kicad/eeschema/sim/spice_model_parser.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2022 Mikolaj Wielgus
* Copyright (C) 2022-2023 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 3
* 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:
* https://www.gnu.org/licenses/gpl-3.0.html
* or you may search the http://www.gnu.org website for the version 3 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <sim/spice_model_parser.h>
#include <sim/spice_grammar.h>
#include <sim/sim_model_spice.h>
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#include <sim/sim_library_spice.h>
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#include <boost/algorithm/string/case_conv.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <pegtl.hpp>
#include <pegtl/contrib/parse_tree.hpp>
namespace SIM_MODEL_SPICE_PARSER
{
using namespace SPICE_GRAMMAR;
template <typename Rule> struct spiceUnitSelector : std::false_type {};
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template <> struct spiceUnitSelector<dotModelAko> : std::true_type {};
template <> struct spiceUnitSelector<dotModel> : std::true_type {};
template <> struct spiceUnitSelector<modelName> : std::true_type {};
template <> struct spiceUnitSelector<dotModelType> : std::true_type {};
template <> struct spiceUnitSelector<param> : std::true_type {};
template <> struct spiceUnitSelector<paramValue> : std::true_type {};
template <> struct spiceUnitSelector<dotSubckt> : std::true_type {};
}
SIM_MODEL::TYPE SPICE_MODEL_PARSER::ReadType( const SIM_LIBRARY_SPICE& aLibrary,
const std::string& aSpiceCode )
{
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tao::pegtl::string_input<> in( aSpiceCode, "Spice_Code" );
std::unique_ptr<tao::pegtl::parse_tree::node> root;
try
{
root = tao::pegtl::parse_tree::parse<SIM_MODEL_SPICE_PARSER::spiceUnitGrammar,
SIM_MODEL_SPICE_PARSER::spiceUnitSelector,
tao::pegtl::nothing,
SIM_MODEL_SPICE_PARSER::control>
( in );
}
catch( const tao::pegtl::parse_error& e )
{
wxLogDebug( "%s", e.what() );
return SIM_MODEL::TYPE::NONE;
}
for( const auto& node : root->children )
{
if( node->is_type<SIM_MODEL_SPICE_PARSER::dotModelAko>() )
{
std::string modelName = node->children.at( 0 )->string();
std::string akoName = node->children.at( 1 )->string();
const SIM_MODEL* sourceModel = aLibrary.FindModel( akoName );
if( !sourceModel )
{
THROW_IO_ERROR( wxString::Format(
_( "Could not find model '%s' to copy for \"A Kind Of\" model '%s'" ),
akoName,
modelName ) );
}
return sourceModel->GetType();
}
else if( node->is_type<SIM_MODEL_SPICE_PARSER::dotModel>() )
{
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std::string paramName;
std::string typeString;
std::string level;
std::string version;
for( const auto& subnode : node->children )
{
if( subnode->is_type<SIM_MODEL_SPICE_PARSER::modelName>() )
{
// Do nothing.
}
else if( subnode->is_type<SIM_MODEL_SPICE_PARSER::dotModelType>() )
{
typeString = subnode->string();
SIM_MODEL::TYPE type = ReadTypeFromSpiceStrings( typeString );
if( type != SIM_MODEL::TYPE::RAWSPICE )
return type;
}
else if( subnode->is_type<SIM_MODEL_SPICE_PARSER::param>() )
{
paramName = subnode->string();
}
else if( subnode->is_type<SIM_MODEL_SPICE_PARSER::paramValue>() )
{
wxASSERT( paramName != "" );
if( paramName == "level" )
level = subnode->string();
else if( paramName == "version" )
version = subnode->string();
}
else
{
wxFAIL_MSG( "Unhandled parse tree subnode" );
return SIM_MODEL::TYPE::NONE;
}
}
// Type was not determined from Spice type string alone, so now we take `level` and
// `version` variables into account too. This is suboptimal since we read the model
// twice this way, and moreover the code is now somewhat duplicated.
return ReadTypeFromSpiceStrings( typeString, level, version, false );
}
else if( node->is_type<SIM_MODEL_SPICE_PARSER::dotSubckt>() )
return SIM_MODEL::TYPE::SUBCKT;
else
{
wxFAIL_MSG( "Unhandled parse tree node" );
return SIM_MODEL::TYPE::NONE;
}
}
wxFAIL_MSG( "Could not derive type from Spice code" );
return SIM_MODEL::TYPE::NONE;
}
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void SPICE_MODEL_PARSER::ReadModel( const SIM_LIBRARY_SPICE& aLibrary,
const std::string& aSpiceCode )
{
// The default behavior is to treat the Spice param=value pairs as the model parameters and
// values (for many models the correspondence is not exact, so this function is overridden).
