pcb_io_kicad_sexpr.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2012 CERN
 * Copyright (C) 1992-2024 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
// base64 code. Needed for PCB_REFERENCE_IMAGE
#define wxUSE_BASE64 1
#include <wx/base64.h>
#include <wx/dir.h>
#include <wx/ffile.h>
#include <wx/log.h>
#include <wx/msgdlg.h>
#include <wx/mstream.h>
 
#include <advanced_config.h>
#include <board.h>
#include <board_design_settings.h>
#include <callback_gal.h>
#include <confirm.h>
#include <convert_basic_shapes_to_polygon.h> // for enum RECT_CHAMFER_POSITIONS definition
#include <fmt/core.h>
#include <font/fontconfig.h>
#include <footprint.h>
#include <io/kicad/kicad_io_utils.h>
#include <kiface_base.h>
#include <layer_range.h>
#include <locale_io.h>
#include <macros.h>
#include <pad.h>
#include <pcb_dimension.h>
#include <pcb_generator.h>
#include <pcb_group.h>
#include <pcb_io/kicad_sexpr/pcb_io_kicad_sexpr.h>
#include <pcb_io/kicad_sexpr/pcb_io_kicad_sexpr_parser.h>
#include <pcb_reference_image.h>
#include <pcb_shape.h>
#include <pcb_table.h>
#include <pcb_tablecell.h>
#include <pcb_target.h>
#include <pcb_text.h>
#include <pcb_textbox.h>
#include <pcb_track.h>
#include <pcbnew_settings.h>
#include <pgm_base.h>
#include <progress_reporter.h>
#include <reporter.h>
#include <string_utils.h>
#include <trace_helpers.h>
#include <wildcards_and_files_ext.h>
#include <zone.h>
 
#include <build_version.h>
#include <filter_reader.h>
#include <ctl_flags.h>
 
 
using namespace PCB_KEYS_T;
 
 
FP_CACHE_ITEM::FP_CACHE_ITEM( FOOTPRINT* aFootprint, const WX_FILENAME& aFileName ) :
 m_filename( aFileName ),
 m_footprint( aFootprint )
{ }
 
 
FP_CACHE::FP_CACHE( PCB_IO_KICAD_SEXPR* aOwner, const wxString& aLibraryPath )
{
 m_owner = aOwner;
 m_lib_raw_path = aLibraryPath;
 m_lib_path.SetPath( aLibraryPath );
 m_cache_timestamp = 0;
 m_cache_dirty = true;
}
 
 
void FP_CACHE::Save( FOOTPRINT* aFootprint )
{
 m_cache_timestamp = 0;
 
 if( !m_lib_path.DirExists() && !m_lib_path.Mkdir() )
 {
 THROW_IO_ERROR( wxString::Format( _( "Cannot create footprint library '%s'." ),
 m_lib_raw_path ) );
 }
 
 if( !m_lib_path.IsDirWritable() )
 {
 THROW_IO_ERROR( wxString::Format( _( "Footprint library '%s' is read only." ),
 m_lib_raw_path ) );
 }
 
 for( FP_CACHE_FOOTPRINT_MAP::iterator it = m_footprints.begin(); it != m_footprints.end(); ++it )
 {
 if( aFootprint && aFootprint != it->second->GetFootprint() )
 continue;
 
 // If we've requested to embed the fonts in the footprint, do so.
 // Otherwise, clear the embedded fonts from the footprint. Embedded
 // fonts will be used if available
 if( aFootprint->GetAreFontsEmbedded() )
 aFootprint->EmbedFonts();
 else
 aFootprint->GetEmbeddedFiles()->ClearEmbeddedFonts();
 
 WX_FILENAME fn = it->second->GetFileName();
 
 wxString tempFileName =
#ifdef USE_TMP_FILE
 wxFileName::CreateTempFileName( fn.GetPath() );
#else
 fn.GetFullPath();
#endif
 // Allow file output stream to go out of scope to close the file stream before
 // renaming the file.
 {
 wxLogTrace( traceKicadPcbPlugin, wxT( "Creating temporary library file '%s'." ),
 tempFileName );
 
 PRETTIFIED_FILE_OUTPUTFORMATTER formatter( tempFileName );
 
 m_owner->SetOutputFormatter( &formatter );
 m_owner->Format( (BOARD_ITEM*) it->second->GetFootprint() );
 }
 
#ifdef USE_TMP_FILE
 wxRemove( fn.GetFullPath() ); // it is not an error if this does not exist
 
 // Even on Linux you can see an _intermittent_ error when calling wxRename(),
 // and it is fully inexplicable. See if this dodges the error.
 wxMilliSleep( 250L );
 
 // Preserve the permissions of the current file
 KIPLATFORM::IO::DuplicatePermissions( fn.GetFullPath(), tempFileName );
 
 if( !wxRenameFile( tempFileName, fn.GetFullPath() ) )
 {
 wxString msg = wxString::Format( _( "Cannot rename temporary file '%s' to '%s'" ),
 tempFileName,
 fn.GetFullPath() );
 THROW_IO_ERROR( msg );
 }
#endif
 m_cache_timestamp += fn.GetTimestamp();
 }
 
 m_cache_timestamp += m_lib_path.GetModificationTime().GetValue().GetValue();
 
 // If we've saved the full cache, we clear the dirty flag.
 if( !aFootprint )
 m_cache_dirty = false;
}
 
 
void FP_CACHE::Load()
{
 m_cache_dirty = false;
 m_cache_timestamp = 0;
 
 wxDir dir( m_lib_raw_path );
 
 if( !dir.IsOpened() )
 {
 wxString msg = wxString::Format( _( "Footprint library '%s' not found." ),
 m_lib_raw_path );
 THROW_IO_ERROR( msg );
 }
 
 wxString fullName;
 wxString fileSpec = wxT( "*." ) + wxString( FILEEXT::KiCadFootprintFileExtension );
 
 // wxFileName construction is egregiously slow. Construct it once and just swap out
 // the filename thereafter.
 WX_FILENAME fn( m_lib_raw_path, wxT( "dummyName" ) );
 
 if( dir.GetFirst( &fullName, fileSpec ) )
 {
 wxString cacheError;
 
 do
 {
 fn.SetFullName( fullName );
 
 // Queue I/O errors so only files that fail to parse don't get loaded.
 try
 {
 FILE_LINE_READER reader( fn.GetFullPath() );
 PCB_IO_KICAD_SEXPR_PARSER parser( &reader, nullptr, nullptr );
 
 FOOTPRINT* footprint = dynamic_cast<FOOTPRINT*>( parser.Parse() );
 wxString fpName = fn.GetName();
 
 if( !footprint )
 THROW_IO_ERROR( wxEmptyString ); // caught locally, just below...
 
 footprint->SetFPID( LIB_ID( wxEmptyString, fpName ) );
 m_footprints.insert( fpName, new FP_CACHE_ITEM( footprint, fn ) );
 }
 catch( const IO_ERROR& ioe )
 {
 if( !cacheError.IsEmpty() )
 cacheError += wxT( "\n\n" );
 
 cacheError += wxString::Format( _( "Unable to read file '%s'" ) + '\n',
 fn.GetFullPath() );
 cacheError += ioe.What();
 }
 } while( dir.GetNext( &fullName ) );
 
 m_cache_timestamp = GetTimestamp( m_lib_raw_path );
 
 if( !cacheError.IsEmpty() )
 THROW_IO_ERROR( cacheError );
 }
}
 
 
void FP_CACHE::Remove( const wxString& aFootprintName )
{
 FP_CACHE_FOOTPRINT_MAP::const_iterator it = m_footprints.find( aFootprintName );
 
 if( it == m_footprints.end() )
 {
 wxString msg = wxString::Format( _( "Library '%s' has no footprint '%s'." ),
 m_lib_raw_path,
 aFootprintName );
 THROW_IO_ERROR( msg );
 }
 
 // Remove the footprint from the cache and delete the footprint file from the library.
 wxString fullPath = it->second->GetFileName().GetFullPath();
 m_footprints.erase( aFootprintName );
 wxRemoveFile( fullPath );
}
 
 
bool FP_CACHE::IsPath( const wxString& aPath ) const
{
 return aPath == m_lib_raw_path;
}
 
 
void FP_CACHE::SetPath( const wxString& aPath )
{
 m_lib_raw_path = aPath;
 m_lib_path.SetPath( aPath );
 
 
 for( const auto& footprint : GetFootprints() )
 {
 footprint.second->SetFilePath( aPath );
 }
}
 
 
bool FP_CACHE::IsModified()
{
 m_cache_dirty = m_cache_dirty || GetTimestamp( m_lib_path.GetFullPath() ) != m_cache_timestamp;
 
 return m_cache_dirty;
}
 
 
long long FP_CACHE::GetTimestamp( const wxString& aLibPath )
{
 wxString fileSpec = wxT( "*." ) + wxString( FILEEXT::KiCadFootprintFileExtension );
 
 return TimestampDir( aLibPath, fileSpec );
}
 
 
bool PCB_IO_KICAD_SEXPR::CanReadBoard( const wxString& aFileName ) const
{
 if( !PCB_IO::CanReadBoard( aFileName ) )
 return false;
 
 try
 {
 FILE_LINE_READER reader( aFileName );
 PCB_IO_KICAD_SEXPR_PARSER parser( &reader, nullptr, m_queryUserCallback );
 
 return parser.IsValidBoardHeader();
 }
 catch( const IO_ERROR& )
 {
 }
 
 return false;
}
 
 
void PCB_IO_KICAD_SEXPR::SaveBoard( const wxString& aFileName, BOARD* aBoard,
 const std::map<std::string, UTF8>* aProperties )
{
 LOCALE_IO toggle; // toggles on, then off, the C locale.
 
 wxString sanityResult = aBoard->GroupsSanityCheck();
 
 if( sanityResult != wxEmptyString && m_queryUserCallback )
 {
 if( !m_queryUserCallback(
 _( "Internal Group Data Error" ), wxICON_ERROR,
 wxString::Format( _( "Please report this bug. Error validating group "
 "structure: %s\n\nSave anyway?" ), sanityResult ),
 _( "Save Anyway" ) ) )
 {
 return;
 }
 }
 
 init( aProperties );
 
 m_board = aBoard; // after init()
 
 // If the user wants fonts embedded, make sure that they are added to the board. Otherwise,
 // remove any fonts that were previously embedded.
 if( m_board->GetAreFontsEmbedded() )
 m_board->EmbedFonts();
 else
 m_board->GetEmbeddedFiles()->ClearEmbeddedFonts();
 
 // Prepare net mapping that assures that net codes saved in a file are consecutive integers
 m_mapping->SetBoard( aBoard );
 
 PRETTIFIED_FILE_OUTPUTFORMATTER formatter( aFileName );
 
 m_out = &formatter; // no ownership
 
 m_out->Print( 0, "(kicad_pcb (version %d) (generator \"pcbnew\") (generator_version \"%s\")\n",
 SEXPR_BOARD_FILE_VERSION, GetMajorMinorVersion().c_str().AsChar() );
 
 Format( aBoard, 1 );
 
 m_out->Print( 0, ")\n" );
 m_out->Finish();
 
 m_out = nullptr;
}
 
 
BOARD_ITEM* PCB_IO_KICAD_SEXPR::Parse( const wxString& aClipboardSourceInput )
{
 std::string input = TO_UTF8( aClipboardSourceInput );
 
 STRING_LINE_READER reader( input, wxT( "clipboard" ) );
 PCB_IO_KICAD_SEXPR_PARSER parser( &reader, nullptr, m_queryUserCallback );
 
 try
 {
 return parser.Parse();
 }
 catch( const PARSE_ERROR& parse_error )
 {
 if( parser.IsTooRecent() )
 throw FUTURE_FORMAT_ERROR( parse_error, parser.GetRequiredVersion() );
 else
 throw;
 }
}
 
 
void PCB_IO_KICAD_SEXPR::Format( const BOARD_ITEM* aItem, int aNestLevel ) const
{
 LOCALE_IO toggle; // public API function, perform anything convenient for caller
 
 switch( aItem->Type() )
 {
 case PCB_T:
 format( static_cast<const BOARD*>( aItem ), aNestLevel );
 break;
 
 case PCB_DIM_ALIGNED_T:
 case PCB_DIM_CENTER_T:
 case PCB_DIM_RADIAL_T:
 case PCB_DIM_ORTHOGONAL_T:
 case PCB_DIM_LEADER_T:
 format( static_cast<const PCB_DIMENSION_BASE*>( aItem ), aNestLevel );
 break;
 
 case PCB_SHAPE_T:
 format( static_cast<const PCB_SHAPE*>( aItem ), aNestLevel );
 break;
 
 case PCB_REFERENCE_IMAGE_T:
 format( static_cast<const PCB_REFERENCE_IMAGE*>( aItem ), aNestLevel );
 break;
 
 case PCB_TARGET_T:
 format( static_cast<const PCB_TARGET*>( aItem ), aNestLevel );
 break;
 
 case PCB_FOOTPRINT_T:
 format( static_cast<const FOOTPRINT*>( aItem ), aNestLevel );
 break;
 
 case PCB_PAD_T:
 format( static_cast<const PAD*>( aItem ), aNestLevel );
 break;
 
 case PCB_FIELD_T:
 // Handled in the footprint formatter when properties are formatted
 break;
 
 case PCB_TEXT_T:
 format( static_cast<const PCB_TEXT*>( aItem ), aNestLevel );
 break;
 
 case PCB_TEXTBOX_T:
 format( static_cast<const PCB_TEXTBOX*>( aItem ), aNestLevel );
 break;
 
 case PCB_TABLE_T:
 format( static_cast<const PCB_TABLE*>( aItem ), aNestLevel );
 break;
 
 case PCB_GROUP_T:
 format( static_cast<const PCB_GROUP*>( aItem ), aNestLevel );
 break;
 
 case PCB_GENERATOR_T:
 format( static_cast<const PCB_GENERATOR*>( aItem ), aNestLevel );
 break;
 
 case PCB_TRACE_T:
 case PCB_ARC_T:
 case PCB_VIA_T:
 format( static_cast<const PCB_TRACK*>( aItem ), aNestLevel );
 break;
 
 case PCB_ZONE_T:
 format( static_cast<const ZONE*>( aItem ), aNestLevel );
 break;
 
 default:
 wxFAIL_MSG( wxT( "Cannot format item " ) + aItem->GetClass() );
 }
}
 
 
std::string formatInternalUnits( int aValue )
{
 return EDA_UNIT_UTILS::FormatInternalUnits( pcbIUScale, aValue );
}
 
 
std::string formatInternalUnits( const VECTOR2I& aCoord )
{
 return EDA_UNIT_UTILS::FormatInternalUnits( pcbIUScale, aCoord );
}
 
 
std::string formatInternalUnits( const VECTOR2I& aCoord, const FOOTPRINT* aParentFP )
{
 if( aParentFP )
 {
 VECTOR2I coord = aCoord - aParentFP->GetPosition();
 RotatePoint( coord, -aParentFP->GetOrientation() );
 return formatInternalUnits( coord );
 }
 
 return formatInternalUnits( aCoord );
}
 
 
void PCB_IO_KICAD_SEXPR::formatLayer( PCB_LAYER_ID aLayer, bool aIsKnockout ) const
{
 m_out->Print( 0, " (layer %s%s)",
 m_out->Quotew( LSET::Name( aLayer ) ).c_str(),
 aIsKnockout ? " knockout" : "" );
}
 
 
void PCB_IO_KICAD_SEXPR::formatPolyPts( const SHAPE_LINE_CHAIN& outline, int aNestLevel,
 bool aCompact, const FOOTPRINT* aParentFP ) const
{
 m_out->Print( aNestLevel + 1, "(pts\n" );
 
 bool needNewline = false;
 int nestLevel = aNestLevel + 2;
 int shapesAdded = 0;
 
 for( int ii = 0; ii < outline.PointCount(); ++ii )
 {
 int ind = outline.ArcIndex( ii );
 
 if( ind < 0 )
 {
 m_out->Print( nestLevel, "(xy %s)",
 formatInternalUnits( outline.CPoint( ii ), aParentFP ).c_str() );
 needNewline = true;
 }
 else
 {
 const SHAPE_ARC& arc = outline.Arc( ind );
 m_out->Print( nestLevel, "(arc (start %s) (mid %s) (end %s))",
 formatInternalUnits( arc.GetP0(), aParentFP ).c_str(),
 formatInternalUnits( arc.GetArcMid(), aParentFP ).c_str(),
 formatInternalUnits( arc.GetP1(), aParentFP ).c_str() );
 needNewline = true;
 
 do
 {
 ++ii;
 } while( ii < outline.PointCount() && outline.ArcIndex( ii ) == ind );
 
