Comments on: Code Folding Update in R2008a

By: David

David — Wed, 27 Mar 2013 22:02:14 +0000

First off, I’m loving the code folding!! I do agree/use that if you need some random block of code folded you can use cells ‘%%’. However I also use these in my code to differentiate sections and don’t want extra temporary ‘%%’ running all over that need to be deleted later.

2 suggestions:
a. add a distinguisher to be able to fold any section of code. ie:
start_fold
code to be folded
end_fold

Have then act like tic toc. not really effecting the code. In this way after I’m done I can search for ‘start_fold’ and replace with ‘ ‘ and same with ‘end_fold’. As a temporary fix I use:
if 1
code to be folded
end

which can cover comments, code, loops etc.

b. I’d also like to be able to fold block comments:
%{
comments to be folded
%}

rather then having to put them in a separate cell.

By: Mike

Mike — Wed, 21 Apr 2010 12:01:39 +0000

@josy,

I am not sure I understand your question. You can enable code folding through the preferences: File -> Preferences -> Editor -> Code Folding

By: ponmani

ponmani — Wed, 21 Apr 2010 07:53:57 +0000

Sir, How can the code folding option in the m-file editor can be enabled to apply fold and expand operations. Kindly reply me in this regard.
With thanks and regards,
josy,

By: Mike

Mike — Mon, 01 Mar 2010 12:52:26 +0000

@Pablo,

Are you interested in nested cells in this case for evaluation/publishing purposes or just for code folding? We have requests for both functionalities, so I was just looking to see where to add your use case.

By: Pablo

Pablo — Mon, 01 Mar 2010 11:47:38 +0000

Hello to all,

I am really optimistic with this folding thing. I like it and I think it could be really usefull for structuring the code.
There is one thing I missed, I would like to be able to make cells within cells, and give the hole program an structure within a few lines that could be unfolded at certain places of my convenience.

By: Ken

Ken — Thu, 04 Jun 2009 00:58:29 +0000

Hi Juliette,

Note that you could use cells in order to fold chunks of code you don’t want to see. While this isn’t the selection based folding your asking for, it is a reasonable workaround. To fold a block of code, you could insert cell markers like this:

%% cell start
% code to fold
%% cell end

-Ken

By: Juliette Salexa

Juliette Salexa — Wed, 03 Jun 2009 22:24:59 +0000

We should be able to fold whatever we want. Not just those listed above. I should be able to highlight a few lines, and hide them .. sometimes I don’t want to see huge blocks of code that are irrelavent to the current situation, and these blocks of code are not appropriate to incorporate into functions.

Whether or not it’s considered “dirty” or “sloppy” programming style, I like programming in a certain way, and I’m the only one using my programs, so I should be allowed to do what I want!

In Maple I can hide whatever I want, why not in MATLAB ??

By: Ken

Ken — Wed, 01 Apr 2009 10:46:06 +0000

Hi Kay, We decided that an if block including all it's elseif and else statements is a single logical entity, and should be folded as such. To get the behavior you're after, I'd encourage you to break out the internals of your if/elseblocks into sub-functions or inner functions, each of which are foldable. -Ken

By: Kay

Kay — Wed, 01 Apr 2009 08:54:30 +0000

why not make single “else”s foldable. You could work on one case, without being botherd with what happens in the other cases, but being able to see the conditions of the other cases/elses.

By: Ken

Ken — Mon, 25 Aug 2008 15:43:32 +0000

Hi Han, Thats an interesting idea, one also present in Xcode via the #pragma mark token. There's a school of thought that says you shouldn't dirty your code in an effort to accommodate your IDE (check out Jeff Atwood's article on code folding), though I'm not quite sure where I stand on the issue yet. I will submit an enhancement request though! -Ken