TqlExpressionVisitor.java 文件源码

@Override
public TqlElement visitFieldMatchesRegexp(TqlParser.FieldMatchesRegexpContext ctx) {
    LOG.debug("Visit field matches: " + ctx.getText());
    TerminalNode field = ctx.getChild(TerminalNode.class, 0);
    TqlElement fieldName = field.accept(this);
    TerminalNode regexNode = ctx.getChild(TerminalNode.class, 2);

    if (regexNode instanceof ErrorNode)
        throw new TqlException(regexNode.getText());

    String quotedRegex = regexNode.getSymbol().getText();
    String regex = quotedRegex.substring(1, quotedRegex.length() - 1);
    FieldMatchesRegex fieldMatchesRegex = new FieldMatchesRegex(fieldName, regex);
    LOG.debug("End visit field matches: " + ctx.getText());
    return fieldMatchesRegex;
}