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#iOSDC2018 .BSLEPXOΛ ϦΞϧλΠϜʹ ղੳ͢Δ

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#iOSDC2018

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!OBLBKJKBQBO 4PGUXBSF&OHJOFFS $".1'*3&J04%$4UB⒎/,+*OUFSOFU J04"OESPJENBD04

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.BSLEPXOΛ ϦΞϧλΠϜʹ ղੳ͢Δ

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.BSLEPXOΛ ϦΞϧλΠϜʹ ղੳ͢Δ ͖͔͚ͬ

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Izumo Markdown Note Tool

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J04 NBD04

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͖͔͚ͬ wࣗ෼ʹͱͬͯྑ͍ΤσΟλ͕ͳ͔ͬͨ wϦονͷදݱํ๏ʹෆຬ w৭͚ͩมΘͬͯ͘ΕΕ͹͍͍ wಉظͯ͠ཉ͍͠

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΍Γ͍ͨ͜ͱ

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wΧϥʔϦϯά wฤूิࠤ

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ΧϥʔϦϯά ߦ໨͸λΠτϧߦɺݟग़͠ɺڧௐɺΠϯ ϥΠϯදࣔɺϦετɺ50%0Ϧετɺը૾ ଧͪফ͠ɺςʔϒϧɺਫฏઢɺҾ༻ɺίʔ υϒϩοΫɺҾ༻

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ฤूิࠤ wࣗಈΠϯσϯτ wλϒͰͷϦετҠಈ

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ௐࠪ

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IUUQTHJUIVCDPN TFBSDI RNBSLEPXOTXJGU

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wϦονͳදݱʹม׵ͯ͠͠·͏ wશจΛಡΈࠐΉඞཁ͕͋Γ

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࠷খݶͷൣғͰղੳ ॲཧΛߦ͍͍ͨ

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w͍ͭʁ wԿΛʁ wͲͷΑ͏ʹͯ͠ʁ

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͍ͭʁ

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wςΩετ͕ೖྗ͞Εͨ wॳظԽ͞Εͨ wϑΥϯτ͕มߋ͞Εͨ

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wςΩετ͕ೖྗ͞Εͨ wॳظԽ͞Εͨ wϑΥϯτ͕มߋ͞Εͨ

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/45FYU4UPSBHF%FMFHBUF

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// MARK: - NSTextStorageDelegate extension TextViewController: NSTextStorageDelegate { func textStorage(_ textStorage: NSTextStorage, willProcessEditing editedMask: NSTextStorageEditActions, range editedRange: NSRange, changeInLength delta: Int) { self.editedRange = editedRange } func textStorage(_ textStorage: NSTextStorage, didProcessEditing editedMask: NSTextStorageEditActions, range editedRange: NSRange, changeInLength delta: Int) { } }

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ԿΛʁ

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ม׵͢Δ΂͖ྖҬ

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// MARK: - NSTextStorageDelegate extension TextViewController: NSTextStorageDelegate { func textStorage(_ textStorage: NSTextStorage, willProcessEditing editedMask: NSTextStorageEditActions, range editedRange: NSRange, changeInLength delta: Int) { self.editedRange = editedRange } func textStorage(_ textStorage: NSTextStorage, didProcessEditing editedMask: NSTextStorageEditActions, range editedRange: NSRange, changeInLength delta: Int) { } }

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// MARK: - NSTextStorageDelegate extension TextViewController: NSTextStorageDelegate { func textStorage(_ textStorage: NSTextStorage, willProcessEditing editedMask: NSTextStorageEditActions, range editedRange: NSRange, changeInLength delta: Int) { self.editedRange = editedRange } func textStorage(_ textStorage: NSTextStorage, didProcessEditing editedMask: NSTextStorageEditActions, range editedRange: NSRange, changeInLength delta: Int) { } } ⚠ฤूͨ͠ྖҬ

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લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩ

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લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩʂ

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લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩ

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લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩʂ ໌೔΋J04%$ͩʂ ໌ޙ೔΋J04%$ͩ

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Ұؾʹෳ਺ߦ͕ ฤू͞Εͨ৔߹ Λߟྀ͢Δ

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ͲͷΑ͏ʹͯ͠ʁ

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ͲͷΑ͏ʹͯ͠ʁ wฤूͨ͠ൣғΛऔಘ͢Δ wߦຖʹ෼ׂ͢Δ wߦͷશͯͷൣғΛऔಘ͢Δ wม׵ wશମͷஔ׵

