Question

How exactly is string[] args populated in a C# Main method?

For instance, is white space stripped? Are any of the elements ever empty string or null? How are single and double quotes handled?

MSDN doesn’t explain how and merely says

The parameter of the Main method is a String array that represents the command-line arguments

Answer 1

I believe the args given to Main are those returned by Environment.GetCommandLineArgs() after removing the first of the list. MSDN describes the suprisingly complex logic concerning backslashes:

Command line arguments are delimited by spaces. You can use double quotation marks (“) to include spaces within an argument. The single quotation mark (‘), however, does not provide this functionality.

If a double quotation mark follows two or an even number of backslashes, each proceeding backslash pair is replaced with one backslash and the double quotation mark is removed. If a double quotation mark follows an odd number of backslashes, including just one, each preceding pair is replaced with one backslash and the remaining backslash is removed; however, in this case the double quotation mark is not removed.

Thanks to Christian.K in the comments.