Create a single string using regex

Question

How do i read the following text into a single string using c# regex?

*EDIT * :70://this is a string //this is continuation of string even more text 13

this is stored in a c# List object

so for example, the above needs to return

this is a string this is continuation of string even more tex

I've thought something like this would do the job, but it doesn't return any group values

foreach (string in inputstring)
{
   string[] words
   words = str.Split(default(string[]), StringSplitOptions.RemoveEmptyEntries);
   foreach (string word in words)
   {
      stringbuilder.Append(word + " ");
   }
 }
 Match strMatch = Regex.Match(stringBuilder, @"[^\W\d]+");
 if(strMatch.Success)
 {
     string key = strMatch.Groups[1].Value;
 }

perhaps, i'm going about this all wrong, but i need to use the regex expression to formualte a single string from the example string.

This code won't compile - you are missing a variable name for string in your foreach. Also, you're not using said variable anywhere — CodingIntrigue
– CodingIntrigue, Commented Sep 11, 2013 at 11:15
Search for a regex that replaces any non-alpha characters, ie. [a-zA-Z] including carriage returns and line feeds. By replacing everything you don't need with string.empty, you should achieve your goal. — Andrew Grothe
– Andrew Grothe, Commented Sep 11, 2013 at 11:16
Kind of like this question: stackoverflow.com/questions/4220172/… — Andrew Grothe
– Andrew Grothe, Commented Sep 11, 2013 at 11:17
I've not listed all the code, so i'm not too concerned it won't compile! - it's just example code - hey but thanks for the minus :-) — CSharpNewBee
– CSharpNewBee, Commented Sep 11, 2013 at 11:32
For some reason the example string ended up on one line, this may of led to the confusion, and some of hte responses. Checking for a regex for a single string would be easy. — CSharpNewBee
– CSharpNewBee, Commented Sep 11, 2013 at 11:35

dav_i · Accepted Answer · 2013-09-11 11:21:08Z

2

var input = @":70://this is a string //this is continuation of string even more text 13";

Regex.Replace(input, @"[^\w\s]|[\d]", "").Trim();
// returns: this is a string this is continuation of string even more text

Explanation of regex:

[^ ... ] = character set not matching what's inside
\w       = word character
\s       = whitespace character
|        = or
\d       = digit

Alternatively you could use the regex [^A-Za-z\s] which reads "don't match capital letters, lowercase letters or whitespace".

answered Sep 11, 2013 at 11:21

dav_i

28.2k17 gold badges110 silver badges138 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Create a single string using regex

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related