[phossler]

It would seem (to me at least) that if I have no text selected, then ...

a) I would not want to insert 'do nothing' tags for bold, italic, color, underline, etc.

So my first thought was to suggest ignoring the [B] or [I] etc.

However, then I realized that ...

b) I might want the tags because I want to insert text between them

So finally I thought possibly

c) a [Run Check] question and cleanup of empty tag pairs

  <h1>test<b><i><u><strike><span style="color: rgb(255, 0, 0)"></span></strike></u></i></b></h1>

Be a little complicated I guess since (as in the example) the <span> is empty making the <strike> empty making the <u> empty making the <i> empty and finally making the <b> empty

I'm not sure, but white space would not count since who wants a bold space

  <h1>test</h1>