"Face used for image records."
:type '(face))
+(defcustom elopher-binary-face '(foreground-color . "magenta")
+ "Face used for image records."
+ :type '(face))
+
(defcustom elopher-unknown-face '(foreground-color . "red")
"Face used for unknown record types."
:type '(face))
(insert " "))
(insert (make-string elopher-margin-width ?\s))))
+(defvar elopher-type-map
+ `((?0 elopher-get-text-node "T" ,elopher-text-face)
+ (?1 elopher-get-index-node "/" ,elopher-index-face)
+ (?g elopher-get-image-node "im" ,elopher-image-face)
+ (?p elopher-get-image-node "im" ,elopher-image-face)
+ (?I elopher-get-image-node "im" ,elopher-image-face)
+ (?4 elopher-get-binary-node "B" ,elopher-binary-face)
+ (?9 elopher-get-binary-node "B" ,elopher-binary-face)
+ (?7 elopher-get-search-node "?" ,elopher-search-face)))
+
(defun elopher-insert-index-record (line)
"Insert the index record corresponding to LINE into the current buffer."
(let* ((type (elt line 0))
(host (elt fields 2))
(port (elt fields 3))
(address (elopher-make-address selector host port))
- (help-string (format "mouse-1, RET: open %s on %s port %s"
- selector host port)))
- (pcase type
- (?i (elopher-insert-margin)
- (insert (propertize display-string
- 'face elopher-info-face)))
- (?0 (elopher-insert-margin "T")
- (insert-text-button display-string
- 'face elopher-text-face
- 'elopher-node (elopher-make-node elopher-current-node
- address
- #'elopher-get-text-node)
- 'action #'elopher-click-link
- 'follow-link t
- 'help-echo help-string))
- (?1 (elopher-insert-margin "/")
- (insert-text-button display-string
- 'face elopher-index-face
- 'elopher-node (elopher-make-node elopher-current-node
- address
- #'elopher-get-index-node)
- 'action #'elopher-click-link
- 'follow-link t
- 'help-echo help-string))
- ((or ?g ?p ?I) (elopher-insert-margin "im")
+ (type-map-entry (alist-get type elopher-type-map)))
+ (if type-map-entry
+ (let ((getter (car type-map-entry))
+ (margin-code (cadr type-map-entry))
+ (face (caddr type-map-entry)))
+ (elopher-insert-margin margin-code)
(insert-text-button display-string
- 'face elopher-image-face
+ 'face face
'elopher-node (elopher-make-node elopher-current-node
address
- #'elopher-get-image-node)
+ getter)
'action #'elopher-click-link
'follow-link t
- 'help-echo help-string))
- (?7 (elopher-insert-margin "S")
- (insert-text-button display-string
- 'face elopher-search-face
- 'elopher-node (elopher-make-node elopher-current-node
- address
- #'elopher-get-search-node)
- 'action #'elopher-click-link
- 'follow-link t
- 'help-echo help-string))
- (?h (elopher-insert-margin "W")
- (let ((url (elt (split-string selector "URL:") 1)))
- (insert-text-button display-string
- 'face elopher-http-face
- 'elopher-url url
- 'action #'elopher-click-url
- 'follow-link t
- 'help-echo (format "mouse-1, RET: open url %s" url))))
- (?.) ; Occurs at end of index, can safely ignore.
- (tp (elopher-insert-margin (concat (char-to-string tp) "?"))
- (insert (propertize display-string
- 'face elopher-unknown-face))))
+ 'help-echo (format "mouse-1, RET: open %s on %s port %s"
+ selector host port)))
+ (pcase type
+ (?i (elopher-insert-margin) ; Information
+ (insert (propertize display-string
+ 'face elopher-info-face)))
+ (?h (elopher-insert-margin "W") ; Web link
+ (let ((url (elt (split-string selector "URL:") 1)))
+ (insert-text-button display-string
+ 'face elopher-http-face
+ 'elopher-url url
+ 'action #'elopher-click-url
+ 'follow-link t
+ 'help-echo (format "mouse-1, RET: open url %s" url))))
+ (?.) ; Occurs at end of index, can safely ignore.