 --ii;
 }
 
 ++shapesAdded;
 
 if( !( shapesAdded % 4 ) || !aCompact )
 {
 // newline every 4 shapes if compact save
 m_out->Print( 0, "\n" );
 needNewline = false;
 }
 }
 
 if( needNewline )
 m_out->Print( 0, "\n" );
 
 m_out->Print( aNestLevel + 1, ")\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::formatRenderCache( const EDA_TEXT* aText, int aNestLevel ) const
{
 wxString resolvedText( aText->GetShownText( true ) );
 std::vector<std::unique_ptr<KIFONT::GLYPH>>* cache = aText->GetRenderCache( aText->GetFont(),
 resolvedText );
 
 m_out->Print( aNestLevel, "(render_cache %s %s\n",
 m_out->Quotew( resolvedText ).c_str(),
 EDA_UNIT_UTILS::FormatAngle( aText->GetDrawRotation() ).c_str() );
 
 KIGFX::GAL_DISPLAY_OPTIONS empty_opts;
 
 CALLBACK_GAL callback_gal( empty_opts,
 // Polygon callback
 [&]( const SHAPE_LINE_CHAIN& aPoly )
 {
 m_out->Print( aNestLevel + 1, "(polygon\n" );
 formatPolyPts( aPoly, aNestLevel + 1, true );
 m_out->Print( aNestLevel + 1, ")\n" );
 } );
 
 callback_gal.SetLineWidth( aText->GetTextThickness() );
 callback_gal.DrawGlyphs( *cache );
 
 m_out->Print( aNestLevel, ")\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::formatSetup( const BOARD* aBoard, int aNestLevel ) const
{
 // Setup
 m_out->Print( aNestLevel, "(setup\n" );
 
 // Save the board physical stackup structure
 const BOARD_STACKUP& stackup = aBoard->GetDesignSettings().GetStackupDescriptor();
 
 if( aBoard->GetDesignSettings().m_HasStackup )
 stackup.FormatBoardStackup( m_out, aBoard, aNestLevel+1 );
 
 BOARD_DESIGN_SETTINGS& dsnSettings = aBoard->GetDesignSettings();
 
 m_out->Print( aNestLevel+1, "(pad_to_mask_clearance %s)\n",
 formatInternalUnits( dsnSettings.m_SolderMaskExpansion ).c_str() );
 
 if( dsnSettings.m_SolderMaskMinWidth )
 {
 m_out->Print( aNestLevel+1, "(solder_mask_min_width %s)\n",
 formatInternalUnits( dsnSettings.m_SolderMaskMinWidth ).c_str() );
 }
 
 if( dsnSettings.m_SolderPasteMargin != 0 )
 {
 m_out->Print( aNestLevel+1, "(pad_to_paste_clearance %s)\n",
 formatInternalUnits( dsnSettings.m_SolderPasteMargin ).c_str() );
 }
 
 if( dsnSettings.m_SolderPasteMarginRatio != 0 )
 {
 m_out->Print( aNestLevel+1, "(pad_to_paste_clearance_ratio %s)\n",
 FormatDouble2Str( dsnSettings.m_SolderPasteMarginRatio ).c_str() );
 }
 
 KICAD_FORMAT::FormatBool( m_out, aNestLevel + 1, "allow_soldermask_bridges_in_footprints",
 dsnSettings.m_AllowSoldermaskBridgesInFPs );
 
 m_out->Print( 0, " (tenting " );
 
 if( dsnSettings.m_TentViasFront || dsnSettings.m_TentViasBack )
 {
 if( dsnSettings.m_TentViasFront )
 m_out->Print( 0, "front " );
 if( dsnSettings.m_TentViasBack )
 m_out->Print( 0, "back " );
 
 m_out->Print( 0, ")" );
 }
 else
 {
 m_out->Print( 0, " none)" );
 }
 
 VECTOR2I origin = dsnSettings.GetAuxOrigin();
 
 if( origin != VECTOR2I( 0, 0 ) )
 {
 m_out->Print( aNestLevel+1, "(aux_axis_origin %s %s)\n",
 formatInternalUnits( origin.x ).c_str(),
 formatInternalUnits( origin.y ).c_str() );
 }
 
 origin = dsnSettings.GetGridOrigin();
 
 if( origin != VECTOR2I( 0, 0 ) )
 {
 m_out->Print( aNestLevel+1, "(grid_origin %s %s)\n",
 formatInternalUnits( origin.x ).c_str(),
 formatInternalUnits( origin.y ).c_str() );
 }
 
 aBoard->GetPlotOptions().Format( m_out, aNestLevel+1 );
 
 m_out->Print( aNestLevel, ")\n\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::formatGeneral( const BOARD* aBoard, int aNestLevel ) const
{
 const BOARD_DESIGN_SETTINGS& dsnSettings = aBoard->GetDesignSettings();
 
 m_out->Print( 0, "\n" );
 m_out->Print( aNestLevel, "(general\n" );
 
 m_out->Print( aNestLevel+1, "(thickness %s)\n",
 formatInternalUnits( dsnSettings.GetBoardThickness() ).c_str() );
 
 KICAD_FORMAT::FormatBool( m_out, aNestLevel + 1, "legacy_teardrops",
 aBoard->LegacyTeardrops() );
 
 m_out->Print( aNestLevel, ")\n\n" );
 
 aBoard->GetPageSettings().Format( m_out, aNestLevel, m_ctl );
 aBoard->GetTitleBlock().Format( m_out, aNestLevel, m_ctl );
}
 
 
void PCB_IO_KICAD_SEXPR::formatBoardLayers( const BOARD* aBoard, int aNestLevel ) const
{
 m_out->Print( aNestLevel, "(layers\n" );
 
 // Save only the used copper layers from front to back.
 
 for( PCB_LAYER_ID layer : aBoard->GetEnabledLayers().CuStack() )
 {
 
 m_out->Print( aNestLevel+1, "(%d %s %s",
 layer,
 m_out->Quotew( LSET::Name( layer ) ).c_str(),
 LAYER::ShowType( aBoard->GetLayerType( layer ) ) );
 
 if( LSET::Name( layer ) != m_board->GetLayerName( layer ) )
 m_out->Print( 0, " %s", m_out->Quotew( m_board->GetLayerName( layer ) ).c_str() );
 
 m_out->Print( 0, ")\n" );
 }
 
 // Save used non-copper layers in the order they are defined.
 LSEQ seq = aBoard->GetEnabledLayers().TechAndUserUIOrder();
 
 for( PCB_LAYER_ID layer : seq )
 {
 m_out->Print( aNestLevel+1, "(%d %s",
 layer,
 m_out->Quotew( LSET::Name( layer ) ).c_str() );
 
 if( layer >= User_1 && layer <= User_9 )
 m_out->Print( 0, " %s", LAYER::ShowType( aBoard->GetLayerType( layer ) ) );
 else
 m_out->Print( 0, " user" );
 
 if( m_board->GetLayerName( layer ) != LSET::Name( layer ) )
 m_out->Print( 0, " %s", m_out->Quotew( m_board->GetLayerName( layer ) ).c_str() );
 
 m_out->Print( 0, ")\n" );
 }
 
 m_out->Print( aNestLevel, ")\n\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::formatNetInformation( const BOARD* aBoard, int aNestLevel ) const
{
 for( NETINFO_ITEM* net : *m_mapping )
 {
 if( net == nullptr ) // Skip not actually existing nets (orphan nets)
 continue;
 
 m_out->Print( aNestLevel, "(net %d %s)\n",
 m_mapping->Translate( net->GetNetCode() ),
 m_out->Quotew( net->GetNetname() ).c_str() );
 }
 
 m_out->Print( 0, "\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::formatProperties( const BOARD* aBoard, int aNestLevel ) const
{
 for( const std::pair<const wxString, wxString>& prop : aBoard->GetProperties() )
 {
 m_out->Print( aNestLevel, "(property %s %s)\n",
 m_out->Quotew( prop.first ).c_str(),
 m_out->Quotew( prop.second ).c_str() );
 }
 
 if( !aBoard->GetProperties().empty() )
 m_out->Print( 0, "\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::formatHeader( const BOARD* aBoard, int aNestLevel ) const
{
 formatGeneral( aBoard, aNestLevel );
 
 // Layers list.
 formatBoardLayers( aBoard, aNestLevel );
 
 // Setup
 formatSetup( aBoard, aNestLevel );
 
 // Properties
 formatProperties( aBoard, aNestLevel );
 
 // Save net codes and names
 formatNetInformation( aBoard, aNestLevel );
}
 
 
bool isDefaultTeardropParameters( const TEARDROP_PARAMETERS& tdParams )
{
 static const TEARDROP_PARAMETERS defaults;
 
 return tdParams.m_Enabled == defaults.m_Enabled
 && tdParams.m_BestLengthRatio == defaults.m_BestLengthRatio
 && tdParams.m_TdMaxLen == defaults.m_TdMaxLen
 && tdParams.m_BestWidthRatio == defaults.m_BestWidthRatio
 && tdParams.m_TdMaxWidth == defaults.m_TdMaxWidth
 && tdParams.m_CurveSegCount == defaults.m_CurveSegCount
 && tdParams.m_WidthtoSizeFilterRatio == defaults.m_WidthtoSizeFilterRatio
 && tdParams.m_AllowUseTwoTracks == defaults.m_AllowUseTwoTracks
 && tdParams.m_TdOnPadsInZones == defaults.m_TdOnPadsInZones;
}
 
 
void PCB_IO_KICAD_SEXPR::formatTeardropParameters( const TEARDROP_PARAMETERS& tdParams,
 int aNestLevel ) const
{
 m_out->Print( aNestLevel, "(teardrops (best_length_ratio %s) (max_length %s) "
 "(best_width_ratio %s) (max_width %s) (curve_points %d) "
 "(filter_ratio %s)",
 FormatDouble2Str( tdParams.m_BestLengthRatio ).c_str(),
 formatInternalUnits( tdParams.m_TdMaxLen ).c_str(),
 FormatDouble2Str( tdParams.m_BestWidthRatio ).c_str(),
 formatInternalUnits( tdParams.m_TdMaxWidth ).c_str(),
 tdParams.m_CurveSegCount,
 FormatDouble2Str( tdParams.m_WidthtoSizeFilterRatio ).c_str() );
 
 KICAD_FORMAT::FormatBool( m_out, aNestLevel, "enabled", tdParams.m_Enabled );
 KICAD_FORMAT::FormatBool( m_out, aNestLevel, "allow_two_segments",
 tdParams.m_AllowUseTwoTracks );
 KICAD_FORMAT::FormatBool( m_out, aNestLevel, "prefer_zone_connections",
 !tdParams.m_TdOnPadsInZones );
 m_out->Print( aNestLevel, ")" );
}
 
 
void PCB_IO_KICAD_SEXPR::format( const BOARD* aBoard, int aNestLevel ) const
{
 std::set<BOARD_ITEM*, BOARD_ITEM::ptr_cmp> sorted_footprints( aBoard->Footprints().begin(),
 aBoard->Footprints().end() );
 std::set<BOARD_ITEM*, BOARD_ITEM::ptr_cmp> sorted_drawings( aBoard->Drawings().begin(),
 aBoard->Drawings().end() );
 std::set<PCB_TRACK*, PCB_TRACK::cmp_tracks> sorted_tracks( aBoard->Tracks().begin(),
 aBoard->Tracks().end() );
 std::set<BOARD_ITEM*, BOARD_ITEM::ptr_cmp> sorted_zones( aBoard->Zones().begin(),
 aBoard->Zones().end() );
 std::set<BOARD_ITEM*, BOARD_ITEM::ptr_cmp> sorted_groups( aBoard->Groups().begin(),
 aBoard->Groups().end() );
 std::set<BOARD_ITEM*, BOARD_ITEM::ptr_cmp> sorted_generators( aBoard->Generators().begin(),
 aBoard->Generators().end() );
 formatHeader( aBoard, aNestLevel );
 
 // Save the footprints.
 for( BOARD_ITEM* footprint : sorted_footprints )
 {
 Format( footprint, aNestLevel );
 m_out->Print( 0, "\n" );
 }
 
 // Save the graphical items on the board (not owned by a footprint)
 for( BOARD_ITEM* item : sorted_drawings )
 Format( item, aNestLevel );
 
 if( sorted_drawings.size() )
 m_out->Print( 0, "\n" );
 
 // Do not save PCB_MARKERs, they can be regenerated easily.
 
 // Save the tracks and vias.
 for( PCB_TRACK* track : sorted_tracks )
 Format( track, aNestLevel );
 
 if( sorted_tracks.size() )
 m_out->Print( 0, "\n" );
 
 // Save the polygon (which are the newer technology) zones.
 for( auto zone : sorted_zones )
 Format( zone, aNestLevel );
 
 // Save the groups
 for( BOARD_ITEM* group : sorted_groups )
 Format( group, aNestLevel );
 
 // Save the generators
 for( BOARD_ITEM* gen : sorted_generators )
 Format( gen, aNestLevel );
 
 // Save any embedded files
 // Consolidate the embedded models in footprints into a single map
 // to avoid duplicating the same model in the board file.
 EMBEDDED_FILES files_to_write;
 
 for( auto& file : aBoard->GetEmbeddedFiles()->EmbeddedFileMap() )
 files_to_write.AddFile( file.second );
 
 for( BOARD_ITEM* item : sorted_footprints )
 {
 FOOTPRINT* fp = static_cast<FOOTPRINT*>( item );
 
 for( auto& file : fp->GetEmbeddedFiles()->EmbeddedFileMap() )
 files_to_write.AddFile( file.second );
 }
 
 m_out->Print( aNestLevel + 1, "(embedded_fonts %s)\n",
 aBoard->GetEmbeddedFiles()->GetAreFontsEmbedded() ? "yes" : "no" );
 
 if( !files_to_write.IsEmpty() )
 files_to_write.WriteEmbeddedFiles( *m_out, aNestLevel + 1, ( m_ctl & CTL_FOR_BOARD ) );
 
