How to strip non-ASCII characters from a string? (in C#)

How to strip non-ASCII characters from a string? (in C#)

You can strip non-ASCII characters from a string in C# by using regular expressions or iterating over the characters in the string and filtering out non-ASCII characters. Here are two examples:

Using Regular Expressions:

 using System.Text.RegularExpressions; string input = "This is a string with non-ASCII characters like é and ç."; string output = Regex.Replace(input, @"[^\u0000-\u007F]+", string.Empty); Console.WriteLine(output); // Output: "This is a string with non-ASCII characters like and ."

Iterating Over Characters:

 string input = "This is a string with non-ASCII characters like é and ç."; string output = new string(input.Where(c => c <= 127).ToArray()); Console.WriteLine(output); // Output: "This is a string with non-ASCII characters like and ."

In both examples, non-ASCII characters are removed from the string, leaving only ASCII characters. The regular expression pattern [^\u0000-\u007F]+ matches any character that is not in the ASCII range (\u0000 to \u007F), and the LINQ expression filters out any character with a Unicode value greater than 127.

Examples

  1. How to remove non-ASCII characters from a string in C#

    Description: Removing all non-ASCII characters from a string using regular expressions in C#.

    string input = "Hello, ����! This is a test string."; string result = Regex.Replace(input, @"[^\u0000-\u007F]+", ""); // Output: "Hello, ! This is a test string."

  2. C# code to strip non-ASCII characters from a string

    Description: Writing C# code to remove all non-ASCII characters from a string using a loop and checking each character's ASCII value.

    string input = "Hello, ����! This is a test string."; StringBuilder result = new StringBuilder(); foreach (char c in input) { if (c < 128) result.Append(c); } string cleanedString = result.ToString(); // Output: "Hello, ! This is a test string."

  3. How to filter out non-ASCII characters from a string in C#

    Description: Filtering out non-ASCII characters from a string in C# using LINQ.

    string input = "Hello, ����! This is a test string."; string result = new string(input.Where(c => c < 128).ToArray()); // Output: "Hello, ! This is a test string."

  4. C# code to remove non-ASCII characters from a string, preserving ASCII characters

    Description: Writing C# code to remove all non-ASCII characters from a string while preserving ASCII characters.

    string input = "Hello, ����! This is a test string."; string result = string.Concat(input.Where(c => c < 128)); // Output: "Hello, ! This is a test string."

  5. How to strip non-ASCII characters from a string, replacing them with a specified character in C#

    Description: Stripping non-ASCII characters from a string in C# and replacing them with a specified character (e.g., space).

    string input = "Hello, ����! This is a test string."; string result = Regex.Replace(input, @"[^\u0000-\u007F]+", " "); // Output: "Hello, This is a test string."

  6. C# code to remove non-ASCII characters from a string, preserving spaces

    Description: Writing C# code to remove all non-ASCII characters from a string while preserving spaces.

    string input = "Hello, ����! This is a test string."; string result = string.Concat(input.Where(c => c < 128 || c == ' ')); // Output: "Hello, ! This is a test string."

  7. How to clean a string by removing non-ASCII characters in C#

    Description: Cleaning a string by removing all non-ASCII characters using regular expressions in C#.

    string input = "Hello, ����! This is a test string."; string result = Regex.Replace(input, @"[^\u0000-\u007F]+", ""); // Output: "Hello, ! This is a test string."

  8. C# code to strip non-ASCII characters from a string, preserving newline characters

    Description: Writing C# code to remove all non-ASCII characters from a string while preserving newline characters.

    string input = "Hello,\n ����! This is a test\n string."; string result = string.Concat(input.Where(c => c < 128 || c == '\n')); // Output: "Hello,\n ! This is a test\n string."

  9. How to remove non-ASCII characters from a string, ignoring case in C#

    Description: Removing all non-ASCII characters from a string in C# while ignoring case sensitivity.

    string input = "Hello, ����! This is a test string."; string result = Regex.Replace(input, @"[^\u0000-\u007F]+", "", RegexOptions.IgnoreCase); // Output: "Hello, ! This is a test string."

  10. C# code to remove non-ASCII characters from a string, preserving digits

    Description: Writing C# code to remove all non-ASCII characters from a string while preserving digits.

    string input = "Hello, ����! 123 This is a test string."; string result = string.Concat(input.Where(c => (c < 128 && char.IsDigit(c)) || c == ' ')); // Output: "Hello, ! 123 This is a test string."

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