org.h2.bnf

接口 BnfVisitor

public interface BnfVisitor

The visitor interface for BNF rules.

方法概要

限定符和类型	方法和说明
void	visitRuleElement(boolean keyword, String name, Rule link) Visit a rule element.
void	visitRuleExtension(Rule rule, boolean compatibility) Visit a rule with non-standard extension.
void	visitRuleFixed(int type) Visit a fixed rule.
void	visitRuleList(boolean or, ArrayList<Rule> list) Visit a rule list.
void	visitRuleOptional(ArrayList<Rule> list) Visit an OR list of optional rules.
void	visitRuleOptional(Rule rule) Visit an optional rule.
void	visitRuleRepeat(boolean comma, Rule rule) Visit a repeat rule.

方法详细资料

visitRuleElement

void visitRuleElement(boolean keyword,
                      String name,
                      Rule link)

Visit a rule element.

参数:

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.

参数:

comma - whether the comma is repeated as well

rule - the element to repeat

visitRuleFixed

void visitRuleFixed(int type)

Visit a fixed rule.

参数:

type - the type

visitRuleList

void visitRuleList(boolean or,
                   ArrayList<Rule> list)

Visit a rule list.

参数:

or - true for OR, false for AND

list - the rules

visitRuleOptional

void visitRuleOptional(Rule rule)

Visit an optional rule.

参数:

rule - the rule

visitRuleOptional

void visitRuleOptional(ArrayList<Rule> list)

Visit an OR list of optional rules.

参数:

list - the optional rules

visitRuleExtension

void visitRuleExtension(Rule rule,
                        boolean compatibility)

Visit a rule with non-standard extension.

参数:

rule - the rule

compatibility - whether this rule exists for compatibility only