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"{ Package: 'stx:libwidg' }"
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EditTextViewCompletionSupport subclass:#WorkspaceCompletionSupport
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instanceVariableNames:''
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classVariableNames:''
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poolDictionaries:''
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category:'Interface-Smalltalk'
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!
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!WorkspaceCompletionSupport class methodsFor:'documentation'!
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documentation
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"
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A completion support using DWIM to complete code for Smalltalk (and JavaScript)
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[author:]
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Claus Gittinger
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[instance variables:]
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[class variables:]
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[see also:]
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DoWhatIMeanSupport
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"
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! !
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!WorkspaceCompletionSupport methodsFor:'private'!
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computeCompletions
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|suggestions implementations actions anyFound contextOrNil|
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"/ a hack
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(editView topView isKindOf: DebugView) ifTrue:[
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contextOrNil := editView topView selectedContext.
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].
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UserInformation ignoreIn:[
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anyFound := false.
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DoWhatIMeanSupport
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codeCompletionForLanguage: editView editedLanguage
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method:editView editedMethod
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orClass:editView editedClass
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context:contextOrNil
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codeView:editView
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into:[:listOfSuggestions :listOfActions :titleWhenAsking |
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"/ (listOfSuggestions contains:[:l | l isEmptyOrNil]) ifTrue:[self halt].
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suggestions := listOfSuggestions collect:[:entry | entry isArray ifTrue:[entry first] ifFalse:[entry]].
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implementations := listOfSuggestions collect:[:entry | entry isArray ifTrue:[entry second] ifFalse:[nil]].
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actions := listOfActions.
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anyFound := true.
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nil "/ must return nil to avoid DWIM to do it itself (for now)
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]
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].
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"/ anyFound ifFalse:[self halt].
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"/ Transcript show:'suggestions: '; showCR:suggestions.
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"/ Transcript show:'actions: '; showCR:actions.
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editView sensor
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pushUserEvent:#'suggestionsArrived:implementations:actions:autoSelect:'
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for:self
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withArguments:{suggestions . implementations . actions . autoSelect }
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"Created: / 26-09-2013 / 17:44:31 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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suggestionsArrived:suggestionsArg implementations:implementationsArg actions:actionsArg autoSelect:autoSelectArg
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"the background process has generated some suggestions"
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|v suggestions implementations actions suggestionOffset keyAndSnippet indexOfSnippet|
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(editView sensor hasKeyPressEventFor:nil) ifTrue:[
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self closeCompletionView.
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^ self
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].
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implementations := implementationsArg.
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actions := actionsArg.
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suggestions := suggestionsArg ? #().
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suggestions size > 20 ifTrue:[
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suggestions := suggestions copyTo:20.
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implementations := implementations copyTo:20.
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actions isArray ifTrue:[ actions := actions copyTo:20 ].
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].
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"/ append snipplet, if any (can be easily reached via CRSR-up)
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suggestionOffset := 0.
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indexOfSnippet := nil.
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(keyAndSnippet := editView findAbbreviationKeyBeforeCursor) notNil ifTrue:[
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|abbrev sniplet i line|
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abbrev := keyAndSnippet first.
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sniplet := keyAndSnippet second.
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"/ if the abbreviation is simply at the end of a longer word, ignore the abbrev.
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line := editView lineStringBeforeCursor.
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i := line findLast:[:ch | ch isLetterOrDigit not].
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(i < (line size - abbrev size - 1)) ifFalse:[
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sniplet := sniplet copyWithout:$!!.
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"/ true, false and self are often found in both lists
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(suggestions includes:sniplet) ifFalse:[
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suggestions isEmpty ifFalse:[ suggestions := suggestions copyWith: '-' ].
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suggestions := suggestions copyWith: ( '%1 %2'
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bindWith:(sniplet asStringCollection first "contractTo:25")
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with: ( ('("',abbrev,'" snippet)') colorizeAllWith:Color grey)).
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indexOfSnippet := suggestions size.
