/* JavaCCOptions:MULTI=true,NODE_USES_PARSER=true,VISITOR=false,TRACK_TOKENS=false,NODE_PREFIX=AST,NODE_EXTENDS=,NODE_FACTORY=,SUPPORT_CLASS_VISIBILITY_PUBLIC=true */

/*

* © Copyright FOCONIS AG, 2014

*

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at:

*

* http://www.apache.org/licenses/LICENSE-2.0

*

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or

* implied. See the License for the specific language governing

* permissions and limitations under the License.

*/

  DateTime dateValue = null;

  String image = null;

  public ASTValueDateOrKW(final AtFormulaParserImpl p, final int id) {

    super(p, id);

  }

  @Override

  public ValueHolder evaluate(final FormulaContext ctx) {

    if (dateValue != null)

      return ValueHolder.valueOf(dateValue);

    ValueHolder vh = ValueHolder.valueOf(image);

    vh.dataType = DataType.KEYWORD_STRING;

    return vh;

  }

  public void init(final String image) throws ParseException {

    String inner = image.substring(1, image.length() - 1); // remove first [ and last ]

    try {

      dateValue = parser.getFormatter().parseDate(inner);

    } catch (IllegalArgumentException e) {

      if (inner.contains(".") || inner.contains("/") || inner.contains("-") || // this MUST be a date

          inner.contains("\\") || inner.contains("\"") || inner.trim().isEmpty()) {

        throw new ParseException(parser, e.getMessage());

      }

    }

    this.image = image; // tried to parse. but this seems to be a Keyword

  }

  @Override

  protected void analyzeThis(final Set<String> readFields, final Set<String> modifiedFields, final Set<String> variables,

      final Set<String> functions) {

  }

}