CODEWITHSUNDEEP
pythonemacsfolding
Dror
Dror

Reputation: 13081

The scope of python code folding in emacs

My little research suggests that the simplest way to get code folding for Python in Emacs (24.4) is (see the comment of @scytale on this answer):

(add-hook 'python-mode-hook 'outline-minor-mode)

This works almost great. The problem is the scope of folding. Consider the following example:

if foo == bar:
   do 1
   do 2
else:
   do 3
   do 4
do 5
do 6

If point in in either of the first three lines then folding looks like:

if foo == bar:...
else:
   do 3
   do 4
do 5
do 6

So far so good. However, if the point is in lines 4-6 then folded view is:

if foo == bar:
   do 1
   do 2
else:...

Note that do 5 and do 6 are folded as well. Is there a way to limit the folding only to the right block?

Upvotes: 2

Views: 982

Answers (1)

Ehvince
Ehvince

Reputation: 18395

It looks like the package yafolding does what you want: http://wikemacs.org/wiki/Folding#Yafolding

I could hide the else part without hiding the rest.

Here's a little Hydra for it:

(defhydra yafolding-hydra (:color red :columns 3)
  "
  Fold code based on indentation levels.
  "
  ("t" yafolding-toggle-element "toggle element")
  ("s" yafolding-show-element "show element")
  ("h" yafolding-hide-element "hide element")
  ("T" yafolding-toggle-all "toggle all")
  ("S" yafolding-show-all "show all")
  ("H" yafolding-hide-all "hide all")
  ("p" yafolding-hide-parent-element "hide parent element")
  ("i" yafolding-get-indent-level "get indent level")
  ("g" yafolding-go-parent-element "go parent element"))

(global-set-key (kbd "C-c f") 'yafolding-hydra/body)

Upvotes: 3

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