Regex Pattern Matching and wildcard retrieval

Question

Hi all,

So I have a long string that contains placeholder strings throughout it, like so:

string input = "abcdefg[MARK]h[MARK]ijklmn[MARK]p[MARK]qrstuvwxyz";

I wish to parse this string for occurences of "[MARK]" + singlewildcardchar + "[MARK]";

In the above example I'd like to return the letters 'h' and 'p'. How can I do this with Regex Patterns? Or is there a simpler way?

Thanks,

Jib

Answer 1

As long as it is always a single character between the [MARK] placeholders (and more than a single character elsewhere) then you can use the pattern:

\[MARK\](.)\[MARK\]

There are several places you can test out patterns online, which is very handy. E.g. http://regexstorm.net/tester

Answer 2

Many thanks, that's a handy little resource too.

Jib