Merge pull request #3 from saurabhb17/master

secondary files

1 files changed, 789 insertions, 0 deletions

diff --git a/common/fp_lib_table.cpp b/common/fp_lib_table.cpp
new file mode 100644
index 0000000..d9fc1e7
--- /dev/null
+++ b/common/fp_lib_table.cpp
@@ -0,0 +1,789 @@
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2010-2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
+ * Copyright (C) 2012 Wayne Stambaugh <stambaughw@verizon.net>
+ * Copyright (C) 2012-2015 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 <wx/config.h>      // wxExpandEnvVars()
+#include <wx/filename.h>
+#include <wx/stdpaths.h>
+
+#include <set>
+
+//#include <pgm_base.h>
+#include <kiface_i.h>
+#include <search_stack.h>
+#include <pcb_netlist.h>
+#include <reporter.h>
+#include <footprint_info.h>
+#include <wildcards_and_files_ext.h>
+#include <fpid.h>
+#include <fp_lib_table_lexer.h>
+#include <fp_lib_table.h>
+#include <class_module.h>
+
+using namespace FP_LIB_TABLE_T;
+
+
+static const wxChar global_tbl_name[] = wxT( "fp-lib-table" );
+
+
+void FP_LIB_TABLE::ROW::SetType( const wxString& aType )
+{
+    type = IO_MGR::EnumFromStr( aType );
+
+    if( IO_MGR::PCB_FILE_T( -1 ) == type )
+        type = IO_MGR::KICAD;
+}
+
+
+void FP_LIB_TABLE::ROW::SetFullURI( const wxString& aFullURI )
+{
+    uri_user = aFullURI;
+
+#if !FP_LATE_ENVVAR
+    uri_expanded = FP_LIB_TABLE::ExpandSubstitutions( aFullURI );
+#endif
+}
+
+
+const wxString FP_LIB_TABLE::ROW::GetFullURI( bool aSubstituted ) const
+{
+    if( aSubstituted )
+    {
+#if !FP_LATE_ENVVAR         // early expansion
+        return uri_expanded;
+
+#else   // late expansion
+        return FP_LIB_TABLE::ExpandSubstitutions( uri_user );
+#endif
+    }
+    else
+        return uri_user;
+}
+
+
+FP_LIB_TABLE::ROW::ROW( const ROW& a ) :
+    nickName( a.nickName ),
+    type( a.type ),
+    options( a.options ),
+    description( a.description ),
+    properties( 0 )
+{
+    // may call ExpandSubstitutions()
+    SetFullURI( a.uri_user );
+
+    if( a.properties )
+        properties = new PROPERTIES( *a.properties );
+}
+
+
+FP_LIB_TABLE::ROW& FP_LIB_TABLE::ROW::operator=( const ROW& r )
+{
+    nickName     = r.nickName;
+    type         = r.type;
+    options      = r.options;
+    description  = r.description;
+    properties   = r.properties ? new PROPERTIES( *r.properties ) : NULL;
+
+    // may call ExpandSubstitutions()
+    SetFullURI( r.uri_user );
+
+    // Do not copy the PLUGIN, it is lazily created.  Delete any existing
+    // destination plugin.
+    setPlugin( NULL );
+
+    return *this;
+}
+
+
+bool FP_LIB_TABLE::ROW::operator==( const ROW& r ) const
+{
+    return nickName == r.nickName
+        && uri_user == r.uri_user
+        && type == r.type
+        && options == r.options
+        && description == r.description
+        ;
+}
+
+
+FP_LIB_TABLE::FP_LIB_TABLE( FP_LIB_TABLE* aFallBackTable ) :
+    fallBack( aFallBackTable )
+{
+    // not copying fall back, simply search aFallBackTable separately
+    // if "nickName not found".
+}
+
+
+FP_LIB_TABLE::~FP_LIB_TABLE()
+{
+    // *fallBack is not owned here.
