Antlr4Utils.java 文件源码

public static void print(final ParseTree node, final int level, CommonTokenStream stream) {
    final Interval sourceInterval = node.getSourceInterval();

    final Token firstToken = stream.get(sourceInterval.a);

    int line = firstToken.getLine();
    int charStart = firstToken.getCharPositionInLine();

    int endLine = line;
    int endChar = charStart + firstToken.getText().length();

    String data = "@(" + line + ":" + charStart + "," + endLine + ":" + endChar + ") with text: "
            + firstToken.getText();
    final int tmp = level + 1;
    final StringBuilder sb = new StringBuilder();
    sb.append(StringUtils.repeat("\t", level));
    sb.append(node.getClass().getSimpleName() + ": " + data + " :" + node.getText());
    System.out.println(sb.toString());
    final int n = node.getChildCount();
    for (int i = 0; i < n; i++) {

        final ParseTree c = node.getChild(i);
        print(c, tmp, stream);

    }
}