[wp-trac] [WordPress Trac] #39574: Editor patterns: add empty headings/quotes

[WordPress Trac]

#39574: Editor patterns: add empty headings/quotes
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 Reporter:  mahu2401      |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Editor        |    Version:  4.3
 Severity:  normal        |   Keywords:
  Focuses:                |
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 Currently some patterns normally only work if there's other text after the
 leading character(s). I you type `## Test` and press enter, a new h2
 element will be created. If you type `##` followed by zero or more spaces,
 no heading is added and the `##` stays "normal" text. I think this is and
 should be the intended behaviour, so no empty elements are created.
 But if yout enter `## Test`, then move the cursor between `##` and Test
 followed by pressing enter, an empty heading will be created and the
 resulting html looks like this:
 {{{
 <h2></h2>
 Test
 }}}
 Until switching to the text editor and back, you are not able to add text
 to the heading because it doesn't show up in visual mode.

 When doing the same with `>`, it doesn't create an empty blockquote, but
 removes the leading char. The visual editor is then adding an additional
 line of whitespace, where you can't put your cursor in. This line
 disappears also after switching to text mode and back.

 I've tested with WP 4.3 and 4.7.1.

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Ticket URL: <https://core.trac.wordpress.org/ticket/39574>
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