What are good regular expressions?

Question

I have worked for 5 years mainly in java desktop applications accessing Oracle databases and I have never used regular expressions. Now I enter Stack Overflow and I see a lot of

Answer 1

These RE's are specific to Visual Studio and C++ but I've found them helpful at times:

Find all occurrences of "routineName" with non-default params passed:

routineName\(:a+\)

Conversely to find all occurrences of "routineName" with only defaults: routineName\(\)

To find code enabled (or disabled) in a debug build:

\#if._DEBUG*

Note that this will catch all the variants: ifdef, if defined, ifndef, if !defined