Regex to match a string after colon

Question

Input string is something like this: OU=TEST:This001. We need extra "This001". Best in C#.

Answer 1

What about :

/OU=.*?:(.*)/

Here is how it works:

OU=  // Must contain OU=
.    // Any character
*    // Repeated but not mandatory
?    // Ungreedy (lazy) (Don't try to match everything)
:    // Match the colon
(    // Start to capture a group
  .    // Any character
  *    // Repeated but not mandatory
)    // End of the group

For the / they're delimiters to know where the regex start and where it ends (and for adding options).

The captured group will contain This001.

But it would be faster with a simple Substring().

yourString.Substring(yourString.IndexOf(":")+1);

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Resources :

• regular-expressions.info