From 99efa02edf4e3750e19bc28f7b856791356d1583 Mon Sep 17 00:00:00 2001
From: zeripath <art27@cantab.net>
Date: Sat, 13 Aug 2022 19:32:34 +0100
Subject: Switch Unicode Escaping to a VSCode-like system (#19990)

This PR rewrites the invisible unicode detection algorithm to more
closely match that of the Monaco editor on the system. It provides a
technique for detecting ambiguous characters and relaxes the detection
of combining marks.

Control characters are in addition detected as invisible in this
implementation whereas they are not on monaco but this is related to
font issues.

Close #19913

Signed-off-by: Andrew Thornton <art27@cantab.net>
---
 web_src/less/_repository.less | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'web_src/less/_repository.less')

diff --git a/web_src/less/_repository.less b/web_src/less/_repository.less
index fa634479f6..b3f24ee03d 100644
--- a/web_src/less/_repository.less
+++ b/web_src/less/_repository.less
@@ -82,7 +82,11 @@
 
   .broken-code-point {
     font-family: var(--fonts-monospace);
-    color: blue;
+    color: var(--color-blue);
+  }
+
+  .unicode-escaped .ambiguous-code-point {
+    border: 1px var(--color-yellow) solid;
   }
 
   .metas {
-- 
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