returns a set of all non-terminals in the grammar . concode_field_sep HashMap<ArrayList<Terminal>,HashSet<NonTerminal>> posMap concode_elem_sep HashMap<NonTerminal,HashSet<ArrayList<Terminal>>> lexMap concode_field_sep void addRule concode_elem_sep boolean equals concode_elem_sep HashMap<ArrayList<Terminal>,HashSet<NonTerminal>> getPOSMap concode_elem_sep HashSet<NonTerminal> getPosTags concode_elem_sep HashSet<NonTerminal> getPosTags concode_elem_sep HashMap<NonTerminal,HashSet<ArrayList<Terminal>>> getLexMap concode_elem_sep void addKey concode_elem_sep HashSet<ArrayList<Terminal>> getRules
Set < NonTerminal > function ( ) { return lexMap . keySet ( ) ; }