html_to_markdown
¶
The html_to_markdown
filter converts a block of HTML to Markdown:
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{% apply html_to_markdown %}
<html>
<h1>Hello!</h1>
</html>
{% endapply %}
|
You can also use the filter on an entire template which you include
:
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{{ include('some_template.html.twig')|html_to_markdown }}
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Note
The html_to_markdown
filter is part of the MarkdownExtension
which
is not installed by default. Install it first:
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$ composer require twig/markdown-extra
|
On Symfony projects, you can automatically enable it by installing the
twig/extra-bundle
:
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$ composer require twig/extra-bundle
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Or add the extension explicitly on the Twig environment:
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use Twig\Extra\Markdown\MarkdownExtension;
$twig = new \Twig\Environment(...);
$twig->addExtension(new MarkdownExtension());
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If you are not using Symfony, you must also register the extension runtime:
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use Twig\Extra\Markdown\DefaultMarkdown;
use Twig\Extra\Markdown\MarkdownRuntime;
use Twig\RuntimeLoader\RuntimeLoaderInterface;
$twig->addRuntimeLoader(new class implements RuntimeLoaderInterface {
public function load($class) {
if (MarkdownRuntime::class === $class) {
return new MarkdownRuntime(new DefaultMarkdown());
}
}
});
|
html_to_markdown
is just a frontend; the actual conversion is done by one of
the following compatible libraries, from which you can choose:
- league/html-to-markdownリーグ/html-マークダウン
- michelf/php-markdownmichelf/php-マークダウン
- erusev/parsedownerusev/parsedown
Depending on the library, you can also add some options by passing them as an argument
to the filter. Example for league/html-to-markdown
:
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{% apply html_to_markdown({hard_break: false}) %}
<html>
<h1>Hello!</h1>
</html>
{% endapply %}
|