moved winix directories to winixdsubdirectory
git-svn-id: svn://ttmath.org/publicrep/winix/trunk@1028 e52654a7-88a9-db11-a3e9-0013d4bc506e
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405
winixd/templates/miscspace.cpp
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405
winixd/templates/miscspace.cpp
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/*
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* This file is a part of Winix
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* and is distributed under the 2-Clause 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) 2012-2014, 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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* 1. 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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* 2. 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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* 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 HOLDER 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 THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "templates.h"
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namespace Winix
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{
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namespace TemplatesFunctions
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{
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bool are_spaces_the_same(const std::vector<Ezc::Var> & params, const std::vector<std::wstring> & spaces)
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{
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// last value from params is the parameter name (not a space)
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if( spaces.size() + 1 != params.size() )
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return false;
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for(size_t i=0 ; i<spaces.size() ; ++i)
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if( spaces[i] != params[i].str )
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return false;
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return true;
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}
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void copy_space(const std::vector<Ezc::Var> & params, std::vector<std::wstring> & spaces)
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{
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if( !params.empty() )
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{
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spaces.resize(params.size() - 1);
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for(size_t i=0 ; i<params.size() - 1 ; ++i)
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spaces[i] = params[i].str;
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}
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else
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{
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spaces.clear();
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}
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}
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PT::Space * find_space(const std::vector<Ezc::Var> & params, PT::Space & space, size_t level = 0)
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{
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if( level + 1 < params.size() )
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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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if( space.spaces[i]->name == params[level].str )
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return find_space(params, *space.spaces[i], level+1);
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}
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// there is no such a space
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return 0;
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}
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else
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{
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return &space;
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}
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}
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struct SpaceInfo
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{
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bool inited;
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PT::Space * last_space;
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std::vector<std::wstring> spaces;
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SpaceInfo()
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{
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inited = false;
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last_space = 0;
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}
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};
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static std::map<PT::Space*, SpaceInfo> spaces_map;
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static size_t space_reqid = 0;
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void space_init(const std::vector<Ezc::Var> & params, PT::Space & space, SpaceInfo & space_info)
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{
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if( !space_info.inited || !are_spaces_the_same(params, space_info.spaces) )
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{
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space_info.inited = true;
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copy_space(params, space_info.spaces);
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space_info.last_space = find_space(params, space);
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}
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else
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{
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// !! temp
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//log << log1 << "taking space from the cache" << logend;
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}
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}
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void space_check_reqid()
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{
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if( space_reqid != cur->request->id )
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{
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space_reqid = cur->request->id;
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spaces_map.clear();
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}
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}
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void space(Info & i, PT::Space & space)
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{
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space_check_reqid();
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if( !i.params.empty() )
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{
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SpaceInfo & space_info = spaces_map[&space];
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space_init(i.params, space, space_info);
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if( space_info.last_space )
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{
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const std::wstring & param = i.params.back().str;
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const std::wstring * value = space_info.last_space->GetValue(param);
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if( value )
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i.out << *value;
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// else
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// log << log1 << "nie ma takiej wartosci" << logend; // only for testing
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// !! IMPROVE ME
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}
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}
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}
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void space_value_noescape(Info & i, PT::Space & space)
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{
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space_check_reqid();
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if( !i.params.empty() )
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{
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SpaceInfo & space_info = spaces_map[&space];
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space_init(i.params, space, space_info);
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if( space_info.last_space )
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{
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const std::wstring & param = i.params.back().str;
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const std::wstring * value = space_info.last_space->GetValue(param);
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if( value )
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i.out << R(*value);
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}
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}
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}
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/*
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stack item for [for] statement
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*/
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struct SpaceStackItem
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{
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// names of the spaces
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std::vector<std::wstring> spaces;
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// table of values
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std::vector<std::wstring> values;
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// an index to 'values' which is incremented every each [for]
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size_t value_index;
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SpaceStackItem()
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{
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value_index = 0;
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}
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};
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/*
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each Space has its own SpacesTabInfo struct
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*/
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struct SpacesTabInfo
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{
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// a stack for [for] statements
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std::vector<SpaceStackItem> stack_tab;
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// current item from 'stack_tab'
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size_t cur_stack;
