* pgg-pgp.el (lookup-key-string): Use `call-process' instead of

`pgg-pgp-process-region'.
(encrypt-region): Use `pgg-process-when-success'; if the output
buffer is empty, don't copy errors, just return nil.
(decrypt-region): Likewise.
(verify-region): Likewise.
(sign-region): Accept optional argument `clearsign'.

diff --git a/pgg-pgp.el b/pgg-pgp.el
index dd4cd44..e2dad34 100644 (file)
--- a/pgg-pgp.el
+++ b/pgg-pgp.el
@@ -115,9 +115,10 @@
 (luna-define-method lookup-key-string ((scheme pgg-scheme-pgp) 
                                       string &optional type)
   (let ((args (list "+batchmode" "+language=en" "-kv" string)))
-    (pgg-pgp-process-region (point)(point) nil
-                           pgg-pgp-program args)
-    (with-current-buffer pgg-output-buffer
+    (with-current-buffer (get-buffer-create pgg-output-buffer)
+      (buffer-disable-undo)
+      (erase-buffer)
+      (apply #'call-process pgg-pgp-program nil t args)
       (goto-char (point-min))
       (cond
        ((re-search-forward "^pub\\s +[0-9]+/" nil t);PGP 2.*
@@ -148,15 +149,13 @@
                          recipients)))))
     (pgg-pgp-process-region start end passphrase 
                            pgg-pgp-program args)
-    (with-current-buffer pgg-output-buffer
-      (if (zerop (buffer-size))
-         (insert-buffer-substring pgg-errors-buffer)
-       (let ((packet 
-              (cdr (assq 1 (pgg-parse-armor-region 
-                            (point-min)(point-max))))))
-         (pgg-add-passphrase-cache 
-          (cdr (assq 'key-identifier packet))
-          passphrase))))
+    (pgg-process-when-success
+      (let ((packet 
+            (cdr (assq 1 (pgg-parse-armor-region 
+                          (point-min)(point-max))))))
+       (pgg-add-passphrase-cache 
+        (cdr (assq 'key-identifier packet))
+        passphrase)))
     ))
 
 (luna-define-method decrypt-region ((scheme pgg-scheme-pgp) 
@@ -171,13 +170,11 @@
          '("+verbose=1" "+batchmode" "+language=us" "-f")))
     (pgg-pgp-process-region start end passphrase 
                            pgg-pgp-program args)
-    (with-current-buffer pgg-output-buffer
-      (when (zerop (buffer-size))
-       (insert-buffer-substring pgg-errors-buffer)))
+    (pgg-process-when-success nil)
     ))
 
 (luna-define-method sign-region ((scheme pgg-scheme-pgp) 
-                                start end)
+                                start end &optional clearsign)
   (let* ((pgg-pgp-user-id pgg-default-user-id)
         (passphrase
          (pgg-read-passphrase 
@@ -185,16 +182,21 @@
           (luna-send scheme 'lookup-key-string
                      scheme pgg-pgp-user-id 'sign)))
         (args 
-         (list "-fbast" "+verbose=1" "+language=us" "+batchmode"
+         (list (if clearsign "-fast" "-fbast")
+               "+verbose=1" "+language=us" "+batchmode"
                "-u" pgg-pgp-user-id)))
     (pgg-pgp-process-region start end passphrase 
                             pgg-pgp-program args)
-    (with-current-buffer pgg-output-buffer
-      (if (zerop (buffer-size))
-         (insert-buffer-substring pgg-errors-buffer)
+    (pgg-process-when-success
+      (goto-char (point-min))
+      (while (re-search-forward "\r$" end t)
+       (replace-match ""))
+      (when (re-search-forward "^-+BEGIN PGP SIGNATURE" nil t);XXX
        (let ((packet 
               (cdr (assq 2 (pgg-parse-armor-region 
-                            (point-min)(point-max))))))
+                            (progn (beginning-of-line 2)
+                                   (point))
+                            (point-max))))))
          (pgg-add-passphrase-cache 
           (cdr (assq 'key-identifier packet))
           passphrase))))
@@ -213,11 +215,8 @@
     (pgg-pgp-process-region (point-min)(point-max) nil
                            pgg-pgp-program args)
     (delete-file orig-file)
-    (delete-file signature)
-    (set-buffer pgg-output-buffer)
-    (with-current-buffer pgg-output-buffer
-      (when (zerop (buffer-size))
-       (insert-buffer-substring pgg-errors-buffer)))
+    (if signature (delete-file signature))
+    (pgg-process-when-success nil)
     ))
 
 (luna-define-method insert-key ((scheme pgg-scheme-pgp))