Prevent corruption of ansi interpreter state.

[elpher.git] / elpher.el

diff --git a/elpher.el b/elpher.el
index ef133c6..e3cf717 100644 (file)
--- a/elpher.el
+++ b/elpher.el
@@ -92,13 +92,13 @@
       (lambda (s)
         (let ((_xterm-color-render nil))
           (xterm-color-filter s)))
-    'ansi-color-filter-apply)
+    #'ansi-color-filter-apply)
   "A function to filter out ANSI escape sequences.")
 
 (defalias 'elpher-color-apply
   (if (fboundp 'xterm-color-filter)
-      'xterm-color-filter
-    'ansi-color-apply)
+      #'xterm-color-filter
+    #'ansi-color-apply)
   "A function to apply ANSI escape sequences.")
 
 ;;; Global constants
@@ -134,14 +134,6 @@
   "Association list from types to getters, renderers, margin codes and index faces.")
 
 
-;;; Internal variables
-;;
-
-;; buffer-local
-(defvar elpher--gemini-page-headings nil
-  "List of headings on the page.")
-
-
 ;;; Declarations to avoid compiler warnings.
 ;;
 
@@ -608,7 +600,8 @@ previously-visited pages,unless NO-HISTORY is non-nil."
      (unless (eq major-mode 'elpher-mode)
        ;; avoid resetting buffer-local variables
        (elpher-mode))
-     (let ((inhibit-read-only t))
+     (let ((inhibit-read-only t)
+           (ansi-color-context nil)) ;; clean ansi interpreter state
        (setq-local network-security-level
                    (default-value 'network-security-level))
        (erase-buffer)
@@ -711,12 +704,28 @@ the host operating system and the local network capabilities.)"
     (condition-case nil
         (let* ((kill-buffer-query-functions nil)
                (port (elpher-address-port address))
-               (service (if (> port 0) port default-port))
                (host (elpher-address-host address))
-               (socks (or elpher-socks-always (string-suffix-p ".onion" host)))
+               (service (if (> port 0) port default-port))
                (response-string-parts nil)
                (bytes-received 0)
                (hkbytes-received 0)
+               (socks (or elpher-socks-always (string-suffix-p ".onion" host)))
+               (gnutls-params (list :type 'gnutls-x509pki
+                                    :hostname host
+                                    :keylist
+                                    (elpher-get-current-keylist address)))
+               (proc (if socks (socks-open-network-stream "elpher-process" nil host service)
+                       (make-network-process :name "elpher-process"
+                                             :host host
+                                             :family (and force-ipv4 'ipv4)
+                                             :service service
+                                             :buffer nil
+                                             :nowait t
+                                             :tls-parameters
+                                             (and use-tls
+                                                  (cons 'gnutls-x509pki
+                                                        (apply #'gnutls-boot-parameters
+                                                               gnutls-params))))))
                (timer (run-at-time elpher-connection-timeout nil
                                    (lambda ()
                                      (elpher-process-cleanup)
@@ -739,21 +748,7 @@ the host operating system and the local network capabilities.)"
                                                                  response-processor
                                                                  nil force-ipv4))
                                       (t
-                                       (elpher-network-error address "Connection time-out."))))))
-               (gnutls-params (list :type 'gnutls-x509pki :hostname host
-                                    :keylist (elpher-get-current-keylist address)))
-               (proc (if socks (socks-open-network-stream "elpher-process" nil host service)
-                       (make-network-process :name "elpher-process"
-                                             :host host
-                                             :family (and force-ipv4 'ipv4)
-                                             :service service
-                                             :buffer nil
-                                             :nowait t
-                                             :tls-parameters
-                                             (and use-tls
-                                                  (cons 'gnutls-x509pki
-                                                        (apply #'gnutls-boot-parameters
-                                                               gnutls-params)))))))
+                                       (elpher-network-error address "Connection time-out.")))))))
           (setq elpher-network-timer timer)
           (set-process-coding-system proc 'binary 'binary)
           (set-process-query-on-exit-flag proc nil)
@@ -1463,6 +1458,10 @@ treatment that a separate function is warranted."
         (insert (propertize display-string 'face 'elpher-unknown)))
       (insert "\n"))))
 
+;; buffer-local
+(defvar elpher--gemini-page-headings nil
+  "List of headings on the page.")
+
 (defun elpher-gemini-insert-header (header-line)
   "Insert header described by HEADER-LINE into a text/gemini document.
 The gemini map file line describing the header is given