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115 lines
3.9 KiB
Markdown
115 lines
3.9 KiB
Markdown
---
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title: Configure Markup
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description: How to handle Markdown and other markup related configuration.
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date: 2019-11-15
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categories: [getting started,fundamentals]
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keywords: [configuration,highlighting]
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weight: 65
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sections_weight: 65
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slug: configuration-markup
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toc: true
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---
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## Configure Markup
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{{< new-in "0.60.0" >}}
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See [Goldmark](#goldmark) for settings related to the default Markdown handler in Hugo.
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Below are all markup related configuration in Hugo with their default settings:
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{{< code-toggle config="markup" />}}
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**See each section below for details.**
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### Goldmark
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[Goldmark](https://github.com/yuin/goldmark/) is from Hugo 0.60 the default library used for Markdown. It's fast, it's [CommonMark](https://spec.commonmark.org/0.29/) compliant and it's very flexible.
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This is the default configuration:
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{{< code-toggle config="markup.goldmark" />}}
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For details on the extensions, refer to [this section](https://github.com/yuin/goldmark/#built-in-extensions) of the Goldmark documentation
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Some settings explained:
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unsafe
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: By default, Goldmark does not render raw HTMLs and potentially dangerous links. If you have lots of inline HTML and/or JavaScript, you may need to turn this on.
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typographer
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: This extension substitutes punctuations with typographic entities like [smartypants](https://daringfireball.net/projects/smartypants/).
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attribute
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: 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.
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{{< new-in "0.81.0" >}} In Hugo 0.81.0 we added support for adding attributes (e.g. CSS classes) to Markdown blocks, e.g. tables, lists, paragraphs etc.
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A blockquote with a CSS class:
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```md
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> foo
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> bar
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{.myclass}
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```
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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.:
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```md
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* Fruit
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* Apple
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* Orange
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* Banana
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{.fruits}
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* Dairy
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* Milk
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* Cheese
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{.dairies}
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{.list}
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```
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Note that attributes in [code fences](/content-management/syntax-highlighting/#highlighting-in-code-fences) must come after the opening tag, with any other highlighting processing instruction, e.g.:
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````
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```go {.myclass linenos=table,hl_lines=[8,"15-17"],linenostart=199}
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// ... code
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```
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````
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autoHeadingIDType ("github") {{< new-in "0.62.2" >}}
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: 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](#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](/functions/anchorize/) template func.
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### Highlight
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This is the default `highlight` configuration. Note that some of these settings can be set per code block, see [Syntax Highlighting](/content-management/syntax-highlighting/).
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{{< code-toggle config="markup.highlight" />}}
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For `style`, see these galleries:
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* [Short snippets](https://xyproto.github.io/splash/docs/all.html)
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* [Long snippets](https://xyproto.github.io/splash/docs/longer/all.html)
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For CSS, see [Generate Syntax Highlighter CSS](/content-management/syntax-highlighting/#generate-syntax-highlighter-css).
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### Table Of Contents
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{{< code-toggle config="markup.tableOfContents" />}}
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These settings only works for the Goldmark renderer:
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startLevel
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: The heading level, values starting at 1 (`h1`), to start render the table of contents.
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endLevel
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: The heading level, inclusive, to stop render the table of contents.
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ordered
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: Whether or not to generate an ordered list instead of an unordered list.
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## Markdown Render Hooks
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See [Markdown Render Hooks](/templates/render-hooks/).
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