286 lines
8.3 KiB
C++
286 lines
8.3 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2019-2020 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <cstdio>
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#include <boost/algorithm/string/case_conv.hpp>
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#include <memory>
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#include "class_board.h"
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#include "pcb_expr_evaluator.h"
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static void onLayer( LIBEVAL::CONTEXT* aCtx, void *self )
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{
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LIBEVAL::VALUE* arg = aCtx->Pop();
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LIBEVAL::VALUE* result = aCtx->AllocValue();
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result->Set( 0.0 );
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aCtx->Push( result );
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if( !arg )
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{
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aCtx->ReportError( _( "Missing argument to 'onLayer()'" ) );
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return;
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}
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wxString layerName = arg->AsString();
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PCB_LAYER_ID layer = ENUM_MAP<PCB_LAYER_ID>::Instance().ToEnum( layerName );
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if( layer == UNDEFINED_LAYER )
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{
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aCtx->ReportError( wxString::Format( _( "Unrecognized layer '%s' " ), layerName ) );
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return;
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}
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PCB_EXPR_VAR_REF* vref = static_cast<PCB_EXPR_VAR_REF*>( self );
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BOARD_ITEM* item = vref ? vref->GetObject( aCtx ) : nullptr;
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if( item && item->IsOnLayer( layer ) )
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result->Set( 1.0 );
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}
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static void isPlated( LIBEVAL::CONTEXT* aCtx, void *self )
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{
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LIBEVAL::VALUE* result = aCtx->AllocValue();
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result->Set( 0.0 );
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aCtx->Push( result );
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PCB_EXPR_VAR_REF* vref = static_cast<PCB_EXPR_VAR_REF*>( self );
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BOARD_ITEM* item = vref ? vref->GetObject( aCtx ) : nullptr;
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D_PAD* pad = dynamic_cast<D_PAD*>( item );
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if( pad && pad->GetAttribute() == PAD_ATTRIB_STANDARD )
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result->Set( 1.0 );
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}
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PCB_EXPR_BUILTIN_FUNCTIONS::PCB_EXPR_BUILTIN_FUNCTIONS()
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{
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auto registerFunc = [&]( const wxString& funcSignature, FPTR funcPtr )
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{
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wxString funcName = funcSignature.BeforeFirst( '(' );
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m_funcs[ std::string( funcName.Lower() ) ] = std::move( funcPtr );
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m_funcSigs.Add( funcSignature );
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};
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registerFunc( "onLayer('x')", onLayer );
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registerFunc( "isPlated()", isPlated );
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}
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BOARD_ITEM* PCB_EXPR_VAR_REF::GetObject( LIBEVAL::CONTEXT* aCtx ) const
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{
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const PCB_EXPR_CONTEXT* ctx = static_cast<const PCB_EXPR_CONTEXT*>( aCtx );
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BOARD_ITEM* item = ctx->GetItem( m_itemIndex );
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return item;
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}
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LIBEVAL::VALUE PCB_EXPR_VAR_REF::GetValue( LIBEVAL::CONTEXT* aCtx )
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{
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BOARD_ITEM* item = const_cast<BOARD_ITEM*>( GetObject( aCtx ) );
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auto it = m_matchingTypes.find( TYPE_HASH( *item ) );
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if( it == m_matchingTypes.end() )
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{
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// Don't force user to type "A.Type == 'via' && A.Via_Type == 'buried'" when the
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// simplier "A.Via_Type == 'buried'" is perfectly clear. Instead, return an undefined
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// value when the property doesn't appear on a particular object.