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ͲͷΑ͏ʹͯ͠ʁ wฤूͨ͠ൣғΛऔಘ͢Δ wߦຖʹ෼ׂ͢Δ wߦͷશͯͷൣғΛऔಘ͢Δ wม׵ wશମͷஔ׵ ෳ਺ߦͷ৔߹͕͋Δ

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ͲͷΑ͏ʹͯ͠ʁ wฤूͨ͠ൣғΛऔಘ͢Δ wߦຖʹ෼ׂ͢Δ wߦͷશͯͷൣғΛऔಘ͢Δ wม׵ wશମͷஔ׵

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J04%$ J04%$

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લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩ

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લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩʂ

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લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩʂ

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લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩʂ ໌೔΋J04%$ͩʂ ໌ޙ೔΋J04%$ͩ

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લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩʂ ໌೔΋J04%$ͩʂ ໌ޙ೔΋J04%$ͩ

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func rangeOfCurrentLine(location: Int) -> NSRange? { let string = internalTextStorage.string let endNSRange = NSRange(location: location, length: 0) let lineRange: Range if let endRange = endNSRange.range(string: string) { lineRange = string.lineRange(for: endRange) } else { return nil } let lower = String.UTF16View.Index(lineRange.lowerBound, within: string.utf16)! let upper = String.UTF16View.Index(lineRange.upperBound, within: string.utf16)! let lineNSRange = NSRange(lower..

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func rangeOfCurrentLine(location: Int) -> NSRange? { let string = internalTextStorage.string let endNSRange = NSRange(location: location, length: 0) let lineRange: Range if let endRange = endNSRange.range(string: string) { lineRange = string.lineRange(for: endRange) } else { return nil } let lower = String.UTF16View.Index(lineRange.lowerBound, within: string.utf16)! let upper = String.UTF16View.Index(lineRange.upperBound, within: string.utf16)! let lineNSRange = NSRange(lower..

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func rangeOfCurrentLine(location: Int) -> NSRange? { let string = internalTextStorage.string let endNSRange = NSRange(location: location, length: 0) let lineRange: Range if let endRange = endNSRange.range(string: string) { lineRange = string.lineRange(for: endRange) } else { return nil } let lower = String.UTF16View.Index(lineRange.lowerBound, within: string.utf16)! let upper = String.UTF16View.Index(lineRange.upperBound, within: string.utf16)! let lineNSRange = NSRange(lower..

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func rangeOfCurrentLine(location: Int) -> NSRange? { let string = internalTextStorage.string let endNSRange = NSRange(location: location, length: 0) let lineRange: Range if let endRange = endNSRange.range(string: string) { lineRange = string.lineRange(for: endRange) } else { return nil } let lower = String.UTF16View.Index(lineRange.lowerBound, within: string.utf16)! let upper = String.UTF16View.Index(lineRange.upperBound, within: string.utf16)! let lineNSRange = NSRange(lower..

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func rangeOfCurrentLine(location: Int) -> NSRange? { let string = internalTextStorage.string let endNSRange = NSRange(location: location, length: 0) let lineRange: Range if let endRange = endNSRange.range(string: string) { lineRange = string.lineRange(for: endRange) } else { return nil } let lower = String.UTF16View.Index(lineRange.lowerBound, within: string.utf16)! let upper = String.UTF16View.Index(lineRange.upperBound, within: string.utf16)! let lineNSRange = NSRange(lower..

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func rangeOfCurrentLine(location: Int) -> NSRange? { let string = internalTextStorage.string let endNSRange = NSRange(location: location, length: 0) let lineRange: Range if let endRange = endNSRange.range(string: string) { lineRange = string.lineRange(for: endRange) } else { return nil } let lower = String.UTF16View.Index(lineRange.lowerBound, within: string.utf16)! let upper = String.UTF16View.Index(lineRange.upperBound, within: string.utf16)! let lineNSRange = NSRange(lower..

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lineRange(for:) Returns the range of characters representing the line or lines containing a given range. func lineRange(for range: NSRange) -> NSRange ศ ར

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ͲͷΑ͏ʹͯ͠ʁ wฤूͨ͠ൣғΛऔಘ͢Δ wߦຖʹ෼ׂ͢Δ wߦͷશͯͷൣғΛऔಘ͢Δ wม׵ wશମͷஔ׵

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ͲͷΑ͏ʹͯ͠ʁ wฤूͨ͠ൣғΛऔಘ͢Δ wߦຖʹ෼ׂ͢Δ wߦͷશͯͷൣғΛऔಘ͢Δ wม׵ wશମͷஔ׵ ίʔυϒϩοΫ͸શ ମΛݕࡧඞཁ͕͋Δ