+}
+
+
+wxArrayString FP_LIB_TABLE::FootprintEnumerate( const wxString& aNickname )
+{
+    const ROW* row = FindRow( aNickname );
+    wxASSERT( (PLUGIN*) row->plugin );
+    return row->plugin->FootprintEnumerate( row->GetFullURI( true ), row->GetProperties() );
+}
+
+
+MODULE* FP_LIB_TABLE::FootprintLoad( const wxString& aNickname, const wxString& aFootprintName )
+{
+    const ROW* row = FindRow( aNickname );
+    wxASSERT( (PLUGIN*) row->plugin );
+
+    MODULE* ret = row->plugin->FootprintLoad( row->GetFullURI( true ), aFootprintName, row->GetProperties() );
+
+    // The library cannot know its own name, because it might have been renamed or moved.
+    // Therefore footprints cannot know their own library nickname when residing in
+    // a footprint library.
+    // Only at this API layer can we tell the footprint about its actual library nickname.
+    if( ret )
+    {
+        // remove "const"-ness, I really do want to set nickname without
+        // having to copy the FPID and its two strings, twice each.
+        FPID& fpid = (FPID&) ret->GetFPID();
+
+        // Catch any misbehaving plugin, which should be setting internal footprint name properly:
+        wxASSERT( aFootprintName == (wxString) fpid.GetFootprintName() );
+
+        // and clearing nickname
+        wxASSERT( !fpid.GetLibNickname().size() );
+
+        fpid.SetLibNickname( row->GetNickName() );
+    }
+
+    return ret;
+}
+
+
+FP_LIB_TABLE::SAVE_T FP_LIB_TABLE::FootprintSave( const wxString& aNickname, const MODULE* aFootprint, bool aOverwrite )
+{
+    const ROW* row = FindRow( aNickname );
+    wxASSERT( (PLUGIN*) row->plugin );
+
+    if( !aOverwrite )
+    {
+        // Try loading the footprint to see if it already exists, caller wants overwrite
+        // protection, which is atypical, not the default.
+
+        wxString fpname = aFootprint->GetFPID().GetFootprintName();
+
+        std::auto_ptr<MODULE>   m( row->plugin->FootprintLoad( row->GetFullURI( true ), fpname, row->GetProperties() ) );
+
+        if( m.get() )
+            return SAVE_SKIPPED;
+    }
+
+    row->plugin->FootprintSave( row->GetFullURI( true ), aFootprint, row->GetProperties() );
+
+    return SAVE_OK;
+}
+
+
+void FP_LIB_TABLE::FootprintDelete( const wxString& aNickname, const wxString& aFootprintName )
+{
+    const ROW* row = FindRow( aNickname );
+    wxASSERT( (PLUGIN*) row->plugin );
+    return row->plugin->FootprintDelete( row->GetFullURI( true ), aFootprintName, row->GetProperties() );
+}
+
+
+bool FP_LIB_TABLE::IsFootprintLibWritable( const wxString& aNickname )
+{
+    const ROW* row = FindRow( aNickname );
+    wxASSERT( (PLUGIN*) row->plugin );
+    return row->plugin->IsFootprintLibWritable( row->GetFullURI( true ) );
+}
+
+
+void FP_LIB_TABLE::FootprintLibDelete( const wxString& aNickname )
+{
+    const ROW* row = FindRow( aNickname );
+    wxASSERT( (PLUGIN*) row->plugin );
+    row->plugin->FootprintLibDelete( row->GetFullURI( true ), row->GetProperties() );
+}
+
+
+void FP_LIB_TABLE::FootprintLibCreate( const wxString& aNickname )
+{
+    const ROW* row = FindRow( aNickname );
+    wxASSERT( (PLUGIN*) row->plugin );
+    row->plugin->FootprintLibCreate( row->GetFullURI( true ), row->GetProperties() );
+}
+
+
+const wxString FP_LIB_TABLE::GetDescription( const wxString& aNickname )
+{
+    // use "no exception" form of find row:
+    const ROW* row = findRow( aNickname );
+    if( row )
+        return row->description;
+    else
+        return wxEmptyString;
+}
+
+
+void FP_LIB_TABLE::Parse( FP_LIB_TABLE_LEXER* in ) throw( IO_ERROR, PARSE_ERROR )
+{
+    /*
+        (fp_lib_table
+            (lib (name NICKNAME)(descr DESCRIPTION)(type TYPE)(full_uri FULL_URI)(options OPTIONS))
+            :
+        )
+
+        Elements after (name) are order independent.
