208 lines
4.4 KiB
C++
208 lines
4.4 KiB
C++
/*
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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) 2012-2021, 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 "timezones.h"
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#include "misc.h"
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#include "log.h"
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namespace Winix
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{
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TimeZones::TimeZones()
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{
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Clear();
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}
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void TimeZones::Clear()
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{
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zone_tab.clear();
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for(size_t i=0 ; i<zone_indices.size() ; ++i)
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zone_indices[i] = size_t(-1);
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}
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void TimeZones::SetTimeZoneMaxId(size_t max_id)
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{
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if( max_id > 1000 )
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{
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max_id = 1000;
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log << log1 << "TZ: time_zone_max_id is too big (changed to 1000)" << logend;
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}
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size_t old_size = zone_indices.size();
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zone_indices.resize(max_id + 1);
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for(size_t i=old_size ; i<zone_indices.size() ; ++i)
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zone_indices[i] = size_t(-1);
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}
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bool TimeZones::HasZone(size_t zone_id)
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{
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if( zone_id < zone_indices.size() )
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return zone_indices[zone_id] < zone_tab.size();
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return false;
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}
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TimeZone * TimeZones::GetZone(size_t zone_id)
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{
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if( zone_id < zone_indices.size() )
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{
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size_t index = zone_indices[zone_id];
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if( index < zone_tab.size() )
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return &zone_tab[index];
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}
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return 0;
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}
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TimeZone * TimeZones::GetZoneByIndex(size_t zone_index)
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{
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if( zone_index < zone_tab.size() )
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return &zone_tab[zone_index];
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return 0;
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}
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size_t TimeZones::Size() const
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{
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return zone_tab.size();
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}
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bool TimeZones::Empty() const
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{
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return zone_tab.empty();
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}
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void TimeZones::ParseZones()
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{
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pt::Space::TableType * timezones_table = temp_space.get_table(L"timezones");
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if( timezones_table )
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{
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for(pt::Space * zone : *timezones_table)
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{
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temp_zone.Clear();
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if( temp_zone.SetTz(*zone) )
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{
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if( !HasZone(temp_zone.id) )
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{
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if( temp_zone.id < zone_indices.size() )
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{
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zone_tab.push_back(temp_zone);
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zone_indices[temp_zone.id] = zone_tab.size() - 1;
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}
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else
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{
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log << log1 << "Tz: zone: " << temp_zone.name << " has too big id: "
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<< temp_zone.id << " (skipping)" << logend;
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}
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}
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else
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{
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log << log1 << "Tz: zone with id: " << temp_zone.id
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<< " already exists (skipping)" << logend;
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}
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}
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else
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{
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log << log1 << "System: problem with reading time zone info from time zone: "
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<< zone->to_wstr(L"name") << " (skipping) " << logend;
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}
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}
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}
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}
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// !! IMPROVE ME
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// in the future we do not have to read the whole file
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// just space by space (not implemented in Space at the moment)
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bool TimeZones::ReadTimeZones(const wchar_t * path)
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{
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zone_tab.clear();
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pt::SpaceParser::Status status = parser.parse_space_file(path, temp_space);
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if( status == pt::SpaceParser::ok )
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{
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ParseZones();
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log << log2 << "Tz: time zones loaded, there are " << zone_tab.size() << " zones" << logend;
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}
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else
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if( status == pt::SpaceParser::syntax_error )
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{
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log << log1 << "TZ: error in time zone file, line: " << parser.get_last_parsed_line() << logend;
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}
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else
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if( status == pt::SpaceParser::cant_open_file )
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{
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log << log1 << "TZ: I cannot open the time zone file: " << path << logend;
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}
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temp_space.clear();
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return status == pt::SpaceParser::ok;
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}
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bool TimeZones::ReadTimeZones(const std::wstring & path)
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{
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return ReadTimeZones(path.c_str());
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}
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} // namespace Winix
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