Questions tagged [code-folding]

Code folding is a feature of Emacs that allows one to ‘fold’ (collapse/hide) and ‘unfold’ (expand/reveal) large blocks of code.

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23 views

Add code block line in emacs

In visual studio, there is a very convenient line with + and - to show the code which blocks it belongs to. I was wondering if there was the same function in emacs. ,
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1answer
124 views

Folding custom regular expressions in emacs?

Consider a pattern/regular expression I will call reg which matches multiple times in an emacs buffer. I want emacs to recognize all matches for reg and replace (temporarily, like folding) each ...
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11 views

Got “js3-ast-root does not define a visitor-traversal function” error with js3-mode on Emacs Windows

I searched the exact string js3-ast-root does not define a visitor-traversal function but got no match...maybe it is a new issue? GNU Emacs 26.1 (build 1, i686-w64-mingw32) Windows 10 1903 js-mode ...
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1answer
217 views

Can I hide the part of long lines that exceeds the visual line?

Is it possible to hide the part of long lines that exceeds the visual line rather than wrapping it into further visual lines?
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64 views

How to align latex tables when using macro folding

I have a latex table which contains some long commands like includegraphics or href which makes the table very nasty to read. To get a better view I fold all macros in the table and want to use ...
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2answers
149 views

Fold all methods in a Python class with Evil

How can I fold all the methods in a Python class? I use Evil and would prefer a pure Evil solution, if possible. I'm looking for a quick way to take something like this: class LongClassIDidNotWrite(...
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90 views

`Outline minor mode` folding

When I use outline-hide-body inside Elisp code, I would expect the folding to show me the overview of 3+ ; levels. But it still shows the code, basically all of it with folded bodies. Is there a ...
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35 views

deeply nested loops and conditionals

I am refactoring legacy code. Looks like: for (int i = 0; i < something.length; i++) { .... .... lots of code here .... if (a.good != b.bad) { .... .... .... ...
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1answer
95 views

Folding headers containing source code blocks in an org file?

I always refer to org mode when I want to document anything, but what I am struggling with right now is how to make folding mechanism work when my headers contain source code blocks under a list ...
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1answer
87 views

Auctex: Fold all environments of a specific type in a buffer

With auctex I can run TeX-fold-env the environment on which point currently is located. How can I fold all environments foo (\begin{foo}... \end{foo}) in my buffer at once? And how to unfold all ...
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0answers
55 views

Unfold/expand tree when undoing

When I hit the wrong key in a folded org-mode buffer and I hit undo, the cursor normally jumps to some folded location and it's pretty hard to understand what is going on. Expanding the parents of ...
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35 views

vimish-fold fold overlay highlight colour

Is there a way to change vimish-fold's fold highlight colour? I tried customize-group but didn't see an option to change it.
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3answers
224 views

Verilog mode to navigate from begin to end

I am using verilog mode for Emacs. I am trying to find which begin is paired with which end. Is there any way to do this in Emacs?
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2answers
374 views

JSON file folding and step-by-step unfolding

I need to look at larger, quite deeply nested JSON files in Emacs. Similar to the terminal tool json-view I would like to start with the JSON file completely folded and then open each level step-by-...
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1answer
188 views

How to fold / collapse the first comment block on file load?

Is there a way to fold the first comment of a file on load? While I don't like code folding in general, it can be handy in this one instance when every file has a boiler plate header which isn't ...
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0answers
160 views

outline minor mode folding enhancements wanted

This query is two questions both related to latex major mode (not Auctex), outline minor mode, code folding. I eventually solved these questions myself. My "answers are given below the ========== ...
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32 views

ESS folding for R6 classes

What is the proper way to install, configure and activate folding of R script files? I followed emacswiki.org/emacs/FoldingMode but it doesn't seems to work. I installed folding.el to .emacs/lisp/. ...
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124 views

collapse input cell in ein

I am using ein with emacs 25-3. As some of the cells I am writing contain classes definitions, I would like to be able to collapse them to show only the first line. I know output cells can be toggled ...
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1answer
112 views

