Created
April 1, 2018 15:52
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Split and replace strings in swift
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| //: Playground - noun: a place where people can play | |
| import Cocoa | |
| extension String { | |
| // | |
| func splitBetween(_ startText:String, and endText:String) -> [String]? { | |
| guard let startIndex = self.range(of: startText)?.upperBound else { | |
| return nil | |
| } | |
| guard let endIndex = self.range(of: endText)?.lowerBound else { | |
| return nil | |
| } | |
| let text = String(self[startIndex..<endIndex]) | |
| return text.split(separator: ",").map { String($0) } | |
| } | |
| func replacingBetween(_ startText:String, and endText:String, with:String) -> String? { | |
| guard let startIndex = self.range(of: startText)?.upperBound else { | |
| return nil | |
| } | |
| guard let endIndex = self.range(of: endText)?.lowerBound else { | |
| return nil | |
| } | |
| var newText = String(self) | |
| newText.replaceSubrange(startIndex..<endIndex, with: with) | |
| return newText | |
| } | |
| } | |
| let text="<html><head><magic>4,8,15,16,23,42</magic></head><body>blah, blah, blah</body></html>" | |
| let numbers = text.splitBetween("<magic>", and: "</magic>") | |
| let elements = text.replacingBetween("<magic>", and: "</magic>", with: "fire,air,water,earth") | |
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