Elegant Syntax Highlighter In JavaScript – EnlighterJS

Category: Javascript , Recommended , Text | January 16, 2023
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Last Update:January 16, 2023


Elegant Syntax Highlighter In JavaScript – EnlighterJS


EnlighterJS is a powerful Syntax Highlighter that supports more than 40 languages and comes with 12 elegant themes.

Also provides plugins for TinyMCE and WordPress.

Supported languages:

  • Assembly (assembly, asm)
  • AVR Assembly (avrassembly, avrasm)
  • C/C++ (c,cpp, c++)
  • C# (csharp)
  • CSS (css)
  • Cython (cython)
  • CordPro (cordpro)
  • diff (diff)
  • Dockerfile (docker, dockerfile)
  • Generic (generic, standard) – default highlighting scheme
  • Groovy (groovy)
  • Go (go, golang)
  • HTML (html)
  • Ini (ini, conf)
  • Java (java)
  • Javascript (js, javascript, jquery, mootools, ext.js)
  • JSON (json)
  • Kotlin (kotlin)
  • LESS (less)
  • LUA (lua)
  • Markdown (gfm, md, markdown)
  • Matlab/Octave (octave, matlab)
  • NSIS (nsis)
  • PHP (php)
  • Powerhsell (powershell)
  • Prolog (prolog)
  • Python (py, python)
  • RAW (raw) – raw code without highlighting with EnlighterJS container styles!
  • Ruby (ruby)
  • Rust (rust)
  • SCSS (scss, sass)
  • Shellscript (shell, bash)
  • SQL (sql)
  • Squirrel (squirrel)
  • Swift (swift)
  • Typescript (typescript)
  • VHDL (vhdl)
  • VisualBasic (visualbasic, vb)
  • XML (xml)
  • YAML (yaml)
  • Verilog

More features:

  • Copy to clipborad.
  • RAW mode.
  • Line numbers.
  • Highlight current line on hover.
  • Display code snippets in new window

Basic usage:

Load the EnlighterJS’ JavaScript and Stylesheet in the document.

<link rel="stylesheet" href="enlighterjs.min.css">
<script src="enlighterjs.min.js"></script>

Insert your code snippets into pre or code tag and specify the language using the data-enlighter-language attribute:

<pre data-enlighter-language="javascript">
  Code Snippets Here
<code data-enlighter-language="less">
  Code Snippets Here

Initialize the Syntax Highlighter with default settings.

EnlighterJS.init('pre', 'code');

Available options to customize the Syntax Highlighter.

EnlighterJS.init('pre', 'code',{
  // default code indentation
  indent: 4,
  // &amp; to &
  ampersandCleanup: true,
  // enable line hover highlighting
  linehover: true,
  // show linenumbers
  linenumbers: true,
  // copy css classes from origin element to outer wrapper
  retainCssClasses: false,
  // additional css classes added to outer wrapper
  cssClasses: '',
  // top outer toolbar
  toolbarOuter: '{BTN_TABS}',
  // header toolbar
  // footer toolbar
  toolbarBottom: '{BTN_COLLAPSE}',
  // no line offset
  lineoffset: 0,
  // no special line highlighting
  highlight: '',
  // default layout
  layout: 'standard',
  // or 'scroll
  textOverflow: 'break',
  // enable collapse / vertical scroll
  collapse: false,
  // default language
  language: 'generic',
  // default title
  title: ''
    Enlighter (enlighter, standard) - Enlighter`s default Theme
    Classic (classic) - SyntaxHighlighter inspired
    Bootstrap (bootstrap4) - Bootstrap 4 inpired themes, high contrast
    Beyond (beyond) - BeyondTechnology Theme
    Godzilla (godzilla) - A MDN inspired Theme
    Eclipse (eclipse) - Eclipse inspired
    MooTwo (mootwo) - Inspired by the MooTools Website
    Droide (droide) - Modern, minimalistic
    Minimal (minimal) - Bright, High contrast
    Atomic (atomic) - Dark, Colorful
    Dracula (dracula) - Dark, using official draculatheme colorscheme
    Rowhammer (rowhammer) - Light, Transparent, divided rows
  theme: 'enlighter',
  // show raw code on double click
  rawcodeDbclick: false

You can also pass the options via data-OPTION attributes as follows:

<pre data-enlighter-language="javascript"
     Code Snippets Here


v3.6.0 (01/16/2023)

