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81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
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/********************************************************************\
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* kvp-frame.hpp -- Implements a key-value frame system *
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* Copyright (C) 2014 Aaron Laws *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 2 of *
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* the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License*
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* along with this program; if not, contact: *
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* *
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* Free Software Foundation Voice: +1-617-542-5942 *
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* 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652 *
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* Boston, MA 02110-1301, USA gnu@gnu.org *
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* *
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\********************************************************************/
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#ifndef GNC_KVP_FRAME_TYPE
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#define GNC_KVP_FRAME_TYPE
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#include "kvp-value.hpp"
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#include <map>
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#include <string>
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#include <vector>
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#include <cstring>
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class cstring_comparer
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{
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public:
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/* Returns true if one is less than two. */
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bool operator()(const char * one, const char * two) const
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{
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auto ret = std::strcmp(one, two) < 0;
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return ret;
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}
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};
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struct KvpFrameImpl
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{
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typedef std::map<const char *, KvpValueImpl *, cstring_comparer> map_type;
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public:
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KvpFrameImpl() noexcept {};
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/**
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* Performs a deep copy.
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*/
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KvpFrameImpl(const KvpFrameImpl &) noexcept;
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/**
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* Replaces the KvpValueImpl at the specified spot, and returns
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* the old KvpValueImpl which used to occupy the spot.
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*
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* If no KvpValueImpl was at the spot, nullptr is returned.
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*/
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KvpValueImpl * replace_nc(const char * key, KvpValueImpl * newvalue) noexcept;
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std::string to_string() const noexcept;
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std::vector<std::string> get_keys() const noexcept;
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KvpValueImpl * get_slot(const char * key) const noexcept;
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void for_each_slot(void (*proc)(const char *key, KvpValue *value, void * data), void *data) const noexcept;
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friend int compare(const KvpFrameImpl &, const KvpFrameImpl &) noexcept;
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private:
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map_type m_valuemap;
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};
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int compare (const KvpFrameImpl &, const KvpFrameImpl &) noexcept;
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int compare (const KvpFrameImpl *, const KvpFrameImpl *) noexcept;
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#endif
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