> For the complete documentation index, see [llms.txt](https://docs.yarnspinner.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yarnspinner.dev/api/csharp/yarn.unity/yarn.unity.replacementmarkuphandler.md).

# ReplacementMarkupHandler

Class in [Yarn.Unity](/api/csharp/yarn.unity.md)

Inherits from `UnityEngine.MonoBehaviour`

## Summary

An attribute marker processor receives a marker found in a Yarn line, and optionally rewrites the marker and its children into a new form.

```csharp
public abstract class ReplacementMarkupHandler : MonoBehaviour, IAttributeMarkerProcessor
```

## Methods

| Name                                                                                                                                                                                              | Description |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- |
| [ProcessReplacementMarker(MarkupAttribute,StringBuilder,List,string)](/api/csharp/yarn.unity/yarn.unity.replacementmarkuphandler/yarn.unity.replacementmarkuphandler.processreplacementmarker.md) |             |

## See Also

* [LineProviderBehaviour](/api/csharp/yarn.unity/yarn.unity.lineproviderbehaviour.md): A `UnityEngine.MonoBehaviour` that produces [LocalizedLine](/api/csharp/yarn.unity/yarn.unity.localizedline.md) s, for use in Dialogue Presenters.