From e9c2a7ef7c90866d7304c7bdbadf20ca1f617631 Mon Sep 17 00:00:00 2001
From: Steve Howell <showell@zulipchat.com>
Date: Mon, 23 Dec 2019 20:14:08 +0000
Subject: [PATCH] typeahead: Extract get_language_matcher.

---
 static/js/composebox_typeahead.js | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/static/js/composebox_typeahead.js b/static/js/composebox_typeahead.js
index a0419e6c01..10b50a2881 100644
--- a/static/js/composebox_typeahead.js
+++ b/static/js/composebox_typeahead.js
@@ -42,9 +42,11 @@ exports.topics_seen_for = function (stream_name) {
     return topic_names;
 };
 
-function query_matches_language(query, lang) {
+function get_language_matcher(query) {
     query = query.toLowerCase();
-    return lang.indexOf(query) !== -1;
+    return function (lang) {
+        return lang.indexOf(query) !== -1;
+    };
 }
 
 function clean_query(query) {
@@ -779,6 +781,8 @@ exports.compose_content_matcher = function (completing, token) {
         return get_emoji_matcher(token);
     case 'slash':
         return get_slash_matcher(token);
+    case 'syntax':
+        return get_language_matcher(token);
     }
 
     return function (item) {
@@ -788,8 +792,6 @@ exports.compose_content_matcher = function (completing, token) {
             return query_matches_person_or_user_group(token, item);
         case 'stream':
             return query_matches_user_group_or_stream(token, item);
-        case 'syntax':
-            return query_matches_language(token, item);
         case 'topic_jump':
             // topic_jump doesn't actually have a typeahead popover, so we return quickly here.
             return true;