xgnatugn.adb: Allow dots to be used in ug_words (-gnatw.c and -gnatw.C)

xgnatugn.adb: Allow dots to be used in ug_words (-gnatw.c and -gnatw.C)

2007-04-20  Vincent Celier  <celier@adacore.com>
	    Robert Dewar  <dewar@adacore.com>

	* xgnatugn.adb: Allow dots to be used in ug_words (-gnatw.c and
	-gnatw.C)

	* gnat_ugn.texi: Fix ordering of -g switch for gnatmake
	Document gnatbind switch -a
	(case Constructions): Document that variables declarations are allowed
	for previously declared variables.
	Fix external lib project example
	-gnatg: Indicate new VMS qualifier /GNAT_INTERNAL
	Indicate that "#if not X or Y then" is not allowed in input files to
	gnatprep.
	Document gnatw.x and gnatw.X warning flags
	Mention -Winline switch to activate warnings when back-end inlining is
	ineffective.
	Add gnatcheck rule descriptions
	Describe how to use the GNAT driver to call a tool on a closure.
	Describe how to run project-wide checks or metrics.
	Document gnatbind's -R option
	Updated to account for Ada 2005 support

	* gnat_rm.texi (Case Construction): Allow variable declarations for
	previously declared variables.
	(Representation Clauses and Pragmas): Lift restriction on alignment
	clauses for record types.
	(Ada.Characters.*): Fix typo in reference to A.3.3(27).
	Document No_Exception_Propagation restriction
	Document No_Body pragma
	Updated to account for Ada 2005 support; corrected some typos
	(Implementation Defined Pragmas): Document pragma Universal_Aliasing.

	* gnat-style.texi: Make it clear that we never use mode IN for
	procedures or functions

	* ug_words: Add entries for -gnatw.x and -gnatw.X
	Add entries for -gnatw.c/.C

From-SVN: r125475