From 2ab41d508d453be2305b898325a9a87f00aaebda Mon Sep 17 00:00:00 2001
From: Daniel Shahaf <d.s@daniel.shahaf.name>
Date: Wed, 25 Nov 2015 01:46:55 +0000
Subject: 37215: _regex_words: Don't add mismatched parentheses
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

I ran into this in the wild¹, it manifested as the following error message:

    zregexparse:4: not enough regex arguments

¹ https://bug.tasktools.org/browse/TW-1729
---
 Completion/Base/Utility/_regex_words | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'Completion/Base')

diff --git a/Completion/Base/Utility/_regex_words b/Completion/Base/Utility/_regex_words
index 77ba197a4..62c2491bb 100644
--- a/Completion/Base/Utility/_regex_words
+++ b/Completion/Base/Utility/_regex_words
@@ -20,7 +20,13 @@ local tag=$1
 local desc=$2
 shift 2
 
-reply=(\()
+if (( $# )); then
+  reply=(\()
+else
+  # ### Is this likely to happen in callers?  Should we warn?
+  reply=()
+  return
+fi
 
 integer i
 local -a wds
-- 
cgit 1.4.1