[PATCH v3 1/6] cli: sanitize tabs and newlines to spaces in notmuch search

[Jani Nikula]

Sanitize tabs and newlines to spaces rather than question marks in
--output=summary --format=text output.

This will also hide any difference in unfolding a header that has been
folded with a tab. Our own header parser replaces tabs with spaces,
while gmime would retain the tab.
---
 notmuch-search.c           | 4 +++-
 test/T090-search-output.sh | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/notmuch-search.c b/notmuch-search.c
index 91b5d10..0262eb3 100644
--- a/notmuch-search.c
+++ b/notmuch-search.c
@@ -41,7 +41,9 @@ sanitize_string (const void *ctx, const char *str)
     loop = out = talloc_strdup (ctx, str);
 
     for (; *loop; loop++) {
-	if ((unsigned char)(*loop) < 32)
+	if (*loop == '\t' || *loop == '\n')
+	    *loop = ' ';
+	else if ((unsigned char)(*loop) < 32)
 	    *loop = '?';
     }
     return out;
diff --git a/test/T090-search-output.sh b/test/T090-search-output.sh
index 5ccfeaf..86544ac 100755
--- a/test/T090-search-output.sh
+++ b/test/T090-search-output.sh
@@ -388,7 +388,7 @@ add_message "[subject]='two =?ISO-8859-1?Q?line=0A_subject?=
 	headers'"
 notmuch search id:"$gen_msg_id" | notmuch_search_sanitize >OUTPUT
 cat <<EOF >EXPECTED
-thread:XXX   2001-01-05 [1/1] Notmuch Test Suite; two line? subject headers (inbox unread)
+thread:XXX   2001-01-05 [1/1] Notmuch Test Suite; two line  subject headers (inbox unread)
 EOF
 test_expect_equal_file OUTPUT EXPECTED
 
-- 
1.8.5.2