From ac43db80ded4ec4026ce1a992a6302dcc1553a24 Mon Sep 17 00:00:00 2001
From: TAKAHASHI Tamotsu <ttakah+github@gmail.com>
Date: Fri, 25 Sep 2020 12:21:00 +0900
Subject: [PATCH] Fix matchInContainer false positives

The function should match only the beginnings of lines.

For example, see this testcase:
```
:::spoiler
here is a :::
:::
:::
```
The last line should be completed.

Without this patch, the third line is completed and the last is not.

Signed-off-by: Tamotsu Takahashi <ttakah@gmail.com>
---
 public/js/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/public/js/index.js b/public/js/index.js
index c736cb7f..9f2421cc 100644
--- a/public/js/index.js
+++ b/public/js/index.js
@@ -3137,7 +3137,7 @@ function checkInContainerSyntax () {
 
 function matchInContainer (text) {
   var match
-  match = text.match(/:{3,}/g)
+  match = text.match(/(^|\n):::/gm)
   if (match && match.length % 2) {
     return true
   } else {