Fold code using headlines inside org-mode elisp source code block

To manage my config I use org-mode. To manage packages inside this I use use-package. Problem is that there are packages that require a lot of configuration like ibuffer and org-mode. Now I'm looking ...
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1answer
105 views

Please help understanding following elisp code of origami package

In file origami.el of package origami from MELPA is the function origami-fold-node and there is the following piece of code, which I do not understand: (when (-some? (lambda (pair) (...
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1answer
337 views

how do you fold/unfold complex ruby code blocks

I found a snippet that let's me fold bad(large) blocks of code (add-hook 'ruby-mode-hook (lambda () (hs-minor-mode))) (eval-after-load "hideshow" '(add-to-list 'hs-special-modes-alist ...
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1answer
191 views

Folding code between a literal “begin”/“end” block using Hideshow

A formatted input file (*.alm) often contains a large section of columned data. To fold this and improve navigation, I've tried to implement a hs-special-mode-alist entry from hideshow.el. (setq hs-...
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0answers
66 views

How to disable code folding for coq?

When I do isearch on the buffer having coq mode it somehow executes code folding, something like (... *)... I have tried to use (setq company-coq-disabled-features '(code-folding)) for disabling code ...
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1answer
208 views

Vim Triple Braces Code Folding in Emacs?

I am migrating from Vim to Emacs because I can't get Org mode to work in Vim. In Emacs is there a way to replicate Vim's marker folding so that # Foo {{{ foo # }}} Turns into +-- 1 lines: # ...
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1answer
170 views

outline mode: Fold everything when loading file (specifically LaTeX mode)

I am using outline minor mode for LaTeX mode and would like emacs to automatically hide all section environments when opening a .tex file. How could I do that?
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0answers
242 views

Making relative line numbers behave well with folds?

Context: I have relative line numbers displayed in emacs. If there is a fold (for example: in org-mode), these relative numbers appear to "jump". For example if I'm on line 0 over a fold, emacs could ...
2
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1answer
89 views

In Auctex, how could I fold acronyms?

Auctex comes with a folding mode that already folds most of the uninteresting things. However, acronym macros are not folded. How can I instruct Auctex to fold acronym macros (e.g., \ac, \acp, \acf, ...
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1answer
201 views

Fold entire preamble in AUCTeX

Can AUCTeX be configured to fold the entire LaTeX preamble (i.e., hide everything before \begin{document})? For example, it would be nice if the the following document: \documentclass[letter,11pt]{...
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1answer
42 views

How to fold the highest headline which I am currently in?

I often do the following sequence in my org-mode file: Go to the root headline from current position Fold the whole subtree Is there a way to this sequence with a shortcut?
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0answers
102 views

hs-minor-mode: hide only some comment

In ESS mode with hs-minor-mode on, I want to collapse only those comments which directly belong to a function, not other comments which are separated by newlines. Take this example: ############## ##...
1
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1answer
448 views

Org-mode hide tags in outline view

Can anyone think of a way to hide org-mode tags, perhaps something along the lines of this solution to completely hide the properties drawer? I would love to hide tags but still have them searchable ...
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1answer
30 views

My code for streching text lines collapses any org-mode headline in a buffer. How to avoid it?

I have a code for changing a paragraph of auto filled text into a paragraph with one sentence per line, where each sentence stretches out in its full length. This code is perfect when composing and ...
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1answer
147 views

How can I hide general text in parentheses?