+    */
+
+    T       tok;
+    wxString errMsg;    // to collect error messages
+
+    // This table may be nested within a larger s-expression, or not.
+    // Allow for parser of that optional containing s-epression to have looked ahead.
+    if( in->CurTok() != T_fp_lib_table )
+    {
+        in->NeedLEFT();
+        if( ( tok = in->NextTok() ) != T_fp_lib_table )
+            in->Expecting( T_fp_lib_table );
+    }
+
+    while( ( tok = in->NextTok() ) != T_RIGHT )
+    {
+        ROW     row;        // reconstructed for each row in input stream.
+
+        if( tok == T_EOF )
+            in->Expecting( T_RIGHT );
+
+        if( tok != T_LEFT )
+            in->Expecting( T_LEFT );
+
+        if( ( tok = in->NextTok() ) != T_lib )
+            in->Expecting( T_lib );
+
+        // (name NICKNAME)
+        in->NeedLEFT();
+
+        if( ( tok = in->NextTok() ) != T_name )
+            in->Expecting( T_name );
+
+        in->NeedSYMBOLorNUMBER();
+
+        row.SetNickName( in->FromUTF8() );
+
+        in->NeedRIGHT();
+
+        // After (name), remaining (lib) elements are order independent, and in
+        // some cases optional.
+        bool    sawType = false;
+        bool    sawOpts = false;
+        bool    sawDesc = false;
+        bool    sawUri  = false;
+
+        while( ( tok = in->NextTok() ) != T_RIGHT )
+        {
+            if( tok == T_EOF )
+                in->Unexpected( T_EOF );
+
+            if( tok != T_LEFT )
+                in->Expecting( T_LEFT );
+
+            tok = in->NeedSYMBOLorNUMBER();
+
+            switch( tok )
+            {
+            case T_uri:
+                if( sawUri )
+                    in->Duplicate( tok );
+                sawUri = true;
+                in->NeedSYMBOLorNUMBER();
+                // Saved path and file names use the Unix notation (separator = '/')
+                // However old files, and files edited by hand can use the windows
+                // separator. Force the unix notation.
+                // (It works on windows, and moreover, wxFileName and wxDir takes care to that
+                // on windows)
+                // moreover, URLs use the '/' as separator
+                {
+                wxString uri = in->FromUTF8();
+                uri.Replace( '\\', '/' );
+                row.SetFullURI( uri );
+                }
+                break;
+
+            case T_type:
+                if( sawType )
+                    in->Duplicate( tok );
+                sawType = true;
+                in->NeedSYMBOLorNUMBER();
+                row.SetType( in->FromUTF8() );
+                break;
+
+            case T_options:
+                if( sawOpts )
+                    in->Duplicate( tok );
+                sawOpts = true;
+                in->NeedSYMBOLorNUMBER();
+                row.SetOptions( in->FromUTF8() );
+                break;
+
+            case T_descr:
+                if( sawDesc )
+                    in->Duplicate( tok );
+                sawDesc = true;
+                in->NeedSYMBOLorNUMBER();
+                row.SetDescr( in->FromUTF8() );
+                break;
+
+            default:
+                in->Unexpected( tok );
+            }
+
+            in->NeedRIGHT();
+        }
+
+        if( !sawType )
+            in->Expecting( T_type );
+
+        if( !sawUri )
+            in->Expecting( T_uri );
+
+        // all nickNames within this table fragment must be unique, so we do not
+        // use doReplace in InsertRow().  (However a fallBack table can have a
+        // conflicting nickName and ours will supercede that one since in
+        // FindLib() we search this table before any fall back.)