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tao::pegtl::string_input<> in( aSpiceCode, "Spice_Code" );
std::unique_ptr<tao::pegtl::parse_tree::node> root;
try
{
root = tao::pegtl::parse_tree::parse<SIM_MODEL_SPICE_PARSER::spiceUnitGrammar,
SIM_MODEL_SPICE_PARSER::spiceUnitSelector,
tao::pegtl::nothing,
SIM_MODEL_SPICE_PARSER::control>
( in );
}
catch( tao::pegtl::parse_error& e )
{
THROW_IO_ERROR( e.what() );
}
for( const auto& node : root->children )
{
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if( node->is_type<SIM_MODEL_SPICE_PARSER::dotModelAko>() )
{
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std::string modelName = node->children.at( 0 )->string();
std::string akoName = node->children.at( 1 )->string();
const SIM_MODEL* sourceModel = aLibrary.FindModel( akoName );
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if( !sourceModel )
{
THROW_IO_ERROR( wxString::Format(
_( "Could not find model '%s' to copy for \"A Kind Of\" model '%s'" ),
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akoName,
modelName ) );
}
for( int i = 0; i < static_cast<int>( sourceModel->GetParamCount() ); ++i )
m_model.SetParamValue( i, sourceModel->GetParam( i ).value );
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std::string paramName;
for( const auto& subnode : node->children )
{
if( subnode->is_type<SIM_MODEL_SPICE_PARSER::modelName>() )
{
// Do nothing.
}
else if( subnode->is_type<SIM_MODEL_SPICE_PARSER::dotModelType>() )
{
// Do nothing.
}
else if( subnode->is_type<SIM_MODEL_SPICE_PARSER::param>() )
{
paramName = subnode->string();
}
else if( subnode->is_type<SIM_MODEL_SPICE_PARSER::paramValue>() )
{
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wxASSERT( paramName != "" );
m_model.SetParamFromSpiceCode( paramName, subnode->string() );
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}
else
{
wxFAIL_MSG( "Unhandled parse tree subnode" );
}
}
}
else if( node->is_type<SIM_MODEL_SPICE_PARSER::dotModel>() )
{
std::string modelName;
std::string paramName;
for( const auto& subnode : node->children )
{
if( subnode->is_type<SIM_MODEL_SPICE_PARSER::modelName>() )
{
modelName = subnode->string();
}
else if( subnode->is_type<SIM_MODEL_SPICE_PARSER::dotModelType>() )
{
// Do nothing.
}
else if( subnode->is_type<SIM_MODEL_SPICE_PARSER::param>() )
{
paramName = subnode->string();
}
else if( subnode->is_type<SIM_MODEL_SPICE_PARSER::paramValue>() )
{
wxASSERT( paramName != "" );
m_model.SetParamFromSpiceCode( paramName, subnode->string() );
}
else
{
wxFAIL_MSG( "Unhandled parse tree subnode" );
}
}
}
else
{
wxFAIL_MSG( "Unhandled parse tree node" );
}
}
m_model.m_spiceCode = aSpiceCode;
}
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SIM_MODEL::TYPE SPICE_MODEL_PARSER::ReadTypeFromSpiceStrings( const std::string& aTypeString,
const std::string& aLevel,
const std::string& aVersion,
bool aSkipDefaultLevel )
{
std::string readLevel = wxString( aLevel ).BeforeFirst( '.' ).ToStdString();
for( SIM_MODEL::TYPE type : SIM_MODEL::TYPE_ITERATOR() )
{
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std::string typePrefix = SIM_MODEL::SpiceInfo( type ).modelType;
std::string level = SIM_MODEL::SpiceInfo( type ).level;
std::string version = SIM_MODEL::SpiceInfo( type ).version;
bool isDefaultLevel = SIM_MODEL::SpiceInfo( type ).isDefaultLevel;
if( typePrefix == "" )
continue;
if( boost::starts_with( typePrefix, "VDMOS" ) )
{
wxString deviceType = wxString( typePrefix ).BeforeFirst( ' ' ); // VDMOS
wxString channelType = wxString( typePrefix ).AfterFirst( ' ' ); // NCHAN or PCHAN
wxStringTokenizer tokenizer( aTypeString, wxT( " \t\n\r+(" ), wxTOKEN_STRTOK );
if( tokenizer.HasMoreTokens() && tokenizer.GetNextToken().Upper() == deviceType
&& tokenizer.HasMoreTokens() && tokenizer.GetNextToken().Upper() == channelType )
{
return type;
}
}
else if( boost::starts_with( boost::to_upper_copy( aTypeString ), typePrefix ) )
{
if( version != aVersion )
continue;
if( level == readLevel )
return type;
if( aSkipDefaultLevel )
continue;
if( isDefaultLevel && aLevel == "" )
return type;
}
}
// If the type string is not recognized, demote to a raw Spice element. This way the user won't
// have an error if there is a type KiCad does not recognize.
return SIM_MODEL::TYPE::RAWSPICE;
}
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