---
title: Webgen::Tag::Metainfo
---
## Description

The meta tag is used to copy meta information verbatim. It is used as fallback when no other tag
class for a specific tag name could not be found. For example, if you define a meta information with
the key `revision`, you can put the tag `\{revision:}` into a block of a page file and the value
gets substituted automatically.

An every day usage example for the meta tag would be including the title of a page in the
`head`-section of a HTML template or specifying the language of the HTML file by using the
`\{lang:}` tag.

## Examples

<table class="examples">
<tr>
  <th>Usage</th><th>Output</th>
</tr>
<tr>
  <td>\{title: }</td>
  <td>{title:}</td>
</tr>
<tr>
  <td>\{lang: }</td>
  <td>{lang:}</td>
</tr>
</table>