  • Added: css tooltips to the toolbar
  • Added: copy-to-clipboard success/error message via tooltip
  • Added: language identifier as css class to the outer wrapper enlighter-l-<resolvedLanguage>
  • Added: htaccess language alias to “Apache httpd”
  • Changed: DOM structure has changed: each raw+highlighted code elements are wrapper into enlighter-code container
  • Changed: DOM structure has changed: removed enlighter-codegroup-wrapper
  • Changed: toolbar position is now persistent and not affected by horizontal/vertical scrolling
  • Bugfix: bash pound style comment regex also matched variable substituions and special cases
  • Bugfix: bash single quoted strings not highlighted
  • Bugfix: language alias js was processed as typescript due to inheritance issue (missing override)

v3.5.1 (10/18/2022)

  • added css tooltips + copy message; DOM structure changes

v3.5.0 (05/07/2022)

  • Added: basic support for windows batch / bat file syntax
  • Added: dart language support
  • Added: dedicated MariaDB/MySQL language support mariadb
  • Added: dedicated Oracle Database language support oracledb (no special rules yet)
  • Added: dedicated MSSQL language support mssql (no special rules yet)
  • Added: constraints to sql
  • Changed: splitted sql language into several types/dialects for further extension
  • Changed: removed pound style comments from generic sql support
  • Changed: removed keywords bigint and unsigned from generic sql support
  • Changed: droide theme color #009999 to #007f7f for higher contrast (WCAG)
  • Changed: in case of a tokenizer error, the tokenizer will silently fail (output to console) instead of throwing an error – code will still be displayed but related tokens are missing
  • Bugfix: yaml integer numbers not highlighted
  • Bugfix: php variable and function names followed by single/double quotes were interpreted as name
  • Bugfix: php method names which equals a keyword were highlighted as keyword
  • Bugfix: php method calls on variables were interpreted as variable name
  • Bugfix: latex command on first line not recognized
  • Bugfix: javascript regular expressions are match over multiple lines
  • Bugfix: tokenizer loop limit was calculated in total instead of per-rule
  • Bugfix: keywords of generic language requires a word-boundary before+after instead of a non word character
  • Bugfix: allow any non-whitespace chars in sql column name literals
  • Bugfix: added missing string keyword to c# type list
  • Bugfix: pound and double-slash style comments also matched the last character before the comment

v3.4.0 (05/11/2020)

  • Added: keyword k11 for annotations
  • Added: keyword x16 for css element selectors
  • Added: contextual keywords to csharp
  • Added: kotlin string template support
  • Added: r language support (covered by generic ruleset)
  • Added: MikroTik RouterOS language support (ros/mikrotik/switchos/routeros/mt)
  • Added: pound style comment support to php
  • Changed: css selector fragment highlighting is limited to the selector itself
  • Changed: enhanced css unit parsing
  • Changed: java, scala, cpp annotation token changed to k11
  • Changed: added token k11 to themes
  • Changed: moved generic highlighting rules to lang/rulesets/generic
  • Changed: ampersandCleanup is performed after html escape sequences to eliminate issues related to double unquoting
  • Changed: toggle raw code label to “Plain text”
  • Changed: allowed utf8 characters in php variable and function names (side effect of the php parser)
  • Bugfix: vhdl single bit highlighting collided with attribute syntax
  • Bugfix: css classnames/ids with hyphens were not recognized
  • Bugfix: XML mixins of single/double quotes in attributes failed
  • Bugfix: dot char within XML attribute names not recognized
  • Bugfix: kotlin raw string where not correctly parsed (wrong rule priority)
  • Bugfix: highlighting color of classic theme not applied due to invalid selectors

v3.3.0 (04/22/2020)

  • Added: apachehttpd/htaccess support
  • Added: lighttpd support
  • Added: nginx support
  • Added: purebasic support
  • Added: latex/tex support
  • Changed: theme font sizes + line-height are based on relative em values – only the font size of the outer wrapper is set explicitly
  • Changed: removed “function” highlighting regex from sql
  • Bugfix: [engine] possible overlapping matches of multitype tokens in case submatches are equal

v3.2.0 (04/17/2020)

  • Added: verilog support
  • Added: collapse option to limit the maximal height
  • Added: integer highlighting for sql
  • Added: modular configurable toolbar system using placeholders
  • Added: collapse mode
  • Added: browser based tooltips to the buttons (title attribute)
  • Bugfix: powershell commands can also expressed lowercase (camel-case not required)
  • Bugfix: sql — styles comments ignored due to invalid regex

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