Java RuleNode.getChild方法代码示例

import org.antlr.v4.runtime.tree.RuleNode; //导入方法依赖的package包/类
@SuppressWarnings("unchecked")
@Override
public Object visitChildren(final RuleNode node) {

	final int n = node.getChildCount();

	for (int i = 0; i < n; i++) {
		final ParseTree c = node.getChild(i);
		c.accept(this);

	}
	final String textToFind = node.getText();
	if (StringUtils.containsIgnoreCase(textToFind, tempText)
			|| StringUtils.containsIgnoreCase(tempText, textToFind)) {
		nodes.add(new ParsedNode(node));
	}
	return null;

}
 

import org.antlr.v4.runtime.tree.RuleNode; //导入方法依赖的package包/类
public String visitChildren(RuleNode node) {
int n = node.getChildCount();
if (n > 1) {
    StringBuilder result = new StringBuilder();
    ParseTree child;
    String childResult;
    for (int i = 0; i < n; i++) {
	child = node.getChild(i);
	childResult = child.accept(this);
	if (childResult != null) {
	    if (i > 0) {
		result.append(' ');
	    }
	    result.append(childResult);
	}
    }
    return result.toString();
} else {
    if (n == 1) {
	return node.getChild(0).accept(this);
    } else {
	return node.getText();
    }
}
   }
 

import org.antlr.v4.runtime.tree.RuleNode; //导入方法依赖的package包/类
public List<String> visitChildren(RuleNode node) {
List<String> result = defaultResult();
List<String> childResult;
ParseTree child;
int n = node.getChildCount();
for (int i = 0; i < n; i++) {
    if (!shouldVisitNextChild(node, result)) {
	break;
    }

    child = node.getChild(i);
    childResult = child.accept(this);
    if (childResult != null) {
	if (result != null) {
	    result.addAll(childResult);
	} else {
	    result = childResult;
	}
    }
}
return result;
   }
 

import org.antlr.v4.runtime.tree.RuleNode; //导入方法依赖的package包/类
public String visitChildren(RuleNode node, List<Integer> withoutNodes) {
    if(node == null) return "";
    String result = this.defaultResult();
    int n = node.getChildCount();

    for(int i = 0; i < n && this.shouldVisitNextChild(node, result); ++i) {
        if(withoutNodes != null && withoutNodes.contains(i)) continue;
        ParseTree c = node.getChild(i);
        String childResult = c instanceof TerminalNode ? printTerminalNode((TerminalNode) c) : c.accept(this);
        result = this.aggregateResult(result, childResult);
    }

    return result;
}
 

import org.antlr.v4.runtime.tree.RuleNode; //导入方法依赖的package包/类
public String visitWithoutTerminals(RuleNode node) {
    String result = this.defaultResult();
    int n = node.getChildCount();

    for(int i = 0; i < n && this.shouldVisitNextChild(node, result); ++i) {
        ParseTree c = node.getChild(i);
        if(c instanceof TerminalNode) continue;
        String childResult = c.accept(this);
        result = this.aggregateResult(result, childResult);
    }

    return result;
}
 

import org.antlr.v4.runtime.tree.RuleNode; //导入方法依赖的package包/类
public String visitWithoutStrings(RuleNode node, String string) {
    String result = this.defaultResult();
    int n = node.getChildCount();

    for(int i = 0; i < n && this.shouldVisitNextChild(node, result); ++i) {
        ParseTree c = node.getChild(i);
        if(string.contains(c.getText())) continue;
        String childResult = c instanceof TerminalNode ? printTerminalNode((TerminalNode) c) : c.accept(this);
        result = this.aggregateResult(result, childResult);
    }

    return result;
}
 

import org.antlr.v4.runtime.tree.RuleNode; //导入方法依赖的package包/类
public String visitWithoutClasses(RuleNode node, Class nodeType) {
    String result = this.defaultResult();
    int n = node.getChildCount();

    for(int i = 0; i < n && this.shouldVisitNextChild(node, result); ++i) {
        ParseTree c = node.getChild(i);
        if(c.getClass() == nodeType) continue;
        String childResult = c instanceof TerminalNode ? printTerminalNode((TerminalNode) c) : c.accept(this);
        result = this.aggregateResult(result, childResult);
    }

    return result;
}
 

import org.antlr.v4.runtime.tree.RuleNode; //导入方法依赖的package包/类
private void appendSpaceToAggregateField(final StringBuilder sb, final RuleNode ctx) {
  for (int i = 0; i < ctx.getChildCount(); i++) {
    final ParseTree child = ctx.getChild(i);

    if (child instanceof RuleNode) {
      appendSpaceToAggregateField(sb, (RuleNode) child);

      if (child instanceof OptionAggregateValueFieldContext) {
        sb.append(AGREGATE_VALUE_FIELD_DELIMITER);
      }
    } else {
      sb.append(child.getText());
    }
  }
}
 

import org.antlr.v4.runtime.tree.RuleNode; //导入方法依赖的package包/类
/** Is {@code t} {@code (expr <expr>)} subtree? */
	protected RuleTagToken getRuleTagToken(ParseTree t) {
		if ( t instanceof RuleNode ) {
			RuleNode r = (RuleNode)t;
			if ( r.getChildCount()==1 && r.getChild(0) instanceof TerminalNode ) {
				TerminalNode c = (TerminalNode)r.getChild(0);
				if ( c.getSymbol() instanceof RuleTagToken ) {
//					System.out.println("rule tag subtree "+t.toStringTree(parser));
					return (RuleTagToken)c.getSymbol();
				}
			}
		}
		return null;
	}