Copy to Clipboard and Collapse code feature .

In the end its a matter of your choice . To sum it up in a few words

Syntax Highlighter - For easy Copying
Prettify - For faster load times

Prayag Verma said...

Thanks for the compliment Bharat , you do a even better job at WPSquare

I try to create tutorials that can be easily understood by anybody even non-coders

Prayag Verma said...

I am glad Andreas that you liked it , Feel free to ask if you face any problem while implementing it or using it

Prayag Verma said...

Thanks Sibin for your comment

Hope this makes code sharing easier for you

Prayag Verma said...

Thanks @HeyAzwan for the comment

I will try to keep the quality and usefulness highest for each post I Release

Prayag Verma said...

Thanks for the comment Trever

Danialde4 said...

Owh.. that is the different. I more like Syntax Highlighting because easy Copy to Clipboard, just like you say but I am like Prettify because light(fast loading).

Now I am thinking which one is better SH or Prettify and the result is I rather pick Syntax Highlighting because thier have Collapse code feature just like you use it on this post.. Thanks a lot Prayang may good bless you :D

Rahul Roy said...

Thanks for awesome Tutorial Prayag..

Prayag Verma said...

Thanks for the comment and compliment Rahul , You have done a awesome job with your blog , it has such useful information related to Social Media. Keep up the effort

Avi Nash said...

Having a problem with it.Hope you will help.When I am using this if I want to display a html script inside a syntax-highlighting box, the script whixh I wanna display does not appear but the codes of the script makes an automatic widget or anything ,means if I want to write the process of making something it makes the thing .Please help thanks.

Prayag Verma said...

Hi Avinash

I suppose you are missing the step of Escaping the code . Use Postify to escape code and then paste this Escaped code into the Syntax Highlighting box

John Xc said...

Cool! thanks. Added to my blog.

Naor Ami said...

Hi, I'm having a problem with code coloring, code blocks have a black background but nothing else happens.
HTML code appears in gray.
I Used syntax highlighter but I already removed all the script tags (I don't have many posts in my blog), what could be the problem?
thanks!

adi said...

owesome post yar

Chi Cuong Le said...

It doesn't work for me too. I have same problem as Naor Ami (background is dark, no highlight). I have a dynamic view in my blog.

TechnoZodiac said...

cool dude...
help for a blog beginners..

Rakesh Latha said...

superb !! Extremely Good...

Very nicely written, thank you. Which do you prefer, Prettify or SyntaxHighlighter? This blog uses SyntaxHighlighter, so I was wondering if one has advantages over the other. Although I have a bit of a soft spot for Prettify.

Hey i am facing the problem. It doesnt works the same in my case, On applying the "pre" tag to the java code. The css gets applied but the no of linings doesnt gets showed up nor does the code gets showed only the black background gets showed. Please help???

Also i go the error in firebug "ReferenceError: prettyPrint is not defined".

hi prayag , i am trying to apply prettify , but it is not showing in a separate frame just like yours , also i want to know about how to change css and styling of my blogs , just like yours , it's awesome

Hello, I wanted to prettify some linux console examples and it would be good if no highlighted is set, maintaining the beatiful box (my theme is Sunburst I guess)

lhend said...

Hi,
i am try use prettify on blogger, but it seems that it has problem when posting C language, especially with the "less than" and "bigger than" signs. Does anybody have similar experience?

sahil said...

I did implement this on my blog
I am really happy to use it, I would like to share this on my site, plz let me know how can i share this and keep it for future reference

Mehedi Hasan said...

I really liked your comment box. How are you able to tell it. my e-mail: robiwebbusiness@gmail.com

Hi all, I have another choice for hightlight the source code. If you don't want your blog run a little slowly, you can generate the source code online, then copy it to your blog. More easier and faster, right?
This is my online tool.
http://www.phamngoctan.com/2013/11/format-source-code-for-blogger.html
Currently, I have 6 theme for you to choose which kind of color you want to show in your website. I will develope more. Hope this online tool will be useful for all of blogger.

ved prakash said...

Thanks for this post. It's working and easy to apply no bullshit of brush system :)
Take a look
http://codinggiri.blogspot.in
Once again thanks for this post

Joseph V M said...

Nice post Prayag. I'd implemented this on my blog (http://www.josephstutorialshop.blogspot.com).

But I'm facing a problem that some lines of code are exceeding the border..! How can I fix that?

Thankyou it works and cool looking

pathros said...

Hey, nice tut!
How do i add the SQL extension??? Where exactly????

Joseph V M said...

Hi Prayag,
Thanks for this post. Is it possible to use two different themes on a site?

Hey,
Good stuff thanks a lot for this post

Mulham EB said...

thank you too much or the post
but i want to know how to add 'copy to clip board' button

Jasper Lai said...

Thanks for your helpful information.
I have a problem is how to make the 'linenums' is not just 5, 10, 15 ... but also 1, 2, 3, 4, 5, 6 ...
How can I solve it?

Rajib Aditya said...

This was really helpful. I did add a bit to ensure wrapping in Firefox, because it wasn't happening. But thanks- this started me off.