 // Remove the files so that they are not freed in the DTOR
 files_to_write.ClearEmbeddedFiles( false );
}
 
 
void PCB_IO_KICAD_SEXPR::format( const PCB_DIMENSION_BASE* aDimension, int aNestLevel ) const
{
 const PCB_DIM_ALIGNED* aligned = dynamic_cast<const PCB_DIM_ALIGNED*>( aDimension );
 const PCB_DIM_ORTHOGONAL* ortho = dynamic_cast<const PCB_DIM_ORTHOGONAL*>( aDimension );
 const PCB_DIM_CENTER* center = dynamic_cast<const PCB_DIM_CENTER*>( aDimension );
 const PCB_DIM_RADIAL* radial = dynamic_cast<const PCB_DIM_RADIAL*>( aDimension );
 const PCB_DIM_LEADER* leader = dynamic_cast<const PCB_DIM_LEADER*>( aDimension );
 
 m_out->Print( aNestLevel, "(dimension" );
 
 if( ortho ) // must be tested before aligned, because ortho is derived from aligned
 // and aligned is not null
 m_out->Print( 0, " (type orthogonal)" );
 else if( aligned )
 m_out->Print( 0, " (type aligned)" );
 else if( leader )
 m_out->Print( 0, " (type leader)" );
 else if( center )
 m_out->Print( 0, " (type center)" );
 else if( radial )
 m_out->Print( 0, " (type radial)" );
 else
 wxFAIL_MSG( wxT( "Cannot format unknown dimension type!" ) );
 
 if( aDimension->IsLocked() )
 KICAD_FORMAT::FormatBool( m_out, aNestLevel + 1, "locked", aDimension->IsLocked() );
 
 formatLayer( aDimension->GetLayer() );
 
 KICAD_FORMAT::FormatUuid( m_out, aDimension->m_Uuid );
 
 m_out->Print( aNestLevel+1, "(pts (xy %s %s) (xy %s %s))\n",
 formatInternalUnits( aDimension->GetStart().x ).c_str(),
 formatInternalUnits( aDimension->GetStart().y ).c_str(),
 formatInternalUnits( aDimension->GetEnd().x ).c_str(),
 formatInternalUnits( aDimension->GetEnd().y ).c_str() );
 
 if( aligned )
 {
 m_out->Print( aNestLevel+1, "(height %s)\n",
 formatInternalUnits( aligned->GetHeight() ).c_str() );
 }
 
 if( radial )
 {
 m_out->Print( aNestLevel+1, "(leader_length %s)\n",
 formatInternalUnits( radial->GetLeaderLength() ).c_str() );
 }
 
 if( ortho )
 {
 m_out->Print( aNestLevel+1, "(orientation %d)\n",
 static_cast<int>( ortho->GetOrientation() ) );
 }
 
 if( !center )
 {
 m_out->Print( aNestLevel + 1, "(format (prefix %s) (suffix %s) (units %d) (units_format %d) (precision %d)",
 m_out->Quotew( aDimension->GetPrefix() ).c_str(),
 m_out->Quotew( aDimension->GetSuffix() ).c_str(),
 static_cast<int>( aDimension->GetUnitsMode() ),
 static_cast<int>( aDimension->GetUnitsFormat() ),
 static_cast<int>( aDimension->GetPrecision() ) );
 
 if( aDimension->GetOverrideTextEnabled() )
 {
 m_out->Print( 0, " (override_value %s)",
 m_out->Quotew( aDimension->GetOverrideText() ).c_str() );
 }
 
 if( aDimension->GetSuppressZeroes() )
 m_out->Print( 0, " suppress_zeroes" );
 
 m_out->Print( 0, ")\n" );
 }
 
 m_out->Print( aNestLevel+1, "(style (thickness %s) (arrow_length %s) (text_position_mode %d)",
 formatInternalUnits( aDimension->GetLineThickness() ).c_str(),
 formatInternalUnits( aDimension->GetArrowLength() ).c_str(),
 static_cast<int>( aDimension->GetTextPositionMode() ) );
 
 if( aligned )
 {
 m_out->Print( 0, " (extension_height %s)",
 formatInternalUnits( aligned->GetExtensionHeight() ).c_str() );
 }
 
 if( leader )
 m_out->Print( 0, " (text_frame %d)", static_cast<int>( leader->GetTextBorder() ) );
 
 m_out->Print( 0, " (extension_offset %s)",
 formatInternalUnits( aDimension->GetExtensionOffset() ).c_str() );
 
 if( aDimension->GetKeepTextAligned() )
 m_out->Print( 0, " keep_text_aligned" );
 
 m_out->Print( 0, ")\n" );
 
 // Write dimension text after all other options to be sure the
 // text options are known when reading the file
 if( !center )
 format( static_cast<const PCB_TEXT*>( aDimension ), aNestLevel + 1 );
 
 m_out->Print( aNestLevel, ")\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::format( const PCB_SHAPE* aShape, int aNestLevel ) const
{
 FOOTPRINT* parentFP = aShape->GetParentFootprint();
 std::string prefix = parentFP ? "fp" : "gr";
 
 switch( aShape->GetShape() )
 {
 case SHAPE_T::SEGMENT:
 m_out->Print( aNestLevel, "(%s_line (start %s) (end %s)\n",
 prefix.c_str(),
 formatInternalUnits( aShape->GetStart(), parentFP ).c_str(),
 formatInternalUnits( aShape->GetEnd(), parentFP ).c_str() );
 break;
 
 case SHAPE_T::RECTANGLE:
 m_out->Print( aNestLevel, "(%s_rect (start %s) (end %s)\n",
 prefix.c_str(),
 formatInternalUnits( aShape->GetStart(), parentFP ).c_str(),
 formatInternalUnits( aShape->GetEnd(), parentFP ).c_str() );
 break;
 
 case SHAPE_T::CIRCLE:
 m_out->Print( aNestLevel, "(%s_circle (center %s) (end %s)\n",
 prefix.c_str(),
 formatInternalUnits( aShape->GetStart(), parentFP ).c_str(),
 formatInternalUnits( aShape->GetEnd(), parentFP ).c_str() );
 break;
 
 case SHAPE_T::ARC:
 m_out->Print( aNestLevel, "(%s_arc (start %s) (mid %s) (end %s)\n",
 prefix.c_str(),
 formatInternalUnits( aShape->GetStart(), parentFP ).c_str(),
 formatInternalUnits( aShape->GetArcMid(), parentFP ).c_str(),
 formatInternalUnits( aShape->GetEnd(), parentFP ).c_str() );
 break;
 
 case SHAPE_T::POLY:
 if( aShape->IsPolyShapeValid() )
 {
 const SHAPE_POLY_SET& poly = aShape->GetPolyShape();
 const SHAPE_LINE_CHAIN& outline = poly.Outline( 0 );
 
 m_out->Print( aNestLevel, "(%s_poly\n", prefix.c_str() );
 formatPolyPts( outline, aNestLevel, ADVANCED_CFG::GetCfg().m_CompactSave, parentFP );
 }
 else
 {
 wxFAIL_MSG( wxT( "Cannot format invalid polygon." ) );
 return;
 }
 
 break;
 
 case SHAPE_T::BEZIER:
 m_out->Print( aNestLevel, "(%s_curve (pts (xy %s) (xy %s) (xy %s) (xy %s))\n",
 prefix.c_str(),
 formatInternalUnits( aShape->GetStart(), parentFP ).c_str(),
 formatInternalUnits( aShape->GetBezierC1(), parentFP ).c_str(),
 formatInternalUnits( aShape->GetBezierC2(), parentFP ).c_str(),
 formatInternalUnits( aShape->GetEnd(), parentFP ).c_str() );
 break;
 
 default:
 UNIMPLEMENTED_FOR( aShape->SHAPE_T_asString() );
 return;
 };
 
 if( aShape->IsLocked() )
 KICAD_FORMAT::FormatBool( m_out, aNestLevel + 1, "locked", aShape->IsLocked() );
 
 aShape->GetStroke().Format( m_out, pcbIUScale, aNestLevel + 1 );
 
 // The filled flag represents if a solid fill is present on circles, rectangles and polygons
 if( ( aShape->GetShape() == SHAPE_T::POLY )
 || ( aShape->GetShape() == SHAPE_T::RECTANGLE )
 || ( aShape->GetShape() == SHAPE_T::CIRCLE ) )
 {
 m_out->Print( 0, aShape->IsFilled() ? " (fill solid)" : " (fill none)" );
 }
 
 if( aShape->GetLayerSet().count() > 1 )
 formatLayers( aShape->GetLayerSet() );
 else
 formatLayer( aShape->GetLayer() );
 
 if( aShape->HasSolderMask()
 && aShape->GetLocalSolderMaskMargin().has_value()
 && IsExternalCopperLayer( aShape->GetLayer() ) )
 {
 m_out->Print( 0, " (solder_mask_margin %s)",
 formatInternalUnits( aShape->GetLocalSolderMaskMargin().value() ).c_str() );
 }
 
 if( aShape->GetNetCode() > 0 )
 m_out->Print( 0, " (net %d)", m_mapping->Translate( aShape->GetNetCode() ) );
 
 KICAD_FORMAT::FormatUuid( m_out, aShape->m_Uuid, 0 );
 
 m_out->Print( 0, ")\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::format( const PCB_REFERENCE_IMAGE* aBitmap, int aNestLevel ) const
{
 wxCHECK_RET( aBitmap != nullptr && m_out != nullptr, "" );
 
 const REFERENCE_IMAGE& refImage = aBitmap->GetReferenceImage();
 
 const wxImage* image = refImage.GetImage().GetImageData();
 
 wxCHECK_RET( image != nullptr, "wxImage* is NULL" );
 
 m_out->Print( aNestLevel, "(image (at %s %s)",
 formatInternalUnits( aBitmap->GetPosition().x ).c_str(),
 formatInternalUnits( aBitmap->GetPosition().y ).c_str() );
 
 formatLayer( aBitmap->GetLayer() );
 
 if( refImage.GetImageScale() != 1.0 )
 m_out->Print( 0, "(scale %g)", refImage.GetImageScale() );
 
 if( const bool locked = aBitmap->IsLocked() )
 KICAD_FORMAT::FormatBool( m_out, 0, "locked", locked );
 
 m_out->Print( aNestLevel + 1, "(data" );
 
 wxString out = wxBase64Encode( refImage.GetImage().GetImageDataBuffer() );
 
 // Apparently the MIME standard character width for base64 encoding is 76 (unconfirmed)
 // so use it in a vain attempt to be standard like.
#define MIME_BASE64_LENGTH 76
 
 size_t first = 0;
 
 while( first < out.Length() )
 {
 m_out->Print( 0, "\n" );
 m_out->Print( aNestLevel + 2, "\"%s\"", TO_UTF8( out( first, MIME_BASE64_LENGTH ) ) );
 first += MIME_BASE64_LENGTH;
 }
 
 m_out->Print( 0, "\n" );
 m_out->Print( aNestLevel + 1, ")\n" ); // Closes data token.
 
 KICAD_FORMAT::FormatUuid( m_out, aBitmap->m_Uuid, 0 );
 
 m_out->Print( aNestLevel, ")\n" ); // Closes image token.
}
 
 
void PCB_IO_KICAD_SEXPR::format( const PCB_TARGET* aTarget, int aNestLevel ) const
{
 m_out->Print( aNestLevel, "(target %s (at %s) (size %s)",
 ( aTarget->GetShape() ) ? "x" : "plus",
 formatInternalUnits( aTarget->GetPosition() ).c_str(),
 formatInternalUnits( aTarget->GetSize() ).c_str() );
 
 if( aTarget->GetWidth() != 0 )
 m_out->Print( 0, " (width %s)", formatInternalUnits( aTarget->GetWidth() ).c_str() );
 
 formatLayer( aTarget->GetLayer() );
 
 KICAD_FORMAT::FormatUuid( m_out, aTarget->m_Uuid, 0 );
 
 m_out->Print( 0, ")\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::format( const FOOTPRINT* aFootprint, int aNestLevel ) const
{
 if( !( m_ctl & CTL_OMIT_INITIAL_COMMENTS ) )
 {
 const wxArrayString* initial_comments = aFootprint->GetInitialComments();
 
 if( initial_comments )
 {
 for( unsigned i = 0; i < initial_comments->GetCount(); ++i )
 m_out->Print( aNestLevel, "%s\n", TO_UTF8( (*initial_comments)[i] ) );
 
 m_out->Print( 0, "\n" ); // improve readability?
 }
 }
 
 if( m_ctl & CTL_OMIT_LIBNAME )
 {
 m_out->Print( aNestLevel, "(footprint %s",
 m_out->Quotes( aFootprint->GetFPID().GetLibItemName() ).c_str() );
 }
 else
 {
 m_out->Print( aNestLevel, "(footprint %s",
 m_out->Quotes( aFootprint->GetFPID().Format() ).c_str() );
 }
 
 if( !( m_ctl & CTL_OMIT_FOOTPRINT_VERSION ) )
 m_out->Print( 0, " (version %d) (generator \"pcbnew\") (generator_version \"%s\")\n ",
 SEXPR_BOARD_FILE_VERSION, GetMajorMinorVersion().c_str().AsChar() );
 
 if( const bool locked = aFootprint->IsLocked() )
 {
 KICAD_FORMAT::FormatBool( m_out, 0, "locked", locked );
 }
 
 if( const bool placed = aFootprint->IsPlaced() )
 {
 KICAD_FORMAT::FormatBool( m_out, 0, "placed", placed );
 }
 
 formatLayer( aFootprint->GetLayer() );
 
 m_out->Print( 0, "\n" );
 
 if( !( m_ctl & CTL_OMIT_UUIDS ) )
 KICAD_FORMAT::FormatUuid( m_out, aFootprint->m_Uuid );
 
 if( !( m_ctl & CTL_OMIT_AT ) )
 {
 m_out->Print( aNestLevel+1, "(at %s", formatInternalUnits( aFootprint->GetPosition() ).c_str() );
 
 if( !aFootprint->GetOrientation().IsZero() )
 m_out->Print( 0, " %s", EDA_UNIT_UTILS::FormatAngle( aFootprint->GetOrientation() ).c_str() );
 
 m_out->Print( 0, ")\n" );
 }
 
 if( !aFootprint->GetLibDescription().IsEmpty() )
 {
 m_out->Print( aNestLevel + 1, "(descr %s)\n",
 m_out->Quotew( aFootprint->GetLibDescription() ).c_str() );
 }
 
 if( !aFootprint->GetKeywords().IsEmpty() )
 {
 m_out->Print( aNestLevel+1, "(tags %s)\n",
 m_out->Quotew( aFootprint->GetKeywords() ).c_str() );
 }
 
 for( const PCB_FIELD* field : aFootprint->GetFields() )
 {
 m_out->Print( aNestLevel + 1, "(property %s %s",
 m_out->Quotew( field->GetCanonicalName() ).c_str(),
 m_out->Quotew( field->GetText() ).c_str() );
 
 format( field, aNestLevel + 1 );
 
 m_out->Print( aNestLevel + 1, ")\n" );
 }
 
 if( const COMPONENT_CLASS* compClass = aFootprint->GetComponentClass() )
 {
 if( !compClass->IsEmpty() )
 {
 m_out->Print( aNestLevel + 1, "(component_classes\n" );
 
 for( const COMPONENT_CLASS* constituent : compClass->GetConstituentClasses() )
 {
 m_out->Print( aNestLevel + 2, "(class %s)\n",
 m_out->Quotew( constituent->GetFullName() ).c_str() );
 }
 
 m_out->Print( aNestLevel + 1, ")\n" );
 }
 }
 
 if( !aFootprint->GetFilters().empty() )
 {
 m_out->Print( aNestLevel + 1, "(property ki_fp_filters %s)\n",
 m_out->Quotew( aFootprint->GetFilters() ).c_str() );
 }
 
 if( !( m_ctl & CTL_OMIT_PATH ) && !aFootprint->GetPath().empty() )
 {
 m_out->Print( aNestLevel+1, "(path %s)\n",
 m_out->Quotew( aFootprint->GetPath().AsString() ).c_str() );
 }
 
 if( !aFootprint->GetSheetname().empty() )
 {
 m_out->Print( aNestLevel + 1, "(sheetname %s)\n",
 m_out->Quotew( aFootprint->GetSheetname() ).c_str() );
 }
 
 if( !aFootprint->GetSheetfile().empty() )
 {
 m_out->Print( aNestLevel + 1, "(sheetfile %s)\n",
 m_out->Quotew( aFootprint->GetSheetfile() ).c_str() );
 }
 
 if( aFootprint->GetLocalSolderMaskMargin().has_value() )
 {
 m_out->Print( aNestLevel+1, "(solder_mask_margin %s)\n",
 formatInternalUnits( aFootprint->GetLocalSolderMaskMargin().value() ).c_str() );
 }
 
 if( aFootprint->GetLocalSolderPasteMargin().has_value() )
 {
 m_out->Print( aNestLevel+1, "(solder_paste_margin %s)\n",
 formatInternalUnits( aFootprint->GetLocalSolderPasteMargin().value() ).c_str() );
 }
 
 if( aFootprint->GetLocalSolderPasteMarginRatio().has_value() )
 {
 m_out->Print( aNestLevel+1, "(solder_paste_margin_ratio %s)\n",
 FormatDouble2Str( aFootprint->GetLocalSolderPasteMarginRatio().value() ).c_str() );
 }
 
 if( aFootprint->GetLocalClearance().has_value() )
 {
 m_out->Print( aNestLevel+1, "(clearance %s)\n",
 formatInternalUnits( aFootprint->GetLocalClearance().value() ).c_str() );
 }
 
 if( aFootprint->GetLocalZoneConnection() != ZONE_CONNECTION::INHERITED )
 {
 m_out->Print( aNestLevel+1, "(zone_connect %d)\n",
 static_cast<int>( aFootprint->GetLocalZoneConnection() ) );
 }
 
