How can I strip punctuation from a string?

new string(myCharCollection.Where(c => !char.IsPunctuation(c)).ToArray());

Why not simply:

string s = "sxrdct?fvzguh,bij.";
var sb = new StringBuilder();

foreach (char c in s)
{
   if (!char.IsPunctuation(c))
      sb.Append(c);
}

s = sb.ToString();

The usage of RegEx is normally slower than simple char operations. And those LINQ operations look like overkill to me. And you can't use such code in .NET 2.0...

Assuming "best" means "simplest" I suggest using something like this:

String stripped = input.replaceAll("\\p{Punct}+", "");

This example is for Java, but all sufficiently modern Regex engines should support this (or something similar).

Edit: the Unicode-Aware version would be this:

String stripped = input.replaceAll("\\p{P}+", "");

The first version only looks at punctuation characters contained in ASCII.

You can use the regex.replace method:

 replace(YourString, RegularExpressionWithPunctuationMarks, Empty String)

Since this returns a string, your method will look something like this:

 string s = Regex.Replace("Hello!?!?!?!", "[?!]", "");

You can replace "[?!]" with something more sophiticated if you want:

(\p{P})

This should find any punctuation.

Based off GWLlosa's idea, I was able to come up with the supremely ugly, but working:

string s = "cat!";
s = s.ToCharArray().ToList<char>()
      .Where<char>(x => !char.IsPunctuation(x))
      .Aggregate<char, string>(string.Empty, new Func<string, char, string>(
             delegate(string s, char c) { return s + c; }));

The most braindead simple way of doing it would be using string.replace

The other way I would imagine is a regex.replace and have your regular expression with all the appropriate punctuation marks in it.

Here's a slightly different approach using linq. I like AviewAnew's but this avoids the Aggregate

        string myStr = "Hello there..';,]';';., Get rid of Punction";

        var s = from ch in myStr
                where !Char.IsPunctuation(ch)
                select ch;

        var bytes = UnicodeEncoding.ASCII.GetBytes(s.ToArray());
        var stringResult = UnicodeEncoding.ASCII.GetString(bytes);

For anyone who would like to do this via RegEx:

This code shows the full RegEx replace process and gives a sample Regex that only keeps letters, numbers, and spaces in a string - replacing ALL other characters with an empty string:

//Regex to remove all non-alphanumeric characters
System.Text.RegularExpressions.Regex TitleRegex = new 
System.Text.RegularExpressions.Regex("[^a-z0-9 ]+", 
System.Text.RegularExpressions.RegexOptions.IgnoreCase);

string ParsedString = TitleRegex.Replace(stringToParse, String.Empty);

return ParsedString;

$newstr=ereg_replace("[[:punct:]]",'',$oldstr);

This is simple code for removing punctuation from strings given by the user

Import required library

    import string

Ask input from user in string format

    strs = str(input('Enter your string:'))

    for c in string.punctuation:
        strs= strs.replace(c,"")
    print(f"\n Your String without punctuation:{strs}")

#include<string>
    #include<cctype>
    using namespace std;

    int main(int a, char* b[]){
    string strOne = "H,e.l/l!o W#o@r^l&d!!!";
    int punct_count = 0;

cout<<"before : "<<strOne<<endl;
for(string::size_type ix = 0 ;ix < strOne.size();++ix)   
{   
    if(ispunct(strOne[ix])) 
    {
            ++punct_count;  
            strOne.erase(ix,1); 
            ix--;
    }//if
}
    cout<<"after : "<<strOne<<endl;
                  return 0;
    }//main