indent-guide

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• indent-guide.el

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show vertical lines to guide indentation

** Screencast

Current block only

[[screencast.gif]]

All blocks

[[screencast2.gif]]

** Usage

Require this script

: (require 'indent-guide)

and call command =M-x indent-guide-mode=.

If you want to enable =indent-guide-mode= in all buffers, call function =indent-guide-global-mode=.

: (indent-guide-global-mode)

** Configuration

Column lines are propertized with =indent-guide-face=. So you may configure this face to make lines more pretty in your colorscheme.

: (set-face-background 'indent-guide-face "dimgray")

If you want indent-guide to show guide lines only in idle-time, you can set delay.

: (setq indent-guide-delay 0.1)

You may also change the character for guides.

: (setq indent-guide-char ":")

NOT RECOMMENDED: To show not only one guide line but all guide lines recursively, set =indent-guide-recursive= non-nil.

: (setq indent-guide-recursive t)

=indent-guide-recursive= seems buggy and laggy, so I recommend the =highlight-indentation= package for that purpose.

** Comparisons with highlight-indentation

• look and feel

• better block detection in LISP-like languages

  : (foo (foo : |(foobar baz |(foobar baz : || (foobar | | |(foobar : || |(qux)))) | | | (qux)))) : : indent-guide highlight-indentation

• supports TABs

• worse in performance, especially when you open a file that includes very large, deep blocks

** Known Limitations

does not work perfectly with following modes (commands) :

• =company-mode=, =auto-complete-mode=, =popup.el= (tooltips may not rendered perfectly)
• =pager.el= (guide lines are not rendered immediately, after =pager-up/down=)

contributions are welcome !