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kicad/pcbnew/netlist_reader/kicad_netlist_reader.cpp

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/**
* @file kicad_netlist_reader.cpp
*/
/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 1992-2011 Jean-Pierre Charras.
* Copyright (C) 1992-2020 KiCad Developers, see change_log.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
*/
#include <wx/wx.h>
#include <netlist_lexer.h> // netlist_lexer is common to Eeschema and Pcbnew
#include <macros.h>
#include "pcb_netlist.h"
#include "netlist_reader.h"
using namespace NL_T;
void KICAD_NETLIST_READER::LoadNetlist()
{
m_parser->Parse();
if( m_footprintReader )
{
m_footprintReader->Load( m_netlist );
// Sort the component pins so they are in the same order as the legacy format. This
// is useful for comparing legacy and s-expression netlist dumps.
for( unsigned i = 0; i < m_netlist->GetCount(); i++ )
m_netlist->GetComponent( i )->SortPins();
}
}
// KICAD_NETLIST_PARSER
KICAD_NETLIST_PARSER::KICAD_NETLIST_PARSER( LINE_READER* aReader, NETLIST* aNetlist ) :
NETLIST_LEXER( aReader )
{
m_lineReader = aReader;
m_netlist = aNetlist;
token = T_NONE;
}
void KICAD_NETLIST_PARSER::skipCurrent()
{
int curr_level = 0;
while( ( token = NextTok() ) != T_EOF )
{
if( token == T_LEFT )
curr_level--;
if( token == T_RIGHT )
{
curr_level++;
if( curr_level > 0 )
return;
}
}
}
void KICAD_NETLIST_PARSER::Parse()
{
int plevel = 0; // the count of ')' to read at end of file after parsing all sections
while( ( token = NextTok() ) != T_EOF )
{
if( token == T_LEFT )
token = NextTok();
switch( token )
{
case T_export: // The netlist starts here.
// nothing to do here, just increment the count of ')' to read at end of file
plevel++;
break;
case T_version: // The netlist starts here.
// version id not yet used: read it but does not use it
NextTok();
NeedRIGHT();
break;
case T_components: // The section comp starts here.
while( ( token = NextTok() ) != T_EOF )
{
if( token == T_RIGHT )
break;
else if( token == T_LEFT )
token = NextTok();
if( token == T_comp ) // A component section found. Read it
parseComponent();
}
break;
case T_nets: // The section nets starts here.
while( ( token = NextTok() ) != T_EOF )
{
if( token == T_RIGHT )
break;
else if( token == T_LEFT )
token = NextTok();
if( token == T_net ) // A net section if found. Read it
parseNet();
}
break;
case T_libparts: // The section libparts starts here.
while( ( token = NextTok() ) != T_EOF )
{
if( token == T_RIGHT )
break;
else if( token == T_LEFT )
token = NextTok();
if( token == T_libpart ) // A libpart section if found. Read it
parseLibPartList();
}
break;
case T_libraries: // The section libraries starts here.
// List of libraries in use.
// Not used here, just skip it
skipCurrent();
break;
case T_design: // The section design starts here.
// Not used (mainly they are comments), just skip it
skipCurrent();
break;
case T_RIGHT: // The closing parenthesis of the file.
plevel--;
break;
default:
skipCurrent();
break;
}
}
if( plevel != 0 )
{
wxLogDebug( wxT( "KICAD_NETLIST_PARSER::Parse(): bad parenthesis count (count = %d"),
plevel );
}
}
void KICAD_NETLIST_PARSER::parseNet()
{
/* Parses a section like
* (net (code 20) (name /PC-A0)
* (node (ref "BUS1") (pin "62)")
* (node (ref "U3") ("pin 3") (pin_function "clock"))
* (node (ref "U9") (pin "M6") (pin_function "reset")))
*/
COMPONENT* component = NULL;
wxString code;
wxString name;
wxString reference;
wxString pin_number;
wxString pin_function;
int nodecount = 0;
// The token net was read, so the next data is (code <number>)
while( (token = NextTok()) != T_EOF )
{
if( token == T_RIGHT )
break;
else if( token == T_LEFT )
token = NextTok();
switch( token )
{
case T_code:
NeedSYMBOLorNUMBER();
code = FROM_UTF8( CurText() );
NeedRIGHT();
break;
case T_name:
NeedSYMBOLorNUMBER();
name = FROM_UTF8( CurText() );
NeedRIGHT();
if( name.IsEmpty() ) // Give a dummy net name like N-000109
name = wxT("N-00000") + code;
break;
case T_node:
pin_function.Clear(); // By default: no pin function.
while( (token = NextTok()) != T_EOF )
{
if( token == T_RIGHT )
break;
else if( token == T_LEFT )
token = NextTok();
switch( token )
{
case T_ref:
NeedSYMBOLorNUMBER();
reference = FROM_UTF8( CurText() );
NeedRIGHT();
break;
case T_pin:
NeedSYMBOLorNUMBER();
pin_number = FROM_UTF8( CurText() );
NeedRIGHT();
break;
case T_pinfunction:
NeedSYMBOLorNUMBER();
pin_function = FROM_UTF8( CurText() );
NeedRIGHT();
break;
default:
skipCurrent();
break;
}
}
component = m_netlist->GetComponentByReference( reference );
// Cannot happen if the netlist is valid.
