# Tell vim to treat character as full width

I am wondering if it is possible to tell vim to treat an individial code point in the unicode plain. I am aware of the ambiwidth option, but it does not help with my current task because the relevant characters are in the upper unicode plane, eg. \mathcal characters.

• Hi and welcome! Could you tell us more about what you are trying to achieve? This could help us give you a relevant answer. May 27 '20 at 0:45
• I'm using a plugin that conceals mathcal with unicode math characters, and the character gets cutoff halfway. May 27 '20 at 0:49
• @MaxXiong welcome to Vi and Vim! Please edit the question to add the detail about mathcal? If you can give a full reproducer, that would help someone give you a great answer... Please also specify whether you're using Vim in a terminal or a GUI version of Vim (which?) and which fonts you're using... May 27 '20 at 3:52