 // Attributes
 if( aFootprint->GetAttributes() )
 {
 m_out->Print( aNestLevel+1, "(attr" );
 
 if( aFootprint->GetAttributes() & FP_SMD )
 m_out->Print( 0, " smd" );
 
 if( aFootprint->GetAttributes() & FP_THROUGH_HOLE )
 m_out->Print( 0, " through_hole" );
 
 if( aFootprint->GetAttributes() & FP_BOARD_ONLY )
 m_out->Print( 0, " board_only" );
 
 if( aFootprint->GetAttributes() & FP_EXCLUDE_FROM_POS_FILES )
 m_out->Print( 0, " exclude_from_pos_files" );
 
 if( aFootprint->GetAttributes() & FP_EXCLUDE_FROM_BOM )
 m_out->Print( 0, " exclude_from_bom" );
 
 if( aFootprint->GetAttributes() & FP_ALLOW_MISSING_COURTYARD )
 m_out->Print( 0, " allow_missing_courtyard" );
 
 if( aFootprint->GetAttributes() & FP_DNP )
 m_out->Print( 0, " dnp" );
 
 if( aFootprint->GetAttributes() & FP_ALLOW_SOLDERMASK_BRIDGES )
 m_out->Print( 0, " allow_soldermask_bridges" );
 
 m_out->Print( 0, ")\n" );
 }
 
 if( aFootprint->GetPrivateLayers().any() )
 {
 m_out->Print( aNestLevel+1, "(private_layers" );
 
 for( PCB_LAYER_ID layer : aFootprint->GetPrivateLayers().Seq() )
 {
 wxString canonicalName( LSET::Name( layer ) );
 m_out->Print( 0, " \"%s\"", canonicalName.ToStdString().c_str() );
 }
 
 m_out->Print( 0, ")\n" );
 }
 
 if( aFootprint->IsNetTie() )
 {
 m_out->Print( aNestLevel+1, "(net_tie_pad_groups" );
 
 for( const wxString& group : aFootprint->GetNetTiePadGroups() )
 m_out->Print( 0, " \"%s\"", EscapeString( group, CTX_QUOTED_STR ).ToStdString().c_str() );
 
 m_out->Print( 0, ")\n" );
 }
 
 Format( (BOARD_ITEM*) &aFootprint->Reference(), aNestLevel + 1 );
 Format( (BOARD_ITEM*) &aFootprint->Value(), aNestLevel + 1 );
 
 std::set<PAD*, FOOTPRINT::cmp_pads> sorted_pads( aFootprint->Pads().begin(),
 aFootprint->Pads().end() );
 std::set<BOARD_ITEM*, FOOTPRINT::cmp_drawings> sorted_drawings(
 aFootprint->GraphicalItems().begin(),
 aFootprint->GraphicalItems().end() );
 std::set<ZONE*, FOOTPRINT::cmp_zones> sorted_zones( aFootprint->Zones().begin(),
 aFootprint->Zones().end() );
 std::set<BOARD_ITEM*, PCB_GROUP::ptr_cmp> sorted_groups( aFootprint->Groups().begin(),
 aFootprint->Groups().end() );
 
 // Save drawing elements.
 
 for( BOARD_ITEM* gr : sorted_drawings )
 Format( gr, aNestLevel+1 );
 
 // Save pads.
 for( PAD* pad : sorted_pads )
 Format( pad, aNestLevel+1 );
 
 // Save zones.
 for( BOARD_ITEM* zone : sorted_zones )
 Format( zone, aNestLevel + 1 );
 
 // Save groups.
 for( BOARD_ITEM* group : sorted_groups )
 Format( group, aNestLevel + 1 );
 
 m_out->Print( aNestLevel + 1, "(embedded_fonts %s)\n",
 aFootprint->GetEmbeddedFiles()->GetAreFontsEmbedded() ? "yes" : "no" );
 
 if( !aFootprint->GetEmbeddedFiles()->IsEmpty() )
 {
 aFootprint->WriteEmbeddedFiles( *m_out, aNestLevel + 1, !( m_ctl & CTL_FOR_BOARD ) );
 }
 
 // Save 3D info.
 auto bs3D = aFootprint->Models().begin();
 auto es3D = aFootprint->Models().end();
 
 while( bs3D != es3D )
 {
 if( !bs3D->m_Filename.IsEmpty() )
 {
 m_out->Print( aNestLevel+1, "(model %s\n",
 m_out->Quotew( bs3D->m_Filename ).c_str() );
 
 if( !bs3D->m_Show )
 KICAD_FORMAT::FormatBool( m_out, aNestLevel + 1, "hide", !bs3D->m_Show );
 
 if( bs3D->m_Opacity != 1.0 )
 m_out->Print( aNestLevel+2, "(opacity %0.4f)", bs3D->m_Opacity );
 
 m_out->Print( aNestLevel+2, "(offset (xyz %s %s %s))\n",
 FormatDouble2Str( bs3D->m_Offset.x ).c_str(),
 FormatDouble2Str( bs3D->m_Offset.y ).c_str(),
 FormatDouble2Str( bs3D->m_Offset.z ).c_str() );
 
 m_out->Print( aNestLevel+2, "(scale (xyz %s %s %s))\n",
 FormatDouble2Str( bs3D->m_Scale.x ).c_str(),
 FormatDouble2Str( bs3D->m_Scale.y ).c_str(),
 FormatDouble2Str( bs3D->m_Scale.z ).c_str() );
 
 m_out->Print( aNestLevel+2, "(rotate (xyz %s %s %s))\n",
 FormatDouble2Str( bs3D->m_Rotation.x ).c_str(),
 FormatDouble2Str( bs3D->m_Rotation.y ).c_str(),
 FormatDouble2Str( bs3D->m_Rotation.z ).c_str() );
 
 m_out->Print( aNestLevel+1, ")\n" );
 }
 
 ++bs3D;
 }
 
 m_out->Print( aNestLevel, ")\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::formatLayers( LSET aLayerMask, int aNestLevel ) const
{
 std::string output;
 
 if( aNestLevel == 0 )
 output += ' ';
 
 output += "(layers";
 
 static const LSET cu_all( LSET::AllCuMask() );
 static const LSET fr_bk( { B_Cu, F_Cu } );
 static const LSET adhes( { B_Adhes, F_Adhes } );
 static const LSET paste( { B_Paste, F_Paste } );
 static const LSET silks( { B_SilkS, F_SilkS } );
 static const LSET mask( { B_Mask, F_Mask } );
 static const LSET crt_yd( { B_CrtYd, F_CrtYd } );
 static const LSET fab( { B_Fab, F_Fab } );
 
 LSET cu_mask = cu_all;
 
 // output copper layers first, then non copper
 
 if( ( aLayerMask & cu_mask ) == cu_mask )
 {
 output += ' ' + m_out->Quotew( "*.Cu" );
 aLayerMask &= ~cu_all; // clear bits, so they are not output again below
 }
 else if( ( aLayerMask & cu_mask ) == fr_bk )
 {
 output += ' ' + m_out->Quotew( "F&B.Cu" );
 aLayerMask &= ~fr_bk;
 }
 
 if( ( aLayerMask & adhes ) == adhes )
 {
 output += ' ' + m_out->Quotew( "*.Adhes" );
 aLayerMask &= ~adhes;
 }
 
 if( ( aLayerMask & paste ) == paste )
 {
 output += ' ' + m_out->Quotew( "*.Paste" );
 aLayerMask &= ~paste;
 }
 
 if( ( aLayerMask & silks ) == silks )
 {
 output += ' ' + m_out->Quotew( "*.SilkS" );
 aLayerMask &= ~silks;
 }
 
 if( ( aLayerMask & mask ) == mask )
 {
 output += ' ' + m_out->Quotew( "*.Mask" );
 aLayerMask &= ~mask;
 }
 
 if( ( aLayerMask & crt_yd ) == crt_yd )
 {
 output += ' ' + m_out->Quotew( "*.CrtYd" );
 aLayerMask &= ~crt_yd;
 }
 
 if( ( aLayerMask & fab ) == fab )
 {
 output += ' ' + m_out->Quotew( "*.Fab" );
 aLayerMask &= ~fab;
 }
 
 // output any individual layers not handled in wildcard combos above
 wxString layerName;
 
 for( int layer = 0; layer < PCB_LAYER_ID_COUNT; ++layer )
 {
 if( aLayerMask[layer] )
 {
 layerName = LSET::Name( PCB_LAYER_ID( layer ) );
 output += ' ';
 output += m_out->Quotew( layerName );
 }
 }
 
 m_out->Print( aNestLevel, "%s)", output.c_str() );
}
 
 
void PCB_IO_KICAD_SEXPR::format( const PAD* aPad, int aNestLevel ) const
{
 const BOARD* board = aPad->GetBoard();
 
 auto shapeName =
 [&]( PCB_LAYER_ID aLayer )
 {
 switch( aPad->GetShape( aLayer ) )
 {
 case PAD_SHAPE::CIRCLE: return "circle";
 case PAD_SHAPE::RECTANGLE: return "rect";
 case PAD_SHAPE::OVAL: return "oval";
 case PAD_SHAPE::TRAPEZOID: return "trapezoid";
 case PAD_SHAPE::CHAMFERED_RECT:
 case PAD_SHAPE::ROUNDRECT: return "roundrect";
 case PAD_SHAPE::CUSTOM: return "custom";
 
 default:
 THROW_IO_ERROR( wxString::Format( _( "unknown pad type: %d"),
 aPad->GetShape( aLayer ) ) );
 }
 };
 
 const char* type;
 
 switch( aPad->GetAttribute() )
 {
 case PAD_ATTRIB::PTH: type = "thru_hole"; break;
 case PAD_ATTRIB::SMD: type = "smd"; break;
 case PAD_ATTRIB::CONN: type = "connect"; break;
 case PAD_ATTRIB::NPTH: type = "np_thru_hole"; break;
 
 default:
 THROW_IO_ERROR( wxString::Format( wxT( "unknown pad attribute: %d" ),
 aPad->GetAttribute() ) );
 }
 
 const char* property = nullptr;
 
 switch( aPad->GetProperty() )
 {
 case PAD_PROP::NONE: break; // could be "none"
 case PAD_PROP::BGA: property = "pad_prop_bga"; break;
 case PAD_PROP::FIDUCIAL_GLBL: property = "pad_prop_fiducial_glob"; break;
 case PAD_PROP::FIDUCIAL_LOCAL: property = "pad_prop_fiducial_loc"; break;
 case PAD_PROP::TESTPOINT: property = "pad_prop_testpoint"; break;
 case PAD_PROP::HEATSINK: property = "pad_prop_heatsink"; break;
 case PAD_PROP::CASTELLATED: property = "pad_prop_castellated"; break;
 case PAD_PROP::MECHANICAL: property = "pad_prop_mechanical"; break;
 
 default:
 THROW_IO_ERROR( wxString::Format( wxT( "unknown pad property: %d" ),
 aPad->GetProperty() ) );
 }
 
 m_out->Print( aNestLevel, "(pad %s %s %s",
 m_out->Quotew( aPad->GetNumber() ).c_str(),
 type,
 shapeName( PADSTACK::ALL_LAYERS ) );
 
 m_out->Print( 0, " (at %s", formatInternalUnits( aPad->GetFPRelativePosition() ).c_str() );
 
 if( !aPad->GetOrientation().IsZero() )
 m_out->Print( 0, " %s", EDA_UNIT_UTILS::FormatAngle( aPad->GetOrientation() ).c_str() );
 
 m_out->Print( 0, ")" );
 
 m_out->Print( 0, " (size %s)", formatInternalUnits( aPad->GetSize( PADSTACK::ALL_LAYERS ) ).c_str() );
 
 if( aPad->GetDelta( PADSTACK::ALL_LAYERS ).x != 0
 || aPad->GetDelta( PADSTACK::ALL_LAYERS ).y != 0 )
 {
 m_out->Print( 0, " (rect_delta %s)",
 formatInternalUnits( aPad->GetDelta( PADSTACK::ALL_LAYERS ) ).c_str() );
 }
 
 VECTOR2I sz = aPad->GetDrillSize();
 VECTOR2I shapeoffset = aPad->GetOffset( PADSTACK::ALL_LAYERS );
 
 if( (sz.x > 0) || (sz.y > 0) ||
 (shapeoffset.x != 0) || (shapeoffset.y != 0) )
 {
 m_out->Print( 0, " (drill" );
 
 if( aPad->GetDrillShape() == PAD_DRILL_SHAPE::OBLONG )
 m_out->Print( 0, " oval" );
 
 if( sz.x > 0 )
 m_out->Print( 0, " %s", formatInternalUnits( sz.x ).c_str() );
 
 if( sz.y > 0 && sz.x != sz.y )
 m_out->Print( 0, " %s", formatInternalUnits( sz.y ).c_str() );
 
 // NOTE: Shape offest is a property of the copper shape, not of the drill, but this was put
 // in the file format under the drill section. So, it is left here to minimize file format
 // changes, but note that the other padstack layers (if present) will have an offset stored
 // separately.
 if( shapeoffset.x != 0 || shapeoffset.y != 0 )
 {
 m_out->Print( 0, " (offset %s)",
 formatInternalUnits( aPad->GetOffset( PADSTACK::ALL_LAYERS ) ).c_str() );
 }
 
 m_out->Print( 0, ")" );
 }
 
 // Add pad property, if exists.
 if( property )
 m_out->Print( 0, " (property %s)", property );
 
 formatLayers( aPad->GetLayerSet() );
 
 if( aPad->GetAttribute() == PAD_ATTRIB::PTH )
 {
 KICAD_FORMAT::FormatBool( m_out, 0, "remove_unused_layers", aPad->GetRemoveUnconnected() );
 
 if( aPad->GetRemoveUnconnected() )
 {
 KICAD_FORMAT::FormatBool( m_out, 0, "keep_end_layers", aPad->GetKeepTopBottom() );
 
 if( board ) // Will be nullptr in footprint library
 {
 m_out->Print( 0, " (zone_layer_connections" );
 
 for( PCB_LAYER_ID layer : board->GetEnabledLayers().CuStack() )
 {
 if( aPad->GetZoneLayerOverride( layer ) == ZLO_FORCE_FLASHED )
 m_out->Print( 0, " %s", m_out->Quotew( LSET::Name( layer ) ).c_str() );
 }
 
 m_out->Print( 0, ")" );
 }
 }
 }
 
 auto formatCornerProperties =
 [&]( PCB_LAYER_ID aLayer )
 {
 // Output the radius ratio for rounded and chamfered rect pads
 if( aPad->GetShape( aLayer ) == PAD_SHAPE::ROUNDRECT
 || aPad->GetShape( aLayer ) == PAD_SHAPE::CHAMFERED_RECT)
 {
 m_out->Print( 0, " (roundrect_rratio %s)",
 FormatDouble2Str( aPad->GetRoundRectRadiusRatio( aLayer ) ).c_str() );
 }
 