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return LIBEVAL::VALUE( "UNDEFINED" );
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}
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else
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{
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if( m_type == LIBEVAL::VT_NUMERIC )
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return LIBEVAL::VALUE( (double) item->Get<int>( it->second ) );
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else
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{
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wxString str;
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if( !m_isEnum )
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{
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//printf("item %p Get string '%s'\n", item, (const char*) it->second->Name().c_str() );
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str = item->Get<wxString>( it->second );
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}
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else
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{
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const wxAny& any = item->Get( it->second );
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any.GetAs<wxString>( &str );
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//printf("item %p get enum: '%s'\n", item , (const char*) str.c_str() );
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}
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return LIBEVAL::VALUE( str );
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}
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}
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}
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LIBEVAL::UCODE::FUNC_PTR PCB_EXPR_UCODE::createFuncCall( LIBEVAL::COMPILER* aCompiler,
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const std::string& name )
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{
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PCB_EXPR_BUILTIN_FUNCTIONS& registry = PCB_EXPR_BUILTIN_FUNCTIONS::Instance();
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auto f = registry.Get( boost::to_lower_copy( name ) );
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return f;
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}
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LIBEVAL::VAR_REF* PCB_EXPR_UCODE::createVarRef( LIBEVAL::COMPILER *aCompiler,
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const std::string& aVar,
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const std::string& aField )
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{
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PROPERTY_MANAGER& propMgr = PROPERTY_MANAGER::Instance();
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PCB_EXPR_VAR_REF* vref = nullptr;
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if( aVar == "A" )
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{
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vref = new PCB_EXPR_VAR_REF( 0 );
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}
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else if( aVar == "B" )
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{
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vref = new PCB_EXPR_VAR_REF( 1 );
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}
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else
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{
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aCompiler->ReportError( "var" );
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return vref;
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}
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if( aField.empty() ) // return reference to base object
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return vref;
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std::string field( aField );
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std::replace( field.begin(), field.end(), '_', ' ');
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for( const PROPERTY_MANAGER::CLASS_INFO& cls : propMgr.GetAllClasses() )
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{
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if( propMgr.IsOfType( cls.type, TYPE_HASH( BOARD_ITEM ) ) )
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{
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PROPERTY_BASE* prop = propMgr.GetProperty( cls.type, field );
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if( prop )
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{
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//printf("Field '%s' class %s ptr %p haschoices %d typeid %s\n", field.c_str(), (const char *) cls.name.c_str(), prop, !!prop->HasChoices(), typeid(*prop).name() );
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vref->AddAllowedClass( cls.type, prop );
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if( prop->TypeHash() == TYPE_HASH( int ) )
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{
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vref->SetType( LIBEVAL::VT_NUMERIC );
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}
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else if( prop->TypeHash() == TYPE_HASH( wxString ) )
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{
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vref->SetType( LIBEVAL::VT_STRING );
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}
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else if ( prop->HasChoices() )
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{ // it's an enum, we treat it as string
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vref->SetType( LIBEVAL::VT_STRING );
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vref->SetIsEnum ( true );
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}
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else
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{
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(void) 0; // should we do anything here?
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//msg.Printf("Unrecognized type for property '%s'", field.c_str() );
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//aCompiler->ReportError( (const char*) msg.c_str() );
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}
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}
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}
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}
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if( vref->GetType() == LIBEVAL::VT_UNDEFINED )
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aCompiler->ReportError( "field" );
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return vref;
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}
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class PCB_UNIT_RESOLVER : public LIBEVAL::UNIT_RESOLVER
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{
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public:
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virtual ~PCB_UNIT_RESOLVER()
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{
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}
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virtual const std::vector<std::string>& GetSupportedUnits() const override
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{
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static const std::vector<std::string> pcbUnits = { "mil", "mm", "in" };
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return pcbUnits;
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}
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virtual double Convert( const std::string& aString, int unitId ) const override
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{
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double v = atof( aString.c_str() );
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switch( unitId )
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{
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case 0: return Mils2iu( v );
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case 1: return Millimeter2iu( v );
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case 2: return Mils2iu( v * 1000.0 );
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default: return v;
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}
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};
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};
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PCB_EXPR_COMPILER::PCB_EXPR_COMPILER()
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{
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m_unitResolver = std::make_unique<PCB_UNIT_RESOLVER>();
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}
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PCB_EXPR_EVALUATOR::PCB_EXPR_EVALUATOR()
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{
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m_result = 0;
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}
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PCB_EXPR_EVALUATOR::~PCB_EXPR_EVALUATOR()
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{
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}
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bool PCB_EXPR_EVALUATOR::Evaluate( const wxString& aExpr )
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{
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PCB_EXPR_UCODE ucode;
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LIBEVAL::CONTEXT preflightContext;
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if( !m_compiler.Compile( (const char*) aExpr.c_str(), &ucode, &preflightContext ) )
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{
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m_errorStatus = m_compiler.GetErrorStatus();
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return false;
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}
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// fixme: handle error conditions
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LIBEVAL::CONTEXT ctx;
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LIBEVAL::VALUE* result = ucode.Run( &ctx );
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if( result->GetType() == LIBEVAL::VT_NUMERIC )
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m_result = KiROUND( result->AsDouble() );
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return true;
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}
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