From f3e601e3403698b81c26d9c048231e73240d53c2 Mon Sep 17 00:00:00 2001
From: Vladimir Kunin <v.b.kunin@gmail.com>
Date: Mon, 16 May 2022 21:06:30 +0300
Subject: [PATCH] =?UTF-8?q?:bug:=20N=C2=B04834=20-=20Fix=20mentions=20work?=
 =?UTF-8?q?ing=20only=20with=20latin=20alphabet=20(no=20dash,=20no=20cyril?=
 =?UTF-8?q?lic,=20no=20asian,=20...)=20(#274)?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

* :bug: Add the 'pattern' parameter with the unicode Cyrillic block regex to the CKEditor mentions config.

* Revert ":bug: Add the 'pattern' parameter with the unicode Cyrillic block regex to the CKEditor mentions config."

This reverts commit 1f5ac000b677a44bdd4ee1160b2f972446516484.

* :bug: Rewrite the CKEditor Mentions plugin regexp to make it suitable for all Unicode alphabets.
---
 js/ckeditor.on-init.js | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/js/ckeditor.on-init.js b/js/ckeditor.on-init.js
index d485099938..25131cdcd3 100644
--- a/js/ckeditor.on-init.js
+++ b/js/ckeditor.on-init.js
@@ -21,3 +21,24 @@ if ((CKEDITOR !== undefined) && (CKEDITOR.plugins.registered['disabler'] === und
 
 		});
 }
+
+// Rewrite the CKEditor Mentions plugin regexp to make it suitable for all Unicode alphabets.
+if (CKEDITOR !== undefined && CKEDITOR.plugins.registered['mentions']) {
+	// from https://github.com/ckeditor/ckeditor4/blob/a3786007fb979d7d7bff3d10c34a2d422935baed/plugins/mentions/plugin.js#L147
+	function createPattern(marker, minChars) {
+		let pattern = marker + '[\\p{L}\\p{N}_-]';
+		if ( minChars ) {
+			pattern += '{' + minChars + ',}';
+		} else {
+			pattern += '*';
+		}
+		pattern += '$';
+		return new RegExp(pattern, 'u');
+	}
+
+	CKEDITOR.on('instanceLoaded', event => {
+		event.editor.config.mentions.forEach(config => {
+			config.pattern = createPattern(config.marker, config.minChars);
+		});
+	});
+}