 // Output the chamfer corners for chamfered rect pads
 if( aPad->GetShape( aLayer ) == PAD_SHAPE::CHAMFERED_RECT)
 {
 m_out->Print( 0, "\n" );
 
 m_out->Print( aNestLevel+1, "(chamfer_ratio %s)",
 FormatDouble2Str( aPad->GetChamferRectRatio( aLayer ) ).c_str() );
 
 m_out->Print( 0, " (chamfer" );
 
 if( ( aPad->GetChamferPositions( aLayer ) & RECT_CHAMFER_TOP_LEFT ) )
 m_out->Print( 0, " top_left" );
 
 if( ( aPad->GetChamferPositions( aLayer ) & RECT_CHAMFER_TOP_RIGHT ) )
 m_out->Print( 0, " top_right" );
 
 if( ( aPad->GetChamferPositions( aLayer ) & RECT_CHAMFER_BOTTOM_LEFT ) )
 m_out->Print( 0, " bottom_left" );
 
 if( ( aPad->GetChamferPositions( aLayer ) & RECT_CHAMFER_BOTTOM_RIGHT ) )
 m_out->Print( 0, " bottom_right" );
 
 m_out->Print( 0, ")" );
 }
 
 };
 
 // For normal padstacks, this is the one and only set of properties. For complex ones, this
 // will represent the front layer properties, and other layers will be formatted below
 formatCornerProperties( PADSTACK::ALL_LAYERS );
 
 std::string output;
 
 // Unconnected pad is default net so don't save it.
 if( !( m_ctl & CTL_OMIT_PAD_NETS ) && aPad->GetNetCode() != NETINFO_LIST::UNCONNECTED )
 {
 StrPrintf( &output, " (net %d %s)", m_mapping->Translate( aPad->GetNetCode() ),
 m_out->Quotew( aPad->GetNetname() ).c_str() );
 }
 
 // Pin functions and types are closely related to nets, so if CTL_OMIT_NETS is set, omit
 // them as well (for instance when saved from library editor).
 if( !( m_ctl & CTL_OMIT_PAD_NETS ) )
 {
 if( !aPad->GetPinFunction().IsEmpty() )
 {
 StrPrintf( &output, " (pinfunction %s)",
 m_out->Quotew( aPad->GetPinFunction() ).c_str() );
 }
 
 if( !aPad->GetPinType().IsEmpty() )
 {
 StrPrintf( &output, " (pintype %s)",
 m_out->Quotew( aPad->GetPinType() ).c_str() );
 }
 }
 
 if( aPad->GetPadToDieLength() != 0 )
 {
 StrPrintf( &output, " (die_length %s)",
 formatInternalUnits( aPad->GetPadToDieLength() ).c_str() );
 }
 
 if( aPad->GetLocalSolderMaskMargin().has_value() )
 {
 StrPrintf( &output, " (solder_mask_margin %s)",
 formatInternalUnits( aPad->GetLocalSolderMaskMargin().value() ).c_str() );
 }
 
 if( aPad->GetLocalSolderPasteMargin().has_value() )
 {
 StrPrintf( &output, " (solder_paste_margin %s)",
 formatInternalUnits( aPad->GetLocalSolderPasteMargin().value() ).c_str() );
 }
 
 if( aPad->GetLocalSolderPasteMarginRatio().has_value() )
 {
 StrPrintf( &output, " (solder_paste_margin_ratio %s)",
 FormatDouble2Str( aPad->GetLocalSolderPasteMarginRatio().value() ).c_str() );
 }
 
 if( aPad->GetLocalClearance().has_value() )
 {
 StrPrintf( &output, " (clearance %s)",
 formatInternalUnits( aPad->GetLocalClearance().value() ).c_str() );
 }
 
 if( aPad->GetLocalZoneConnection() != ZONE_CONNECTION::INHERITED )
 {
 StrPrintf( &output, " (zone_connect %d)",
 static_cast<int>( aPad->GetLocalZoneConnection() ) );
 }
 
 if( aPad->GetThermalSpokeWidth() != 0 )
 {
 StrPrintf( &output, " (thermal_bridge_width %s)",
 formatInternalUnits( aPad->GetThermalSpokeWidth() ).c_str() );
 }
 
 EDA_ANGLE defaultThermalSpokeAngle = ANGLE_90;
 
 if( aPad->GetShape( PADSTACK::ALL_LAYERS ) == PAD_SHAPE::CIRCLE ||
 ( aPad->GetShape( PADSTACK::ALL_LAYERS ) == PAD_SHAPE::CUSTOM
 && aPad->GetAnchorPadShape( PADSTACK::ALL_LAYERS ) == PAD_SHAPE::CIRCLE ) )
 {
 defaultThermalSpokeAngle = ANGLE_45;
 }
 
 if( aPad->GetThermalSpokeAngle() != defaultThermalSpokeAngle )
 {
 StrPrintf( &output, " (thermal_bridge_angle %s)",
 EDA_UNIT_UTILS::FormatAngle( aPad->GetThermalSpokeAngle() ).c_str() );
 }
 
 if( aPad->GetThermalGap() != 0 )
 {
 StrPrintf( &output, " (thermal_gap %s)",
 formatInternalUnits( aPad->GetThermalGap() ).c_str() );
 }
 
 if( output.size() )
 {
 m_out->Print( 0, "\n" );
 m_out->Print( aNestLevel+1, "%s", output.c_str()+1 ); // +1 skips 1st space on 1st element
 }
 
 auto anchorShape =
 [&]( PCB_LAYER_ID aLayer )
 {
 switch( aPad->GetAnchorPadShape( aLayer ) )
 {
 case PAD_SHAPE::RECTANGLE: return "rect";
 default:
 case PAD_SHAPE::CIRCLE: return "circle";
 }
 };
 
 auto formatPrimitives =
 [&]( PCB_LAYER_ID aLayer )
 {
 m_out->Print( aNestLevel+1, "(primitives" );
 
 int nested_level = aNestLevel+2;
 
 // Output all basic shapes
 for( const std::shared_ptr<PCB_SHAPE>& primitive : aPad->GetPrimitives( aLayer ) )
 {
 m_out->Print( 0, "\n");
 
 switch( primitive->GetShape() )
 {
 case SHAPE_T::SEGMENT:
 if( primitive->IsProxyItem() )
 {
 m_out->Print( nested_level, "(gr_vector (start %s) (end %s)",
 formatInternalUnits( primitive->GetStart() ).c_str(),
 formatInternalUnits( primitive->GetEnd() ).c_str() );
 }
 else
 {
 m_out->Print( nested_level, "(gr_line (start %s) (end %s)",
 formatInternalUnits( primitive->GetStart() ).c_str(),
 formatInternalUnits( primitive->GetEnd() ).c_str() );
 }
 break;
 
 case SHAPE_T::RECTANGLE:
 if( primitive->IsProxyItem() )
 {
 m_out->Print( nested_level, "(gr_bbox (start %s) (end %s)",
 formatInternalUnits( primitive->GetStart() ).c_str(),
 formatInternalUnits( primitive->GetEnd() ).c_str() );
 }
 else
 {
 m_out->Print( nested_level, "(gr_rect (start %s) (end %s)",
 formatInternalUnits( primitive->GetStart() ).c_str(),
 formatInternalUnits( primitive->GetEnd() ).c_str() );
 }
 break;
 
 case SHAPE_T::ARC:
 m_out->Print( nested_level, "(gr_arc (start %s) (mid %s) (end %s)",
 formatInternalUnits( primitive->GetStart() ).c_str(),
 formatInternalUnits( primitive->GetArcMid() ).c_str(),
 formatInternalUnits( primitive->GetEnd() ).c_str() );
 break;
 
 case SHAPE_T::CIRCLE:
 m_out->Print( nested_level, "(gr_circle (center %s) (end %s)",
 formatInternalUnits( primitive->GetStart() ).c_str(),
 formatInternalUnits( primitive->GetEnd() ).c_str() );
 break;
 
 case SHAPE_T::BEZIER:
 m_out->Print( nested_level, "(gr_curve (pts (xy %s) (xy %s) (xy %s) (xy %s))",
 formatInternalUnits( primitive->GetStart() ).c_str(),
 formatInternalUnits( primitive->GetBezierC1() ).c_str(),
 formatInternalUnits( primitive->GetBezierC2() ).c_str(),
 formatInternalUnits( primitive->GetEnd() ).c_str() );
 break;
 
 case SHAPE_T::POLY:
 if( primitive->IsPolyShapeValid() )
 {
 const SHAPE_POLY_SET& poly = primitive->GetPolyShape();
 const SHAPE_LINE_CHAIN& outline = poly.Outline( 0 );
 
 m_out->Print( nested_level, "(gr_poly\n" );
 formatPolyPts( outline, nested_level, ADVANCED_CFG::GetCfg().m_CompactSave );
 
 // Align the next info at the right place.
 m_out->Print( nested_level, " " );
 }
 break;
 
 default:
 break;
 }
 
 if( !primitive->IsProxyItem() )
 m_out->Print( 0, " (width %s)", formatInternalUnits( primitive->GetWidth() ).c_str() );
 
 // The filled flag represents if a solid fill is present on circles,
 // rectangles and polygons
 if( ( primitive->GetShape() == SHAPE_T::POLY )
 || ( primitive->GetShape() == SHAPE_T::RECTANGLE )
 || ( primitive->GetShape() == SHAPE_T::CIRCLE ) )
 {
 KICAD_FORMAT::FormatBool( m_out, 0, "fill", primitive->IsFilled() );
 }
 
 m_out->Print( 0, ")" );
 }
 
 m_out->Print( 0, "\n" );
 m_out->Print( aNestLevel+1, ")" ); // end of (primitives
 };
 
 if( aPad->GetShape( PADSTACK::ALL_LAYERS ) == PAD_SHAPE::CUSTOM )
 {
 m_out->Print( 0, "\n");
 m_out->Print( aNestLevel+1, "(options" );
 
 if( aPad->GetCustomShapeInZoneOpt() == PADSTACK::CUSTOM_SHAPE_ZONE_MODE::CONVEXHULL )
 m_out->Print( 0, " (clearance convexhull)" );
 #if 1 // Set to 1 to output the default option
 else
 m_out->Print( 0, " (clearance outline)" );
 #endif
 
 // Output the anchor pad shape (circle/rect)
 m_out->Print( 0, " (anchor %s)", anchorShape( PADSTACK::ALL_LAYERS ) );
 
 m_out->Print( 0, ")"); // end of (options ...
 
 // Output graphic primitive of the pad shape
 m_out->Print( 0, "\n");
 formatPrimitives( PADSTACK::ALL_LAYERS );
 }
 
 if( !isDefaultTeardropParameters( aPad->GetTeardropParams() ) )
 {
 m_out->Print( 0, "\n" );
 formatTeardropParameters( aPad->GetTeardropParams(), aNestLevel+1 );
 }
 
 formatTenting( aPad->Padstack() );
 
 m_out->Print( 0, "\n" );
 
 // TODO: Refactor so that we call formatPadLayer( ALL_LAYERS ) above instead of redundant code
 auto formatPadLayer =
 [&]( PCB_LAYER_ID aLayer )
 {
 const PADSTACK& padstack = aPad->Padstack();
 
 m_out->Print( 0, " (shape %s)", shapeName( aLayer ) );
 
 m_out->Print( 0, " (size %s)",
 formatInternalUnits( aPad->GetSize( aLayer ) ).c_str() );
 
 const VECTOR2I& delta = aPad->GetDelta( aLayer );
 
 if( delta.x != 0 || delta.y != 0 )
 m_out->Print( 0, " (rect_delta %s)", formatInternalUnits( delta ).c_str() );
 
 shapeoffset = aPad->GetOffset( aLayer );
 
 if( shapeoffset.x != 0 || shapeoffset.y != 0 )
 m_out->Print( 0, " (offset %s)", formatInternalUnits( shapeoffset ).c_str() );
 
 formatCornerProperties( aLayer );
 
 if( aPad->GetShape( aLayer ) == PAD_SHAPE::CUSTOM )
 {
 m_out->Print( aNestLevel + 1, "(options" );
 
 // Output the anchor pad shape (circle/rect)
 m_out->Print( 0, " (anchor %s)", anchorShape( aLayer ) );
 
 m_out->Print( 0, ")" ); // end of (options ...
 
 // Output graphic primitive of the pad shape
 formatPrimitives( aLayer );
 }
 
 EDA_ANGLE defaultLayerAngle = ANGLE_90;
 
 if( aPad->GetShape( aLayer ) == PAD_SHAPE::CIRCLE ||
 ( aPad->GetShape( aLayer ) == PAD_SHAPE::CUSTOM
 && aPad->GetAnchorPadShape( aLayer ) == PAD_SHAPE::CIRCLE ) )
 {
 defaultLayerAngle = ANGLE_45;
 }
 
 EDA_ANGLE layerSpokeAngle = padstack.ThermalSpokeAngle( aLayer );
 
 if( layerSpokeAngle != defaultLayerAngle )
 {
 StrPrintf( &output, " (thermal_bridge_angle %s)",
 EDA_UNIT_UTILS::FormatAngle( layerSpokeAngle ).c_str() );
 }
 
 if( padstack.ThermalGap( aLayer ).has_value() )
 {
 StrPrintf( &output, " (thermal_gap %s)",
 formatInternalUnits( *padstack.ThermalGap( aLayer ) ).c_str() );
 }
 
 if( padstack.ThermalSpokeWidth( aLayer ).has_value() )
 {
 StrPrintf( &output, " (thermal_bridge_width %s)",
 formatInternalUnits( *padstack.ThermalSpokeWidth( aLayer ) ).c_str() );
 }
 
 if( padstack.Clearance( aLayer ).has_value() )
 {
 StrPrintf( &output, " (clearance %s)",
 formatInternalUnits( *padstack.Clearance( aLayer ) ).c_str() );
 }
 
 if( padstack.ZoneConnection( aLayer ).has_value() )
 {
 StrPrintf( &output, " (zone_connect %d)",
 static_cast<int>( *padstack.ZoneConnection( aLayer ) ) );
 }
 };
 
 
 if( aPad->Padstack().Mode() != PADSTACK::MODE::NORMAL )
 {
 std::string mode =
 aPad->Padstack().Mode() == PADSTACK::MODE::CUSTOM ? "custom" : "front_inner_back";
 m_out->Print( 0, "(padstack (mode %s)", mode.c_str() );
 
 if( aPad->Padstack().Mode() == PADSTACK::MODE::FRONT_INNER_BACK )
 {
 m_out->Print( 0, "(layer \"Inner\"" );
 formatPadLayer( PADSTACK::INNER_LAYERS );
 m_out->Print( 0, ")(layer \"B.Cu\"" );
 formatPadLayer( B_Cu );
 m_out->Print( 0, ")" );
 }
 else
 {
 for( PCB_LAYER_ID layer : LAYER_RANGE( F_Cu, B_Cu, board->GetCopperLayerCount() ) )
 {
 if( layer == F_Cu )
 continue;
 
 m_out->Print( 0, "(layer %s", m_out->Quotew( LSET::Name( layer ) ).c_str() );
 formatPadLayer( layer );
 m_out->Print( 0, ")" );
 }
 }
 
 m_out->Print( 0, ")" );
 }
 
 KICAD_FORMAT::FormatUuid( m_out, aPad->m_Uuid );
 m_out->Print( aNestLevel, ")\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::formatTenting( const PADSTACK& aPadstack ) const
{
 std::optional<bool> front = aPadstack.FrontOuterLayers().has_solder_mask;
 std::optional<bool> back = aPadstack.BackOuterLayers().has_solder_mask;
 
 if( front.has_value() || back.has_value() )
 {
 if( front.value_or( false ) || back.value_or( false ) )
 {
 m_out->Print( 0, " (tenting " );
 
 if( front.value_or( false ) )
 m_out->Print( 0, " front" );
 if( back.value_or( false ) )
 m_out->Print( 0, " back" );
 
 m_out->Print( 0, ")" );
 }
 else
 {
 m_out->Print( 0, " (tenting none)" );
 }
 }
}
 
 
void PCB_IO_KICAD_SEXPR::format( const PCB_TEXT* aText, int aNestLevel ) const
{
 FOOTPRINT* parentFP = aText->GetParentFootprint();
 std::string prefix;
 std::string type;
 VECTOR2I pos = aText->GetTextPos();
 bool isField = dynamic_cast<const PCB_FIELD*>( aText ) != nullptr;
 
