Use when navigating files and positions in Emacs - provides elisp patterns for finding files, searching, and position management
E-ink Monitor Compatibility: User uses an e-ink monitor that only supports black, white, and grey.
:foreground "red", :foreground "cyan", etc.):weight bold, :weight light, :slant italic, :underline t for differentiation(find-file "/path/to/file")
(find-file-noselect "/path/to/file") ; open without switching
(project-find-file) ; interactive
(project-root (project-current)) ; get project root
recentf-list ; list of recent files
(recentf-open-files) ; interactive
(goto-line 42)
(forward-line n) ; move n lines (negative goes backward)
(beginning-of-line)
(end-of-line)
(goto-char position)
(forward-char n)
(backward-char n)
(forward-word)
(backward-word)
(search-forward "text" nil t) ; returns nil if not found
(re-search-forward "regex" nil t)
(search-backward "text" nil t)
(re-search-backward "regex" nil t)
(re-search-forward "pattern" limit-pos t) ; stop at limit-pos
(save-excursion
(goto-char (point-min))
(search-forward "target")
;; point restored after body
)
(save-restriction
(narrow-to-region start end)
;; work with narrowed buffer
) ; narrowing restored
(point-marker) ; marker at current point
(set-marker marker position)
(marker-position marker)
(goto-char marker)
(other-window 1) ; next window
(select-window window)
(get-buffer-window "*buffer*")
(selected-window)
(split-window-right)
(split-window-below)
(delete-window)
(re-search-forward "\\(group1\\).*\\(group2\\)")
(match-string 1) ; first group
(match-string 2) ; second group
(match-beginning 0) ; start of full match
(match-end 0) ; end of full match
(save-excursion
(goto-char (point-min))
(while (re-search-forward "pattern" nil t)
;; process each match
(let ((matched (match-string 0)))
;; do something
)))
(let ((file "/path/to/file")
(line 42))
(find-file file)
(goto-char (point-min))
(forward-line (1- line))) ; lines are 1-indexed
(save-restriction
(org-narrow-to-subtree) ; or narrow-to-defun
;; work within narrowed region
(point-min) ; now returns subtree start
)
(find-file-at-point) ; interactive
(ffap-file-at-point) ; get filename at point
default-directory ; current directory
(cd "/new/path")
(directory-files "/path")
(directory-files "/path" t "\\.el$") ; full paths, only .el files
(directory-files-recursively "/path" "\\.org$")