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ͲͷΑ͏ʹͯ͠ʁ wฤूͨ͠ൣғΛऔಘ͢Δ wߦຖʹ෼ׂ͢Δ wߦͷશͯͷൣғΛऔಘ͢Δ wม׵ wશମͷஔ׵ ޙ͸֘౰͢ΔจࣈྻΛந ग़ͯ͠ద੾ͳ৭ʹม׵͢ Δ͚ͩɻ

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࠷খݶͷൣғͰղ ੳ͢Δ͜ͱ͕େ੾

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#$%&

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ֆจࣈ w/44USJOHɺ/43BOHFͷར༻࣌ w୯७ʹจࣈྻΛΧ΢ϯτͯ͠͸❌ w65'Λҙࣝͨ͠จࣈྻૢ࡞Λ͢Δ

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6' Y%% Y%& 6OJDPEF 65'

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"཮".count // 1 "཮".unicodeScalars.count // 1 "཮".utf16.count // 1 "཮".utf8.count // 3 "".count // 1 "".unicodeScalars.count // 1 "".utf16.count // 2 "".utf8.count // 4 ")".count // 1 ")".unicodeScalars.count // 2 ")".utf16.count // 4 ")".utf8.count // 8

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#$%&

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/44USJOH

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w಺෦తʹ͸65'Ͱό ΠτྻΛ؅ཧ /44USJOH

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let snowy = "❄ Let it snow! ☃" let nsrange = NSRange(location: 3, length: 12) if let range = Range(nsrange, in: snowy) { print(snowy[range]) } // Prints "Let it snow!"

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NSRange(location: 0, length: line.utf16.count)

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4USJOH

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wόΠτྻ͸Ӆณ 4USJOH

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let snowy = "❄ Let it snow! ☃" print(snowy.prefix(5)) // Prints "❄ Let" print(snowy.suffix(1)) // Prints "☃"

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ೖྗิࠤ

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wΦʔτΠϯσϯτ wλϒͰͷҠಈ

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ΠϕϯτϋϯυϦϯά wλϒ wόοΫλϒ wվߦ

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J04NBD04

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w/45FYU7JFX w6*5FYU7JFX

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/45FYU7JFX

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ઐ༻ͷؔ਺ ͕༻ҙ͞Ε͍ͯΔ

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class NSTextView { func insertTab(_ sender: Any?) func insertBacktab(_ sender: Any?) func insertNewline(_ sender: Any?) } public protocol NSTextInputClient { public func insertText(_ string: Any, replacementRange: NSRange) } طʹظ଴͞Εͨؔ਺͕༻ҙ͞Ε͍ͯΔ ΧελϚΠζͨ͠จࣈྻΛૠೖ͢Δ

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class TextView: NS { override func insertTab(_ sender: Any?) { var indent = "" let (spaces, lineRange) = getPrefixStringIfLineHasListTag(regex: TextRegex.insertTab) if useIndentWithSpaceKey { indent = String(repeating: " ", count: indentWidth) if !spaces.isEmpty { super.insertText(indent, replacementRange: NSRange(location: lineRange.location, length: 0)) return } super.insertText(indent, replacementRange: self.rangeForUserTextChange) return } indent = "\t" if !spaces.isEmpty { super.insertText(indent, replacementRange: NSRange(location: lineRange.location, length: 0)) return } super.insertTab(sender) } }

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class TextView: NS { override func insertTab(_ sender: Any?) { var indent = "" let (spaces, lineRange) = getPrefixStringIfLineHasListTag(regex: TextRegex.insertTab) if useIndentWithSpaceKey { indent = String(repeating: " ", count: indentWidth) if !spaces.isEmpty { super.insertText(indent, replacementRange: NSRange(location: lineRange.location, length: 0)) return } super.insertText(indent, replacementRange: self.rangeForUserTextChange) return } indent = "\t" if !spaces.isEmpty { super.insertText(indent, replacementRange: NSRange(location: lineRange.location, length: 0)) return } super.insertTab(sender) } } Πϯσϯτର৅ͱͳ Δઌ಄෦෼Λऔಘ

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લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩ લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩ

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class TextView: NS { override func insertTab(_ sender: Any?) { var indent = "" let (spaces, lineRange) = getPrefixStringIfLineHasListTag(regex: TextRegex.insertTab) if useIndentWithSpaceKey { indent = String(repeating: " ", count: indentWidth) if !spaces.isEmpty { super.insertText(indent, replacementRange: NSRange(location: lineRange.location, length: 0)) return } super.insertText(indent, replacementRange: self.rangeForUserTextChange) return } indent = "\t" if !spaces.isEmpty { super.insertText(indent, replacementRange: NSRange(location: lineRange.location, length: 0)) return } super.insertTab(sender) } } ਌ॲཧʹ೚ͤΔ