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"/ change below, when reversing the order in above code
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"/ suggestionOffset := 2.
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]
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]
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].
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suggestions isEmptyOrNil ifTrue:[
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self closeCompletionView.
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^ self
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].
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(v := completionView) isNil ifTrue: [
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^ self
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].
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v sensor
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pushUserEvent:#value
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for:[
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|top idx preselectIdx performCompletion|
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(v == completionView) ifTrue: [
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top := v topView.
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LastCompletions notNil ifTrue:[
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"/ one of the last completions in list?
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idx := LastCompletions findFirst:[:compl | suggestions includes:compl].
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idx ~~ 0 ifTrue:[
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preselectIdx := suggestions indexOf:(LastCompletions at:idx).
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].
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].
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autoSelectArg ifTrue:[
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(preselectIdx isNil and:[suggestions size == 1]) ifTrue:[
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preselectIdx := 1.
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].
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].
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preselectIdx notNil ifTrue:[
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|pref|
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pref := suggestions at:preselectIdx.
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"/ for now, do not move to front (action needs the index)
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suggestions at:preselectIdx put:(pref allBold).
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"/ suggestions removeAtIndex:preselectIdx.
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"/ suggestions addFirst:(pref allBold).
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"/ implementations notNil ifTrue:[
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"/ implementations removeAtIndex:preselectIdx.
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"/ implementations addFirst:implementations.
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"/ ]
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].
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performCompletion :=
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[:selectedListIndex |
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|indexInSuggestions|
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self closeCompletionView.
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indexInSuggestions := selectedListIndex - suggestionOffset.
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(selectedListIndex == indexOfSnippet) ifTrue:[
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"/ replace the sniplet
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editView sensor pushUserEvent:#expandAbbreviation for:editView
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] ifFalse:[
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LastCompletions isNil ifTrue:[
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LastCompletions := OrderedCollection new.
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].
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LastCompletions add:(suggestions at:indexInSuggestions).
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LastCompletions size > 200 ifTrue:[
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LastCompletions removeLast
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].
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actions notNil ifTrue:[
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actions isBlock ifTrue:[
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actions value:indexInSuggestions
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] ifFalse:[
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(actions at:indexInSuggestions) value
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].
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].
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].
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"/ disabled - user has made his choice; so don't show more suggestions
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"/ editView sensor pushUserEvent:#updateCompletionList for:self
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].
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((suggestions size == 1) and:[preselectIdx == 1]) ifTrue:[
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"/ do it, right here and now
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performCompletion value:preselectIdx.
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] ifFalse:[
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top open.
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v list:suggestions
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expandTabs:false scanForNonStrings:false
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includesNonStrings:false redraw:true.
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implementations notNil ifTrue:[
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implementations keysAndValuesDo:[:idx :impls |
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|implsMenu|
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impls notEmptyOrNil ifTrue:[
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implsMenu := Menu new.
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impls do:[:each |
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implsMenu addItem:(MenuItem new label:each name).
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].
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v subMenuAt:idx put:implsMenu
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].
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].
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].
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v enable:true.
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preselectIdx notNil ifTrue:[
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"/ very disturbing!!
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v selection:preselectIdx.
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].
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v extent:completionView preferredExtentForContents.
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v action:performCompletion.
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(top ~~ v) ifTrue:[
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top resizeToFit.
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top bottom > v device usableHeight ifTrue:[
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top origin:((top origin x) @ (v device usableHeight - v height)).
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].
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top raise.
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]
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]
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]
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]
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! !
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!WorkspaceCompletionSupport class methodsFor:'documentation'!
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version
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^ '$Header: /cvs/stx/stx/libwidg/WorkspaceCompletionSupport.st,v 1.1 2013-09-26 17:07:44 vrany Exp $'
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!
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version_CVS
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^ '$Header: /cvs/stx/stx/libwidg/WorkspaceCompletionSupport.st,v 1.1 2013-09-26 17:07:44 vrany Exp $'
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! !
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