Re: regex syntax

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jg wrote:

I did find the pattern string getting too huge. So I started to split date pattern into 3 components before using them to compose the final pattern, although I did not use the string format method.

Well, if you ask me, you should always use String.Format when putting together strings from more than two parts. A String.Format call can create an arbitrarily complicated string in one operation, while a concatenation a + b + c takes two operations at least. Strings are immutable in .NET, so a + b + c will end up allocating several new strings before the final result is ready.

The argument against this is that the compiler might get rid of some of the overhead for you, at least when a, b and c are static strings. But I don't like to depend on that, especially when the String.Format call is usually so much better readable:

"At " + time.ToString() + ", the user " + user + "had a problem accessing the " + resource + "resource."

String.Format("At {0}, the user {1} had a problem accessing the {2} resource.", time, user, resource);



               Oliver Sturm
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