I have some legal text that is peppered with digressions and interpolations in parentheses, so many that it is hard to keep track of the main text. Pasting the text into emacs at least allows me to ...
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0answers
39 views

mangled terminal output after failing emacsclient / folding mode launch

I consistently get the following problem on Emacs 24.5.1 with folding package (version 20140401.3) for which I've found a workaround but would like to understand what was going on. As you can see in ...
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1answer
651 views

Folding by levels (like a vim)

How can I implement folding behaviour like a vim? In vim I has this code: set foldenable " enable folding set foldmethod=indent " fold sections by indentation set foldcolumn=1 " ...
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0answers
28 views

Show additional lines that are not part of the file

What I want is the opposite of code folding. Code folding looks like this: Unfolded: 1 * Top Level 2 ** Second Level 3 Info that belongs to Second Level 4 More Info that belongs to Second Level 5 ** ...
2
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3answers
228 views

Org-Mode cycling inside subtree impossible?

In org mode I go to a subtree. This subtree contains lots of text, let's say a thousand lines. I want to look up some information in it. I got it, but now I want to collapse that subtree I'm in ...
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2answers
259 views

loading the `folding` mode with `use-package`

I am using the folding minor mode in Emacs which I get installed with the following use-package macro: (use-package folding :ensure t) The above works and ensures that folding is installed ...
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2answers
217 views

browsing/navigating reStructuredText

What Emacs utilities can provide better browsing and navigation of reST documents? Alternatively, how to configure existing utilities to work with reST? What I mean, why I ask: Of the lightweight ...
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0answers
42 views

Using hideshow with Perl code / POD

I've got emacs' HideShow mode working well with Perl code (let's face it, it's a doddle), but I don't know if it's even possible to get it to fold POD comments as well. Has anyone done this (and if so,...
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34 views

How can I fold each word in a header?

I'd like to fold each word in a header in org-mode. In other words, I'd like to toggle between this view: * emacs is fun and this view : * e i f and hopefully toggle each word like : * e is f ...
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1answer
525 views

evil-vimish-fold based on syntax

evil-vimish-fold is really great for custom folds. However it's not clear to me how you would accomplish syntax based folds. Does evil-vimish-fold work with JavaScript mode? Can I set evil-vimish-...
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2answers
2k views

Outline editing, like org-mode, for JSON

I am trying to edit a Swagger JSON file in emacs. It contains large nested JSON objects, so I want to collapse and hide some of them. I have tried origami-mode, configured as origami-c-style-parser ...
2
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1answer
777 views

hs-minor-mode with python.el - hide if statements, for/while loops, etc

Currently, I use the hs-minor-mode to collapse my python code and make it easier to work with - however, by default this only folds def my_function(): blocks. Is it possible to get it to work with if, ...
1
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1answer
501 views

Fundamental mode doesn't support HideShow minor mode

I want hs-minor-mode features, I chose it amongst many options I reviewed. How to make it work? The only package I have atm is web-mode. I put this line in my init file: (hs-minor-mode) The error ...
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0answers
331 views

Can emacs beautify existing tcl source code?

I'm just getting started with tcl; what sort of beautifier, or prettifier, or formatter, is there for tcl with emacs? My main interest would be to fix existing scripts so that particularly the ...
5
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1answer
70 views

What mix of customisations are required to have org files always open exactly as they were closed?

org-customize has a node for startup folded, with options no fold, fold, content, and show everything. There doesn't seem to be an option for "remember last folded state". For such a customisable ...
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0answers
77 views

Collapse regexp matches within a line

Is there a way I can collapse/expand regexp matches within a line? e.g. let's say I have this list and want to hide some parts of it temporarily: * apple: fruit; red * butter: dairy; yellow when I ...
3
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1answer
627 views

Hideshow with python hiding only one part

I've been trying to use Hide Show package in emacs. I encountered a problem when using python. Let's say I have the following code: When I have hit the command hs-hide-level. This is the result. ...
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2answers
419 views

How to continue giving list number after insert a block of code

GNU Emacs 24.5.1 (i686-pc-mingw32) Org-mode version 8.2.10 (release_8.2.10 @ e:/emacs/share/emacs/24.5/lisp/org/) In my org file, 1. one thing #+begin_src sh ls -la #+end_src 2. second ...