Romanian text is written in gibberish by taking the original text and inserting after each vowel the-CodePudding

The code works well now. Fell free to use it if you need it.

Problem:

To write a console application that translates a text from gibberish into Romanian. The gibberish language is similar to Romanian. A Romanian text is written in gibberish by taking the original text and inserting after each vowel the letter p and the corresponding vowel.

Example:

For input data:

Apanapa aparepe meperepe.

At the console it will show:

Ana are mere

Here is my code:

using System;
using System.Text;

namespace FromGibberishUgly
{
    class Program
    {        
        private static string GibberishToRomanian(string text)
        {
            if (null == text)
                return "";

            const string vowels = "aeiouAEIOU";

            StringBuilder sb = new StringBuilder(text.Length);

            for (int i = 0; i < text.Length;   i)
            {
                sb.Append(text[i]);                
                if (i < text.Length - 2 &&
                    vowels.Contains(text[i]) &&
                    text[i   1] == 'p' &&
                    char.ToLower(text[i   2]) == char.ToLower(text[i]))
                    i  = 2;
            }

            return sb.ToString();
        }
        static void Main(string[] args)
        {               
            Console.WriteLine(GibberishToRomanian(Console.ReadLine()));
        }
    }
}

CodePudding user response：

When having a simple pattern (vowel p vowel in your case) you can try using regular expressions:

using System.Text.RegularExpressions;

...

private static string GibberishToRomanian(string text) =>  
  Regex.Replace(text ?? "", @"([aeiou])p\1", "$1", RegexOptions.IgnoreCase);

Demo:

Console.Write(GibberishToRomanian("Apanapa aparepe meperepe"));

Outcome:

Ana are mere

Pattern explained:

([aeiou]) - capturing group #1 for any vowel
p         - letter 'p'
\1        - value captured by group #1

Edit: If you want to stick to loops, you can try put it like this:

private static string GibberishToRomanian(string text) {
  if (null == text)
    return "";

  const string vowels = "aeiouAEIOU";

  StringBuilder sb = new StringBuilder(text.Length);

  for (int i = 0; i < text.Length;   i) {
    sb.Append(text[i]);

    // when facing vowel   p   vowel we jump over p   vowel 
    if (i < text.Length - 2 &&
        vowels.Contains(text[i]) &&
        text[i   1] == 'p' &&
        char.ToLower(text[i   2]) == char.ToLower(text[i]))
      i  = 2;
  }

  return sb.ToString();
}

The program will be (fiddle)

using System;
using System.Text;
using System.Text.RegularExpressions;

namespace FromGibberishUgly {
  class Program {
    //TODO: or replace it with loop solution
    private static string GibberishToRomanian(string text) =>
      Regex.Replace(text ?? "", @"([aeiou])p\1", "$1", RegexOptions.IgnoreCase);

    static void Main(string[] args) {
      Console.WriteLine(GibberishToRomanian(Console.ReadLine()));
    }
  }
}