String Information Class

Question

I am looking for something rather specific, and I don't really know what to call it. Let me explain: I require a small class/struct that takes a string and gathers information about it. So I pass my string into the constructor and it "frisks" the string, gathering how many characters the string has, how many letters are in it, how many numbers, how many lower case letters, how many uppercase letters, how long it is, etc. I was about to develop this myself, but was wondering I it already existed within the .NET framework.

Thanks.

I don't believe there is a class/struct that does exactly what you want. However, all the methods necessary to gather the information already exist, and are easy to use. — Fabio, Sep 25 '15 at 02:05
.Net does not provide this out of the box. You will need to develop a specific Class to provide this information, or develop a series of String extensions. e.g. NumberCharCount(), UpperCharCount() etc. — SyntaxGoonoo, Sep 25 '15 at 02:06

score 5 · Accepted Answer · answered Sep 25 '15 at 02:14

5

No, this doesn't exist. But it's simple enough to write yourself, you can do everything you require with a bit of LINQ and char extensions:

var count = str.Count();
var letters = str.Count(char.IsLetter);
var numbers = str.Count(char.IsDigit);
var lowers = str.Count(char.IsLower);
var uppers = str.Count(char.IsUpper);
//etc...

answered Sep 25 '15 at 02:14

Jonesopolis

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Simple enough if one does not care about surrogate pairs and all kind of combining characters... For more serious code [TextElementEnumerator](https://msdn.microsoft.com/en-us/library/system.globalization.textelementenumerator(v=vs.110).aspx) may be needed. – Alexei Levenkov Sep 25 '15 at 03:11

score 2 · Answer 2 · edited May 23 '17 at 11:59

2

NO there is no such class exists in .NET Framework which gives you all the necessary details you are looking for. You need to create it yourself.

Just my assumption after looking at the details you are looking into the string you might be looking for Verifying Password Strength

edited May 23 '17 at 11:59

Community

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answered Sep 25 '15 at 02:06

Mohit S

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Not exactly, but you were pretty close to what I am needing this for. Good guess! – Krythic Sep 25 '15 at 09:37

score 1 · Answer 3 · answered Sep 25 '15 at 02:06

1

Have a look at the Char structure. It has lots of static functions like Char.IsDigit, Char.IsNumber, Char.IsLower

answered Sep 25 '15 at 02:06

Muraad Nofal

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score 1 · Answer 4 · answered Sep 25 '15 at 03:47

In addition to the System.String and System.Char classes to gather information, you can use classes in the System.Globalization namespace, such as StringInfo, TextInfo, CharUnicodeInfo and others.

Moreover, you can use the Character Classes in Regular Expressions. For example, Unicode Categories: diacritic marks, punctuation and others. Or Unicode Named Blocks: IsGreek, IsCyrillic and many others.

String Information Class

4 Answers4