todo:

find a good name for the project.
proper focus change for multiple scenarios (on window destroyed, ws switched, move client to ws etc).
Properly kill client on keypress.
proper logging for statusbar.
rules for managing windows (docks, dialogs, statusbar etc).
Client init hooks (switch ws, floating etc).
process starts but cannot write to pipe.
simple left click to focus.
windows changes size after mapping.
Other layouts (Fullscreen etc).
logging and layout functions are called too often (program slows down).
handle clients with urgent state.
ignore multiple MapRequest event for allocated client.
support for companion clients.
apply multiple window_rules to a single window.

less important todos:

a parent (frame) window for the clients, to possibly support titlebar, close button, window move etc.
workspace related apis (e.g. ws_getclient) in constant time.
status logging as a seperate module.

The statusbar's file stream pointer need to be nullified if the statusbar is terminated.
negative resize causes crash.
scratchpad dangling pointer, if window gets destroyed while unmapped.
ewmh's _NET_CLIENT_LIST doesn't play well with scratchpads.
not checking for transient after window rule.
cyclic dependency in monitor/layout modules.
cannot have lots of windows open. (layout resize windows...approaches zero).