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Feature: support for subscript and superscript

See original GitHub issue

Hi! I have to add a button for subscript in the editor toolbar. But turns out, the subscript and superscript functionalities aren’t fully implemented. I did see a few variables (IS_SUBSCRIPT, IS_SUPERSCRIPT) in the source code, but I didn’t see them being used anywhere. I also went through the doc, but wasn’t able to find anything of much relevance. So I just wanted to know the state of this feature. Also, please let me know if I am missing something. Thanks 😃

Issue Analytics

  • State:closed
  • Created a year ago
  • Comments:7 (7 by maintainers)

github_iconTop GitHub Comments

Profulcommented, Apr 20, 2022

It is available as part of TextFormatType

Like strikethrough implementation you have to implement for ‘subscript’ or ‘superscript’

  1. You have to add class name here PlaygroundEditorTheme.js
  2. Provide CSS style here PlaygroundEditorTheme.css
  3. editor.dispatchCommand(FORMAT_TEXT_COMMAND, 'superscript')
acywatsoncommented, Apr 20, 2022

thanks @Proful. Any clue why are we using CSS to implement this rather than using <sup> and <sub> tags?

Maybe we should be? We can look into it. I guess the classes might be more flexible than relying on browser styling, but now I’m thinking about the semantics of not having the tags.

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