[gnus git] branch master updated: m0-5-131-gd1a9bfb =1= qp.el (quoted-printable-decode-region): Inline+CSE+strength-reduction

       via  d1a9bfb4363aceb094957e8d94cfca73be3e2c13 (commit)
      from  2df323a009ddd334ef992f32b7a8441daa6b6256 (commit)


- Log -----------------------------------------------------------------
commit d1a9bfb4363aceb094957e8d94cfca73be3e2c13
Author: Stefan Monnier <[email protected]>
Date:   Mon Sep 10 05:00:20 2012 +0000

    qp.el (quoted-printable-decode-region): Inline+CSE+strength-reduction

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 1f9de72..90e1db7 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,7 @@
+2012-09-10  Stefan Monnier  <[email protected]>
+
+	* qp.el (quoted-printable-decode-region): Inline+CSE+strength-reduction.
+
 2012-09-07  Chong Yidong  <[email protected]>
 
 	* gnus-util.el
diff --git a/lisp/qp.el b/lisp/qp.el
index bfa1fe0..c4487c6 100644
--- a/lisp/qp.el
+++ b/lisp/qp.el
@@ -53,14 +53,7 @@ them into characters should be done separately."
       ;; or both of which are lowercase letters in "abcdef", is
       ;; formally illegal. A robust implementation might choose to
       ;; recognize them as the corresponding uppercase letters.''
-      (let ((case-fold-search t)
-	    (decode-hex #'(lambda (n1 n2)
-			    (+ (* (if (<= n1 ?9) (- n1 ?0)
-				    (if (<= n1 ?F) (+ (- n1 ?A) 10)
-				      (+ (- n1 ?a) 10))) 16)
-			       (if (<= n2 ?9) (- n2 ?0)
-				 (if (<= n2 ?F) (+ (- n2 ?A) 10)
-				   (+ (- n2 ?a) 10)))))))
+      (let ((case-fold-search t))
 	(narrow-to-region from to)
 	;; Do this in case we're called from Gnus, say, in a buffer
 	;; which already contains non-ASCII characters which would
@@ -78,8 +71,15 @@ them into characters should be done separately."
 		 (let* ((n (/ (- (match-end 0) (point)) 3))
 			(str (make-string n 0)))
 		   (dotimes (i n)
-		     (aset str i (funcall decode-hex (char-after (1+ (point)))
-					  (char-after (+ 2 (point)))))
+                     (let ((n1 (char-after (1+ (point))))
+                           (n2 (char-after (+ 2 (point)))))
+                       (aset str i
+                             (+ (* 16 (- n1 (if (<= n1 ?9) ?0
+                                              (if (<= n1 ?F) (- ?A 10)
+                                                (- ?a 10)))))
+                                (- n2 (if (<= n2 ?9) ?0
+                                        (if (<= n2 ?F) (- ?A 10)
+                                          (- ?a 10)))))))
 		     (forward-char 3))
 		   (delete-region (match-beginning 0) (match-end 0))
 		   (insert str)))

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Summary of changes:
 lisp/ChangeLog |    4 ++++
 lisp/qp.el     |   20 ++++++++++----------
 2 files changed, 14 insertions(+), 10 deletions(-)

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