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Remove inject-trailing-whitespace functionality

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This was buggy, inefficient and more trouble than its benefits were
worth. Perhaps we can now switch back to highlight-indent-guides...
This commit is contained in:
Henrik Lissner 2017-06-23 17:55:19 +02:00
parent e3eadf596d
commit c60970ff2d
1 changed files with 1 additions and 50 deletions
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51
core/core-ui.el
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@ -193,56 +193,7 @@ mode is detected.")
;; Show uninterrupted indentation markers with some whitespace voodoo.
(def-package! highlight-indentation
:commands (highlight-indentation-mode highlight-indentation-current-column-mode)
:config
(defun doom|inject-trailing-whitespace (start end)
"The opposite of `delete-trailing-whitespace'. Injects whitespace into
buffer so that `highlight-indentation-mode' will display uninterrupted indent
markers. This whitespace is stripped out on save, as not to affect the resulting
file."
(interactive (if (use-region-p)
(list (region-beginning) (region-end))
(list (point-min) (point-max))))
(barf-if-buffer-read-only)
(unless indent-tabs-mode
(with-silent-modifications
(save-excursion
(goto-char start)
(save-match-data
(while (and (re-search-forward "^$" nil t) (<= (point) end))
(let (line-start line-end next-start next-end)
(save-excursion
;; Check previous line indent
(forward-line -1)
(setq line-start (point)
line-end (save-excursion (back-to-indentation) (point)))
;; Check next line indent
(forward-line 2)
(setq next-start (point)
next-end (save-excursion (back-to-indentation) (point)))
;; Back to origin
(forward-line -1)
;; Adjust indent
(let* ((line-indent (- line-end line-start))
(next-indent (- next-end next-start))
(indent (min line-indent next-indent)))
(insert (make-string (if (zerop indent) 0 (1+ indent)) ? )))))
(forward-line 1))))))
nil)
(defun doom|init-highlight-indentation ()
(unless (or indent-tabs-mode buffer-read-only)
(if (or highlight-indentation-mode highlight-indentation-current-column-mode)
(progn
(doom|inject-trailing-whitespace)
(add-hook 'before-save-hook #'delete-trailing-whitespace nil t)
(add-hook 'after-save-hook #'doom|inject-trailing-whitespace nil t))
(remove-hook 'before-save-hook #'delete-trailing-whitespace t)
(remove-hook 'after-save-hook #'doom|inject-trailing-whitespace t)
(with-silent-modifications
(delete-trailing-whitespace)))))
(add-hook! (highlight-indentation-mode highlight-indentation-current-column-mode)
#'doom|init-highlight-indentation))
:commands (highlight-indentation-mode highlight-indentation-current-column-mode))
;; For modes that don't adequately highlight numbers
(def-package! highlight-numbers :commands highlight-numbers-mode)