Chris Muller uploaded a new version of ST80 to project The Trunk:
http://source.squeak.org/trunk/ST80-cmm.181.mcz

==================== Summary ====================

Name: ST80-cmm.181
Author: cmm
Time: 21 April 2015, 9:33:44.003 pm
UUID: b51ef110-93a5-4fdd-aded-8566f530b5a9
Ancestors: ST80-cmm.180

Let forward delete be useful for joining lines.

=============== Diff against ST80-cmm.180 ===============

Item was changed:
  ----- Method: ParagraphEditor>>forwardDelete: (in category 'typing/selecting keys') -----
  forwardDelete: characterStream
  	"Delete forward over the next character.
  	  Make Undo work on the whole type-in, not just the one char.
  	wod 11/3/1998: If there was a selection use #zapSelectionWith: rather than #backspace: which was 'one off' in deleting the selection. Handling of things like undo or typeIn area were not fully considered."
  	| startIndex usel upara uinterval ind stopIndex |
  	startIndex := self mark.
  	startIndex > paragraph text size ifTrue:
  		[sensor keyboard.
  		^ false].
  	self hasSelection ifTrue:
  		["there was a selection"
  		sensor keyboard.
  		self zapSelectionWith: self nullText.
  		^ false].
  	"Null selection - do the delete forward"
  	beginTypeInBlock == nil	"no previous typing.  openTypeIn"
  		ifTrue: [self openTypeIn. UndoSelection := self nullText].
  	uinterval := UndoInterval deepCopy.
  	upara := UndoParagraph deepCopy.
  	stopIndex := startIndex.
  	(sensor keyboard asciiValue = 127 and: [sensor leftShiftDown])
+ 		ifTrue: [stopIndex := (self firstWordBoundaryAfter: stopIndex) - 1].
- 		ifTrue: [stopIndex := (self nextWord: stopIndex) - 1].
  	self selectFrom: startIndex to: stopIndex.
  	self replaceSelectionWith: self nullText.
  	self selectFrom: startIndex to: startIndex-1.
  	UndoParagraph := upara.  UndoInterval := uinterval.
  	UndoMessage selector == #noUndoer ifTrue: [
  		(UndoSelection isText) ifTrue: [
  			usel := UndoSelection.
  			ind := startIndex. "UndoInterval startIndex"
  			usel replaceFrom: usel size + 1 to: usel size with:
  				(UndoParagraph text copyFrom: ind to: ind).
  			UndoParagraph text replaceFrom: ind to: ind with:
  self nullText]].
  	^false!