At 00:21 22/01/2010, =?koi8-r?B?4NLV28vJziDtycjBycw=?= wrote: >type_declaration_stmt > : label? declaration_type_spec ( (T_COMMA attr_spec )* >T_COLON_COLON )? > entity_decl (T_COMMA entity_decl)* end_of_stmt > -> ^(T_TYPE_DECLARATION_STMT declaration_type_spec attr_spec* >entity_decl)+ > ; [...] >BUT declaration_type_spec subtree isn't dublicated (only the root >of subtree). > >Where is mistake?
IIRC, when you use a rule name in a rewrite rule, it represents "the first unused instance of this rule in the input" (which is why entity_decl is doing what it is). So the second and subsequent times it appears (during the + loop) the value is empty since it didn't occur any more times in the input. To duplicate nodes you need to use a label. List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address
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