[antlr-interest] Re: Manually insert a node into an automatically contructed tree
oliver_kellogg
oliver_kellogg at yahoo.com
Sat Mar 13 11:31:38 PST 2004
Terence Parr wrote:
>
> Oh, sorry about that...that rule has no content to match. Put this
> imaginary root generation code in the rule where you actually match
> stuff that needs an imaginary root.
Ah, just to make sure I am understanding you:
I changed the original
component_list [boolean has_discrim]
: component_items ( variant_part { has_discrim }? )?
| empty_component_items variant_part { has_discrim }?
;
to
component_list [boolean has_discrim]
: component_items ( variant_part { has_discrim }? )?
|! vp:variant_part { has_discrim }?
{ #component_list =
#(#[COMPONENT_LIST, "COMPONENT_LIST"],
#(#[COMPONENT_ITEMS, "COMPONENT_ITEMS"]), #vp); }
;
Is that what you had in mind?
Thanks alot,
Oliver
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