This code is the same as you had. Just re-arranged a little.
I moved the sentence check first to catch the next non dot. The way it was (after the space skip) made it impossible to tell between the...

In the case of zero sized array, it was generally used as an easy way to index into a variable sized buffer ...


struct Header {
DWORD dwMagic;
DWORD dwSize;
BYTE data[];
};
...

You can do this without the 'if' checks and with 2 nested for loops.

Break your problem up to it's smallest pieces and choose a path that solves the pieces with the least redundancy.

Smallest...