if( component == NULL )
{
wxString msg;
msg.Printf( _( "Cannot find component with reference designator \"%s\" in netlist." ),
reference );
THROW_PARSE_ERROR( msg, m_lineReader->GetSource(), m_lineReader->Line(),
m_lineReader->LineNumber(), m_lineReader->Length() );
}
component->AddNet( pin_number, name, pin_function );
nodecount++;
break;
default:
skipCurrent();
break;
}
}
}
void KICAD_NETLIST_PARSER::parseComponent()
{
/* Parses a section like
* (comp (ref P1)
* (value DB25FEMALE)
* (footprint DB25FC)
* (libsource (lib conn) (part DB25))
* (sheetpath (names /) (tstamps /))
* (tstamp 68183921-93a5-49ac-91b0-49d05a0e1647))
*
* other fields (unused) are skipped
* A component need a reference, value, footprint name and a full time stamp
* The full time stamp is the sheetpath time stamp + the component time stamp
*/
LIB_ID fpid;
wxString footprint;
wxString ref;
wxString value;
wxString library;
wxString name;
KIID_PATH path;
KIID uuid;
// The token comp was read, so the next data is (ref P1)
while( (token = NextTok()) != T_RIGHT )
{
if( token == T_LEFT )
token = NextTok();
switch( token )
{
case T_ref:
NeedSYMBOLorNUMBER();
ref = FROM_UTF8( CurText() );
NeedRIGHT();
break;
case T_value:
NeedSYMBOLorNUMBER();
value = FROM_UTF8( CurText() );
NeedRIGHT();
break;
case T_footprint:
NeedSYMBOLorNUMBER();
footprint = FromUTF8();
NeedRIGHT();
break;
case T_libsource:
// Read libsource
while( (token = NextTok()) != T_RIGHT )
{
if( token == T_LEFT )
token = NextTok();
if( token == T_lib )
{
NeedSYMBOLorNUMBER();
library = FROM_UTF8( CurText() );
NeedRIGHT();
}
else if( token == T_part )
{
NeedSYMBOLorNUMBER();
name = FROM_UTF8( CurText() );
NeedRIGHT();
}
else if( token == T_description )
{
NeedSYMBOLorNUMBER();
NeedRIGHT();
}
else
{
Expecting( "part, lib or description" );
}
}
break;
case T_sheetpath:
while( ( token = NextTok() ) != T_EOF )
{
if( token == T_tstamps )
break;
}
NeedSYMBOLorNUMBER();
path = KIID_PATH( FROM_UTF8( CurText() ) );
NeedRIGHT();
NeedRIGHT();
break;
case T_tstamp:
NeedSYMBOLorNUMBER();
uuid = KIID( FROM_UTF8( CurText() ) );
NeedRIGHT();
break;
default:
// Skip not used data (i.e all other tokens)
skipCurrent();
break;
}
}
if( !footprint.IsEmpty() && fpid.Parse( footprint, LIB_ID::ID_PCB, true ) >= 0 )
{
wxString error;
error.Printf( _( "Invalid footprint ID in\nfile: \"%s\"\nline: %d\noffset: %d" ),
CurSource(), CurLineNumber(), CurOffset() );
THROW_IO_ERROR( error );
}
path.push_back( uuid );
COMPONENT* component = new COMPONENT( fpid, ref, value, path );
component->SetName( name );
component->SetLibrary( library );
m_netlist->AddComponent( component );
}
void KICAD_NETLIST_PARSER::parseLibPartList()
{
/* Parses a section like
* (libpart (lib device) (part C)
* (aliases
* (alias Cxx)
* (alias Cyy))
* (description "Condensateur non polarise")
* (footprints
* (fp SM*)
* (fp C?)
* (fp C1-1))
* (fields
* (field (name Reference) C)
* (field (name Value) C))
* (pins
* (pin (num 1) (name ~) (type passive))
* (pin (num 2) (name ~) (type passive))))
*
* Currently footprints section/fp are read and data stored
* other fields (unused) are skipped
*/
COMPONENT* component = NULL;
wxString libName;
wxString libPartName;
wxArrayString footprintFilters;
wxArrayString aliases;
int pinCount = 0;
// The last token read was libpart, so read the next token
while( (token = NextTok()) != T_RIGHT )
{
if( token == T_LEFT )
token = NextTok();
switch( token )
{
case T_lib:
NeedSYMBOLorNUMBER();
libName = FROM_UTF8( CurText() );
NeedRIGHT();
break;
case T_part:
NeedSYMBOLorNUMBER();
libPartName = FROM_UTF8( CurText() );
NeedRIGHT();
break;
case T_footprints:
// Read all fp elements (footprint filter item)
while( (token = NextTok()) != T_RIGHT )
{
if( token == T_LEFT )
token = NextTok();
if( token != T_fp )
Expecting( T_fp );
NeedSYMBOLorNUMBER();
footprintFilters.Add( FROM_UTF8( CurText() ) );
NeedRIGHT();
}
break;
case T_aliases:
while( (token = NextTok()) != T_RIGHT )
{
if( token == T_LEFT )
token = NextTok();
if( token != T_alias )
Expecting( T_alias );
NeedSYMBOLorNUMBER();
aliases.Add( FROM_UTF8( CurText() ) );
NeedRIGHT();
}
break;
case T_pins:
while( (token = NextTok()) != T_RIGHT )
{
if( token == T_LEFT )
token = NextTok();
if( token != T_pin )
Expecting( T_pin );
pinCount++;
skipCurrent();
}
break;
default:
// Skip not used data (i.e all other tokens)
skipCurrent();
break;
}
}
// Find all of the components that reference this component library part definition.
for( unsigned i = 0; i < m_netlist->GetCount(); i++ )
{
component = m_netlist->GetComponent( i );
if( component->IsLibSource( libName, libPartName ) )
{
component->SetFootprintFilters( footprintFilters );
component->SetPinCount( pinCount );
}
for( unsigned jj = 0; jj < aliases.GetCount(); jj++ )
{
if( component->IsLibSource( libName, aliases[jj] ) )
{
component->SetFootprintFilters( footprintFilters );
component->SetPinCount( pinCount );
}
}
}
}
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