When printing parse trees at top level, also show all the categories in the tree. \ref{Figure:PRINT-TREE-CATEGORIES-example} shows an example using the Toy1 grammar. \begin{figure} \begin{verbatim} >> PRINT_TREE_CATEGORIES_ON (Print categories in parse trees)

--- Performed command PRINT_TREE_CATEGORIES_ON, time = 0.02 seconds

>> switch on the light (Parsing with left-corner parser)

Analysis time: 0.00 seconds

Return value: [[action,switch],[device,light], [onoff,on],[utterance_type,command]]

Global value: []

Syn features: []

Parse tree:

.MAIN [TOY1_RULES:1-4] utterance [TOY1_RULES:5-9] command [TOY1_RULES:10-14] / verb lex(switch) [TOY1_LEXICON:8-10] | onoff null lex(on) [TOY1_LEXICON:24-25] | np [TOY1_RULES:25-29] | / lex(the) | | noun lex(light) [TOY1_LEXICON:16-17] \ \ null

------------------------------- FILES -------------------------------

TOY1_LEXICON: d:/regulus/examples/toy1/regulus/toy1_lexicon.regulus TOY1_RULES: d:/regulus/examples/toy1/regulus/toy1_rules.regulus

Categories:

[('.MAIN':[]), (command:[]), (noun:[sem_np_type=switchable,singplur=sing]), (np:[sem_np_type=switchable,singplur=sing]), (onoff:[]), (utterance:[]), (verb:[obj_sem_np_type=switchable,singplur=sing, vform=imperative,vtype=switch])] \end{verbatim} \caption{Example showing use of {\tt PRINT\_TREE\_CATEGORIES\_ON}} \label{Figure:PRINT-TREE-CATEGORIES-example} \end{figure}