+        if( !InsertRow( row ) )
+        {
+            wxString msg = wxString::Format(
+                                _( "'%s' is a duplicate footprint library nickName" ),
+                                GetChars( row.nickName ) );
+            if( !errMsg.IsEmpty() )
+                errMsg << '\n';
+
+            errMsg << msg;
+        }
+    }
+
+    if( !errMsg.IsEmpty() )
+        THROW_IO_ERROR( errMsg );
+}
+
+
+void FP_LIB_TABLE::Format( OUTPUTFORMATTER* out, int nestLevel ) const
+    throw( IO_ERROR, boost::interprocess::lock_exception )
+{
+    out->Print( nestLevel, "(fp_lib_table\n" );
+
+    for( ROWS_CITER it = rows.begin();  it != rows.end();  ++it )
+        it->Format( out, nestLevel+1 );
+
+    out->Print( nestLevel, ")\n" );
+}
+
+
+void FP_LIB_TABLE::ROW::Format( OUTPUTFORMATTER* out, int nestLevel ) const
+    throw( IO_ERROR, boost::interprocess::lock_exception )
+{
+    // In Kicad, we save path and file names using the Unix notation (separator = '/')
+    // So ensure separator is always '/' is saved URI string
+    wxString uri = GetFullURI();
+    uri.Replace( '\\', '/' );
+
+    out->Print( nestLevel, "(lib (name %s)(type %s)(uri %s)(options %s)(descr %s))\n",
+                out->Quotew( GetNickName() ).c_str(),
+                out->Quotew( GetType() ).c_str(),
+                out->Quotew( uri ).c_str(),
+                out->Quotew( GetOptions() ).c_str(),
+                out->Quotew( GetDescr() ).c_str()
+                );
+}
+
+#define OPT_SEP     '|'         ///< options separator character
+
+PROPERTIES* FP_LIB_TABLE::ParseOptions( const std::string& aOptionsList )
+{
+    if( aOptionsList.size() )
+    {
+        const char* cp  = &aOptionsList[0];
+        const char* end = cp + aOptionsList.size();
+
+        PROPERTIES  props;
+        std::string pair;
+
+        // Parse all name=value pairs
+        while( cp < end )
+        {
+            pair.clear();
+
+            // Skip leading white space.
+            while( cp < end && isspace( *cp )  )
+                ++cp;
+
+            // Find the end of pair/field
+            while( cp < end )
+            {
+                if( *cp=='\\'  &&  cp+1<end  &&  cp[1]==OPT_SEP  )
+                {
+                    ++cp;           // skip the escape
+                    pair += *cp++;  // add the separator
+                }
+                else if( *cp==OPT_SEP )
+                {
+                    ++cp;           // skip the separator
+                    break;          // process the pair
+                }
+                else
+                    pair += *cp++;
+            }
+
+            // stash the pair
+            if( pair.size() )
+            {
+                // first equals sign separates 'name' and 'value'.
+                size_t  eqNdx = pair.find( '=' );
+                if( eqNdx != pair.npos )
+                {
+                    std::string name  = pair.substr( 0, eqNdx );
+                    std::string value = pair.substr( eqNdx + 1 );
+                    props[name] = value;
+                }
+                else
+                    props[pair] = "";       // property is present, but with no value.
+            }
+        }
+
+        if( props.size() )
+            return new PROPERTIES( props );
+    }
+    return NULL;
+}
+
+
+UTF8 FP_LIB_TABLE::FormatOptions( const PROPERTIES* aProperties )
+{
+    UTF8 ret;
+
+    if( aProperties )
+    {
+        for( PROPERTIES::const_iterator it = aProperties->begin();  it != aProperties->end();  ++it )
+        {
+            const std::string& name  = it->first;
+
+            const UTF8& value = it->second;
+
+            if( ret.size() )
+                ret += OPT_SEP;
+
+            ret += name;
+
+            // the separation between name and value is '='
+            if( value.size() )
+            {
+                ret += '=';
+
+                for( std::string::const_iterator si = value.begin();  si != value.end();  ++si )
+                {
+                    // escape any separator in the value.
+                    if( *si == OPT_SEP )
+                        ret += '\\';
+
+                    ret += *si;
+                }
+            }
+        }
+    }
+
+    return ret;
+}
+
+
+std::vector<wxString> FP_LIB_TABLE::GetLogicalLibs()
+{
+    // Only return unique logical library names.  Use std::set::insert() to
+    // quietly reject any duplicates, which can happen when encountering a duplicate
+    // nickname from one of the fall back table(s).
