Method parseName

java/core/src/java/org/apache/orc/impl/ParserUtils.java:87–132

(ParserUtils.StringPosition source)

  }

  public static String parseName(ParserUtils.StringPosition source) {
    if (source.position == source.length) {
      throw new IllegalArgumentException("Missing name at " + source);
    }
    final int start = source.position;
    if (source.value.charAt(source.position) == '`') {
      source.position += 1;
      StringBuilder buffer = new StringBuilder();
      boolean closed = false;
      while (source.position < source.length) {
        char ch = source.value.charAt(source.position);
        source.position += 1;
        if (ch == '`') {
          if (source.position < source.length &&
                  source.value.charAt(source.position) == '`') {
            source.position += 1;
            buffer.append('`');
          } else {
            closed = true;
            break;
          }
        } else {
          buffer.append(ch);
        }
      }
      if (!closed) {
        source.position = start;
        throw new IllegalArgumentException("Unmatched quote at " + source);
      } else if (buffer.length() == 0) {
        throw new IllegalArgumentException("Empty quoted field name at " + source);
      }
      return buffer.toString();
    } else {
      while (source.position < source.length) {
        char ch = source.value.charAt(source.position);
        if (!Character.isLetterOrDigit(ch) && ch != '_') {
          break;
        }
        source.position += 1;
      }
      if (source.position == start) {
        throw new IllegalArgumentException("Missing name at " + source);
      }
      return source.value.substring(start, source.position);
    }
  }

  static void requireChar(ParserUtils.StringPosition source, char required) {
    if (source.position >= source.length ||