How to prevent the reset of a link's title and target attributes?

[mtlehtin]

I have to add internal and external links to the content. I made a custom dialog where you can choose the type of the link and title.

Internal link generates markup like:
<a href="http://sample.url" title="Custom title">sample</a>

and external:
<a href="http://sample.url" class="external" title="Custom title" target="_blank">sample</a>

The first save is successful, but when I open the editor again and save it second time, editor resets link's attributes with default values:
<a href="http://sample.url" class="external" title="Link: http://sample.url">sample</a>

Same happens when I copy paste HTML with e.g. following markup to the editor:
<a href="http://sample.url" class="external" title="Custom title" target="_blank">sample</a>

Editor will reset the title and the target from the link within the paste.

Could it be achieved with dynamic parser rules like followed? Or can I use directly setAttributes? If so, how would that work?

set_attributes: { "target": <use _blank if external link otherwise empty>, "title": <use current title> }

One option would be to use regexp in editor.getValue() to add attributes before save, but that does not seem very wise thing.

[TNAJanssen]

+1

[blast-hardcheese]

A quick hack was to add the following to check_attributes:

var attributeCheckMethods = {
    ...,
    preserve: (function() {
      return function(attributeValue) {
        return attributeValue;
      }
    })(),
};

What this allowed me to do was:

parserRules: {
    tags: {
        check_attributes: {
            href: "url", // important to avoid XSS
            target: "preserve",
            title: "preserve",
        }
    }
}

A better solution might be the addition of a preserve_attributes field, although that might be overkill.

[blast-hardcheese]

The PR is probably wishful thinking, since this project seems extremely unmaintained, but here's hoping!

Edit: Actually, disregard my comment about being unmaintained, I just saw 40 open pull requests-- I didn't look at when the last one was accepted.