How to read characters in a string as their UTF-32 decimal values in C#?

How to read characters in a string as their UTF-32 decimal values in C#?

To read characters in a string as their UTF-32 decimal values in C#, you can use the GetBytes method of the Encoding.UTF32 class to get the UTF-32 encoded bytes of the string, and then convert those bytes to their decimal values.

Here's an example of how to do this:

string inputString = "Hello, world!";
byte[] utf32Bytes = Encoding.UTF32.GetBytes(inputString);
int[] decimalValues = new int[utf32Bytes.Length / 4];

for (int i = 0, j = 0; i < utf32Bytes.Length; i += 4, j++)
{
    decimalValues[j] = BitConverter.ToInt32(utf32Bytes, i);
}

foreach (int value in decimalValues)
{
    Console.WriteLine(value);
}

In this example, we're creating a string variable inputString that contains the text we want to process. We're then using the GetBytes method of the Encoding.UTF32 class to get the UTF-32 encoded bytes of the string, which we store in a byte array called utf32Bytes.

We then create an integer array decimalValues that will hold the decimal values of each character in the input string. We iterate over the utf32Bytes array using a for loop, incrementing the index by 4 each time to account for the 4-byte length of each UTF-32 character.

Inside the loop, we're using the BitConverter.ToInt32 method to convert each 4-byte block of bytes to its corresponding decimal value, which we store in the decimalValues array.

Finally, we're iterating over the decimalValues array using a foreach loop, and printing each value to the console.

Note that this method assumes that each character in the input string is a UTF-32 character. If the string contains characters encoded in a different format, you may need to adjust the code accordingly.

Examples

  1. "C# read UTF-32 decimal values of characters in a string"

    • Description: This query provides a general approach to read UTF-32 decimal values of characters in a string.
    // Code Implementation
string inputString = "Hello";
foreach (char c in inputString)
{
    int utf32Value = char.ConvertToUtf32(c.ToString(), 0);
    // Use utf32Value as needed
}

  2. "C# read UTF-32 decimal values using LINQ"

    • Description: This query explores using LINQ to read UTF-32 decimal values of characters in a string.
    // Code Implementation
string inputString = "Hello";
var utf32Values = inputString.Select(c => char.ConvertToUtf32(c.ToString(), 0));
// Use utf32Values as needed

  3. "C# read UTF-32 decimal values with hexadecimal representation"

    • Description: This query addresses scenarios where you want to represent UTF-32 decimal values in hexadecimal format.
    // Code Implementation
string inputString = "Hello";
foreach (char c in inputString)
{
    int utf32Value = char.ConvertToUtf32(c.ToString(), 0);
    string hexRepresentation = utf32Value.ToString("X");
    // Use hexRepresentation as needed
}

  4. "C# read UTF-32 decimal values and filter by character type"

    • Description: This query focuses on reading UTF-32 decimal values of characters in a string and filtering by character type (e.g., letters, digits).
    // Code Implementation
string inputString = "Hello123";
var utf32Values = inputString
    .Where(char.IsLetterOrDigit)
    .Select(c => char.ConvertToUtf32(c.ToString(), 0));
// Use utf32Values as needed

  5. "C# read UTF-32 decimal values and exclude specific characters"

    • Description: This query explores excluding specific characters while reading UTF-32 decimal values in C#.
    // Code Implementation
string inputString = "Hello!";
var utf32Values = inputString
    .Where(c => c != '!')
    .Select(c => char.ConvertToUtf32(c.ToString(), 0));
// Use utf32Values as needed

  6. "C# read UTF-32 decimal values and handle surrogate pairs"

    • Description: This query addresses scenarios where you want to handle surrogate pairs while reading UTF-32 decimal values.
    // Code Implementation
string inputString = "𐐀"; // surrogate pair character
foreach (char c in inputString)
{
    int utf32Value = char.ConvertToUtf32(c.ToString(), 0);
    // Handle surrogate pair if needed
}

  7. "C# read UTF-32 decimal values with custom format"

    • Description: This query focuses on custom formatting of UTF-32 decimal values while reading characters in a string.
    // Code Implementation
string inputString = "Hello";
foreach (char c in inputString)
{
    int utf32Value = char.ConvertToUtf32(c.ToString(), 0);
    string customFormat = $"U+{utf32Value:X4}";
    // Use customFormat as needed
}

  8. "C# read UTF-32 decimal values and calculate character frequency"

    • Description: This query explores calculating the frequency of each UTF-32 decimal value while reading characters in a string.
    // Code Implementation
string inputString = "Hello";
var utf32Frequency = inputString
    .GroupBy(c => char.ConvertToUtf32(c.ToString(), 0))
    .ToDictionary(group => group.Key, group => group.Count());
// Use utf32Frequency as needed

  9. "C# read UTF-32 decimal values and get distinct characters"

    • Description: This query addresses scenarios where you want to get distinct UTF-32 decimal values while reading characters in a string.
    // Code Implementation
string inputString = "Hello";
var distinctUtf32Values = inputString
    .Select(c => char.ConvertToUtf32(c.ToString(), 0))
    .Distinct();
// Use distinctUtf32Values as needed

  10. "C# read UTF-32 decimal values and create a dictionary of characters"

    • Description: This query explores creating a dictionary with characters and their corresponding UTF-32 decimal values.
    // Code Implementation
string inputString = "Hello";
var utf32Dictionary = inputString
    .ToDictionary(c => c, c => char.ConvertToUtf32(c.ToString(), 0));
// Use utf32Dictionary as needed

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