This is an experimental checkin.

It has added optional prefixes an- and ró- to all adjectives.
Note that it will be problematic for these two adjectives:
ró-ard		Adj1-2;
ró-oirmhinneach		Adj1-3;
.. as it will generate both an-ró-ard and ró-ró-ard.
This can be avoided by removing these two adjectives from
the lexicon. Overgeneration of non-existing stems could be
stopped by flags, or even by a system distinguishing descriptive
and normative prefixing (we recognise all but mark some as wrong).
Please evaluate.

Author: Trondtr

src/fst/morphology/root-adj.lexc

@@ -13,7 +13,7 @@
 ! giellatekno@hum.uit.no or feedback@divvun.no
 
 ! ========================================================================== !
-! !!            !!!Irish morphological analyser                      !
+!!             #Irish morphological analyser                      !
 ! ========================================================================== !
 !! INTRODUCTION TO MORPHOLOGICAL ANALYSER OF Irish LANGUAGE.
 
@@ -765,7 +765,19 @@ Multichar_Symbols  !!≈ # @CODE@ definitions
 ^Verb
 ^áil
 
-LEXICON Root
+LEXICON Root           !!= - **@CODE@**  Where all adjectives start
+AdjectiveAndPrefix ;   !!= - **@CODE@**  and splits according to affix
+
+LEXICON AdjectiveAndPrefix  !!= - **@CODE@**
+an- AllAdjectives ;         !!= - **@CODE@** they may get an an- prefix
+ró- AllAdjectives ;         !!= - **@CODE@** ... a ró- prefix
+    AllAdjectives ;         !!= - **@CODE@** ... or no prefix
+                            !! - This is for testing only. We might want tags
+			    !!   for these prefixes or perhaps a flag that makes
+			    !!   it possible to block an- or ró- forms of certain
+			    !!   adjectives in the lexicon.
+
+LEXICON AllAdjectives
 	AdjA;				! ORIGINAL TEST LEXICON
 	AdjIrregular;			! ORIGINAL TEST LEXICON
 	Adj-BaseOnly;	!AdjBASE;	! ORIGINAL TEST LEXICON