How to get Substring between two Specific Characters in Swift

How to get Substring between two Specific Characters in Swift ?

Answer

To get a substring between two specific characters in Swift, you can use the substring(with:) method along with range(of:) to find the ranges of the characters.


✐ Examples

1 Get Substring Between Two Specific Characters in String

In this example,

  1. We create a string named str with a string value.
  2. We use the range(of:) method to find the ranges of the first and second specific characters.
  3. We use the upperBound of the range of the first character and the lowerBound of the range of the second character to define the range for our substring.
  4. We use the substring(with:) method to get the substring within the defined range.
  5. Finally, we print the substring to standard output.

Swift Program

import Foundation

let str = "Hello [World]"
if let startIndex = str.range(of: "[")?.upperBound,
   let endIndex = str.range(of: "]")?.lowerBound {
    let substring = str[startIndex..<endIndex]
    print("Substring between brackets is: \(substring)")
}

Output

Substring between brackets is: World

2 Get Substring Between Two Specific Characters in Another String

In this example,

  1. We create a string variable named str1 with a different value.
  2. We use the range(of:) method to find the ranges of the first and second specific characters.
  3. We use the upperBound of the range of the first character and the lowerBound of the range of the second character to define the range for our substring.
  4. We use the substring(with:) method to get the substring within the defined range.
  5. Finally, we print the substring to standard output.

Swift Program

import Foundation

let str1 = "Swift-(Programming)-Language"
if let startIndex = str1.range(of: "(")?.upperBound,
   let endIndex = str1.range(of: ")")?.lowerBound {
    let substring = str1[startIndex..<endIndex]
    print("Substring between parentheses is: \(substring)")
}

Output

Substring between parentheses is: Programming

Summary

In this tutorial, we learned How to get Substring between two Specific Characters in Swift language with well detailed examples.


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