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[Fredrik Andersson]

I wonder if it is possible to hide part of text in Emacs?
I would like to compress/expand the text inside a subroutine. 

Before  compression:
--------------------
Function name(a,var z:boolean):Boolean;
Var
 x:Real;
 z:Bollean;
BEGIN
 x:=4;
 z:=True;
END;

After compression:
------------------
Function name(a,var z:boolean):Boolean;


Thanks in advance
Fredrik Andersson

Re: Hide text

[Roodwriter]

Fredrik Andersson wrote:

> I wonder if it is possible to hide part of text in Emacs?
> I would like to compress/expand the text inside a subroutine.
> 
> Before  compression:
> --------------------
> Function name(a,var z:boolean):Boolean;
> Var
>  x:Real;
>  z:Bollean;
> BEGIN
>  x:=4;
>  z:=True;
> END;
> 
> After compression:
> ------------------
> Function name(a,var z:boolean):Boolean;
> 
> 
> Thanks in advance
> Fredrik Andersson

If you're talking about just hiding text you can use the "narrow" function. 
You highlight a region, type C-x n n and everything not highlighted 
disappears. To bring everything back you "widen" it with C-x n w.

It can be handy to confine a macro or search to just a certain area. It 
might also be good if you worked in an office where people could look over 
your shoulder at privileged information.

I've found it's a little bit fragile. Sometimes it will widen all by itself 
so I always check the mode line when I'm about to do something radical.

--Rod

__________

Author of "Linux for Non-Geeks--Clear-eyed Answers for Practical Consumers" 
and "Boring Stories from Uncle Rod." Both are available at 
http://www.rodwriterpublishing.com/index.html

To reply by e-mail, take the extra "o" out of the name.

Re: Hide text

[Benjamin Rutt]

nybban@telia.com (Fredrik Andersson) writes:

> I wonder if it is possible to hide part of text in Emacs?
> I would like to compress/expand the text inside a subroutine. 
>
> Before  compression:
> --------------------
> Function name(a,var z:boolean):Boolean;
> Var
>  x:Real;
>  z:Bollean;
> BEGIN
>  x:=4;
>  z:=True;
> END;
>
> After compression:
> ------------------
> Function name(a,var z:boolean):Boolean;

If all you have in the file are functions, try enabling
outline-minor-mode, and customizing the buffer-local variable
outline-regexp to match your function name.  The idea is that you'd
match the function signature as a top-level outline header.

Maybe something like:

(setq outline-regexp "Function [a-z]+(.*):.*;$")

Then, try M-x hide-subtree on the function name line, and it will hide
the text between that line and the next function.
-- 
Benjamin

Re: Hide text

[Brad Collins]

  The Emacs Wiki has some good examples on how to do this, and check
out the elisp manual for making text invisiable.

  http://www.emacswiki.org/cgi-bin/wiki

  I've had very mixed results in doing this.  It doesn't always work
  the way you intend.

b/

--
Brad Collins
Chenla Labs
Bangkok, Thailand