Issue 5: Names of variables and functions
Status:  Accepted
Owner:
Project Member Reported by prog.bontiv, Nov 9, 2011
* Variable names, C function names and file names _MUST_ be expressed using
  lower case letters, digits and underscores *only*.  More precisely, entity
  names _MUST_ be matched by the following regular expression:

      [a-z][a-z0-9_]*

* Structure union and type names _MAY_ be aliased using `typedef`. It is
  therefore mandatory to define shortcut names to structures, unions and
  enumerations using the significant prefix: `s_` for structures, `u_` for
  unions and `e_` for enumerations.