{"id":28420,"date":"2022-12-30T20:54:58","date_gmt":"2022-12-30T15:24:58","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-multiple-search-in-string-swift-4\/"},"modified":"2022-12-30T20:54:58","modified_gmt":"2022-12-30T15:24:58","slug":"solved-multiple-search-in-string-swift-4","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-multiple-search-in-string-swift-4\/","title":{"rendered":"[Solved] Multiple search in string – swift 4+"},"content":{"rendered":"

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You may find a database command to get this kind of search. In swift, it’s easy to construct such a predicate like the following if I understand your requirement right.<\/p>\n

  let multipleSearchString = \"my stg l la ma\"\n\n  let texts = [\"mystringlladm1a\", \"mystr2ingllama\", \"mystri2ngllama\", \"mys3ringllama\"]\n\n  let key =  multipleSearchString.compactMap{ $0 == \" \" ? nil : String($0) + \"*\"}.joined()\n\n  let predicate =  NSPredicate(format: \"SELF like[c] %@\", argumentArray: [key])\n\n  print (texts.filter{predicate.evaluate(with: $0)})\n \/\/[\"mystringlladm1a\", \"mystr2ingllama\", \"mystri2ngllama\"]\n<\/code><\/pre>\n
In your added case, a computed property can be added to achieve your goal:<\/p>\n
  \/\/  extension Price{\n \/\/   var lowerCasedMultipleSearchString: String{\n \/\/       if let string = self.MultipleSearchString?.lowercased(){\n  \/\/          return string\n \/\/       }\n \/\/      return \"\"\n \/\/  }\n \/\/   }\n\n   \/\/  func searchTextInPrices(prices: Results<Price>, text: String) ->     \/\/Results<Price> {\n   \/\/ let key =  text.compactMap{ $0 == \" \" ? nil : String($0) + \"*\"}.joined()\n   \/\/  let predicate =  NSPredicate(format: \"SELF like[c] %@\", argumentArray: [key])\n   \/\/  return prices.filter{predicate.evaluate(with: $0.lowerCasedMultipleSearchString)}\n   \/\/  }\n\n\nfunc searchFor(text: String) {\nif text == \"\" || text.count == 0 {\n    loadPricesFromDb()\n}\nelse {\n\n    let realm = try! Realm()\n    self.items = []\n    let prices = realm.objects(Price.self)\n\n  \/\/The changed codes here. \n\n   let key =  text.compactMap{ $0 == \" \" ? nil : String($0) + \"*\"}.joined()\n   let predicate =  NSPredicate(format: \"SELF like[c] %@\", argumentArray: [key])\n    let results = prices.filter{predicate.evaluate(with: ($0.MultipleSearchString?.lowercased())!)}\n\n\/\/second edition:\n\n var result = prices\n var length : Int = 0\n repeat{\nlet key =  text[...(text.index(text.startIndex, offsetBy: length))].compactMap{ $0 == \" \" ? nil : String($0) + \"*\"}.joined()\nlet predicate =  NSPredicate(format: \"SELF like[c] %@\", argumentArray: [key])\nresults =  prices.filter{predicate.evaluate(with: ($0.MultipleSearchString?.lowercased())!)}\nlength += 1} while(length < text.count)\n\n   \/\/Third edition:\n\n  let results =  prices.filter{ text.reduce((($0.MultipleSearchString?.lowercased())!, true)){\n    if !$0.1 {return (\"\",false)}\n    else if let index = $0.0.index(of: $1) {return  (String($0.0[index...]),true)}\n    return (\"\",false)\n    }.1}\n\n\n\n self.items.append(contentsOf: results)\n    self.tableView.reloadData()\n}\n}\n<\/code><\/pre>\n<\/p><\/div>\n
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solved Multiple search in string – swift 4+ <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] You may find a database command to get this kind of search. In swift, it’s easy to construct such a predicate like the following if I understand your requirement right. let multipleSearchString = “my stg l la ma” let texts = [“mystringlladm1a”, “mystr2ingllama”, “mystri2ngllama”, “mys3ringllama”] let key = multipleSearchString.compactMap{ $0 == ” ” ? … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[471,720,362,522],"class_list":["post-28420","post","type-post","status-publish","format-standard","hentry","category-solved","tag-ios","tag-search","tag-string","tag-swift"],"yoast_head":"\n[Solved] Multiple search in string - swift 4+ - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-multiple-search-in-string-swift-4\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Multiple search in string - swift 4+ - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You may find a database command to get this kind of search. In swift, it’s easy to construct such a predicate like the following if I understand your requirement right. let multipleSearchString = "my stg l la ma" let texts = ["mystringlladm1a", "mystr2ingllama", "mystri2ngllama", "mys3ringllama"] let key = multipleSearchString.compactMap{ $0 == " " ? ... 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In swift, it’s easy to construct such a predicate like the following if I understand your requirement right. let multipleSearchString = \"my stg l la ma\" let texts = [\"mystringlladm1a\", \"mystr2ingllama\", \"mystri2ngllama\", \"mys3ringllama\"] let key = multipleSearchString.compactMap{ $0 == \" \" ? ... 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