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Re: with-wrapper-hook is obsolete; how to replace it?
From: |
Stefan Monnier |
Subject: |
Re: with-wrapper-hook is obsolete; how to replace it? |
Date: |
Sun, 15 May 2016 14:43:59 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) |
> How do I alter the code to use add-function instead?
> It's not immediately obvious. That is, if there is source code like this:
I don't think you can do it in a backward-compatible way.
Which is why buffer-substring--filter still uses with-wrapper-hook (but
only to implement the obsolete filter-buffer-substring-functions variable).
> then what should I replace the source code with?
The replacement is that instead of using add-hook on
filter-buffer-substring-functions, clients should now use add-function
on filter-buffer-substring-function.
Stefan