Package org.h2.bnf

Interface BnfVisitor


  • public interface BnfVisitor
    The visitor interface for BNF rules.
    • Method Detail

      • visitRuleElement

        void visitRuleElement​(boolean keyword,
                              java.lang.String name,
                              Rule link)
        Visit a rule element.
        Parameters:
        keyword - whether this is a keyword
        name - the element name
        link - the linked rule if it's not a keyword
      • visitRuleRepeat

        void visitRuleRepeat​(boolean comma,
                             Rule rule)
        Visit a repeat rule.
        Parameters:
        comma - whether the comma is repeated as well
        rule - the element to repeat
      • visitRuleFixed

        void visitRuleFixed​(int type)
        Visit a fixed rule.
        Parameters:
        type - the type
      • visitRuleList

        void visitRuleList​(boolean or,
                           java.util.ArrayList<Rule> list)
        Visit a rule list.
        Parameters:
        or - true for OR, false for AND
        list - the rules
      • visitRuleOptional

        void visitRuleOptional​(Rule rule)
        Visit an optional rule.
        Parameters:
        rule - the rule
      • visitRuleOptional

        void visitRuleOptional​(java.util.ArrayList<Rule> list)
        Visit an OR list of optional rules.
        Parameters:
        list - the optional rules
      • visitRuleExtension

        void visitRuleExtension​(Rule rule,
                                boolean compatibility)
        Visit a rule with non-standard extension.
        Parameters:
        rule - the rule
        compatibility - whether this rule exists for compatibility only