# Common Cross Reference Utilities

## Templates

`db.ulink.tooltip`

- Generate the tooltip for an external link

`db.xref.content`

- Generate the content for a cross reference

`db.xref.target`

- Generate the target for a cross reference

`db.xref.tooltip`

- Generate the tooltip for a cross reference

db.ulink.tooltip

Generate the tooltip for an external link

### Parameters

This template has no parameters.

db.xref.content

Generate the content for a cross reference

### Parameters

This template has no parameters.

db.xref.target

Generate the target for a cross reference

### Parameters

`linkend`

- The `id` of the target element

`target`

- The target element

`is_chunk`

- Whether the `target` node is known to be a chunked node

db.xref.tooltip

Generate the tooltip for a cross reference

### Parameters

This template has no parameters.