#7-8 - C implementation of command server API

There have been almost two weeks since my last blog post.

During this time I changed level 0 implementation after some advice, I built a

sketch for level 1 and started implementing some level 1 commands. Also I built

a doxygen documentation for project.

After sending the patchbomb to mercurial dev list, I got some reviews and new

ideas about level 0 implementation. I changed the rawcommand function to receive

the argument list that will terminate by a NULL pointer instead of counting and

passing the size of argument list.

Concerning the sketch for level 1 I got some reviews and we made an agreement on

how this level must work. We made a list of commands that I will would like to

build first (add, commit, push, pull, log, import/export, merge, verify).

One of those first commands that I already implemented is the log command which

has to handle huge mass of data. In my implementation I used an iterator-like

mechanism which gets from cmd-server a change set in one call and returns in a

structure the parsed data.

Meanwhile I started to build the doxygen documentation for a better concept

understanding. I think that it's a good way to navigate through the c-hglib API,

and an easier way to find the needed function.