On Wed, 06 Apr 2011 20:23:17 +0100, Andreas Amann <a.amann@ucc.ie> wrote:
> 
> since commit 44d3c57e (emacs: Display any unexpected output from notmuch
> search) I see a number of messages of the form
> 
> Error: Unexpected output from notmuch search:
> thread:000000000000XXXX 
> 
> after notmuch-search in emacs. 


FWIW, the patch below solves the problem for me.

Andreas

---------------------
[PATCH] Sanitize "Subject:" and "Author:" fields to not contain control characters in notmuch-search

When a Subject field contained encoded CRLF sequences, these sequences
would appear unfiltered in the output of notmuch search. This confused
the notmuch emacs interface leading to "Unexpected Output"
messages. This is now fixed by replacing all characters with ASCII
code less than 32 with a question mark.
---
 notmuch-search.c |   22 ++++++++++++++++++++--
 1 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/notmuch-search.c b/notmuch-search.c
index 8b90121..fc13e60 100644
--- a/notmuch-search.c
+++ b/notmuch-search.c
@@ -108,6 +108,20 @@ format_item_id_text (unused (const void *ctx),
     printf ("%s%s", item_type, item_id);
 }
 
+static char *
+sanitize_string(const void *ctx, const char *str)
+{
+    char *out, *loop;
+
+    loop = out = talloc_strdup (ctx, str);
+
+    for(;*loop;loop++){
+	if ((unsigned char)(*loop) < 32)
+	    *loop = '?';
+    }
+    return out;
+}
+
 static void
 format_thread_text (const void *ctx,
 		    const char *thread_id,
@@ -117,13 +131,17 @@ format_thread_text (const void *ctx,
 		    const char *authors,
 		    const char *subject)
 {
+    void *ctx_quote = talloc_new (ctx);
+
     printf ("thread:%s %12s [%d/%d] %s; %s",
 	    thread_id,
 	    notmuch_time_relative_date (ctx, date),
 	    matched,
 	    total,
-	    authors,
-	    subject);
+	    sanitize_string(ctx_quote, authors),
+	    sanitize_string(ctx_quote, subject));
+
+    talloc_free (ctx_quote);
 }
 
 static void
-- 
1.7.4.1