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#iOSDC2018 .BSLEPXOΛ ϦΞϧλΠϜʹ ղੳ͢Δ

#iOSDC2018

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

.BSLEPXOΛ ϦΞϧλΠϜʹ ղੳ͢Δ

.BSLEPXOΛ ϦΞϧλΠϜʹ ղੳ͢Δ ͖͔͚ͬ

Izumo Markdown Note Tool

J04 NBD04

͖͔͚ͬ wࣗ෼ʹͱͬͯྑ͍ΤσΟλ͕ͳ͔ͬͨ wϦονͷදݱํ๏ʹෆຬ w৭͚ͩมΘͬͯ͘ΕΕ͹͍͍ wಉظͯ͠ཉ͍͠

΍Γ͍ͨ͜ͱ

wΧϥʔϦϯά wฤूิࠤ

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

ฤूิࠤ wࣗಈΠϯσϯτ wλϒͰͷϦετҠಈ

ௐࠪ

IUUQTHJUIVCDPN TFBSDI RNBSLEPXO TXJGU

wϦονͳදݱʹม׵ͯ͠͠·͏ wશจΛಡΈࠐΉඞཁ͕͋Γ

࠷খݶͷൣғͰղੳ ॲཧΛߦ͍͍ͨ

w͍ͭʁ wԿΛʁ wͲͷΑ͏ʹͯ͠ʁ

͍ͭʁ

wςΩετ͕ೖྗ͞Εͨ wॳظԽ͞Εͨ wϑΥϯτ͕มߋ͞Εͨ

/45FYU4UPSBHF%FMFHBUF

// 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) { } }

ԿΛʁ

ม׵͢Δ΂͖ྖҬ

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) { } }

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

લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩ

લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩʂ

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

Ұؾʹෳ਺ߦ͕ ฤू͞Εͨ৔߹ Λߟྀ͢Δ

ͲͷΑ͏ʹͯ͠ʁ

ͲͷΑ͏ʹͯ͠ʁ wฤूͨ͠ൣғΛऔಘ͢Δ wߦຖʹ෼ׂ͢Δ wߦͷશͯͷൣғΛऔಘ͢Δ wม׵ wશମͷஔ׵

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

J04%$ J04%$

લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩʂ

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

func rangeOfCurrentLine(location: Int) -> NSRange? { let string = internalTextStorage.string
let endNSRange = NSRange(location: location, length: 0) let lineRange: Range<String.Index> 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..<upper, in: string) return lineNSRange }

let endNSRange = NSRange(location: location, length: 0) let lineRange: Range<String.Index> 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..<upper, in: string) return lineNSRange } վߦͰ෼ׂͨ͠ߦͷ࠷ॳͷҐஔΛऔಘ

let endNSRange = NSRange(location: location, length: 0) let lineRange: Range<String.Index> 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..<upper, in: string) return lineNSRange } վߦͰ෼ׂͨ͠ߦͷ࠷ॳͷҐஔΛऔಘ લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩʂ ໌೔΋J04%$ͩʂ ໌ޙ೔΋J04%$ͩ

let endNSRange = NSRange(location: location, length: 0) let lineRange: Range<String.Index> 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..<upper, in: string) return lineNSRange } ର৅ͷߦશମΛऔಘ վߦͰ෼ׂͨ͠ߦͷ࠷ॳͷҐஔΛऔಘ

let endNSRange = NSRange(location: location, length: 0) let lineRange: Range<String.Index> 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..<upper, in: string) return lineNSRange } ର৅ͷߦશମΛऔಘ վߦͰ෼ׂͨ͠ߦͷ࠷ॳͷҐஔΛऔಘ લ೔͸લ໷ࡇͩͬͨɻ ࠓ೔͸J04%$ͩʂ ໌೔΋J04%$ͩʂ ໌ޙ೔΋J04%$ͩ

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

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

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

࠷খݶͷൣғͰղ ੳ͢Δ͜ͱ͕େ੾

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

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

"཮".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

/44USJOH

w಺෦తʹ͸65'Ͱό ΠτྻΛ؅ཧ /44USJOH

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!"

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

4USJOH

wόΠτྻ͸Ӆณ 4USJOH

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

ೖྗิࠤ

wΦʔτΠϯσϯτ wλϒͰͷҠಈ

ΠϕϯτϋϯυϦϯά wλϒ wόοΫλϒ wվߦ

J04NBD04

w/45FYU7JFX w6*5FYU7JFX

/45FYU7JFX

ઐ༻ͷؔ਺ ͕༻ҙ͞Ε͍ͯΔ

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

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) } }

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

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

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

6*5FYU7JFX

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

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

insertTab insertBackTab

ςΩετૠೖ࣌

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

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

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

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 } }

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

·ͱΊ

·ͱΊ wղੳ͸ͳΔ΂͘࠷খݶͷൣғͰղੳ͢Δ

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

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

5IBOLT

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