+
+    std::set<wxString>          unique;
+    std::vector<wxString>       ret;
+    const FP_LIB_TABLE*         cur = this;
+
+    do
+    {
+        for( ROWS_CITER it = cur->rows.begin();  it!=cur->rows.end();  ++it )
+        {
+            unique.insert( it->nickName );
+        }
+
+    } while( ( cur = cur->fallBack ) != 0 );
+
+    ret.reserve( unique.size() );
+
+    // DBG(printf( "%s: count:%zd\n", __func__, unique.size() );)
+
+    // return a sorted, unique set of nicknames in a std::vector<wxString> to caller
+    for( std::set<wxString>::const_iterator it = unique.begin();  it!=unique.end();  ++it )
+    {
+        //DBG(printf( " %s\n", TO_UTF8( *it ) );)
+        ret.push_back( *it );
+    }
+
+    return ret;
+}
+
+
+FP_LIB_TABLE::ROW* FP_LIB_TABLE::findRow( const wxString& aNickName ) const
+{
+    FP_LIB_TABLE* cur = (FP_LIB_TABLE*) this;
+
+    do
+    {
+        cur->ensureIndex();
+
+        INDEX_CITER  it = cur->nickIndex.find( aNickName );
+
+        if( it != cur->nickIndex.end() )
+        {
+            return &cur->rows[it->second];  // found
+        }
+
+        // not found, search fall back table(s), if any
+    } while( ( cur = cur->fallBack ) != 0 );
+
+    return 0;   // not found
+}
+
+
+const FP_LIB_TABLE::ROW* FP_LIB_TABLE::FindRowByURI( const wxString& aURI )
+{
+    FP_LIB_TABLE* cur = this;
+
+    do
+    {
+        cur->ensureIndex();
+
+        for( unsigned i = 0;  i < cur->rows.size();  i++ )
+        {
+            wxString uri = cur->rows[i].GetFullURI( true );
+
+            if( wxFileName::GetPathSeparator() == wxChar( '\\' ) && uri.Find( wxChar( '/' ) ) >= 0 )
+                uri.Replace( wxT( "/" ), wxT( "\\" ) );
+
+            if( (wxFileName::IsCaseSensitive() && uri == aURI)
+              || (!wxFileName::IsCaseSensitive() && uri.Upper() == aURI.Upper() ) )
+            {
+                return &cur->rows[i];  // found
+            }
+        }
+
+        // not found, search fall back table(s), if any
+    } while( ( cur = cur->fallBack ) != 0 );
+
+    return 0;   // not found
+}
+
+
+bool FP_LIB_TABLE::InsertRow( const ROW& aRow, bool doReplace )
+{
+    ensureIndex();
+
+    INDEX_CITER it = nickIndex.find( aRow.nickName );
+
+    if( it == nickIndex.end() )
+    {
+        rows.push_back( aRow );
+        nickIndex.insert( INDEX_VALUE( aRow.nickName, rows.size() - 1 ) );
+        return true;
+    }
+
+    if( doReplace )
+    {
+        rows[it->second] = aRow;
+        return true;
+    }
+
+    return false;
+}
+
+
+const FP_LIB_TABLE::ROW* FP_LIB_TABLE::FindRow( const wxString& aNickname )
+    throw( IO_ERROR )
+{
+    ROW* row = findRow( aNickname );
+
+    if( !row )
+    {
+        wxString msg = wxString::Format(
+            _( "fp-lib-table files contain no lib with nickname '%s'" ),
+            GetChars( aNickname ) );
+
+        THROW_IO_ERROR( msg );
+    }
+
+    // We've been 'lazy' up until now, but it cannot be deferred any longer,
+    // instantiate a PLUGIN of the proper kind if it is not already in this ROW.
+    if( !row->plugin )
+        row->setPlugin( IO_MGR::PluginFind( row->type ) );
+
+    return row;
+}
+
+
+// wxGetenv( wchar_t* ) is not re-entrant on linux.
+// Put a lock on multithreaded use of wxGetenv( wchar_t* ), called from wxEpandEnvVars(),
+// needed by bool ReadFootprintFiles( FP_LIB_TABLE* aTable, const wxString* aNickname = NULL );
+#include <ki_mutex.h>
+
+const wxString FP_LIB_TABLE::ExpandSubstitutions( const wxString& aString )
+{
+// Duplicate code: the same is now in common.cpp, due to the fact it is used
+// in many other places than FP_LIB_TABLE
+#if 0
+    static MUTEX    getenv_mutex;
+
+    MUTLOCK lock( getenv_mutex );
+
+    // We reserve the right to do this another way, by providing our own member
+    // function.
