move PCB_PARSER into PCB_IO as a member

include/dsnlexer.h

@@ -204,12 +204,14 @@ public:
      *
      * @param aKeywordTable is an array of KEYWORDS holding \a aKeywordCount.  This
      *  token table need not contain the lexer separators such as '(' ')', etc.
+     *
      * @param aKeywordCount is the count of tokens in aKeywordTable.
+     *
      * @param aLineReader is any subclassed instance of LINE_READER, such as
-     *  STRING_LINE_READER or FILE_LINE_READER.
+     *  STRING_LINE_READER or FILE_LINE_READER.  No ownership is taken.
      */
     DSNLEXER( const KEYWORD* aKeywordTable, unsigned aKeywordCount,
-              LINE_READER* aLineReader );
+              LINE_READER* aLineReader = NULL );
 
     virtual ~DSNLEXER();
 

pcbnew/kicad_plugin.cpp

@@ -241,11 +241,12 @@ void FP_CACHE::Load()
 
         // reader now owns fp, will close on exception or return
         FILE_LINE_READER    reader( fp, fpFileName );
-        PCB_PARSER          parser( &reader );
+
+        m_owner->m_parser->SetLineReader( &reader );
 
         std::string name = TO_UTF8( fpFileName );
 
-        m_modules.insert( name, new FP_CACHE_ITEM( (MODULE*) parser.Parse(), fpFileName ) );
+        m_modules.insert( name, new FP_CACHE_ITEM( (MODULE*) m_owner->m_parser->Parse(), fpFileName ) );
 
     } while( dir.GetNext( &fpFileName ) );
 
@@ -339,9 +340,9 @@ BOARD_ITEM* PCB_IO::Parse( const wxString& aClipboardSourceInput ) throw( IO_ERR
 
     STRING_LINE_READER  reader( input, wxT( "clipboard" ) );
 
-    PCB_PARSER  parser( &reader );
+    m_parser->SetLineReader( &reader );
 
-    return parser.Parse();
+    return m_parser->Parse();
 }
 
 
@@ -1466,7 +1467,8 @@ void PCB_IO::format( ZONE_CONTAINER* aZone, int aNestLevel ) const
 
 PCB_IO::PCB_IO() :
     m_cache( 0 ),
-    m_ctl( 0 )
+    m_ctl( 0 ),
+    m_parser( new PCB_PARSER() )
 {
     init( 0 );
     m_out = &m_sf;
@@ -1475,7 +1477,8 @@ PCB_IO::PCB_IO() :
 
 PCB_IO::PCB_IO( int aControlFlags ) :
     m_cache( 0 ),
-    m_ctl( aControlFlags )
+    m_ctl( aControlFlags ),
+    m_parser( new PCB_PARSER() )
 {
     init( 0 );
     m_out = &m_sf;
@@ -1485,6 +1488,7 @@ PCB_IO::PCB_IO( int aControlFlags ) :
 PCB_IO::~PCB_IO()
 {
     delete m_cache;
+    delete m_parser;
 }
 
 
@@ -1499,9 +1503,11 @@ BOARD* PCB_IO::Load( const wxString& aFileName, BOARD* aAppendToMe, PROPERTIES*
     }
 
     FILE_LINE_READER    reader( file.fp(), aFileName );
-    PCB_PARSER          parser( &reader, aAppendToMe );
 
-    BOARD* board = dynamic_cast<BOARD*>( parser.Parse() );
+    m_parser->SetLineReader( &reader );
+    m_parser->SetBoard( aAppendToMe );
+
+    BOARD* board = dynamic_cast<BOARD*>( m_parser->Parse() );
     wxASSERT( board );
 
     // Give the filename to the board if it's new

pcbnew/kicad_plugin.h

@@ -30,6 +30,7 @@
 class BOARD;
 class BOARD_ITEM;
 class FP_CACHE;
+class PCB_PARSER;
 
 
 /** Current s-expression file format version.  2 was the last legacy format version. */
@@ -47,6 +48,8 @@ class FP_CACHE;
  */
 class PCB_IO : public PLUGIN
 {
+    friend class FP_CACHE;
+
 
 public:
 
@@ -133,6 +136,7 @@ protected:
     STRING_FORMATTER    m_sf;
     OUTPUTFORMATTER*    m_out;      ///< output any Format()s to this, no ownership
     int                 m_ctl;
+    PCB_PARSER*         m_parser;
 
 
 private:

pcbnew/pcb_parser.cpp

@@ -51,6 +51,15 @@
 
 using namespace std;
 
+
+void PCB_PARSER::init()
+{
+    m_layerMap.clear();
+
+    // @todo add default layernames here.
+}
+
+
 double PCB_PARSER::parseDouble() throw( IO_ERROR )
 {
     char* tmp;

pcbnew/pcb_parser.h

@@ -66,6 +66,15 @@ class PCB_PARSER : public PCB_LEXER
     BOARD*          m_board;
     LAYER_HASH_MAP  m_layerMap;  //< Map layer name to it's index saved in BOARD::m_Layer.
 
+
+    /**
+     * Function init
+     * clears and re-establishes m_layerMap with the default layer names.
+     * m_layerMap will have some of its entries overwritten whenever a (new) board
+     * is encountered.
+     */
+    void init();
+
     void parseHeader() throw( IO_ERROR, PARSE_ERROR );
     void parseGeneralSection() throw( IO_ERROR, PARSE_ERROR );
     void parsePAGE_INFO() throw( IO_ERROR, PARSE_ERROR );
@@ -204,13 +213,35 @@ class PCB_PARSER : public PCB_LEXER
 
     bool parseBool() throw( PARSE_ERROR );
 
+
 public:
-    PCB_PARSER( LINE_READER* aReader, BOARD* aBoard = NULL ) :
+
+    PCB_PARSER( LINE_READER* aReader = NULL ) :
         PCB_LEXER( aReader ),
-        m_board( aBoard )
+        m_board( 0 )
     {
     }
 
+
+    /**
+     * Functoin SetLineReader
+     * sets @a aLineReader into the parser, and returns the previous one, if any.
+     * @param aReader is what to read from for tokens, no ownership is received.
+     * @return LINE_READER* - previous LINE_READER or NULL if none.
+     */
+    LINE_READER* SetLineReader( LINE_READER* aReader )
+    {
+        LINE_READER* ret = PopReader();
+        PushReader( aReader );
+        return ret;
+    }
+
+    void SetBoard( BOARD* aBoard )
+    {
+        init();
+        m_board = aBoard;
+    }
+
     BOARD_ITEM* Parse() throw( IO_ERROR, PARSE_ERROR );
 };