Hello Stephen, Thank you so much for your detailed information, which is exactly what I need by now. After a glimpse on your email address, It comes to me that you might be the guy in a series of STL lectures I found on the net. It's really you! Even though I'm not a very beginner of STL, I've watched some of the video both for revisiting STL and for English practice. :-) Thank you also for your STL lectures.
The part I could not interpret is: ^|[\s,] And $|[\s,]
The docs say:
A '^' character shall match the start of a line. A '$' character shall match the end of a line.
Yes, I'm aware of this. But even with this in mind, I cannot interpret "^|[\s,]" and "$|[\s,]". For the former, I know '|' means alteration, but how can it be after '^'? For the latter, how can "|[\s,]" be expected after the end of a line (and the same confusion as above)?
It depends on how strict you want to be (see the unusual examples below, especially involving empty fields). One approach is to describe the fields
you're
interested in, and let regex_iterator find them. (Another approach, activating regex_token_iterator's magical field splitting ability, doesn't seem to be applicable here because you want to handle quoted strings - if I'm wrong about that I'd love to find out). I suggest the following (I've used VC10 RTM std::regex here, but boost::regex will behave identically):
C:\Temp>type meow.cpp
[code snippet]
C:\Temp>
Stephan T. Lavavej Member of the Society for Regex Simplicity, I mean, Visual C++ Libraries Developer
One more question - with you code, any empty 'token' between two contiguous ',' is ignored, what if someday I'd like to pick them up? B/Rgds Max