+ (tp (elopher-insert-margin (concat (char-to-string tp) "?"))
+ (insert (propertize display-string
+ 'face elopher-unknown-face)))))
(insert "\n")))
(elopher-get-selector address
(lambda (proc event)
(unless (string-prefix-p "deleted" event)
- (message event)
(elopher-with-clean-buffer
(elopher-insert-index elopher-selector-string))
(elopher-restore-pos)
;; Text retrieval
+(defvar elopher-url-regex "\\(https?\\|gopher\\)://\\([a-z.\-]+\\)\\(?3::[0-9]+\\)?\\(?4:/[^ \r\n\t(),]*\\)")
+
+(defun elopher-buttonify-urls (string)
+ "Turn substrings which look like urls in STRING into clickable buttons."
+ (with-temp-buffer
+ (insert string)
+ (goto-char (point-min))
+ (while (re-search-forward elopher-url-regex nil t)
+ (let ((url (match-string 0))
+ (protocol (downcase (match-string 1))))
+ (if (string= protocol "gopher")
+ (let* ((host (match-string 2))
+ (port 70)
+ (type-and-selector (match-string 4))
+ (type (if (> (length type-and-selector) 1)
+ (elt type-and-selector 1)
+ ?1))
+ (selector (if (> (length type-and-selector) 1)
+ (substring type-and-selector 2)
+ ""))
+ (address (elopher-make-address selector host port))
+ (getter (car (alist-get type elopher-type-map))))
+ (make-text-button (match-beginning 0)
+ (match-end 0)
+ 'elopher-node (elopher-make-node elopher-current-node
+ address
+ getter)
+ 'action #'elopher-click-link
+ 'follow-link t
+ 'help-echo (format "mouse-1, RET: open %s on %s port %s"
+ selector host port)))
+ (make-text-button (match-beginning 0)
+ (match-end 0)
+ 'elopher-url url
+ 'action #'elopher-click-url
+ 'follow-link t
+ 'help-echo (format "mouse-1, RET: open url %s" url)))))
+ (buffer-string)))
+
(defun elopher-process-text (string)
- (let ((chopped-str (replace-regexp-in-string "\r\n\.\r\n$" "\r\n" string)))
- (replace-regexp-in-string "\r" "" chopped-str)))
+ (let* ((chopped-str (replace-regexp-in-string "\r\n\.\r\n$" "\r\n" string))
+ (cleaned-str (replace-regexp-in-string "\r" "" chopped-str)))
+ (elopher-buttonify-urls cleaned-str)))
(defun elopher-get-text-node ()
(let ((content (elopher-node-content elopher-current-node))
(defun elopher-get-node-download ()
(let* ((address (elopher-node-address elopher-current-node))
(selector (elopher-address-selector address)))
- (unwind-protect
- (let* ((filename-proposal (file-name-nondirectory selector))
- (filename (read-file-name "Save file as: "
- nil nil nil
- (if (> (length filename-proposal) 0)
- filename-proposal
- "gopher.file"))))
- (message "Downloading...")
- (setq elopher-download-filename filename)
- (elopher-get-selector address
- (lambda (proc event)
- (let ((coding-system-for-write 'binary))
- (with-temp-file elopher-download-filename
- (insert elopher-selector-string)))
+ (elopher-visit-parent-node) ; Do first in case of non-local exits.
+ (let* ((filename-proposal (file-name-nondirectory selector))
+ (filename (read-file-name "Save file as: "
+ nil nil nil
+ (if (> (length filename-proposal) 0)
+ filename-proposal
+ "gopher.file"))))
+ (message "Downloading...")
+ (setq elopher-download-filename filename)
+ (elopher-get-selector address
+ (lambda (proc event)
+ (let ((coding-system-for-write 'binary))
+ (with-temp-file elopher-download-filename
+ (insert elopher-selector-string)
(message (format "Download complate, saved to file %s."
- elopher-download-filename)))))
- (elopher-visit-parent-node))))
-
+ elopher-download-filename)))))))))
+
;;; Navigation procedures
;;
The Lambda Lab / projects / elpher.git / blobdiff