I am looking for a plugin that can do the following:
1. When I write a post/page, I can write something [internallink slug-name | display-link-name]. If a post/page with that slug exists, it should create a link to it with the "display-name" mentioned.
2. If no post/page with that slug exists it should simply display the "display-link-name" without any link.
3. When the author/admin of the page is logged in, the "display-link-name" should become a dotted link which when clicked allows the author to create a new post with that slug.
I tried to search for a plugin like that. But still not successful. Does anyone know about any plugin like that? Or can someone write one? I wish I had good knowledge of PHP so that I could have written one myself.