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1 change: 1 addition & 0 deletions
1
...tor/Sources/Collection+BinarySearch.swift → .../LineEnding/Collection+BinarySearch.swift
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58 changes: 58 additions & 0 deletions
58
Packages/EditorCore/Sources/LineEnding/Collection+ValueRange.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| // | ||
| // Collection+ValueRange.swift | ||
| // LineEnding | ||
| // | ||
| // CotEditor | ||
| // https://coteditor.com | ||
| // | ||
| // Created by 1024jp on 2024-07-13. | ||
| // | ||
| // --------------------------------------------------------------------------- | ||
| // | ||
| // © 2022-2024 1024jp | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
|
||
| import Foundation | ||
| import ValueRange | ||
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| public extension Array { | ||
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| /// Replace the elements in the specified range with the given items. | ||
| /// | ||
| /// This API assumes the elements are sorted by range location. | ||
| /// | ||
| /// - Parameters: | ||
| /// - items: The items to replace with. | ||
| /// - editedRange: The edited range. | ||
| /// - delta: The change in length. | ||
| mutating func replace<Value>(items: [Element], in editedRange: NSRange, changeInLength delta: Int) where Element == ValueRange<Value> { | ||
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| guard let lowerEditedIndex = self.binarySearchedFirstIndex(where: { $0.lowerBound >= editedRange.lowerBound }) else { | ||
| self += items | ||
| return | ||
| } | ||
|
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| if let upperEditedIndex = self[lowerEditedIndex...].firstIndex(where: { $0.lowerBound >= (editedRange.upperBound - delta) }) { | ||
| for index in upperEditedIndex..<self.endIndex { | ||
| self[index].shift(by: delta) | ||
| } | ||
| self.removeSubrange(lowerEditedIndex..<upperEditedIndex) | ||
| } else { | ||
| self.removeSubrange(lowerEditedIndex...) | ||
| } | ||
|
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| self.insert(contentsOf: items, at: lowerEditedIndex) | ||
| } | ||
| } |
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56 changes: 56 additions & 0 deletions
56
Packages/EditorCore/Sources/LineEnding/LineRangeCalculating.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| // | ||
| // LineRangeCalculating.swift | ||
| // LineEnding | ||
| // | ||
| // CotEditor | ||
| // https://coteditor.com | ||
| // | ||
| // Created by 1024jp on 2024-07-13. | ||
| // | ||
| // --------------------------------------------------------------------------- | ||
| // | ||
| // © 2024 1024jp | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
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| import Foundation | ||
| import ValueRange | ||
|
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| public protocol LineRangeCalculating { | ||
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| /// The text contents. | ||
| var string: NSString { get } | ||
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| /// Line Endings sorted by location. | ||
| var lineEndings: [ValueRange<LineEnding>] { get } | ||
| } | ||
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| public extension LineRangeCalculating { | ||
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| /// Returns the 1-based line number at the given character index. | ||
| /// | ||
| /// - Parameter characterIndex: The character index. | ||
| /// - Returns: The 1-based line number. | ||
| func lineNumber(at characterIndex: Int) -> Int { | ||
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| if let index = self.lineEndings.binarySearchedFirstIndex(where: { $0.upperBound > characterIndex }) { | ||
| index + 1 | ||
| } else if let last = self.lineEndings.last, last.upperBound <= characterIndex { | ||
| self.lineEndings.endIndex + 1 | ||
| } else { | ||
| 1 | ||
| } | ||
| } | ||
| } |
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