272 lines
6.3 KiB
C++
272 lines
6.3 KiB
C++
/*
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* This file is a part of PikoTools
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* and is distributed under the (new) BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2012-2017, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name Tomasz Sowa nor the names of contributors to this
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* project may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef headerfile_picotools_space_spacetojson
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#define headerfile_picotools_space_spacetojson
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#include <string>
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#include <vector>
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#include <set>
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#include "space.h"
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namespace PT
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{
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class SpaceToJSON
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{
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public:
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void Clear();
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void TreatAsTable(const wchar_t * space_name);
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void TreatAsTable(const std::wstring & space_name);
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void TreatAsNumeric(const wchar_t * name);
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void TreatAsNumeric(const std::wstring & name);
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void TreatAsBool(const wchar_t * name);
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void TreatAsBool(const std::wstring & name);
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template<class Stream>
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void Serialize(Space & space, Stream & out, bool use_indents = false);
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private:
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std::set<std::wstring> numeric, boolean, table;
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template<class Stream>
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void Serialize(Space & space, Stream & out, bool use_indents, int level,
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bool use_comma, bool treat_as_table, bool skip_name);
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template<class Stream>
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void SerializeTableMulti(Space & space, Stream & out, bool use_indents, int level, bool use_comma);
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template<class Stream, class StringType>
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void PrintToken(Stream & out, const StringType & str, bool check_specials = false);
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template<class Stream>
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void PrintLevel(Stream & out, bool use_indents, int level);
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bool IsNumeric(const std::wstring & name);
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bool IsBool(const std::wstring & name);
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bool IsTable(const std::wstring & name);
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};
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template<class Stream>
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void SpaceToJSON::PrintLevel(Stream & out, bool use_indents, int level)
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{
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if( use_indents )
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{
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for(int i=0 ; i<level ; ++i)
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out << ' ';
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}
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}
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template<class Stream, class StringType>
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void SpaceToJSON::PrintToken(Stream & out, const StringType & str, bool is_special)
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{
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if( !is_special )
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out << '\"';
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for(size_t i=0 ; i<str.size() ; ++i)
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{
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switch(str[i])
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{
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case 0: out << '\\'; out << '0'; break; // may to skip this character is better?
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case '\r': out << '\\'; out << 'r'; break;
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case '\n': out << '\\'; out << 'n'; break;
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case '\t': out << '\\'; out << 't'; break;
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case 0x08: out << '\\'; out << 'b'; break;
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case 0x0c: out << '\\'; out << 'f'; break;
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case '\\': out << '\\'; out << '\\'; break;
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//case '/': out << '\\'; out << '/'; break; // slash doesn't have to be escaped
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case '"': out << '\\'; out << '\"'; break;
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default:
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out << str[i];
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}
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}
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if( !is_special )
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out << '\"';
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}
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template<class Stream>
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void SpaceToJSON::SerializeTableMulti(Space & space, Stream & out, bool use_indents, int level, bool use_comma)
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{
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Space::Table::const_iterator i2;
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size_t v;
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size_t index = 0;
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bool is_special;
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if( use_comma && !space.table.empty() )
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{
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PrintLevel(out, use_indents, level);
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out << L",\n";
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}
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for(i2 = space.table.begin() ; i2 != space.table.end() ; ++i2, ++index)
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{
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is_special = IsNumeric(i2->first) || IsBool(i2->first);
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PrintLevel(out, use_indents, level);
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PrintToken(out, i2->first);
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out << L": ";
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if( i2->second.size() != 1 )
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out << '[';
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for(v = 0 ; v < i2->second.size() ; ++v)
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{
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if( v > 0 )
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PrintLevel(out, use_indents, level + i2->first.size() + 3);
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PrintToken(out, i2->second[v], is_special);
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if( v + 1 < i2->second.size() )
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out << L",\n";
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}
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if( i2->second.size() != 1 )
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out << ']';
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if( index + 1 < space.table.size() )
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out << ',';
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out << '\n';
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}
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}
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template<class Stream>
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void SpaceToJSON::Serialize(Space & space, Stream & out, bool use_indents, int level,
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bool use_comma, bool treat_as_table, bool skip_name)
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{
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if( use_comma )
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{
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PrintLevel(out, use_indents, level);
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out << L",\n";
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}
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PrintLevel(out, use_indents, level);
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if( !skip_name )
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{
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if( space.name.empty() )
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{
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out << L"\"empty\": ";
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}
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else
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{
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PrintToken(out, space.name);
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out << L": ";
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}
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}
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if( treat_as_table )
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out << L"[\n";
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else
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out << L"{\n";
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bool printed_something = false;
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if( !treat_as_table )
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{
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SerializeTableMulti(space, out, use_indents, level, false);
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if( !space.table.empty() )
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printed_something = true;
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}
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/*
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* !! IMPROVE ME when serializing a table
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* we can make a test whether a space is empty and has a name
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* in such a case put it as a string
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* this is the same way as the json parser works
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*
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*/
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for(size_t i=0 ; i<space.spaces.size() ; ++i)
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{
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bool next_skip_name = treat_as_table;
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bool next_is_table = IsTable(space.spaces[i]->name);
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Serialize(*space.spaces[i], out, use_indents, level+1, printed_something, next_is_table, next_skip_name);
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printed_something = true;
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}
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PrintLevel(out, use_indents, level);
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if( treat_as_table )
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out << L"]\n";
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else
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out << L"}\n";
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}
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template<class Stream>
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void SpaceToJSON::Serialize(Space & space, Stream & out, bool use_indents)
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{
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bool treat_as_table = IsTable(space.name);
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Serialize(space, out, use_indents, 0, false, treat_as_table, true);
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}
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} // namespace
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#endif
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