Replace a set of characters in a string

Question

How to replace a set of characters where I only know the first and the last one, in between is a variable that is not constant.

All I know is that this string will always start with & and it will end with ;

string str = "Hello &145126451; mate!";

How to get rid of &145126451; ?

So the desired result is:

string result = "Hello  mate!"

You want to replace, remove or get this part? – Tim Schmelter Jun 07 '16 at 08:54 — Tim Schmelter, Jun 07 '16 at 08:54
@TimSchmelter I'd like to replace it with an empty string. – Naughty Ninja Jun 07 '16 at 08:54 — Naughty Ninja, Jun 07 '16 at 08:54

score 5 · Answer 1 · answered Jun 07 '16 at 08:59

5

The most easiest way is to use Regex:

    Regex yourRegex = new Regex(@"&.*;");
    string result = yourRegex.Replace("Hello &145126451; mate!", String.Empty);
    Console.WriteLine(result);

Here is a fiddle with example.

answered Jun 07 '16 at 08:59

teo van kot

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2

Probably, you want `@"&.*?;"` pattern (please, notice `?`), otherwise `"Hello &456; mate! &123;"` will be changed into just `"Hello"` – Dmitry Bychenko Jun 07 '16 at 09:05
@DmitryBychenko it really depends on OP case... – teo van kot Jun 07 '16 at 09:58

Replace a set of characters in a string

1 Answers1