Dmytro Shteflyuk

CodeColorer lets you insert syntax-highlighted code snippets into posts, comments, and feeds.
CodeColorer currently bundles GeSHi 1.0.9.0 from the upstream 1.0.x line, with a small set of project-local maintenance patches for current PHP and WordPress compatibility.
Plugin based on GeSHi library, which supports most languages. CodeColorer has various nice features:
<ul>
<li>syntax highlighting in RSS feeds</li>
<li>syntax highlighting of a single line of code (inline)</li>
<li>syntax highlighting of code in comments</li>
<li>line numbers</li>
<li>automatic links to the documentation inserting</li>
<li>code block intelligent scroll detection (short code would have a short block, for a long one the block height would be fixed and a scrollbar would appear)</li>
<li>predefined color themes (Slush & Poppies, Blackboard, Dawn, Mac Classic, Twitlight, Vibrant Ink, Railscasts, Solarized Light, Solarized Dark)</li>
<li>syntax colors customization in CSS file</li>
<li>code protect from mangling by WordPress (for example, quotes, double-dashes, and others would look just right as you entered)</li>
</ul>
<h4>Support</h4>
If you have any suggestions, found a bug, wanted to contribute a translation to your language, or just wanted to say “thank you”, feel free to email me <a href="mailto:kpumuk@kpumuk.info" rel="nofollow ugc">kpumuk@kpumuk.info</a>. I will try my best to answer you.
If you want to contribute your code, see the Development section under the Other Notes tab.
<h3>Supported languages</h3>
Here is the list of languages supported by CodeColorer: 4cs, 6502acme, 6502kickass, 6502tasm, 68000devpac, abap, actionscript, actionscript3, ada, aimms, algol68, apache, applescript, apt_sources, arm, asm, asp, asymptote, autoconf, autohotkey, autoit, avisynth, awk, bascomavr, bash, basic4gl, batch, bf, biblatex, bibtex, blitzbasic, bnf, boo, c, c_loadrunner, c_mac, c_winapi, caddcl, cadlisp, ceylon, cfdg, cfm, chaiscript, chapel, cil, clojure, cmake, cobol, coffeescript, cpp-qt, cpp-winapi, cpp, csharp, css, cuesheet, d, dart, dcl, dcpu16, dcs, delphi, diff, div, dos, dot, e, ecmascript, eiffel, email, epc, erlang, euphoria, ezt, f1, falcon, fo, fortran, freebasic, freeswitch, fsharp, gambas, gdb, genero, genie, gettext, glsl, gml, gnuplot, go, groovy, gwbasic, haskell, haxe, hicest, hq9plus, html4strict, icon, idl, ini, inno, intercal, io, ispfpanel, j, java, java5, javascript, jcl, jquery, julia, kixtart, klonec, klonecpp, kotlin, latex, lb, ldif, lisp, llvm, locobasic, logtalk, lolcode, lotusformulas, lotusscript, lscript, lsl2, lua, m68k, magiksf, make, mapbasic, mathematica, matlab, mercury, metapost, mirc, mk-61, mmix, modula2, modula3, mpasm, mxml, mysql, nagios, netrexx, newlisp, nginx, nimrod, nsis, oberon2, objc, objeck, ocaml-brief, ocaml, octave, oobas, oorexx, oracle11, oracle8, oxygene, oz, parasail, parigp, pascal, pcre, per, perl, perl6, pf, phix, php-brief, php, pic16, pike, pixelbender, pli, plsql, postgresql, postscript, povray, powerbuilder, powershell, proftpd, progress, prolog, properties, providex, purebasic, pycon, pys60, python, q, qbasic, qml, racket, rails, rbs, rebol, reg, rexx, robots, rpmspec, rsplus, ruby, rust, sas, sass, scala, scheme, scilab, scl, sdlbasic, smalltalk, smarty, spark, sparql, sql, standardml, stonescript, swift, systemverilog, tcl, tclegg, teraterm, texgraph, text, thinbasic, tsql, twig, typoscript, unicon, upc, urbi, uscript, vala, vb, vbnet, vbscript, vedit, verilog, vhdl, vim, visualfoxpro, visualprolog, whitespace, whois, winbatch, xbasic, xml, xojo, xorg_conf, xpp, xyscript, yaml, z80, zxbasic.
