# Using the TextFilters to filter text in an extension

**URL:** <https://www.ruby-forum.com/t/using-the-textfilters-to-filter-text-in-an-extension/118163>\
**Category:** Radiant CMS\
**Created:** [October 24, 2007, 12:50pm UTC](https://www.ruby-forum.com/t/using-the-textfilters-to-filter-text-in-an-extension/118163 "2007-10-24T12:50:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Hans-Christian\_Fjel](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/f19dbf/32.png) [@Hans-Christian\_Fjel](https://www.ruby-forum.com/u/Hans-Christian_Fjel)\
**Post date:** [October 24, 2007, 12:50pm UTC](https://www.ruby-forum.com/t/using-the-textfilters-to-filter-text-in-an-extension/118163/1 "2007-10-24T12:50:55Z")

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Hello.

I am currently extending the comments extension with some extra  
functionality, and trying to finish some of Ryan’s todos.

One of these is that also the text in the comments should be filtered  
through a text filter, at the moment only textile is used, but only  
needs to add a drop down box to be able to change this.

I have tried to find out how the Radiant core uses the filter\_id and  
TextFilters, but have not managed. Can someone please enlighten me?

I could not find any information about this in the mailing list, but  
please guide me there if this has been discussed before.

Greetings

Hans-Christian Fjeldberg  
removed\_email\_address@domain.invalid