 // Always format dimension text as gr_text
 if( dynamic_cast<const PCB_DIMENSION_BASE*>( aText ) )
 parentFP = nullptr;
 
 if( parentFP )
 {
 prefix = "fp";
 type = " user";
 
 pos -= parentFP->GetPosition();
 RotatePoint( pos, -parentFP->GetOrientation() );
 }
 else
 {
 prefix = "gr";
 }
 
 if( !isField )
 {
 m_out->Print( aNestLevel, "(%s_text%s %s", prefix.c_str(), type.c_str(),
 m_out->Quotew( aText->GetText() ).c_str() );
 
 if( aText->IsLocked() )
 KICAD_FORMAT::FormatBool( m_out, 0, "locked", aText->IsLocked() );
 }
 
 m_out->Print( 0, " (at %s", formatInternalUnits( pos ).c_str() );
 
 // Due to Pcbnew history, fp_text angle is saved as an absolute on screen angle.
 // To avoid issues in the future, always save the angle, even if it is 0
 m_out->Print( 0, " %s", EDA_UNIT_UTILS::FormatAngle( aText->GetTextAngle() ).c_str() );
 
 m_out->Print( 0, ")" );
 
 if( parentFP && !aText->IsKeepUpright() )
 KICAD_FORMAT::FormatBool( m_out, 0, "unlocked", !aText->IsKeepUpright() );
 
 formatLayer( aText->GetLayer(), aText->IsKnockout() );
 
 if( parentFP && !aText->IsVisible() )
 KICAD_FORMAT::FormatBool( m_out, 0, "hide", !aText->IsVisible() );
 
 KICAD_FORMAT::FormatUuid( m_out, aText->m_Uuid );
 
 int ctl_flags = m_ctl | CTL_OMIT_HIDE;
 
 // Currently, texts have no specific color and no hyperlink.
 // so ensure they are never written in kicad_pcb file
 ctl_flags |= CTL_OMIT_COLOR | CTL_OMIT_HYPERLINK;
 
 aText->EDA_TEXT::Format( m_out, aNestLevel, ctl_flags );
 
 if( aText->GetFont() && aText->GetFont()->IsOutline() )
 formatRenderCache( aText, aNestLevel + 1 );
 
 if( !isField )
 m_out->Print( aNestLevel, ")\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::format( const PCB_TEXTBOX* aTextBox, int aNestLevel ) const
{
 FOOTPRINT* parentFP = aTextBox->GetParentFootprint();
 
 m_out->Print( aNestLevel, "(%s %s\n",
 aTextBox->Type() == PCB_TABLECELL_T ? "table_cell"
 : parentFP ? "fp_text_box"
 : "gr_text_box",
 m_out->Quotew( aTextBox->GetText() ).c_str() );
 
 if( aTextBox->IsLocked() )
 KICAD_FORMAT::FormatBool( m_out, aNestLevel, "locked", aTextBox->IsLocked() );
 
 if( aTextBox->GetShape() == SHAPE_T::RECTANGLE )
 {
 m_out->Print( aNestLevel + 1, "(start %s) (end %s)",
 formatInternalUnits( aTextBox->GetStart(), parentFP ).c_str(),
 formatInternalUnits( aTextBox->GetEnd(), parentFP ).c_str() );
 }
 else if( aTextBox->GetShape() == SHAPE_T::POLY )
 {
 const SHAPE_POLY_SET& poly = aTextBox->GetPolyShape();
 const SHAPE_LINE_CHAIN& outline = poly.Outline( 0 );
 
 formatPolyPts( outline, aNestLevel, true, parentFP );
 }
 else
 {
 UNIMPLEMENTED_FOR( aTextBox->SHAPE_T_asString() );
 }
 
 m_out->Print( 0, " (margins %s %s %s %s)",
 formatInternalUnits( aTextBox->GetMarginLeft() ).c_str(),
 formatInternalUnits( aTextBox->GetMarginTop() ).c_str(),
 formatInternalUnits( aTextBox->GetMarginRight() ).c_str(),
 formatInternalUnits( aTextBox->GetMarginBottom() ).c_str() );
 
 if( const PCB_TABLECELL* cell = dynamic_cast<const PCB_TABLECELL*>( aTextBox ) )
 m_out->Print( 0, " (span %d %d)", cell->GetColSpan(), cell->GetRowSpan() );
 
 EDA_ANGLE angle = aTextBox->GetTextAngle();
 
 if( parentFP )
 {
 angle -= parentFP->GetOrientation();
 angle.Normalize720();
 }
 
 if( !angle.IsZero() )
 m_out->Print( aNestLevel + 1, "(angle %s)", EDA_UNIT_UTILS::FormatAngle( angle ).c_str() );
 
 formatLayer( aTextBox->GetLayer() );
 m_out->Print( 0, "\n" );
 
 KICAD_FORMAT::FormatUuid( m_out, aTextBox->m_Uuid );
 
 // PCB_TEXTBOXes are never hidden, so always omit "hide" attribute
 aTextBox->EDA_TEXT::Format( m_out, aNestLevel, m_ctl | CTL_OMIT_HIDE );
 
 if( aTextBox->Type() != PCB_TABLECELL_T )
 {
 KICAD_FORMAT::FormatBool( m_out, aNestLevel + 1, "border", aTextBox->IsBorderEnabled() );
 
 aTextBox->GetStroke().Format( m_out, pcbIUScale, aNestLevel + 1 );
 }
 
 if( aTextBox->GetFont() && aTextBox->GetFont()->IsOutline() )
 formatRenderCache( aTextBox, aNestLevel + 1 );
 
 m_out->Print( aNestLevel, ")\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::format( const PCB_TABLE* aTable, int aNestLevel ) const
{
 wxCHECK_RET( aTable != nullptr && m_out != nullptr, "" );
 
 m_out->Print( aNestLevel, "(table (column_count %d)",
 aTable->GetColCount() );
 
 if( aTable->IsLocked() )
 KICAD_FORMAT::FormatBool( m_out, 0, "locked", aTable->IsLocked() );
 
 EDA_ANGLE angle = aTable->GetOrientation();
 
 if( FOOTPRINT* parentFP = aTable->GetParentFootprint() )
 {
 angle -= parentFP->GetOrientation();
 angle.Normalize720();
 }
 
 if( !angle.IsZero() )
 m_out->Print( 0, " (angle %s)", EDA_UNIT_UTILS::FormatAngle( angle ).c_str() );
 
 formatLayer( aTable->GetLayer() );
 
 m_out->Print( 0, "\n" );
 
 m_out->Print( aNestLevel + 1, "(border (external %s) (header %s)",
 aTable->StrokeExternal() ? "yes" : "no",
 aTable->StrokeHeader() ? "yes" : "no" );
 
 if( aTable->StrokeExternal() || aTable->StrokeHeader() )
 {
 m_out->Print( 0, " " );
 aTable->GetBorderStroke().Format( m_out, pcbIUScale, 0 );
 }
 
 m_out->Print( 0, ")\n" );
 
 m_out->Print( aNestLevel + 1, "(separators (rows %s) (cols %s)",
 aTable->StrokeRows() ? "yes" : "no",
 aTable->StrokeColumns() ? "yes" : "no" );
 
 if( aTable->StrokeRows() || aTable->StrokeColumns() )
 {
 m_out->Print( 0, " " );
 aTable->GetSeparatorsStroke().Format( m_out, pcbIUScale, 0 );
 }
 
 m_out->Print( 0, ")\n" ); // Close `separators` token.
 
 m_out->Print( aNestLevel + 1, "(column_widths" );
 
 for( int col = 0; col < aTable->GetColCount(); ++col )
 m_out->Print( 0, " %s", formatInternalUnits( aTable->GetColWidth( col ) ).c_str() );
 
 m_out->Print( 0, ")\n" );
 
 m_out->Print( aNestLevel + 1, "(row_heights" );
 
 for( int row = 0; row < aTable->GetRowCount(); ++row )
 m_out->Print( 0, " %s", formatInternalUnits( aTable->GetRowHeight( row ) ).c_str() );
 
 m_out->Print( 0, ")\n" );
 
 m_out->Print( aNestLevel + 1, "(cells\n" );
 
 for( PCB_TABLECELL* cell : aTable->GetCells() )
 format( static_cast<PCB_TEXTBOX*>( cell ), aNestLevel + 2 );
 
 m_out->Print( aNestLevel + 1, ")\n" ); // Close `cells` token.
 m_out->Print( aNestLevel, ")\n" ); // Close `table` token.
}
 
 
void PCB_IO_KICAD_SEXPR::format( const PCB_GROUP* aGroup, int aNestLevel ) const
{
 // Don't write empty groups
 if( aGroup->GetItems().empty() )
 return;
 
 m_out->Print( aNestLevel, "(group %s\n", m_out->Quotew( aGroup->GetName() ).c_str() );
 
 KICAD_FORMAT::FormatUuid( m_out, aGroup->m_Uuid );
 
 if( aGroup->IsLocked() )
 KICAD_FORMAT::FormatBool( m_out, aNestLevel + 1, "locked", aGroup->IsLocked() );
 
 m_out->Print( aNestLevel + 1, "(members\n" );
 
 wxArrayString memberIds;
 
 for( BOARD_ITEM* member : aGroup->GetItems() )
 memberIds.Add( member->m_Uuid.AsString() );
 
 memberIds.Sort();
 
 for( const wxString& memberId : memberIds )
 m_out->Print( aNestLevel + 2, "\"%s\"\n", TO_UTF8( memberId ) );
 
 m_out->Print( aNestLevel + 1, ")\n" ); // Close `members` token.
 m_out->Print( aNestLevel, ")\n" ); // Close `group` token.
}
 
 
void PCB_IO_KICAD_SEXPR::format( const PCB_GENERATOR* aGenerator, int aNestLevel ) const
{
 m_out->Print( aNestLevel, "(generated\n" );
 
 KICAD_FORMAT::FormatUuid( m_out, aGenerator->m_Uuid );
 
 m_out->Print( aNestLevel + 1, "(type %s) (name %s)\n",
 TO_UTF8( aGenerator->GetGeneratorType() ),
 m_out->Quotew( aGenerator->GetName() ).c_str() );
 
 m_out->Print( aNestLevel + 1, "(layer %s)",
 m_out->Quotew( LSET::Name( aGenerator->GetLayer() ) ).c_str() );
 
 if( const bool locked = aGenerator->IsLocked() ) {
 KICAD_FORMAT::FormatBool( m_out, 0, "locked", locked );
 }
 
 for( const auto& [key, value] : aGenerator->GetProperties() )
 {
 if( value.CheckType<double>() || value.CheckType<int>() || value.CheckType<long>()
 || value.CheckType<long long>() )
 {
 double val;
 
 if( !value.GetAs( &val ) )
 continue;
 
 std::string buf = fmt::format( "{:.10g}", val );
 
 // Don't quote numbers
 m_out->Print( aNestLevel + 1, "(%s %s)\n", key.c_str(), buf.c_str() );
 }
 else if( value.CheckType<bool>() )
 {
 bool val;
 value.GetAs( &val );
 
 m_out->Print( aNestLevel + 1, "(%s %s)\n", key.c_str(), val ? "yes" : "no" );
 }
 else if( value.CheckType<VECTOR2I>() )
 {
 VECTOR2I val;
 value.GetAs( &val );
 
 m_out->Print( aNestLevel + 1, "(%s (xy %s))\n", key.c_str(),
 formatInternalUnits( val ).c_str() );
 }
 else if( value.CheckType<SHAPE_LINE_CHAIN>() )
 {
 SHAPE_LINE_CHAIN val;
 value.GetAs( &val );
 
 m_out->Print( aNestLevel + 1, "(%s (pts\n", key.c_str() );
 
 for( const VECTOR2I& pt : val.CPoints() )
 m_out->Print( aNestLevel + 2, "(xy %s)\n", formatInternalUnits( pt ).c_str() );
 
 m_out->Print( aNestLevel + 1, "))\n" );
 }
 else
 {
 wxString val;
 
 if( value.CheckType<wxString>() )
 {
 value.GetAs( &val );
 }
 else if( value.CheckType<std::string>() )
 {
 std::string str;
 value.GetAs( &str );
 
 val = wxString::FromUTF8( str );
 }
 
 m_out->Print( aNestLevel + 1, "(%s %s)\n", key.c_str(), m_out->Quotew( val ).c_str() );
 }
 }
 
 m_out->Print( aNestLevel + 1, "(members\n" );
 
 wxArrayString memberIds;
 
 for( BOARD_ITEM* member : aGenerator->GetItems() )
 memberIds.Add( member->m_Uuid.AsString() );
 
 memberIds.Sort();
 
 for( const wxString& memberId : memberIds )
 m_out->Print( aNestLevel + 2, "%s\n", TO_UTF8( memberId ) );
 
 m_out->Print( aNestLevel + 1, ")\n" ); // Close `members` token.
 
 m_out->Print( aNestLevel, ")\n" ); // Close `generator` token.
}
 
 
void PCB_IO_KICAD_SEXPR::format( const PCB_TRACK* aTrack, int aNestLevel ) const
{
 if( aTrack->Type() == PCB_VIA_T )
 {
 PCB_LAYER_ID layer1, layer2;
 
 const PCB_VIA* via = static_cast<const PCB_VIA*>( aTrack );
 const BOARD* board = via->GetBoard();
 
 wxCHECK_RET( board != nullptr, wxT( "Via has no parent." ) );
 
 m_out->Print( aNestLevel, "(via" );
 
 via->LayerPair( &layer1, &layer2 );
 
 switch( via->GetViaType() )
 {
 case VIATYPE::THROUGH: // Default shape not saved.
 break;
 
 case VIATYPE::BLIND_BURIED:
 m_out->Print( 0, " blind" );
 break;
 
 case VIATYPE::MICROVIA:
 m_out->Print( 0, " micro" );
 break;
 
 default:
 THROW_IO_ERROR( wxString::Format( _( "unknown via type %d" ), via->GetViaType() ) );
 }
 
 m_out->Print( 0, " (at %s) (size %s)",
 formatInternalUnits( aTrack->GetStart() ).c_str(),
 formatInternalUnits( via->GetWidth( F_Cu ) ).c_str() );
 
