InputHandler // Simplify handleCandidate().
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ShikiSuen
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@ -9,6 +9,7 @@
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/// 該檔案乃按鍵調度模組當中「用來規定在選字窗出現時的按鍵行為」的部分。
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import CandidateWindow
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import CocoaExtension
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import Shared
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// MARK: - § 對選字狀態進行調度 (Handle Candidate State).
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@ -22,6 +23,7 @@ extension InputHandler {
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guard let delegate = delegate else { return false }
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var ctlCandidate = delegate.candidateController()
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let state = delegate.state
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guard !state.candidates.isEmpty else { return false }
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// MARK: 取消選字 (Cancel Candidate)
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@ -48,20 +50,18 @@ extension InputHandler {
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return true
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}
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// MARK: Enter
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// MARK: 批次集中處理某些常用功能鍵
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if input.isEnter {
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if let keyCodeType = KeyCode(rawValue: input.keyCode) {
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switch keyCodeType {
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case .kLineFeed, .kCarriageReturn:
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if state.type == .ofAssociates, !prefs.alsoConfirmAssociatedCandidatesByEnter {
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delegate.switchState(IMEState.ofAbortion())
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return true
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}
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delegate.candidateSelectionCalledByInputHandler(at: ctlCandidate.selectedCandidateIndex)
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return true
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}
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// MARK: Tab
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if input.isTab {
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case .kTab:
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let updated: Bool =
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prefs.specifyShiftTabKeyBehavior
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? (input.isShiftHold
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@ -70,15 +70,9 @@ extension InputHandler {
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: (input.isShiftHold
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? ctlCandidate.highlightPreviousCandidate()
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: ctlCandidate.highlightNextCandidate())
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if !updated {
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delegate.callError("9B691919")
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}
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_ = updated ? {}() : delegate.callError("9B691919")
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return true
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}
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// MARK: Space
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if input.isSpace {
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case .kSpace:
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let updated: Bool =
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prefs.specifyShiftSpaceKeyBehavior
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? (input.isShiftHold
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@ -87,129 +81,39 @@ extension InputHandler {
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: (input.isShiftHold
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? ctlCandidate.showNextLine()
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: ctlCandidate.highlightNextCandidate())
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if !updated {
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delegate.callError("A11C781F")
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_ = updated ? {}() : delegate.callError("A11C781F")
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return true
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case .kPageDown:
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_ = ctlCandidate.showNextPage() ? {}() : delegate.callError("9B691919")
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return true
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case .kPageUp:
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_ = ctlCandidate.showPreviousPage() ? {}() : delegate.callError("9569955D")
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return true
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case .kUpArrow, .kDownArrow, .kLeftArrow, .kRightArrow:
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handleArrowKey: switch (keyCodeType, ctlCandidate.currentLayout) {
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case (.kLeftArrow, .horizontal), (.kUpArrow, .vertical): // Previous Candidate
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_ = ctlCandidate.highlightPreviousCandidate() ? {}() : delegate.callError("5548FD14")
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case (.kRightArrow, .horizontal), (.kDownArrow, .vertical): // Next Candidate
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_ = ctlCandidate.highlightNextCandidate() ? {}() : delegate.callError("3CEFB82E")
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case (.kUpArrow, .horizontal), (.kLeftArrow, .vertical): // Previous Line
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_ = ctlCandidate.showPreviousLine() ? {}() : delegate.callError("827BBD79")
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case (.kDownArrow, .horizontal), (.kRightArrow, .vertical): // Next Line
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_ = ctlCandidate.showNextLine() ? {}() : delegate.callError("7A0C7FBD")
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default: break handleArrowKey
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}
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return true
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}
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// MARK: PgDn
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if input.isPageDown {
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let updated: Bool = ctlCandidate.showNextPage()
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if !updated {
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delegate.callError("9B691919")
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}
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case .kHome:
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_ =
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(ctlCandidate.selectedCandidateIndex == 0)
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? delegate.callError("9B6EDE8D") : (ctlCandidate.selectedCandidateIndex = 0)
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return true
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}
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// MARK: PgUp
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if input.isPageUp {
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let updated: Bool = ctlCandidate.showPreviousPage()
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if !updated {
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delegate.callError("9569955D")
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}
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return true
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}
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// MARK: Left Arrow
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if input.isLeft {
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switch ctlCandidate.currentLayout {
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case .horizontal:
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if !ctlCandidate.highlightPreviousCandidate() {
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delegate.callError("1145148D")
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}
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case .vertical:
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if !ctlCandidate.showPreviousLine() {
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delegate.callError("1919810D")
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}
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@unknown default:
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break
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}
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return true
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}
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// MARK: Right Arrow
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if input.isRight {
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switch ctlCandidate.currentLayout {
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case .horizontal:
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if !ctlCandidate.highlightNextCandidate() {
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delegate.callError("9B65138D")
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}
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case .vertical:
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if !ctlCandidate.showNextLine() {
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delegate.callError("9244908D")
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}
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@unknown default:
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break
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}
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return true
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}
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// MARK: Up Arrow
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if input.isUp {
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switch ctlCandidate.currentLayout {
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case .horizontal:
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if !ctlCandidate.showPreviousLine() {
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delegate.callError("9B614524")
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}
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case .vertical:
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if !ctlCandidate.highlightPreviousCandidate() {
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delegate.callError("ASD9908D")
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}
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@unknown default:
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break
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}
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return true
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}
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// MARK: Down Arrow
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if input.isDown {
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switch ctlCandidate.currentLayout {
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case .horizontal:
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if !ctlCandidate.showNextLine() {
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delegate.callError("92B990DD")
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break
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}
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case .vertical:
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if !ctlCandidate.highlightNextCandidate() {
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delegate.callError("6B99908D")
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}
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@unknown default:
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break
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}
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return true
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}
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// MARK: Home Key
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if input.isHome {
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if ctlCandidate.selectedCandidateIndex == 0 {
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delegate.callError("9B6EDE8D")
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} else {
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ctlCandidate.selectedCandidateIndex = 0
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}
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return true
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}
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// MARK: End Key
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if state.candidates.isEmpty {
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return false
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} else { // 這裡不用「count > 0」，因為該整數變數只要「!isEmpty」那就必定滿足這個條件。
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if input.isEnd {
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if ctlCandidate.selectedCandidateIndex == state.candidates.count - 1 {
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delegate.callError("9B69AAAD")
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} else {
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ctlCandidate.selectedCandidateIndex = state.candidates.count - 1
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}
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case .kEnd:
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let maxIndex = state.candidates.count - 1
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_ =
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(ctlCandidate.selectedCandidateIndex == maxIndex)
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? delegate.callError("9B69AAAD") : (ctlCandidate.selectedCandidateIndex = maxIndex)
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return true
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default: break
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}
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}
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