Added license and readme.

[elpher.git] / elopher.el

diff --git a/elopher.el b/elopher.el
index 9d45428..871e2b2 100644 (file)
--- a/elopher.el
+++ b/elopher.el
@@ -35,44 +35,48 @@
                 'help-echo (concat "mouse-1: " mouse-help)
                 'keymap map)))
 
-(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")
+(defun elopher-format-record (display-string margin-key color &optional getter help-text)
+  (elopher-type-margin margin-key)
   (insert (propertize
-           (elopher-make-clickable display-string
-                                  `(lambda () (interactive)
-                                     (elopher-get-text ,hostname ,port ,selector))
-                                  (format "open \"%s\" on %s port %s"
-                                          selector hostname port))
-           'face '(foreground-color . "gray")))
+           (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 "/")
-  (insert (propertize
-           (elopher-make-clickable display-string
-                                   `(lambda () (interactive)
-                                      (elopher-get-index ,hostname ,port ,selector))
-                                   (format "follow link to \"%s\" on %s port %s"
-                                           selector hostname port))
-           'face '(foreground-color . "cyan")))
-  (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 "")
 
@@ -97,6 +101,7 @@
 (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
@@ -111,12 +116,14 @@
           (set-marker marker 0 (current-buffer)))
       (save-excursion
         (goto-char marker)
-        (insert string)
+        (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
@@ -129,8 +136,8 @@
   (interactive)
   (elopher-get-index (read-from-minibuffer "Gopher host: ") 70))
 
-(elopher-get-index "cosmic.voyage")
-;; (elopher-get-index "gopher.floodgap.com")
+;; (elopher-get-index "cosmic.voyage")
+(elopher-get-index "gopher.floodgap.com")
 ;; (elopher-get-index "maurits.id.au")
 
 (defun elopher-quit ()