* Added SYNONYMS parsing (internals only)

sdl92.g

@@ -123,6 +123,8 @@ tokens {
         STRUCT;
         FIELDS;
         FIELD;
+        SYNONYM;
+        SYNONYM_LIST;
 }
 
 
@@ -263,9 +265,10 @@ content
                  | timer_declaration
                  | syntype_definition
                  | newtype_definition
-                 | variable_definition)*
+                 | variable_definition
+                 | synonym_definition)*
         ->       ^(TEXTAREA_CONTENT
-                     fpar* procedure* variable_definition* syntype_definition* newtype_definition* timer_declaration*);
+                     fpar* procedure* variable_definition* syntype_definition* newtype_definition* timer_declaration* synonym_definition*);
 
 
 timer_declaration
@@ -315,6 +318,16 @@ variable_definition
                 end
         ->      ^(DCL variables_of_sort+);
 
+synonym_definition 
+	:	internal_synonym_definition;
+	
+internal_synonym_definition
+	:	SYNONYM synonym_definition_item (',' synonym_definition_item)* end
+	->	^(SYNONYM_LIST synonym_definition_item+);
+	
+synonym_definition_item
+	:	sort sort '=' ground_expression
+	->      ^(SYNONYM sort sort ground_expression);
 
 variables_of_sort
         :       variable_id (',' variable_id)* sort (':=' ground_expression)?
@@ -959,7 +972,7 @@ conditional_expression
         :       IF expression THEN expression ELSE expression FI;
 
 
-synonym :       ID; // synonym_id | external_synonym;
+//synonym :       ID; // synonym_id | external_synonym;
 
 
 external_synonym
@@ -1262,6 +1275,7 @@ ENDNEWTYPE      :       E N D N E W T Y P E;
 ARRAY           :       A R R A Y;	
 CONSTANTS       :	C O N S T A N T S;
 STRUCT          :	S T R U C T;
+SYNONYM        	:       S Y N O N Y M;	
 StringLiteral   :       STR+ ;
 
 fragment

sdlSymbols.py

@@ -47,7 +47,7 @@ SDL_BLACKBOLD = ['\\b{word}\\b'.format(word=word) for word in (
                 'CHECKME', 'PROCEDURE', 'EXTERNAL', 'IN', 'OUT', 'TIMER',
                 'SET_TIMER', 'RESET_TIMER', 'VIA', 'ENTRY', 'EXIT',
                 'SYNTYPE', 'ENDSYNTYPE', 'CONSTANTS',
-				'NEWTYPE', 'ENDNEWTYPE', 'ARRAY', 'STRUCT')]
+				'NEWTYPE', 'ENDNEWTYPE', 'ARRAY', 'STRUCT', 'SYNONYM')]
 
 SDL_REDBOLD = ['\\b{word}\\b'.format(word=word) for word in (
               'INPUT', 'OUTPUT', 'STATE', 'DECISION', 'NEXTSTATE',