src/dse_point.cpp

/*
  Licensed to the Apache Software Foundation (ASF) under one
  or more contributor license agreements.  See the NOTICE file
  distributed with this work for additional information
  regarding copyright ownership.  The ASF licenses this file
  to you 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.
*/

#include "dse.h"
#include "wkt.hpp"

#include <string.h>

#include "macros.hpp"

extern "C" {

CassError dse_point_from_wkt(const char* wkt, cass_double_t* x, cass_double_t* y) {
  return dse_point_from_wkt_n(wkt, SAFE_STRLEN(wkt), x, y);
}

CassError dse_point_from_wkt_n(const char* wkt, size_t wkt_length, cass_double_t* x,
                               cass_double_t* y) {
  WktLexer lexer(wkt, wkt_length);

  if (lexer.next_token() != WktLexer::TK_TYPE_POINT ||
      lexer.next_token() != WktLexer::TK_OPEN_PAREN || lexer.next_token() != WktLexer::TK_NUMBER) {
    return CASS_ERROR_LIB_BAD_PARAMS;
  }

  *x = lexer.number();

  if (lexer.next_token() != WktLexer::TK_NUMBER) {
    return CASS_ERROR_LIB_BAD_PARAMS;
  }

  *y = lexer.number();

  // Look for the closing paren
  if (lexer.next_token() != WktLexer::TK_CLOSE_PAREN) {
    return CASS_ERROR_LIB_BAD_PARAMS;
  }

  return CASS_OK;
}

} // extern "C"