How to process words one by one?

Question

how can I pick words from a paragraph and process one by one. I want to switch places of letters except first and last letter. How can I? Thanks

var fullInputArray = []
func convertToArray(){
    let fullInput = inputBox.text
    fullInputArray = fullInput.componentsSeparatedByString(" ")
    println("\(fullInputArray)") //prints [hello, world, this, is, an, app]
}


func processWords(){
    var processedArray: [String] = //something functional code like fullInputArray.mix
    println("\(processedArray)") //prints [hlleo, wlord, tihs, is, an, app]
}

Your question lacks a good title. Are looking for a way to exchange characters in a NSString object? Are looking for a way to split a NSString object by spaces? — Christoph, Jun 27 '15 at 17:54
Actually yes. I want to process words which seperated by space. ??? @ChristophH. — Encul, Jun 27 '15 at 18:00
I've converted string to array acording to @ZaidPathan 's answer. You can see above. — Encul, Jun 27 '15 at 18:33
possible duplicate of [Swift: Split a String into an array](http://stackoverflow.com/questions/25678373/swift-split-a-string-into-an-array) — milo526, Jun 27 '15 at 18:39
It's not a duplicate of Swift: Split a String into an array. I asked how to process words. :) @milo526 — Encul, Jun 27 '15 at 18:43
possible duplicate of [How can I put each word of a string into an array in Swift?](http://stackoverflow.com/questions/27870385/how-can-i-put-each-word-of-a-string-into-an-array-in-swift) — Leo Dabus, Jun 27 '15 at 18:49
It's not a duplicate man. I'm asking for change places of letters in a word. @LeoDabus — Encul, Jun 27 '15 at 18:56

score 1 · Answer 1 · edited May 23 '17 at 11:51

1

You can split paragraph(String) into Array ,then access that Array indexes.

Try this answer to convert your String to Array :https://stackoverflow.com/a/26270721/3411787

edited May 23 '17 at 11:51

Community

1
1

answered Jun 27 '15 at 18:05

Mohammad Zaid Pathan

15,352
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score 1 · Accepted Answer · edited May 23 '17 at 12:21

1

import UIKit

extension Array {
    var shuffled: [T] {
        var result = self
        for index in 0..<result.count-1 {
            swap(&result[index], &result[Int(arc4random_uniform(UInt32(result.count-index)))+index])
        }
        return result
    }
}

extension String {
    var wordList:[String] {
        return "".join(componentsSeparatedByCharactersInSet(NSCharacterSet.punctuationCharacterSet())).componentsSeparatedByString(" ")
    }
    var first: String {
        return String(self[startIndex])
    }
    var last: String {
        return String(self[endIndex.predecessor()])
    }
    var scrambleMiddle: String {
        if count(self) < 4 {
            return self
        }
        return first + String(Array(dropLast(dropFirst(self))).shuffled) + last
    }
}


let myWordListScrambled = "Hello Playground".wordList.map{$0.scrambleMiddle}

println(myWordListScrambled)   // "[Hlelo, Plnrgayoud]"

Note: Shuffle Extension variation from this answer

edited May 23 '17 at 12:21

Community

1
1

answered Jun 27 '15 at 19:06

Leo Dabus

216,610
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Should I add this code outside of ViewController class? Otherwise I'm getting an error(Decleration is only valid at file scope). Thus, I added it outside of ViewController class. But in that case, I cannot call UITextField instead of "Hello Playground"(myWordListScrambled). How can I fix it? – Encul Jun 27 '15 at 20:34
Yes all extensions must be placed out of your view controller. – Leo Dabus Jun 27 '15 at 20:37
Ok thanks. But how can I use inputBox instead of "Hello Playground"(myWordListScrambled)? I tried ViewController().inputBox but I got an error(UITextView does not have a member named 'wordList') – Encul Jun 27 '15 at 20:50
Hi, how can I use that code in swift 2.0? @LeoDabus – Encul Jul 25 '15 at 09:33

How to process words one by one?

2 Answers2