[Oberon] Revision of a Text vs. update of display in a Gadget.

[peter at easthope.ca]

Joerg, 
  thanks for replying.

From:	Joerg <joerg.straube at iaeth.ch>
Date:	Sun, 8 Mar 2020 01:51:50 +0100
> To analyze your case you should explain a little more in detail, under 
> what conditions you observed the behaviour and what you did with what 
> Gadget.

It's a sporadic consequence when 
    Mail.Wrap 70 ^ 
is applied to some lines of Text separated by an empty line.  

Wrap is described here, including a link to the source. 
https://en.wikibooks.org/wiki/Talk:Oberon/A2/Oberon.Mail.Mod#CutLines_vs._Wrap
Near the end of Oberon.Mail, following CutLines.

The observation is that in rare cases an empty line (separation of 
paragraphs) appears to be removed. Apparent damage can be worse in 
more rare cases. Only in a Document viewer; not in a plain Text 
viewer. Scrolling out of view and back in view makes the empty line 
visible again. Storing the viewer to a file and opening again also 
restores the correct view.  That's why I hypothesize that an update is 
needed in my code. 

When another case turns up I might find a way to transmit it so that 
you see directly.

Thanks again,                          ... Lyall E.

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Tel: +1 604 670 0140            Bcc: peter at easthope. ca