Method entity

basex-core/src/main/java/org/basex/query/QueryParser.java:4505–4546

Parses and converts entities. @param tb token builder @return true if an entity was found @throws QueryException query exception

(final TokenBuilder tb)

   * @throws QueryException query exception
   */
  private boolean entity(final TokenBuilder tb) throws QueryException {
    final int p = pos;
    final boolean entity = consume('&');
    if(entity) {
      if(consume('#')) {
        final int b = consume('x') ? 0x10 : 10;
        boolean ok = true;
        int n = 0;
        do {
          final int cp = current();
          final boolean m = digit(cp);
          final boolean h = b == 0x10 && (cp >= 'a' && cp <= 'f' || cp >= 'A' && cp <= 'F');
          if(!m && !h) entityError(p, INVENTITY_X);
          final long nn = n;
          n = n * b + (consume() & 0xF);
          if(n < nn) ok = false;
          if(!m) n += 9;
        } while(!consume(';'));
        if(!ok) entityError(p, INVCHARREF_X);
        if(!XMLToken.valid(n)) entityError(p, INVCHARREF_X);
        tb.add(n);
      } else {
        if(consume("lt")) {
          tb.add('<');
        } else if(consume("gt")) {
          tb.add('>');
        } else if(consume("amp")) {
          tb.add('&');
        } else if(consume("quot")) {
          tb.add('"');
        } else if(consume("apos")) {
          tb.add('\'');
        } else {
          entityError(p, INVENTITY_X);
        }
        if(!consume(';')) entityError(p, INVENTITY_X);
      }
    } else {
      tb.add(consume());
    }
    return entity;
  }

  /**
   * Raises an entity error.