Rewrite header folding

We now distinct between sending and display case. For display,
we always use tabs for folding for readability; for sending we
now correctly fold using whitespace found in the header.

Closes #2995. Closes #3080.

1 files changed, 1 insertions, 0 deletions

diff --git a/copy.h b/copy.h
index 9aff9da6..5f12a3c1 100644
--- a/copy.h
+++ b/copy.h
@@ -52,6 +52,7 @@
 #define CH_NOQFROM        (1<<15) /* ignore ">From " line */
 #define CH_UPDATE_IRT     (1<<16) /* update In-Reply-To: */
 #define CH_UPDATE_REFS    (1<<17) /* update References: */
+#define CH_DISPLAY        (1<<18) /* display result to user */
 
 
 int mutt_copy_hdr (FILE *, FILE *, LOFF_T, LOFF_T, int, const char *);