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mirror of https://github.com/Jermolene/TiddlyWiki5 synced 2024-12-27 10:30:28 +00:00
TiddlyWiki5/plugins/tiddlywiki/highlight/usage.tid
cdruan 4f42df8bef
Update highlight.js to v11.4.0 (#6427)
* Rename v9 highlight.js plugin to highlight-legacy

* Add ES6 version of highlight.js plugin

* highlightblock.js

	- ensure this ES6 plugin will not cause error on legacy browsers
	- update the code to use new highlight.js APIs
	- change class tagging to match more closely with highlight.js
	- allow users to add language definitions as JS "highlight" modules

* styles.tid

	- update to match v11

* howto.tid

	- add instructions on how to add language definitions as JS modules

* highlight.min.js, default.min.css

	- version 11.4.0 common languages only

* Remove extraneous whitespaces

* Update readme.tid

* Update bundled languages

bundled: common + apache + nginx + latex + dockerfile + fortran

* Update highlight-legacy subtiddlers' titles

* Touch up highlight-legacy docs

* Touch up highlight plugin docs

* Fix pre block styling

- add "hljs" class to <pre> so the element can be styled
2022-02-21 15:35:13 +00:00

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title: $:/plugins/tiddlywiki/highlight/usage
\import $:/plugins/tiddlywiki/highlight/readme
\define jsDelivrLink() https://www.jsdelivr.com/package/gh/highlightjs/cdn-release?path=build%2Flanguages&version=$(highlightVersion)$
\define unpkgLink() https://unpkg.com/browse/@highlightjs/cdn-assets@$(highlightVersion)$/languages/
! Usage
Syntax highlighting is triggered when you add language information to code blocks defined with triple backticks or with the `<$codeblock>` widget. For fenced code blocks, specify the code's language immediately after the first set of backticks:
```
```js
var a = b + c; // Highlighted as JavaScript
```
```
! Adding Themes
You can add themes from highlight.js by copying the CSS to a new tiddler and tagging it with [[$:/tags/Stylesheet]]. The available themes can be found on GitHub:
https://github.com/isagalaev/highlight.js/tree/master/src/styles
! Supporting Additional Languages
The [[highlight.js|https://github.com/highlightjs/highlight.js]] project supports many languages. Only a subset of these languages are supported by the plugin. You can change the language set using either of the following methods:
!! Browser-based Method
You can import language definitions into <$text text="JavaScript"/> tiddlers, with their `module-type` set to "highlight".
First, locate the language file(s) you need. You can fetch the files from the following CDNs:
* <a href=<<jsDelivrLink>>>jsDelivr</a>
* <a href=<<unpkgLink>>>unpkg</a>
Then, click the button below to create a "highlight" module. Copy and paste the content of a language file into the the text area. Give your tiddler a meaningful title so you can keep track of the languages you've installed. You may choose to either create one tiddler per language or lump all language definitions into one tiddler. Save and reload your wiki.
<$button tooltip="add new languages" aria-label="add new languages" >
<$action-createtiddler $basetitle="highlight-language.js" text="" type="application/javascript" module-type="highlight">
<$action-sendmessage $message="tm-edit-tiddler" $param=<<createTiddler-title>>/>
</$action-createtiddler>
Add New Language(s)
</$button>
!!! Keeping Your Language Definitions Up-to-date
Remember to update installed languages whenever this plugin is upgraded:
<ul>
<$list filter="[[highlight]modules[]]" emptyMessage="""<li>(none installed)</li>""">
<li><$link><<currentTiddler>></$link></li>
</$list>
</ul>
!! Via <$text text="TiddlyWiki"/> on Node.js
You can replace the supplied highlight.js library with a custom version:
# Go to the highlight.js project [[download page|https://highlightjs.org/download/]], select the language definitions to include, and press the Download button to download a zip archive containing customised support files for a highlight.js syntax highlighting server.
# Locate the `highlight.min.js` file in the highlight plugin -- on a stock Debian 8 system running Tiddlywiki5 under node-js, it is in `/usr/local/lib/node_modules/tiddlywiki/plugins/tiddlywiki/highlight/files/`.
# Replace the plugin `highlight.min.js` file located in step 2 with the one from the downloaded archive obtained in step 1.
# Restart the ~TiddlyWiki server.