kicad/pcbnew/legacy_netlist_reader.cpp

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/**
* @file pcbnew/legacy_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) 2013-2016 Wayne Stambaugh <stambaughw@verizon.net>.
* Copyright (C) 1992-2016 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 <fctsys.h>
#include <richio.h>
#include <kicad_string.h>
#include <pcb_netlist.h>
#include <netlist_reader.h>
void LEGACY_NETLIST_READER::LoadNetlist()
{
int state = 0;
bool is_comment = false;
COMPONENT* component = NULL;
while( m_lineReader->ReadLine() )
{
char* line = StrPurge( m_lineReader->Line() );
if( is_comment ) // Comments in progress
{
// Test for end of the current comment
if( ( line = strchr( line, '}' ) ) == NULL )
continue;
is_comment = false;
}
if( *line == '{' ) // Start Comment or Pcbnew info section
{
is_comment = true;
if( m_loadFootprintFilters && state == 0
&& (strncasecmp( line, "{ Allowed footprints", 20 ) == 0) )
{
loadFootprintFilters();
continue;
}
if( ( line = strchr( line, '}' ) ) == NULL )
continue;
}
if( *line == '(' )
state++;
if( *line == ')' )
state--;
if( state == 2 )
{
component = loadComponent( line );
continue;
}
if( state >= 3 ) // Pad descriptions are read here.
{
wxASSERT( component != NULL );
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loadNet( line, component );
state--;
}
}
if( m_footprintReader )
{
m_footprintReader->Load( m_netlist );
}
}
COMPONENT* LEGACY_NETLIST_READER::loadComponent( char* aText )
{
char* text;
wxString msg;
wxString timeStamp; // the full time stamp read from netlist
wxString footprintName; // the footprint name read from netlist
wxString value; // the component value read from netlist
wxString reference; // the component schematic reference designator read from netlist
wxString name; // the name of component that was placed in the schematic
char line[1024];
strncpy( line, aText, sizeof(line)-1 );
line[sizeof(line)-1] = '\0';
value = wxT( "~" );
// Sample component line: /40C08647 $noname R20 4.7K {Lib=R}
// Read time stamp (first word)
if( ( text = strtok( line, " ()\t\n" ) ) == NULL )
{
msg = _( "Cannot parse time stamp in component section of netlist." );
THROW_PARSE_ERROR( msg, m_lineReader->GetSource(), line, m_lineReader->LineNumber(),
m_lineReader->Length() );
}
timeStamp = FROM_UTF8( text );
// Read footprint name (second word)
if( ( text = strtok( NULL, " ()\t\n" ) ) == NULL )
{
msg = _( "Cannot parse footprint name in component section of netlist." );
THROW_PARSE_ERROR( msg, m_lineReader->GetSource(), aText, m_lineReader->LineNumber(),
m_lineReader->Length() );
}
footprintName = FROM_UTF8( text );
// The footprint name will have to be looked up in the *.cmp file.
if( footprintName == wxT( "$noname" ) )
footprintName = wxEmptyString;
// Read schematic reference designator (third word)
if( ( text = strtok( NULL, " ()\t\n" ) ) == NULL )
{
msg = _( "Cannot parse reference designator in component section of netlist." );
THROW_PARSE_ERROR( msg, m_lineReader->GetSource(), aText, m_lineReader->LineNumber(),
m_lineReader->Length() );
}
reference = FROM_UTF8( text );
// Read schematic value (forth word)
if( ( text = strtok( NULL, " ()\t\n" ) ) == NULL )
{
msg = _( "Cannot parse value in component section of netlist." );
THROW_PARSE_ERROR( msg, m_lineReader->GetSource(), aText, m_lineReader->LineNumber(),
m_lineReader->Length() );
}
value = FROM_UTF8( text );
// Read component name (fifth word) {Lib=C}
// This is an optional field (a comment), which does not always exists
if( ( text = strtok( NULL, " ()\t\n" ) ) != NULL )
{
name = FROM_UTF8( text ).AfterFirst( wxChar( '=' ) ).BeforeLast( wxChar( '}' ) );
}
LIB_ID fpid;
if( !footprintName.IsEmpty() )
fpid.SetLibItemName( footprintName );
COMPONENT* component = new COMPONENT( fpid, reference, value, timeStamp );
component->SetName( name );
m_netlist->AddComponent( component );
return component;
}
void LEGACY_NETLIST_READER::loadNet( char* aText, COMPONENT* aComponent )
{
wxString msg;
char* p;
char line[256];
strncpy( line, aText, sizeof( line ) );
line[ sizeof(line) - 1 ] = '\0';
if( ( p = strtok( line, " ()\t\n" ) ) == NULL )
{
msg = _( "Cannot parse pin name in component net section of netlist." );
THROW_PARSE_ERROR( msg, m_lineReader->GetSource(), line, m_lineReader->LineNumber(),
m_lineReader->Length() );
}
wxString pinName = FROM_UTF8( p );
if( ( p = strtok( NULL, " ()\t\n" ) ) == NULL )
{
msg = _( "Cannot parse net name in component net section of netlist." );
THROW_PARSE_ERROR( msg, m_lineReader->GetSource(), line, m_lineReader->LineNumber(),
m_lineReader->Length() );
}
wxString netName = FROM_UTF8( p );
if( (char) netName[0] == '?' ) // ? indicates no net connected to pin.
netName = wxEmptyString;
aComponent->AddNet( pinName, netName );
}
void LEGACY_NETLIST_READER::loadFootprintFilters()
{
wxArrayString filters;
wxString cmpRef;
char* line;
COMPONENT* component = NULL; // Suppress compil warning
while( ( line = m_lineReader->ReadLine() ) != NULL )
{
if( strncasecmp( line, "$endlist", 8 ) == 0 ) // end of list for the current component
{
wxASSERT( component != NULL );
component->SetFootprintFilters( filters );
component = NULL;
filters.Clear();
continue;
}
if( strncasecmp( line, "$endfootprintlist", 4 ) == 0 )
// End of this section
return;
if( strncasecmp( line, "$component", 10 ) == 0 ) // New component reference found
{
cmpRef = FROM_UTF8( line + 11 );
cmpRef.Trim( true );
cmpRef.Trim( false );
component = m_netlist->GetComponentByReference( cmpRef );
// Cannot happen if the netlist is valid.
if( component == NULL )
{
wxString msg;
msg.Printf( _( "Cannot find component \'%s\' in footprint filter section "
"of netlist." ), GetChars( cmpRef ) );
THROW_PARSE_ERROR( msg, m_lineReader->GetSource(), line, m_lineReader->LineNumber(),
m_lineReader->Length() );
}
}
else
{
// Add new filter to list
wxString fp = FROM_UTF8( line + 1 );
fp.Trim( false );
fp.Trim( true );
filters.Add( fp );
}
}
}