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54 lines
1.6 KiB
Markdown
54 lines
1.6 KiB
Markdown
---
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title: transform.Highlight
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description: Renders code with a syntax highlighter.
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categories: []
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keywords: [highlight]
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params:
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functions_and_methods:
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aliases: [highlight]
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returnType: template.HTML
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signatures: ['transform.Highlight CODE LANG [OPTIONS]']
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aliases: [/functions/highlight]
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---
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The `highlight` function uses the [Chroma] syntax highlighter, supporting over 200 languages with more than 40 [highlighting styles].
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[chroma]: https://github.com/alecthomas/chroma
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[highlighting styles]: /quick-reference/syntax-highlighting-styles/
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## Arguments
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The `transform.Highlight` shortcode takes three arguments.
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CODE
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: (`string`) The code to highlight.
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LANG
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: (`string`) The language of the code to highlight. Choose from one of the [supported languages]. This value is case-insensitive.
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OPTIONS
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: (`map or string`) A map or comma-separated key-value pairs wrapped in quotation marks. Set default values for each option in your [site configuration]. The key names are case-insensitive.
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[site configuration]: /configuration/markup#highlight
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[supported languages]: /content-management/syntax-highlighting#languages
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## Examples
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```go-html-template
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{{ $input := `fmt.Println("Hello World!")` }}
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{{ transform.Highlight $input "go" }}
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{{ $input := `console.log('Hello World!');` }}
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{{ $lang := "js" }}
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{{ transform.Highlight $input $lang "lineNos=table, style=api" }}
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{{ $input := `echo "Hello World!"` }}
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{{ $lang := "bash" }}
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{{ $opts := dict "lineNos" "table" "style" "dracula" }}
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{{ transform.Highlight $input $lang $opts }}
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```
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## Options
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{{% include "_common/syntax-highlighting-options.md" %}}
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