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// -*- mode: c++; c-basic-offset:4 -*-
// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.
// Copyright (c) 2002,2003 OPeNDAP, Inc.
// Author: James Gallagher <jgallagher@opendap.org>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
// (c) COPYRIGHT URI/MIT 1995-1999
// Please read the full copyright statement in the file COPYRIGHT_URI.
//
// Authors:
// jhrg,jimg James Gallagher <jgallagher@gso.uri.edu>
// Interface for Str type.
//
// jhrg 9/7/94
#ifndef _str_h
#define _str_h 1
#include <string>
#include "BaseType.h"
#include "dods-limits.h"
namespace libdap {
// max_str_len should be large since we always send strings with length bytes
// as a prefix (so xdr_string will always know how much memory to malloc) but
// if deserialize gets confused and thinks a ctor (in particular) is a string
// xdr_string in turn will max_str_len if it cannot get a length byte. A long
// term solution is to fix libdap, but strings should not routinely be > 32k
// for the time being... jhrg 4/30/97
const unsigned int max_str_len = DODS_USHRT_MAX - 1;
/** @brief Holds character string data.
@see BaseType
@see Url
*/
class Str : public BaseType {
protected:
string d_buf;
public:
Str(const string &n);
Str(const string &n, const string &d);
virtual ~Str() {}
Str(const Str ©_from);
Str &operator=(const Str &rhs);
BaseType *ptr_duplicate() override;
unsigned int width(bool = false) const override { return sizeof(string); }
int64_t width_ll(bool = false) const override { return sizeof(string); }
// Return the length of the stored string or zero if no string has been
// stored in the instance's internal buffer.
int length() const override;
int64_t length_ll() const override;
// DAP2
bool serialize(ConstraintEvaluator &eval, DDS &dds, Marshaller &m, bool ce_eval = true) override;
bool deserialize(UnMarshaller &um, DDS *dds, bool reuse = false) override;
// DAP4
void compute_checksum(Crc32 &checksum) override;
void serialize(D4StreamMarshaller &m, DMR &dmr, /*ConstraintEvaluator &eval,*/ bool filter = false) override;
void deserialize(D4StreamUnMarshaller &um, DMR &dmr) override;
unsigned int val2buf(void *val, bool reuse = false) override;
unsigned int buf2val(void **val) override;
virtual bool set_value(const string &value);
virtual string value() const;
virtual string esc_string_variable_value(const string &s);
void print_val(FILE *out, string space = "", bool print_decl_p = true) override;
void print_val(ostream &out, string space = "", bool print_decl_p = true) override;
bool ops(BaseType *b, int op) override;
bool d4_ops(BaseType *b, int op) override;
void dump(ostream &strm) const override;
};
} // namespace libdap
#endif // _str_h
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