From 81c3ae5e6d80efd3c87f42552876697c498005d2 Mon Sep 17 00:00:00 2001
From: Arun Isaac
Date: Wed, 12 Sep 2018 17:56:13 +0530
Subject: quoted-printable: Add q-encoding-encode.

* email/quoted-printable.scm (q-encoding-encode): New function.
* tests/quoted-printable.scm (q-encoding wikipedia example): Rename to
...
(q-encoding wikipedia example: decoding): ... this.
(q-encoding wikipedia example: encoding): New test.
---
 email/quoted-printable.scm | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'email/quoted-printable.scm')

diff --git a/email/quoted-printable.scm b/email/quoted-printable.scm
index b6f4c54..11abaff 100644
--- a/email/quoted-printable.scm
+++ b/email/quoted-printable.scm
@@ -24,7 +24,8 @@
   #:use-module (srfi srfi-26)
   #:export (quoted-printable-decode
             quoted-printable-encode
-            q-encoding-decode))
+            q-encoding-decode
+            q-encoding-encode))
 
 ;; TODO: Error out on invalid quoted-printable input
 (define quoted-printable-decode
@@ -89,3 +90,9 @@
     (lambda (c)
       (if (char=? c #\_) #\Space c))
     str)))
+
+(define (q-encoding-encode bv)
+  (string-map
+   (lambda (c)
+     (if (char=? c #\Space) #\_ c))
+   (quoted-printable-encode bv)))
-- 
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