 // Old boards were using UNDEFINED_DRILL_DIAMETER value in file for via drill when
 // via drill was the netclass value.
 // recent boards always set the via drill to the actual value, but now we need to
 // always store the drill value, because netclass value is not stored in the board file.
 // Otherwise the drill value of some (old) vias can be unknown
 if( via->GetDrill() != UNDEFINED_DRILL_DIAMETER )
 m_out->Print( 0, " (drill %s)", formatInternalUnits( via->GetDrill() ).c_str() );
 else
 m_out->Print( 0, " (drill %s)", formatInternalUnits( via->GetDrillValue() ).c_str() );
 
 m_out->Print( 0, " (layers %s %s)",
 m_out->Quotew( LSET::Name( layer1 ) ).c_str(),
 m_out->Quotew( LSET::Name( layer2 ) ).c_str() );
 
 switch( via->Padstack().UnconnectedLayerMode() )
 {
 case PADSTACK::UNCONNECTED_LAYER_MODE::REMOVE_ALL:
 m_out->Print( 0, "(remove_unused_layers yes)" );
 m_out->Print( 0, "(keep_end_layers no)" );
 break;
 
 case PADSTACK::UNCONNECTED_LAYER_MODE::REMOVE_EXCEPT_START_AND_END:
 m_out->Print( 0, "(remove_unused_layers yes)" );
 m_out->Print( 0, "(keep_end_layers yes)" );
 break;
 
 case PADSTACK::UNCONNECTED_LAYER_MODE::KEEP_ALL:
 break;
 }
 
 if( via->IsLocked() )
 KICAD_FORMAT::FormatBool( m_out, 0, "locked", via->IsLocked() );
 
 if( via->GetIsFree() )
 KICAD_FORMAT::FormatBool( m_out, 0, "free", via->GetIsFree() );
 
 if( via->GetRemoveUnconnected() )
 {
 m_out->Print( 0, " (zone_layer_connections" );
 
 for( PCB_LAYER_ID layer : board->GetEnabledLayers().CuStack() )
 {
 if( via->GetZoneLayerOverride( layer ) == ZLO_FORCE_FLASHED )
 m_out->Print( 0, " %s", m_out->Quotew( LSET::Name( layer ) ).c_str() );
 }
 
 m_out->Print( 0, ")" );
 }
 
 const PADSTACK& padstack = via->Padstack();
 
 formatTenting( padstack );
 
 if( padstack.Mode() != PADSTACK::MODE::NORMAL )
 {
 std::string mode =
 padstack.Mode() == PADSTACK::MODE::CUSTOM ? "custom" : "front_inner_back";
 m_out->Print( 0, "(padstack (mode %s)", mode.c_str() );
 
 if( padstack.Mode() == PADSTACK::MODE::FRONT_INNER_BACK )
 {
 m_out->Print( 0, "(layer \"Inner\"" );
 m_out->Print( 0, " (size %s)",
 formatInternalUnits( padstack.Size( PADSTACK::INNER_LAYERS ).x ).c_str() );
 m_out->Print( 0, ")(layer \"B.Cu\"" );
 m_out->Print( 0, " (size %s)",
 formatInternalUnits( padstack.Size( B_Cu ).x ).c_str() );
 m_out->Print( 0, ")" );
 }
 else
 {
 for( PCB_LAYER_ID layer : LAYER_RANGE( F_Cu, B_Cu, board->GetCopperLayerCount() ) )
 {
 if( layer == F_Cu )
 continue;
 
 m_out->Print( 0, "(layer %s", m_out->Quotew( LSET::Name( layer ) ).c_str() );
 m_out->Print( 0, " (size %s)",
 formatInternalUnits( padstack.Size( layer ).x ).c_str() );
 m_out->Print( 0, ")" );
 }
 }
 
 m_out->Print( 0, ")" );
 }
 
 if( !isDefaultTeardropParameters( via->GetTeardropParams() ) )
 {
 m_out->Print( 0, "\n" );
 formatTeardropParameters( via->GetTeardropParams(), aNestLevel+1 );
 }
 }
 else
 {
 if( aTrack->Type() == PCB_ARC_T )
 {
 const PCB_ARC* arc = static_cast<const PCB_ARC*>( aTrack );
 
 m_out->Print( aNestLevel, "(arc (start %s) (mid %s) (end %s) (width %s)",
 formatInternalUnits( arc->GetStart() ).c_str(),
 formatInternalUnits( arc->GetMid() ).c_str(),
 formatInternalUnits( arc->GetEnd() ).c_str(),
 formatInternalUnits( arc->GetWidth() ).c_str() );
 }
 else
 {
 m_out->Print( aNestLevel, "(segment (start %s) (end %s) (width %s)",
 formatInternalUnits( aTrack->GetStart() ).c_str(),
 formatInternalUnits( aTrack->GetEnd() ).c_str(),
 formatInternalUnits( aTrack->GetWidth() ).c_str() );
 }
 
 if( aTrack->IsLocked() )
 KICAD_FORMAT::FormatBool( m_out, 0, "locked", aTrack->IsLocked() );
 
 if( aTrack->GetLayerSet().count() > 1 )
 formatLayers( aTrack->GetLayerSet() );
 else
 formatLayer( aTrack->GetLayer() );
 
 if( aTrack->HasSolderMask()
 && aTrack->GetLocalSolderMaskMargin().has_value()
 && ( aTrack->IsOnLayer( F_Cu ) || aTrack->IsOnLayer( B_Cu ) ) )
 {
 m_out->Print( 0, " (solder_mask_margin %s)",
 formatInternalUnits( aTrack->GetLocalSolderMaskMargin().value() ).c_str() );
 }
 }
 
 m_out->Print( 0, " (net %d)", m_mapping->Translate( aTrack->GetNetCode() ) );
 
 KICAD_FORMAT::FormatUuid( m_out, aTrack->m_Uuid );
 
 m_out->Print( 0, ")\n" );
}
 
 
void PCB_IO_KICAD_SEXPR::format( const ZONE* aZone, int aNestLevel ) const
{
 // Save the NET info.
 // For keepout and non copper zones, net code and net name are irrelevant
 // so be sure a dummy value is stored, just for ZONE compatibility
 // (perhaps netcode and netname should be not stored)
 
 bool has_no_net = aZone->GetIsRuleArea() || !aZone->IsOnCopperLayer();
 
 m_out->Print( aNestLevel, "(zone (net %d) (net_name %s)",
 has_no_net ? 0 : m_mapping->Translate( aZone->GetNetCode() ),
 m_out->Quotew( has_no_net ? wxString( wxT("") ) : aZone->GetNetname() ).c_str() );
 
 if( aZone->IsLocked() )
 KICAD_FORMAT::FormatBool( m_out, 0, "locked", aZone->IsLocked() );
 
 // If a zone exists on multiple layers, format accordingly
 LSET layers = aZone->GetLayerSet();
 
 if( aZone->GetBoard() )
 layers &= aZone->GetBoard()->GetEnabledLayers();
 
 if( layers.count() > 1 )
 {
 formatLayers( layers );
 }
 else
 {
 formatLayer( aZone->GetFirstLayer() );
 }
 
 KICAD_FORMAT::FormatUuid( m_out, aZone->m_Uuid );
 
 if( !aZone->GetZoneName().empty() )
 m_out->Print( 0, " (name %s)", m_out->Quotew( aZone->GetZoneName() ).c_str() );
 
 // Save the outline aux info
 std::string hatch;
 
 switch( aZone->GetHatchStyle() )
 {
 default:
 case ZONE_BORDER_DISPLAY_STYLE::NO_HATCH: hatch = "none"; break;
 case ZONE_BORDER_DISPLAY_STYLE::DIAGONAL_EDGE: hatch = "edge"; break;
 case ZONE_BORDER_DISPLAY_STYLE::DIAGONAL_FULL: hatch = "full"; break;
 }
 
 m_out->Print( 0, " (hatch %s %s)\n", hatch.c_str(),
 formatInternalUnits( aZone->GetBorderHatchPitch() ).c_str() );
 
 
 
 if( aZone->GetAssignedPriority() > 0 )
 m_out->Print( aNestLevel+1, "(priority %d)\n", aZone->GetAssignedPriority() );
 
 // Add teardrop keywords in file: (attr (teardrop (type xxx)))where xxx is the teardrop type
 if( aZone->IsTeardropArea() )
 {
 const char* td_type;
 
 switch( aZone->GetTeardropAreaType() )
 {
 case TEARDROP_TYPE::TD_VIAPAD: // a teardrop on a via or pad
 td_type = "padvia";
 break;
 
 default:
 case TEARDROP_TYPE::TD_TRACKEND: // a teardrop on a track end
 td_type = "track_end";
 break;
 }
 
 m_out->Print( aNestLevel+1, "(attr (teardrop (type %s)))\n", td_type );
 }
 
 m_out->Print( aNestLevel+1, "(connect_pads" );
 
 switch( aZone->GetPadConnection() )
 {
 default:
 case ZONE_CONNECTION::THERMAL: // Default option not saved or loaded.
 break;
 
 case ZONE_CONNECTION::THT_THERMAL:
 m_out->Print( 0, " thru_hole_only" );
 break;
 
 case ZONE_CONNECTION::FULL:
 m_out->Print( 0, " yes" );
 break;
 
 case ZONE_CONNECTION::NONE:
 m_out->Print( 0, " no" );
 break;
 }
 
 m_out->Print( 0, " (clearance %s))\n",
 formatInternalUnits( aZone->GetLocalClearance().value() ).c_str() );
 
 m_out->Print( aNestLevel+1, "(min_thickness %s)",
 formatInternalUnits( aZone->GetMinThickness() ).c_str() );
 
 // We continue to write this for 3rd-party parsers, but we no longer read it (as of V7).
 m_out->Print( 0, " (filled_areas_thickness no)" );
 
 m_out->Print( 0, "\n" );
 
 if( aZone->GetIsRuleArea() )
 {
 // Keepout settings
 m_out->Print( aNestLevel + 1,
 "(keepout (tracks %s) (vias %s) (pads %s) (copperpour %s) "
 "(footprints %s))\n",
 aZone->GetDoNotAllowTracks() ? "not_allowed" : "allowed",
 aZone->GetDoNotAllowVias() ? "not_allowed" : "allowed",
 aZone->GetDoNotAllowPads() ? "not_allowed" : "allowed",
 aZone->GetDoNotAllowCopperPour() ? "not_allowed" : "allowed",
 aZone->GetDoNotAllowFootprints() ? "not_allowed" : "allowed" );
 
 // Multichannel settings
 if( ADVANCED_CFG::GetCfg().m_EnableMultichannelTool )
 {
 m_out->Print( aNestLevel + 1, "(placement" );
 m_out->Print( aNestLevel + 2, "(enabled " );
 
 if( aZone->GetRuleAreaPlacementEnabled() )
 m_out->Print( aNestLevel + 2, "yes)" );
 else
 m_out->Print( aNestLevel + 2, "no)" );
 
 switch( aZone->GetRuleAreaPlacementSourceType() )
 {
 case RULE_AREA_PLACEMENT_SOURCE_TYPE::SHEETNAME:
 m_out->Print( aNestLevel + 2, "(sheetname %s)",
 m_out->Quotew( aZone->GetRuleAreaPlacementSource() ).c_str() );
 break;
 case RULE_AREA_PLACEMENT_SOURCE_TYPE::COMPONENT_CLASS:
 m_out->Print( aNestLevel + 2, "(component_class %s)",
 m_out->Quotew( aZone->GetRuleAreaPlacementSource() ).c_str() );
 break;
 }
 
 m_out->Print( aNestLevel + 1, ")" );
 }
 }
 
 m_out->Print( aNestLevel + 1, "(fill" );
 
 // Default is not filled.
 if( aZone->IsFilled() )
 m_out->Print( 0, " yes" );
 
 // Default is polygon filled.
 if( aZone->GetFillMode() == ZONE_FILL_MODE::HATCH_PATTERN )
 m_out->Print( 0, " (mode hatch)" );
 
 m_out->Print( 0, " (thermal_gap %s) (thermal_bridge_width %s)",
 formatInternalUnits( aZone->GetThermalReliefGap() ).c_str(),
 formatInternalUnits( aZone->GetThermalReliefSpokeWidth() ).c_str() );
 
 if( aZone->GetCornerSmoothingType() != ZONE_SETTINGS::SMOOTHING_NONE )
 {
 m_out->Print( 0, " (smoothing" );
 
 switch( aZone->GetCornerSmoothingType() )
 {
 case ZONE_SETTINGS::SMOOTHING_CHAMFER:
 m_out->Print( 0, " chamfer" );
 break;
 
 case ZONE_SETTINGS::SMOOTHING_FILLET:
 m_out->Print( 0, " fillet" );
 break;
 
 default:
 THROW_IO_ERROR( wxString::Format( _( "unknown zone corner smoothing type %d" ),
 aZone->GetCornerSmoothingType() ) );
 }
 m_out->Print( 0, ")" );
 
 if( aZone->GetCornerRadius() != 0 )
 m_out->Print( 0, " (radius %s)", formatInternalUnits( aZone->GetCornerRadius() ).c_str() );
 }
 
 if( aZone->GetIslandRemovalMode() != ISLAND_REMOVAL_MODE::ALWAYS )
 {
 m_out->Print( 0, " (island_removal_mode %d) (island_area_min %s)",
 static_cast<int>( aZone->GetIslandRemovalMode() ),
 formatInternalUnits( aZone->GetMinIslandArea() / pcbIUScale.IU_PER_MM ).c_str() );
 }
 
 if( aZone->GetFillMode() == ZONE_FILL_MODE::HATCH_PATTERN )
 {
 m_out->Print( 0, "\n" );
 m_out->Print( aNestLevel+2, "(hatch_thickness %s) (hatch_gap %s) (hatch_orientation %s)",
 formatInternalUnits( aZone->GetHatchThickness() ).c_str(),
 formatInternalUnits( aZone->GetHatchGap() ).c_str(),
 FormatDouble2Str( aZone->GetHatchOrientation().AsDegrees() ).c_str() );
 
 if( aZone->GetHatchSmoothingLevel() > 0 )
 {
 m_out->Print( 0, "\n" );
 m_out->Print( aNestLevel+2, "(hatch_smoothing_level %d) (hatch_smoothing_value %s)",
 aZone->GetHatchSmoothingLevel(),
 FormatDouble2Str( aZone->GetHatchSmoothingValue() ).c_str() );
 }
 
 m_out->Print( 0, "\n" );
 m_out->Print( aNestLevel+2, "(hatch_border_algorithm %s) (hatch_min_hole_area %s)",
 aZone->GetHatchBorderAlgorithm() ? "hatch_thickness" : "min_thickness",
 FormatDouble2Str( aZone->GetHatchHoleMinArea() ).c_str() );
 }
 
 m_out->Print( 0, ")\n" );
 
 if( aZone->GetNumCorners() )
 {
 SHAPE_POLY_SET::POLYGON poly = aZone->Outline()->Polygon(0);
 
 for( auto& chain : poly )
 {
 m_out->Print( aNestLevel + 1, "(polygon\n" );
 formatPolyPts( chain, aNestLevel + 1, ADVANCED_CFG::GetCfg().m_CompactSave );
 m_out->Print( aNestLevel + 1, ")\n" );
 }
 }
 
 // Save the PolysList (filled areas)
 for( PCB_LAYER_ID layer : aZone->GetLayerSet().Seq() )
 {
 const std::shared_ptr<SHAPE_POLY_SET>& fv = aZone->GetFilledPolysList( layer );
 
 for( int ii = 0; ii < fv->OutlineCount(); ++ii )
 {
 m_out->Print( aNestLevel + 1, "(filled_polygon\n" );
 m_out->Print( aNestLevel + 2, "(layer %s)\n",
 m_out->Quotew( LSET::Name( layer ) ).c_str() );
 
 if( aZone->IsIsland( layer, ii ) )
 m_out->Print( aNestLevel + 2, "(island)\n" );
 
 const SHAPE_LINE_CHAIN& chain = fv->COutline( ii );
 
 formatPolyPts( chain, aNestLevel + 1, ADVANCED_CFG::GetCfg().m_CompactSave );
 m_out->Print( aNestLevel + 1, ")\n" );
 }
 }
 
 m_out->Print( aNestLevel, ")\n" );
}
 
 
PCB_IO_KICAD_SEXPR::PCB_IO_KICAD_SEXPR( int aControlFlags ) : PCB_IO( wxS( "KiCad" ) ),
 m_cache( nullptr ),
 m_ctl( aControlFlags ),
 m_mapping( new NETINFO_MAPPING() )
{
 init( nullptr );
 m_out = &m_sf;
}
 