+    return wxExpandEnvVars( aString );
+#else
+    return ExpandEnvVarSubstitutions( aString );
+#endif
+}
+
+
+bool FP_LIB_TABLE::IsEmpty( bool aIncludeFallback )
+{
+    if( !aIncludeFallback || !fallBack )
+        return rows.empty();
+
+    return rows.empty() && fallBack->IsEmpty( true );
+}
+
+
+MODULE* FP_LIB_TABLE::FootprintLoadWithOptionalNickname( const FPID& aFootprintId )
+    throw( IO_ERROR, PARSE_ERROR, boost::interprocess::lock_exception )
+{
+    wxString   nickname = aFootprintId.GetLibNickname();
+    wxString   fpname   = aFootprintId.GetFootprintName();
+
+    if( nickname.size() )
+    {
+        return FootprintLoad( nickname, fpname );
+    }
+
+    // nickname is empty, sequentially search (alphabetically) all libs/nicks for first match:
+    else
+    {
+        std::vector<wxString> nicks = GetLogicalLibs();
+
+        // Search each library going through libraries alphabetically.
+        for( unsigned i = 0;  i<nicks.size();  ++i )
+        {
+            // FootprintLoad() returns NULL on not found, does not throw exception
+            // unless there's an IO_ERROR.
+            MODULE* ret = FootprintLoad( nicks[i], fpname );
+            if( ret )
+                return ret;
+        }
+
+        return NULL;
+    }
+}
+
+
+const wxString FP_LIB_TABLE::GlobalPathEnvVariableName()
+{
+    return  wxT( "KISYSMOD" );
+}
+
+
+bool FP_LIB_TABLE::LoadGlobalTable( FP_LIB_TABLE& aTable )
+    throw (IO_ERROR, PARSE_ERROR, boost::interprocess::lock_exception )
+{
+    bool        tableExists = true;
+    wxFileName  fn = GetGlobalTableFileName();
+
+    if( !fn.FileExists() )
+    {
+        tableExists = false;
+
+        if( !fn.DirExists() && !fn.Mkdir( 0x777, wxPATH_MKDIR_FULL ) )
+        {
+            THROW_IO_ERROR( wxString::Format( _( "Cannot create global library table path '%s'." ),
+                                              GetChars( fn.GetPath() ) ) );
+        }
+
+        // Attempt to copy the default global file table from the KiCad
+        // template folder to the user's home configuration path.
+        wxString fileName = Kiface().KifaceSearch().FindValidPath( global_tbl_name );
+
+        // The fallback is to create an empty global footprint table for the user to populate.
+        if( fileName.IsEmpty() || !::wxCopyFile( fileName, fn.GetFullPath(), false ) )
+        {
+            FP_LIB_TABLE    emptyTable;
+
+            emptyTable.Save( fn.GetFullPath() );
+        }
+    }
+
+    aTable.Load( fn.GetFullPath() );
+
+    return tableExists;
+}
+
+
+wxString FP_LIB_TABLE::GetGlobalTableFileName()
+{
+    wxFileName fn;
+
+    fn.SetPath( GetKicadConfigPath() );
+    fn.SetName( global_tbl_name );
+
+    return fn.GetFullPath();
+}
+
+// prefer wxString filename so it can be seen in a debugger easier than wxFileName.
+
+void FP_LIB_TABLE::Load( const wxString& aFileName )
+    throw( IO_ERROR )
+{
+    // It's OK if footprint library tables are missing.
+    if( wxFileName::IsFileReadable( aFileName ) )
+    {
+        FILE_LINE_READER    reader( aFileName );
+        FP_LIB_TABLE_LEXER  lexer( &reader );
+
+        Parse( &lexer );
+    }
+}
+
+
+void FP_LIB_TABLE::Save( const wxString& aFileName )
+    const throw( IO_ERROR, boost::interprocess::lock_exception )
+{
+    FILE_OUTPUTFORMATTER sf( aFileName );
+    Format( &sf, 0 );
+}
+