How to distinguish between <expr> and non-<expr> mappings?

Posted by ZyX on Stack Overflow See other posts from Stack Overflow or by ZyX
Published on 2010-04-05T13:18:37Z Indexed on 2010/04/05 13:23 UTC
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vimscript

I want to add a possibility of restoring mappings overwritten by my plugin. But the problem is that I cannot distinguish between the following mappings:

inoremap <expr> @ test

and

inoremap @ test

First mapping inserts the contents of the variable test, while second inserts text «test». Both mappings give maparg("@", 'i')=="test" and identical output of inoremap i.

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