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SpacesTabInfo()
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{
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cur_stack = 0;
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}
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};
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static std::map<PT::Space*, SpacesTabInfo> spaces_tab_info_map;
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static size_t spaces_tab_reqid = 0;
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bool spaces_tab_find_stack_item(std::vector<Ezc::Var> & params, SpacesTabInfo & spaces_tab_info)
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{
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bool found = false;
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spaces_tab_info.cur_stack = spaces_tab_info.stack_tab.size();
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for(size_t i=0 ; i<spaces_tab_info.stack_tab.size() ; ++i)
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{
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if( are_spaces_the_same(params, spaces_tab_info.stack_tab[i].spaces) )
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{
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spaces_tab_info.cur_stack = i;
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found = true;
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break;
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}
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}
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return found;
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}
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void spaces_tab_add_to_stack(std::vector<Ezc::Var> & params, PT::Space & space, SpacesTabInfo & spaces_tab_info)
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{
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if( !params.empty() )
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{
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// adding a new item at the end (with the default constructor)
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spaces_tab_info.stack_tab.resize(spaces_tab_info.stack_tab.size() + 1);
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spaces_tab_info.cur_stack = spaces_tab_info.stack_tab.size() - 1;
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SpaceStackItem & stack_item = spaces_tab_info.stack_tab.back();
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copy_space(params, stack_item.spaces);
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space.ListText(params.back().str, stack_item.values);
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stack_item.value_index = 0;
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}
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}
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void spaces_tab_check_reqid()
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{
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if( spaces_tab_reqid != cur->request->id )
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{
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spaces_tab_reqid = cur->request->id;
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spaces_tab_info_map.clear();
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}
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}
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void spaces_tab_init(std::vector<Ezc::Var> & params, PT::Space & space, SpacesTabInfo & spaces_tab_info)
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{
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PT::Space * child_space = find_space(params, space);
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if( child_space )
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{
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if( !spaces_tab_find_stack_item(params, spaces_tab_info) )
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{
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// add a new value to the stack
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spaces_tab_add_to_stack(params, *child_space, spaces_tab_info);
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}
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}
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else
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{
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// there is not such a space
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spaces_tab_info.cur_stack = spaces_tab_info.stack_tab.size();
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}
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}
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void spaces_tab(Info & i, PT::Space & space)
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{
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spaces_tab_check_reqid();
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if( !i.params.empty() )
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{
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SpacesTabInfo & spaces_tab_info = spaces_tab_info_map[&space];
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spaces_tab_init(i.params, space, spaces_tab_info);
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if( spaces_tab_info.cur_stack < spaces_tab_info.stack_tab.size() )
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{
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SpaceStackItem & stack_item = spaces_tab_info.stack_tab[spaces_tab_info.cur_stack];
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// !! CHECK ME there was a change in EZC lately
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// make sure this still is ok
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// i.iter is different for each [for] statement (implemented in EZC)
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// so we don't have to remember it in our stack
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// for each the same space we have only one item in the stack, e.g.
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// [for item_meta "space1" "space2" "value"]
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// [for item_meta "space1" "space2" "value"]
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// [end]
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// [end]
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// above two [for]s use the same item on our stack
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stack_item.value_index = i.iter;
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i.res = stack_item.value_index < stack_item.values.size();
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}
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}
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}
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void spaces_tab_value_print(HtmlTextStream & out, SpacesTabInfo & spaces_tab_info)
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{
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if( spaces_tab_info.cur_stack < spaces_tab_info.stack_tab.size() )
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{
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SpaceStackItem & stack_item = spaces_tab_info.stack_tab[spaces_tab_info.cur_stack];
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out << stack_item.values[stack_item.value_index];
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}
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}
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void spaces_tab_value(Info & i, PT::Space & space)
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{
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spaces_tab_check_reqid();
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SpacesTabInfo & spaces_tab_info = spaces_tab_info_map[&space];
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if( i.params.empty() )
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{
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// value from last [for ...] statement
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spaces_tab_value_print(i.out, spaces_tab_info);
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}
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else
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{
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size_t cur_stack_old = spaces_tab_info.cur_stack;
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if( spaces_tab_find_stack_item(i.params, spaces_tab_info) )
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spaces_tab_value_print(i.out, spaces_tab_info);
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spaces_tab_info.cur_stack = cur_stack_old;
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}
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}
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bool spaces_tab_has_next(SpacesTabInfo & spaces_tab_info)
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{
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if( spaces_tab_info.cur_stack < spaces_tab_info.stack_tab.size() )
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{
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SpaceStackItem & val = spaces_tab_info.stack_tab[spaces_tab_info.cur_stack];
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return val.value_index + 1 < val.values.size();
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}
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return false;
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}
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void spaces_tab_has_next(Info & i, PT::Space & space)
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{
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spaces_tab_check_reqid();
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SpacesTabInfo & spaces_tab_info = spaces_tab_info_map[&space];
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if( i.params.empty() )
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{
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// value from last [for ...] statement
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i.res = spaces_tab_has_next(spaces_tab_info);
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}
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else
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{
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size_t cur_stack_old = spaces_tab_info.cur_stack;
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if( spaces_tab_find_stack_item(i.params, spaces_tab_info) )
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i.res = spaces_tab_has_next(spaces_tab_info);
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spaces_tab_info.cur_stack = cur_stack_old;
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}
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}
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} // namespace TemplatesFunctions
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} // namespace Winix
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