 
PCB_IO_KICAD_SEXPR::~PCB_IO_KICAD_SEXPR()
{
 delete m_cache;
 delete m_mapping;
}
 
 
BOARD* PCB_IO_KICAD_SEXPR::LoadBoard( const wxString& aFileName, BOARD* aAppendToMe,
 const std::map<std::string, UTF8>* aProperties, PROJECT* aProject )
{
 FILE_LINE_READER reader( aFileName );
 
 unsigned lineCount = 0;
 
 fontconfig::FONTCONFIG::SetReporter( &WXLOG_REPORTER::GetInstance() );
 
 if( m_progressReporter )
 {
 m_progressReporter->Report( wxString::Format( _( "Loading %s..." ), aFileName ) );
 
 if( !m_progressReporter->KeepRefreshing() )
 THROW_IO_ERROR( _( "Open cancelled by user." ) );
 
 while( reader.ReadLine() )
 lineCount++;
 
 reader.Rewind();
 }
 
 BOARD* board = DoLoad( reader, aAppendToMe, aProperties, m_progressReporter, lineCount );
 
 // Give the filename to the board if it's new
 if( !aAppendToMe )
 board->SetFileName( aFileName );
 
 return board;
}
 
 
BOARD* PCB_IO_KICAD_SEXPR::DoLoad( LINE_READER& aReader, BOARD* aAppendToMe, const std::map<std::string, UTF8>* aProperties,
 PROGRESS_REPORTER* aProgressReporter, unsigned aLineCount)
{
 init( aProperties );
 
 PCB_IO_KICAD_SEXPR_PARSER parser( &aReader, aAppendToMe, m_queryUserCallback, aProgressReporter, aLineCount );
 BOARD* board;
 
 try
 {
 board = dynamic_cast<BOARD*>( parser.Parse() );
 }
 catch( const FUTURE_FORMAT_ERROR& )
 {
 // Don't wrap a FUTURE_FORMAT_ERROR in another
 throw;
 }
 catch( const PARSE_ERROR& parse_error )
 {
 if( parser.IsTooRecent() )
 throw FUTURE_FORMAT_ERROR( parse_error, parser.GetRequiredVersion() );
 else
 throw;
 }
 
 if( !board )
 {
 // The parser loaded something that was valid, but wasn't a board.
 THROW_PARSE_ERROR( _( "This file does not contain a PCB." ), parser.CurSource(),
 parser.CurLine(), parser.CurLineNumber(), parser.CurOffset() );
 }
 
 return board;
}
 
 
void PCB_IO_KICAD_SEXPR::init( const std::map<std::string, UTF8>* aProperties )
{
 m_board = nullptr;
 m_reader = nullptr;
 m_props = aProperties;
}
 
 
void PCB_IO_KICAD_SEXPR::validateCache( const wxString& aLibraryPath, bool checkModified )
{
 fontconfig::FONTCONFIG::SetReporter( nullptr );
 
 if( !m_cache || !m_cache->IsPath( aLibraryPath ) || ( checkModified && m_cache->IsModified() ) )
 {
 // a spectacular episode in memory management:
 delete m_cache;
 m_cache = new FP_CACHE( this, aLibraryPath );
 m_cache->Load();
 }
}
 
 
void PCB_IO_KICAD_SEXPR::FootprintEnumerate( wxArrayString& aFootprintNames, const wxString& aLibPath,
 bool aBestEfforts, const std::map<std::string, UTF8>* aProperties )
{
 LOCALE_IO toggle; // toggles on, then off, the C locale.
 wxDir dir( aLibPath );
 wxString errorMsg;
 
 init( aProperties );
 
 try
 {
 validateCache( aLibPath );
 }
 catch( const IO_ERROR& ioe )
 {
 errorMsg = ioe.What();
 }
 
 // Some of the files may have been parsed correctly so we want to add the valid files to
 // the library.
 
 for( const auto& footprint : m_cache->GetFootprints() )
 aFootprintNames.Add( footprint.first );
 
 if( !errorMsg.IsEmpty() && !aBestEfforts )
 THROW_IO_ERROR( errorMsg );
}
 
 
const FOOTPRINT* PCB_IO_KICAD_SEXPR::getFootprint( const wxString& aLibraryPath,
 const wxString& aFootprintName,
 const std::map<std::string, UTF8>* aProperties,
 bool checkModified )
{
 LOCALE_IO toggle; // toggles on, then off, the C locale.
 
 init( aProperties );
 
 try
 {
 validateCache( aLibraryPath, checkModified );
 }
 catch( const IO_ERROR& )
 {
 // do nothing with the error
 }
 
 FP_CACHE_FOOTPRINT_MAP& footprints = m_cache->GetFootprints();
 FP_CACHE_FOOTPRINT_MAP::const_iterator it = footprints.find( aFootprintName );
 
 if( it == footprints.end() )
 return nullptr;
 
 return it->second->GetFootprint();
}
 
 
const FOOTPRINT* PCB_IO_KICAD_SEXPR::GetEnumeratedFootprint( const wxString& aLibraryPath,
 const wxString& aFootprintName,
 const std::map<std::string, UTF8>* aProperties )
{
 return getFootprint( aLibraryPath, aFootprintName, aProperties, false );
}
 
 
bool PCB_IO_KICAD_SEXPR::FootprintExists( const wxString& aLibraryPath, const wxString& aFootprintName,
 const std::map<std::string, UTF8>* aProperties )
{
 // Note: checking the cache sounds like a good idea, but won't catch files which differ
 // only in case.
 //
 // Since this goes out to the native filesystem, we get platform differences (ie: MSW's
 // case-insensitive filesystem) handled "for free".
 // Warning: footprint names frequently contain a point. So be careful when initializing
 // wxFileName, and use a CTOR with extension specified
 wxFileName footprintFile( aLibraryPath, aFootprintName, FILEEXT::KiCadFootprintFileExtension );
 
 return footprintFile.Exists();
}
 
 
FOOTPRINT* PCB_IO_KICAD_SEXPR::ImportFootprint( const wxString& aFootprintPath, wxString& aFootprintNameOut,
 const std::map<std::string, UTF8>* aProperties )
{
 wxString fcontents;
 wxFFile f( aFootprintPath );
 
 fontconfig::FONTCONFIG::SetReporter( nullptr );
 
 if( !f.IsOpened() )
 return nullptr;
 
 f.ReadAll( &fcontents );
 
 aFootprintNameOut = wxFileName( aFootprintPath ).GetName();
 
 return dynamic_cast<FOOTPRINT*>( Parse( fcontents ) );
}
 
 
FOOTPRINT* PCB_IO_KICAD_SEXPR::FootprintLoad( const wxString& aLibraryPath,
 const wxString& aFootprintName,
 bool aKeepUUID,
 const std::map<std::string, UTF8>* aProperties )
{
 fontconfig::FONTCONFIG::SetReporter( nullptr );
 
 const FOOTPRINT* footprint = getFootprint( aLibraryPath, aFootprintName, aProperties, true );
 
 if( footprint )
 {
 FOOTPRINT* copy;
 
 if( aKeepUUID )
 copy = static_cast<FOOTPRINT*>( footprint->Clone() );
 else
 copy = static_cast<FOOTPRINT*>( footprint->Duplicate() );
 
 copy->SetParent( nullptr );
 return copy;
 }
 
 return nullptr;
}
 
 
void PCB_IO_KICAD_SEXPR::FootprintSave( const wxString& aLibraryPath, const FOOTPRINT* aFootprint,
 const std::map<std::string, UTF8>* aProperties )
{
 LOCALE_IO toggle; // toggles on, then off, the C locale.
 
 init( aProperties );
 
 // In this public PLUGIN API function, we can safely assume it was
 // called for saving into a library path.
 m_ctl = CTL_FOR_LIBRARY;
 
 validateCache( aLibraryPath, !aProperties || !aProperties->contains( "skip_cache_validation" ) );
 
 if( !m_cache->IsWritable() )
 {
 if( !m_cache->Exists() )
 {
 const wxString msg = wxString::Format( _( "Library '%s' does not exist.\n"
 "Would you like to create it?"),
 aLibraryPath );
 
 if( !Pgm().IsGUI()
 || wxMessageBox( msg, _( "Library Not Found" ), wxYES_NO | wxICON_QUESTION )
 != wxYES )
 return;
 
 // Save throws its own IO_ERROR on failure, so no need to recreate here
 m_cache->Save( nullptr );
 }
 else
 {
 wxString msg = wxString::Format( _( "Library '%s' is read only." ), aLibraryPath );
 THROW_IO_ERROR( msg );
 }
 }
 
 wxString footprintName = aFootprint->GetFPID().GetLibItemName();
 
 FP_CACHE_FOOTPRINT_MAP& footprints = m_cache->GetFootprints();
 wxString fpName = aFootprint->GetFPID().GetLibItemName().wx_str();
 ReplaceIllegalFileNameChars( fpName, '_' );
 
 // Quietly overwrite footprint and delete footprint file from path for any by same name.
 wxFileName fn( aLibraryPath, fpName, FILEEXT::KiCadFootprintFileExtension );
 
 // Write through symlinks, don't replace them
 WX_FILENAME::ResolvePossibleSymlinks( fn );
 
 if( !fn.IsOk() )
 {
 THROW_IO_ERROR( wxString::Format( _( "Footprint file name '%s' is not valid." ),
 fn.GetFullPath() ) );
 }
 
 if( fn.FileExists() && !fn.IsFileWritable() )
 {
 THROW_IO_ERROR( wxString::Format( _( "Insufficient permissions to delete '%s'." ),
 fn.GetFullPath() ) );
 }
 
 wxString fullPath = fn.GetFullPath();
 wxString fullName = fn.GetFullName();
 FP_CACHE_FOOTPRINT_MAP::const_iterator it = footprints.find( footprintName );
 
 if( it != footprints.end() )
 {
 wxLogTrace( traceKicadPcbPlugin, wxT( "Removing footprint file '%s'." ), fullPath );
 footprints.erase( footprintName );
 wxRemoveFile( fullPath );
 }
 
 // I need my own copy for the cache
 FOOTPRINT* footprint = static_cast<FOOTPRINT*>( aFootprint->Clone() );
 
 // It's orientation should be zero and it should be on the front layer.
 footprint->SetOrientation( ANGLE_0 );
 
 if( footprint->GetLayer() != F_Cu )
 {
 PCBNEW_SETTINGS* cfg = dynamic_cast<PCBNEW_SETTINGS*>( Kiface().KifaceSettings() );
 
 if( cfg )
 footprint->Flip( footprint->GetPosition(), cfg->m_FlipDirection );
 else
 footprint->Flip( footprint->GetPosition(), FLIP_DIRECTION::TOP_BOTTOM );
 }
 
 // Detach it from the board and its group
 footprint->SetParent( nullptr );
 footprint->SetParentGroup( nullptr );
 
 wxLogTrace( traceKicadPcbPlugin, wxT( "Creating s-expr footprint file '%s'." ), fullPath );
 footprints.insert( footprintName,
 new FP_CACHE_ITEM( footprint, WX_FILENAME( fn.GetPath(), fullName ) ) );
 m_cache->Save( footprint );
}
 
 
void PCB_IO_KICAD_SEXPR::FootprintDelete( const wxString& aLibraryPath, const wxString& aFootprintName,
 const std::map<std::string, UTF8>* aProperties )
{
 LOCALE_IO toggle; // toggles on, then off, the C locale.
 
 init( aProperties );
 
 validateCache( aLibraryPath );
 
 if( !m_cache->IsWritable() )
 {
 THROW_IO_ERROR( wxString::Format( _( "Library '%s' is read only." ),
 aLibraryPath.GetData() ) );
 }
 
 m_cache->Remove( aFootprintName );
}
 
 
 
long long PCB_IO_KICAD_SEXPR::GetLibraryTimestamp( const wxString& aLibraryPath ) const
{
 return FP_CACHE::GetTimestamp( aLibraryPath );
}
 
 
void PCB_IO_KICAD_SEXPR::CreateLibrary( const wxString& aLibraryPath, const std::map<std::string, UTF8>* aProperties )
{
 if( wxDir::Exists( aLibraryPath ) )
 {
 THROW_IO_ERROR( wxString::Format( _( "Cannot overwrite library path '%s'." ),
 aLibraryPath.GetData() ) );
 }
 
 LOCALE_IO toggle;
 
 init( aProperties );
 
 delete m_cache;
 m_cache = new FP_CACHE( this, aLibraryPath );
 m_cache->Save();
}
 
 
bool PCB_IO_KICAD_SEXPR::DeleteLibrary( const wxString& aLibraryPath, const std::map<std::string, UTF8>* aProperties )
{
 wxFileName fn;
 fn.SetPath( aLibraryPath );
 
 // Return if there is no library path to delete.
 if( !fn.DirExists() )
 return false;
 
 if( !fn.IsDirWritable() )
 {
 THROW_IO_ERROR( wxString::Format( _( "Insufficient permissions to delete folder '%s'." ),
 aLibraryPath.GetData() ) );
 }
 
 wxDir dir( aLibraryPath );
 
 if( dir.HasSubDirs() )
 {
 THROW_IO_ERROR( wxString::Format( _( "Library folder '%s' has unexpected sub-folders." ),
 aLibraryPath.GetData() ) );
 }
 
 // All the footprint files must be deleted before the directory can be deleted.
 if( dir.HasFiles() )
 {
 unsigned i;
 wxFileName tmp;
 wxArrayString files;
 
 wxDir::GetAllFiles( aLibraryPath, &files );
 
 for( i = 0; i < files.GetCount(); i++ )
 {
 tmp = files[i];
 
 if( tmp.GetExt() != FILEEXT::KiCadFootprintFileExtension )
 {
 THROW_IO_ERROR( wxString::Format( _( "Unexpected file '%s' found in library "
 "path '%s'." ),
 files[i].GetData(),
 aLibraryPath.GetData() ) );
 }
 }
 
 for( i = 0; i < files.GetCount(); i++ )
 wxRemoveFile( files[i] );
 }
 
 wxLogTrace( traceKicadPcbPlugin, wxT( "Removing footprint library '%s'." ),
 aLibraryPath.GetData() );
 
 // Some of the more elaborate wxRemoveFile() crap puts up its own wxLog dialog
 // we don't want that. we want bare metal portability with no UI here.
 if( !wxRmdir( aLibraryPath ) )
 {
 THROW_IO_ERROR( wxString::Format( _( "Footprint library '%s' cannot be deleted." ),
 aLibraryPath.GetData() ) );
 }
 
 // For some reason removing a directory in Windows is not immediately updated. This delay
 // prevents an error when attempting to immediately recreate the same directory when over
 // writing an existing library.
#ifdef __WINDOWS__
 wxMilliSleep( 250L );
#endif
 
 if( m_cache && !m_cache->IsPath( aLibraryPath ) )
 {
 delete m_cache;
 m_cache = nullptr;
 }
 
 return true;
}
 
 
bool PCB_IO_KICAD_SEXPR::IsLibraryWritable( const wxString& aLibraryPath )
{
 LOCALE_IO toggle;
 
 init( nullptr );
 
 validateCache( aLibraryPath );
 
 return m_cache->IsWritable();
}