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Re: hideshow minor-mode

From: Shiyuan
Subject: Re: hideshow minor-mode
Date: Mon, 15 Oct 2012 18:30:09 -0500

Yes, that solves the problem. Now, I can turn on hs-minor-mode. 
But actually the block in my major mode is defined by tags, not by braces/parentheses, like,  
   This is the block.
   This is the block.

accord to the commentary in the hideshow.el file, we can define the BEGIN and the END of the block by regex, this is what I did, 

 (add-to-list 'hs-special-modes-alist '(mymode "\\[begin]" "\\[end]" "#" nil nil))

However, it doesn't work. Anything else I need to do? or is there other packages allow me to fold the source where the blocks are defined in this way?  Thanks. 


On Mon, Oct 15, 2012 at 1:04 PM, Michael Heerdegen <> wrote:
Shiyuan <> writes:

> I want to turn-on the hide-show-minor-mode in a user-defined
> mymode. But it gives me the error: mymode doesn't support hide show
> minor mode. I have put (require 'hideshow) at the beginning of
> mymode.el, and also
> (hs-minor-mode 1) in the body of the definition of the major mode, and
> after that
> I put (add-to-list 'hs-special-modes-alist '(mymode "{" "}" "/[*/]"
> nil nil)) in mymode.el.
> What else I should do to utilize the hs-minor-mode in mymode? Thanks.

Enabling `hs-minor-mode' tests if `comment-start' and `comment-end' are
bound to something non-nil and fails otherwise.  This happens even
before `hs-special-modes-alist' is handled.  IMHO this doesn't make much
sense.  FWIW, your minor-mode must bind `comment-start' and

If your mode doesn't have comments at all, you can bind these to a
regexp that always fails matching - like "\\=[^[:ascii:][:nonascii:]]".

Does that help?


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