As I was poking around in the system browser I came across code that
used an underscore as if it were an assignment statement. By that I mean
a _ where I would expect to see a :=. What does it do?

Several examples in the directory: method in FileList2.

directory: dir
	"Set the path of the volume to be displayed."

	self okToChange ifFalse: [^ self].

	self modelSleep.
	directory _ dir.
	self modelWakeUp.

	sortMode == nil ifTrue: [sortMode _ #date].
	volList _ Array with: '[]'.
	directory ifNotNil: [
		volList _ volList, directory pathParts.  "Nesting suggestion from RvL"
	].
	volList _ volList withIndexCollect: [:each :i | ( String new: i-1
withAll: $ ), each].
	self changed: #relabel.
	self changed: #volumeList.
	self pattern: pattern.
	directoryChangeBlock ifNotNil: [directoryChangeBlock value: directory].


-- 
Gary Dunn, Honolulu
osp at aloha.com
http://openslate.net/
http://e9erust.blogspot.com/
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