title: tkinter Text Widget: how to indent automatically after a soft line wrap
body: <p>When entering a hyphen at line start, I want the Text widget treat the following text as section where subsequent lines are indented, like so:</p>
  <ul>
  <li>by entering this hyphen (I really mean hyphen, not that bullet that is automatically generated) the section to be indented starts. When reaching the right border, a
  soft wrap is performed (I'm using wrap=tk.WORD) and the new line should look like it does
  here.</li>
  </ul>
  <p>Instead the new line starts at the left border without indentation.</p>
  <p>Among the attributes of the Text widget I found spacing1, spacing2, spacing3 all referring to vertical line space. No hint for horizontal spacing. Am I missing the appropriate attribute or do I have to code the desired behaviour from scratch?</p>
  <p>If so, I would have to bind to the line wrap event, but I think there is none.</p>
  <p>Does anyone have a clue how to solve that?</p>