id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
14588	CKEditor doesn’t translate 4-byte entities correctly.	Jakub Ś		"== Steps to reproduce ==

Based on: http://stackoverflow.com/questions/36574026/disable-conversion-of-html-entities-in-ckeditor

1. Set below configuration in your CKEditor test page
{{{
CKEDITOR.replace( 'editor1', {
	//entities_processNumerical : 'force'
	entities_additional : '#128247'
} );
}}}

2. Paste the following text into editor and switch to source (and back) ""Foo 📷 Bar""


== Expected result ==

Camera character translated to entity 📷

== Actual result ==

For setting {{{entities_processNumerical : 'force'}}} you will get {{{��}}} in source mode and �� in wysiwyg view.

For setting {{{entities_additional : '#128247'}}} you will get {{{📷&undefined;}}} in source mode and 📷&undefined; in wysiwyg view. The undefined word will be added every time you change modes.

== Other details (browser, OS, CKEditor version, installed plugins) ==

When I checked in code it looks like character is ok in here: https://github.com/ckeditor/ckeditor-dev/blob/master/plugins/entities/plugin.js#L152 but gets destroyed here: https://github.com/ckeditor/ckeditor-dev/blob/master/plugins/entities/plugin.js#L152. It looks like {{{replace}}} method is breaking it.

Now, I'm not sure if this is a problem and if {{{replace}}} method is using {{{charCodeAt}}} or {{{fromCharCode}}} but these methods e.g. [https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charCodeAt charCodeAt] return codes between 0 and 65535 and this seems to be what is happening here. Every character with code below 65356 is a 3-byte character and is handled properly but starting from 65536 4-byte characters get split into two entities. 

Links:[[BR]]
* How to check how many bytes character has: https://mothereff.in/byte-counter 
* Characters Map: http://dev.networkerror.org/utf8/?start=60001&end=70001&cols=6&show_uni_int=on&show_uni_hex=on&show_html_ent=on&show_raw_hex=on
* Something that might help: http://stackoverflow.com/a/6242192/4555078

"	Bug	confirmed	Nice to have (we want to work on it)		General	4.0			loominade