;; - caching of visited sites (both content and cursor position),
;; - pleasant and configurable colouring of Gopher directories,
;; - direct visualisation of image files,
+;; - (m)enu key support, similar to Emacs' info browser,
;; - clickable web and gopher links in plain text.
;; The caching mechanism works by maintaining a hierarchy of visited
"i\tfake\tfake\t1"
"i - tab/shift-tab: next/prev directory entry on current page\tfake\tfake\t1"
"i - RET/mouse-1: open directory entry under cursor\tfake\tfake\t1"
+ "i - m: select a directory entry by name (autocompletes)\tfake\tfake\t1"
"i - u: return to parent directory entry\tfake\tfake\t1"
"i - g: go to a particular page\tfake\tfake\t1"
"i - r: redraw current page (using cached contents if available)\tfake\tfake\t1"
;; Face customizations
(defface elpher-index
- '((((background dark)) :foreground "deep sky blue")
- (((background light)) :foreground "blue"))
- "Face used for index records.")
+ '((t :inherit org-drawer))
+ "Face used for directory type directory records.")
(defface elpher-text
- '((((background dark)) :foreground "white")
- (((background light)) :weight bold))
- "Face used for text records.")
+ '((t :inherit org-tag))
+ "Face used for text type directory records.")
-(defface elpher-info '()
- "Face used for info records.")
+(defface elpher-info
+ '((t :inherit org-default))
+ "Face used for info type directory records.")
(defface elpher-image
- '((((background dark)) :foreground "green")
- (t :foreground "dark green"))
- "Face used for image records.")
+ '((t :inherit org-level-4))
+ "Face used for image type directory records.")
(defface elpher-search
- '((((background light)) :foreground "orange")
- (((background dark)) :foreground "dark orange"))
- "Face used for search records.")
+ '((t :inherit org-level-5))
+ "Face used for search type directory records.")
(defface elpher-url
- '((((background dark)) :foreground "yellow")
- (((background light)) :foreground "dark red"))
- "Face used for url records.")
+ '((t :inherit org-level-6))
+ "Face used for url type directory records.")
(defface elpher-binary
- '((t :foreground "magenta"))
- "Face used for binary records.")
+ '((t :inherit org-level-7))
+ "Face used for binary type directory records.")
(defface elpher-unknown
- '((t :foreground "red"))
- "Face used for unknown record types.")
+ '((t :inherit org-warning))
+ "Face used for directory records with unknown/unsupported types.")
(defface elpher-margin-key
- '((((background dark)) :foreground "white"))
- "Face used for margin key.")
+ '((t :inherit org-tag))
+ "Face used for directory margin key.")
(defface elpher-margin-brackets
- '((t :foreground "blue"))
- "Face used for brackets around margin key.")
+ '((t :inherit org-special-keyword))
+ "Face used for brackets around directory margin key.")
;; Other customizations
(defun elpher-insert-index (string)
"Insert the index corresponding to STRING into the current buffer."
- (dolist (line (split-string string "\r\n"))
+ ;; Should be able to split directly on CRLF, but some non-conformant
+ ;; LF-only servers sadly exist, hence the following.
+ (dolist (line (split-string (replace-regexp-in-string "\r" "" string) "\n"))
(unless (= (length line) 0)
(elpher-insert-index-record line))))
getter)
'action #'elpher-click-link
'follow-link t
- 'help-echo (format "mouse-1, RET: open %s on %s port %s"
+ 'help-echo (format "mouse-1, RET: open '%s' on %s port %s"
selector host port)))
(pcase type
- (?i (elpher-insert-margin) ; Information
+ (?i (elpher-insert-margin) ;; Information
(insert (propertize display-string
'face 'elpher-info)))
- (?h (elpher-insert-margin "W") ; Web link
+ (?h (elpher-insert-margin "W") ;; Web link
(let ((url (elt (split-string selector "URL:") 1)))
(insert-text-button display-string
'face 'elpher-url
'action #'elpher-click-url
'follow-link t
'help-echo (format "mouse-1, RET: open url %s" url))))
- (?.) ; Occurs at end of index, can safely ignore.
+ (?.) ;; Occurs at end of index, can safely ignore.
(tp (elpher-insert-margin (concat (char-to-string tp) "?"))
(insert (propertize display-string
'face 'elpher-unknown-face)))))
getter)
'action #'elpher-click-link
'follow-link t
- 'help-echo (format "mouse-1, RET: open %s on %s port %s"
+ 'help-echo (format "mouse-1, RET: open '%s' on %s port %s"
selector host port)))
(make-text-button (match-beginning 0)
(match-end 0)
(message "Can only download gopher links, not general URLs.")))
(message "No link selected."))))
+(defun elpher-build-link-map ()
+ "Build alist mapping link names to destination nodes in current buffer."
+ (let ((link-map nil)
+ (b (next-button (point-min) t)))
+ (while b
+ (add-to-list 'link-map (cons (button-label b) b))
+ (setq b (next-button (button-start b))))
+ link-map))
+
+(defun elpher-menu ()
+ "Select a directory entry by name. Similar to the info browser (m)enu command."
+ (interactive)
+ (let* ((link-map (elpher-build-link-map)))
+ (if link-map
+ (let ((key (let ((completion-ignore-case t))
+ (completing-read "Directory entry/link (tab to autocomplete): " link-map nil t))))
+ (if (and key (> (length key) 0))
+ (let ((b (cdr (assoc key link-map))))
+ (goto-char (button-start b))
+ (button-activate b)))))))
+
;;; Mode and keymap
;;
(define-key map (kbd "R") 'elpher-reload)
(define-key map (kbd "w") 'elpher-view-raw)
(define-key map (kbd "d") 'elpher-download)
+ (define-key map (kbd "m") 'elpher-menu)
(when (fboundp 'evil-define-key)
(evil-define-key 'normal map
(kbd "TAB") 'elpher-next-link
(kbd "r") 'elpher-redraw
(kbd "R") 'elpher-reload
(kbd "w") 'elpher-view-raw
- (kbd "d") 'elpher-download))
+ (kbd "d") 'elpher-download
+ (kbd "m") 'elpher-menu))
map)
"Keymap for gopher client.")
The Lambda Lab / projects / elpher.git / blobdiff