Example #1
0
  /**
   * Parses the term passed in the parameter and returns a JIPTerm object that wraps the
   * corresponding prolog term.<br>
   * If the string passed in the parameter doesn't contains a valid prolog term it raises a
   * JIPSyntaxErrorException.
   *
   * @param strTerm Term to be parsed. If the term doesn't end with a "dot" one is appended to it.
   * @return a new JIPTerm object.
   * @exception com.ugos.jiprolog.engine.JIPSyntaxErrorException
   */
  public final JIPTerm parseTerm(String strTerm) throws JIPSyntaxErrorException {
    try {
      final byte[] btTerm = strTerm.getBytes(getEncoding());
      final ByteArrayInputStream is = new ByteArrayInputStream(btTerm);
      PrologParser parser =
          new PrologParser(
              new ParserReader(new PushbackLineNumberInputStream(is)),
              m_opManager,
              m_engine,
              "user");

      m_singletonVars = parser.getSingletonVariables();

      final PrologObject term = parser.parseNext();

      return JIPTerm.getJIPTerm(term);
    } catch (UnsupportedEncodingException ex) {
      throw new JIPRuntimeException(ex.getMessage());
    }
  }
Example #2
0
 private JIPTerm parseNextTerm() throws JIPSyntaxErrorException {
   final PrologObject term = m_parser.parseNext();
   if (term != null) return JIPTerm.getJIPTerm(term);
   else return null;
 }