C#•14mo ago

❔ How to censor a bad word in capital letters without changing original letters case?

I'm trying to loop through a list of bad words to filter them out, but when their case is different I had to use ToLower() which changes the case of original message completely to lower:

string msgWithBadWords;
foreach (string word in badList)
{
    msgWithBadWords = msgWithBadWords.ToLower().Replace(word, "bad")
}

string msgWithBadWords;
foreach (string word in badList)
{
    msgWithBadWords = msgWithBadWords.ToLower().Replace(word, "bad")
}

12 Replies

RumTery•14mo ago

just add another string

string msgWithBadWords;
string replacementWords;
foreach (string word in badList)
{
    replacementWords = msgWithBadWords.ToLower().Replace(word, "bad")
}

string msgWithBadWords;
string replacementWords;
foreach (string word in badList)
{
    replacementWords = msgWithBadWords.ToLower().Replace(word, "bad")
}

C# strings are immutable classes. So when you do something like

            string a = "aaaa";
            string b = a.Replace('a', 'b');
            Console.WriteLine(a);
            Console.WriteLine(b);

            string a = "aaaa";
            string b = a.Replace('a', 'b');
            Console.WriteLine(a);
            Console.WriteLine(b);

It will print: aaaa bbbb

MoatazOP•14mo ago

I want to retain the org msg case, which might be "THIS IS BAD MSG", ToLower() converts the whole msg to lower before replacing the bad word.

RumTery•14mo ago

string msgWithBadWords;
foreach (string word in badList)
{
    msgWithBadWords = msgWithBadWords.Replace(word, "bad", StringComparison.OrdinalIgnoreCase)
}

string msgWithBadWords;
foreach (string word in badList)
{
    msgWithBadWords = msgWithBadWords.Replace(word, "bad", StringComparison.OrdinalIgnoreCase)
}

Kouhai•14mo ago

@Moataz Let's say if the word you want to censor is "BLUE" would it get replaced by "bad" or "BAD"?

Aokiri 🐸•14mo ago

You could try with StringBuilder Since Strings in C# are immutable, StringBuilder in this case can help (they're mutable)

DbContext•14mo ago

Use String.Compare method. With OrdinalIgnoreCase.

Aokiri 🐸•14mo ago

How did you created those links?

DbContext•14mo ago

Discord supports markdown

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DbContext•14mo ago

[String.Compare](https://learn.microsoft.com/en-us/dotnet/api/system.string.compare#system-string-compare(system-string-system-string-system-stringcomparison)

[String.Compare](https://learn.microsoft.com/en-us/dotnet/api/system.string.compare#system-string-compare(system-string-system-string-system-stringcomparison)

Aokiri 🐸•14mo ago

Thanks a lot!

Angius•14mo ago

You can use regex to do case-insensitive replace: https://stackoverflow.com/a/6276004/6042255

Accord•14mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ How to censor a bad word in capital letters without changing original letters case?