hugo/docs/content/en/getting-started/configuration-markup.md
2023-09-24 11:54:45 +02:00

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Configure markup Configure rendering of markup to HTML.
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Default configuration

See Goldmark for settings related to the default markdown handler in Hugo.

Below are all markup related configuration in Hugo with their default settings:

{{< code-toggle config="markup" />}}

See each section below for details.

Goldmark

Goldmark is from Hugo 0.60 the default library used for Markdown. It's fast, it's CommonMark compliant and it's very flexible.

This is the default configuration:

{{< code-toggle config="markup.goldmark" />}}

For details on the extensions, refer to this section of the Goldmark documentation

Some settings explained:

hardWraps
By default, Goldmark ignores newlines within a paragraph. Set to true to render newlines as <br> elements.
unsafe
By default, Goldmark does not render raw HTML and potentially dangerous links. If you have lots of inline HTML and/or JavaScript, you may need to turn this on.
typographer
This extension substitutes punctuations with typographic entities like smartypants.
attribute
Enable custom attribute support for titles and blocks by adding attribute lists inside single curly brackets ({.myclass class="class1 class2" }) and placing it after the Markdown element it decorates, on the same line for titles and on a new line directly below for blocks.

Hugo supports adding attributes (e.g. CSS classes) to Markdown blocks, e.g. tables, lists, paragraphs etc.

A blockquote with a CSS class:

> foo
> bar
{.myclass}

There are some current limitations: For tables you can currently only apply it to the full table, and for lists the ul/ol-nodes only, e.g.:

* Fruit
  * Apple
  * Orange
  * Banana
  {.fruits}
* Dairy
  * Milk
  * Cheese
  {.dairies}
{.list}

Note that attributes in code fences must come after the opening tag, with any other highlighting processing instruction, e.g.:

```go {.myclass linenos=table,hl_lines=[8,"15-17"],linenostart=199}
// ... code
```
autoHeadingIDType ("github")
The strategy used for creating auto IDs (anchor names). Available types are github, github-ascii and blackfriday. github produces GitHub-compatible IDs, github-ascii will drop any non-Ascii characters after accent normalization, and blackfriday will make the IDs compatible with Blackfriday, the default Markdown engine before Hugo 0.60. Note that if Goldmark is your default Markdown engine, this is also the strategy used in the anchorize template func.

Highlight

This is the default highlight configuration. Note that some of these settings can be set per code block, see Syntax Highlighting.

{{< code-toggle config="markup.highlight" />}}

For style, see these galleries:

For CSS, see Generate Syntax Highlighter CSS.

Table of contents

{{< code-toggle config="markup.tableOfContents" />}}

These settings only works for the Goldmark renderer:

startLevel
The heading level, values starting at 1 (h1), to start render the table of contents.
endLevel
The heading level, inclusive, to stop render the table of contents.
ordered
If true, generates an ordered list instead of an unordered list.

Markdown render hooks

See Markdown Render Hooks.