<h3>Development</h3>
Sources of this plugin are available both in SVN and Git:
<ul>
<li><a href="https://plugins.svn.wordpress.org/codecolorer/" rel="nofollow ugc">WordPress SVN repository</a></li>
<li><a href="https://github.com/kpumuk/codecolorer/" rel="nofollow ugc">GitHub</a></li>
</ul>
The GitHub repository includes local contributor tooling based on <code>mise</code>, Composer, <code>pnpm</code>, and <code>wp-env</code>. A typical setup is:
<ol>
<li><code>mise install</code></li>
<li><code>mise run bootstrap</code></li>
<li><code>mise run test</code></li>
<li><code>mise run wp-start</code></li>
</ol>
Feel free to check them out, make your changes and send me patches or pull requests. Promise, I will apply every patch (of course, if they add a value to the product). Email for patches, suggestions, or bug reports: <a href="mailto:kpumuk@kpumuk.info" rel="nofollow ugc">kpumuk@kpumuk.info</a>.
If you’re interested in translating CodeColorer to your language, please check out the <a href="https://translate.wordpress.org/projects/wp-plugins/codecolorer" rel="nofollow ugc">translation page</a> for the plugin.
<h3>Customization</h3>
Syntax coloring is highly customizable: you could change the color scheme for all languages or a specific language. You could find CodeColorer CSS in wp-content/plugins/codecolorer/codecolorer.css file. To change colors for all languages edit lines below Color scheme section.
There is a simple mapping between TextMate color themes and CodeColorer ones:
<pre><code>/* "Slush & Poppies" color scheme (default) */
.codecolorer-container, .codecolorer { color: #000000; background-color: #F1F1F1; }
/* Comment */
.codecolorer .co0, .codecolorer .co1, .codecolorer .co2, .codecolorer .co3, .codecolorer .co4, .codecolorer .coMULTI { color: #406040; font-style: italic; }
/* Constant */
.codecolorer .nu0, .codecolorer .re3 { color: #0080A0; }
/* String */
.codecolorer .st0, .codecolorer .st_h, .codecolorer .es0, .codecolorer .es1 { color: #C03030; }
/* Entity */
.codecolorer .me1, .codecolorer .me2 { color: #0080FF; }
/* Keyword */
.codecolorer .kw1, .codecolorer .kw2, .codecolorer .sy1 { color: #2060A0; }
/* Storage */
.codecolorer .kw3, .codecolorer .kw4, .codecolorer .kw5, .codecolorer .re2 { color: #008080; }
/* Variable */
.codecolorer .re0, .codecolorer .re1 { color: #A08000; }
/* Global color */
.codecolorer .br0, .codecolorer .sy0 { color: #000000; }
</code></pre>
Check the codecolorer.css file to get more examples.

CodeColorer

Syntax highlighting for code snippets in posts, comments, and RSS, with inline code, themes, and line numbers.

x3ro

This plugin automatically wraps Markdown code blocks (indented by 4 spaces or a tab) 
in CodeColorer tags. You can also specify what language the given snippet uses, by using 
the following syntax:
<pre><code> :ruby:
 class Foo < Bar
 end
</code></pre>
That is, the name of the language, as you’d use it when creating a CodeColorer block, 
enclosed by two colons on the very first line of the code snippet.
The source code repository can be found over at 
<a href="http://github.com/x3ro/wordpress-codecolorer-markdown" rel="nofollow ugc">GitHub</a>.

CodeColorer comaptiblity with “Markdown for WordPress and bbPress”

Enables CodeColorer for any code block created by the markdown-for-wordpress-and-bbpress plugin.

CodeColorer vs CodeColorer comaptiblity with “Markdown for WordPress and bbPress”