Fastest way to parse text from an array

Question

I am trying to parse an array of items, each of which is structured like below:

[0x6100000b2480 - Message: Phlare, ID: 92329382, Sender: 2077303954, Timestamp: 1505263276721]

But I am just trying to get the value after "Sender:" so in this case "2077303954". But I will be iterating through a list of these, parsing the value out of each array index.

What value do you have? Do you have a string? An array? Where did this come from? Provide more details and some relevant code. — rmaddy, Sep 13 '17 at 04:23

Michael Dautermann · Answer 1 · 2017-09-13T00:57:34.003

Assuming "," only appears between values, separate them into pieces using split:

let arr = str.characters.split(separator: ",").map(String.init)
println(arr) // [0x6100000b2480 - Message: Phlare, ID: 92329382, Sender: 2077303954]

You can then split the strings in the resulting array again on ":" to get an array of alternating keys values.

Or perhaps the input was already an array?

Here's an example:

var resultingDictionary = [String:String]()
var stringArray = ["0x6100000b2480 - Message: Phlare", "ID: 92329382", "Sender: 2077303954", "Timestamp: 1505263276721:"]
for eachString in stringArray
{
    let arr = eachString.characters.split(separator: ":").map(String.init)
    resultingDictionary[arr[0]] = arr[1]
}

print("resulting dictionary is \(resultingDictionary)")

The same concept should work with NSString's componentsSeparatedByString (now known as components(separatedBy: ",").

Fastest way to parse text from an array

1 Answers1