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6*5FYU7JFX

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class NSTextView { func insertTab(_ sender: Any?) func insertBacktab(_ sender: Any?) func insertNewline(_ sender: Any?) } public protocol NSTextInputClient { public func insertText(_ string: Any, replacementRange: NSRange) } ༻ҙ͞Ε͍ͯͳ͍ɻɻɻ

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class NSTextView { func insertTab(_ sender: Any?) func insertBacktab(_ sender: Any?) func insertNewline(_ sender: Any?) } public protocol NSTextInputClient { public func insertText(_ string: Any, replacementRange: NSRange) } • ΩʔϘʔυʹλϒ͸ແ͍ • λϒϘλϯͰಉ౳ͷػೳΛ࣮૷

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insertTab insertBackTab

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ςΩετૠೖ࣌

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6*5FYU7JFXͷࢠΫϥε let stringRange = lineRange.range(string: text)! text.insert(contentsOf: indent, at: stringRange.lowerBound)

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6*5FYU7JFXͷࢠΫϥε let stringRange = lineRange.range(string: text)! text.insert(contentsOf: indent, at: stringRange.lowerBound)

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UITextViewͷࢠΫϥε let stringRange = lineRange.range(string: text)! text.insert(contentsOf: indent, at: stringRange.lowerBound) wFEJUFE3BOHFͰฤूൣғ͕શͯʹͳͬ ͯ͠·͏ wUFYU%JE$IBOHF͸ίʔϧ͞Εͳ͍ wظ଴͞ΕͨҐஔʹΧʔιϧ͕Ҡಈ͞Ε ͳ͍

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public protocol UIKeyInput : UITextInputTraits { public var hasText: Bool { get } public func insertText(_ text: String) public func deleteBackward() }

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func insertTab(rangeForTextChange: NSRange) { var indent = "" let (spaces, lineRange) = getPrefixStringIfLineHasList(regex: TextInputRegex.insertTab, rangeForTextChange: rangeForTextChange) if useIndentWithSpaceKey { indent = String(repeating: " ", count: indentWidth) if !spaces.isEmpty { selectedRange = NSRange(location: lineRange.location, length: 0) insertText(indent) selectedRange = NSRange(location: rangeForTextChange.location + indentWidth, length: 0) return } super.insertText(indent) return } indent = "\t" if !spaces.isEmpty { selectedRange = NSRange(location: lineRange.location, length: 0) insertText(indent) selectedRange = NSRange(location: rangeForTextChange.location + 1, length: 0) return } }

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func insertTab(rangeForTextChange: NSRange) { var indent = "" let (spaces, lineRange) = getPrefixStringIfLineHasList(regex: TextInputRegex.insertTab, rangeForTextChange: rangeForTextChange) if useIndentWithSpaceKey { indent = String(repeating: " ", count: indentWidth) if !spaces.isEmpty { selectedRange = NSRange(location: lineRange.location, length: 0) insertText(indent) selectedRange = NSRange(location: rangeForTextChange.location + indentWidth, length: 0) return } super.insertText(indent) return } indent = "\t" if !spaces.isEmpty { selectedRange = NSRange(location: lineRange.location, length: 0) insertText(indent) selectedRange = NSRange(location: rangeForTextChange.location + 1, length: 0) return } } Χʔιϧ͕ظ଴ͨ͠Ґஔʹ͍ͳ͍ͷͰઌ಄ʹҠಈɺૠೖޙɺ ૠೖޙͷҐஔʹҠಈ͢Δඞཁ͕͋Δɻ

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·ͱΊ

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·ͱΊ wղੳ͸ͳΔ΂͘࠷খݶͷൣғͰղੳ͢Δ

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·ͱΊ wղੳ͸ͳΔ΂͘࠷খݶͷൣғͰߦ͏ wจࣈίʔυΛҙࣝͨ͠จࣈྻૢ࡞ w⚠/44USJOH /43BOHF

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·ͱΊ wղੳ͸ͳΔ΂͘࠷খݶͷൣғͰߦ͏ wจࣈίʔυΛҙࣝͨ͠จࣈྻૢ࡞ w⚠/44USJOH /43BOHF wೖྗิࠤ࣌ͷJ04Ͱͷઃܭ wΧελϚΠζ͕ඞਢ

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5IBOLT

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&OKPZ