(defvar elopher-type-margin-width 5)
+(defvar elopher-history '())
+
(defun elopher-type-margin (&optional type-name)
(if type-name
(insert (propertize
'face '(foreground-color . "yellow")))
(insert (make-string elopher-type-margin-width ?\s))))
-(defun elopher-format-i (display-string)
- (elopher-type-margin)
- (insert (propertize display-string 'face '(foreground-color . "white")))
- (insert "\n"))
-
-(defun elopher-format-0 (display-string selector hostname port)
- (elopher-type-margin "T")
- (insert (propertize display-string 'face '(foreground-color . "gray")))
+(defun elopher-make-clickable (string link-function mouse-help)
+ (let ((map (make-sparse-keymap)))
+ (define-key map [mouse-1] link-function)
+ (define-key map (kbd "RET") link-function)
+ (propertize string
+ 'mouse-face 'highlight
+ 'help-echo (concat "mouse-1: " mouse-help)
+ 'keymap map)))
+
+(defun elopher-format-record (display-string margin-key color &optional getter help-text)
+ (elopher-type-margin margin-key)
+ (insert (propertize
+ (if getter
+ (elopher-make-clickable display-string
+ getter
+ help-text)
+ display-string)
+ 'face `(foreground-color . ,color)))
(insert "\n"))
-(defun elopher-format-1 (display-string selector hostname port)
- (elopher-type-margin "/")
- (let ((map (make-sparse-keymap)))
- (define-key map [mouse-1]
- (eval `(lambda () (interactive) (elopher-get-index ,hostname ,port ,selector))))
- (insert (propertize display-string
- 'face '(foreground-color . "cyan")
- 'mouse-face 'highlight
- 'help-echo (format "mouse-1: follow link to \"%s\" on %s port %s"
- selector hostname port)
- 'keymap map))
- (insert "\n")))
+(defun elopher-make-getter (func address)
+ (let ((selector (car address))
+ (hostname (cadr address))
+ (port (caddr address)))
+ `(lambda ()
+ (interactive)
+ (,func ,hostname ,port ,selector))))
+
+(defun elopher-make-help (address)
+ (let ((selector (car address))
+ (hostname (cadr address))
+ (port (caddr address)))
+ (format "open \"%s\" on %s port %s"
+ selector hostname port)))
(defun elopher-process-record (line)
(let* ((type (elt line 0))
(fields (split-string (substring line 1) "\t"))
- (g-display-string (elt fields 0))
- (g-selector (elt fields 1))
- (g-hostname (elt fields 2))
- (g-port (elt fields 3)))
+ (display-string (elt fields 0))
+ (selector (elt fields 1))
+ (hostname (elt fields 2))
+ (port (elt fields 3))
+ (address (list selector hostname port)))
(pcase type
- (?i (elopher-format-i g-display-string))
- (?0 (elopher-format-0 g-display-string g-selector g-hostname g-port))
- (?1 (elopher-format-1 g-display-string g-selector g-hostname g-port)))))
+ (?i (elopher-format-record display-string nil "white"))
+ (?0 (elopher-format-record display-string "T" "gray"
+ (elopher-make-getter 'elopher-get-text address)
+ (elopher-make-help address)))
+ (?1 (elopher-format-record display-string "/" "cyan"
+ (elopher-make-getter 'elopher-get-index address)
+ (elopher-make-help address))))))
(defvar elopher-incomplete-record "")
(elopher-process-record (elt lines idx))
(setq elopher-incomplete-record (elt lines idx))))))
-(defun elopher-filter (proc string)
+(defun elopher-index-filter (proc string)
(with-current-buffer (get-buffer "*elopher*")
(let ((marker (process-mark proc)))
(if (not (marker-position marker))
(defun elopher-get-index (host &optional port path)
(switch-to-buffer "*elopher*")
(erase-buffer)
+ (setq elopher-incomplete-record "")
(make-network-process
:name "elopher-process"
:host host
:service (if port port 70)
- :filter #'elopher-filter)
+ :filter #'elopher-index-filter)
(process-send-string "elopher-process" (concat path "\n")))
+(defun elopher-text-filter (proc string)
+ (with-current-buffer (get-buffer "*elopher*")
+ (let ((marker (process-mark proc)))
+ (if (not (marker-position marker))
+ (set-marker marker 0 (current-buffer)))
+ (save-excursion
+ (goto-char marker)
+ (dolist (line (split-string string "\r"))
+ (insert line))
+ (set-marker marker (point))))))
+
+(defun elopher-get-text (host port selector)
+ (switch-to-buffer "*elopher*")
+ (erase-buffer)
+ (setq elopher-incomplete-record "")
+ (make-network-process
+ :name "elopher-process"
+ :host host
+ :service port
+ :filter #'elopher-text-filter)
+ (process-send-string "elopher-process" (concat selector "\n")))
+
(defun elopher ()
"Start gopher client."
(interactive)