bds.fx2.prgc/src.prgc/grammar/prgParser.g

unit prgParser;

// ----------------------------------------------------------------------------
// This section is used for generating "uses" clause in the unit 'prgParser'.
// Every unit name must be terminated with ';'
// e.g:
// 
// uses
// {
//    Classes;
//    SysUtils;
// }
// ----------------------------------------------------------------------------
uses
{
   Classes;
}

// ----------------------------------------------------------------------------
// This section is used for generating "const" clause in the unit 'prgParser'.
// The content of the section is verbatim copied into the generated code.
// ----------------------------------------------------------------------------
//const
//{
//}

// ----------------------------------------------------------------------------
// This section is used for generating "type" clause in the unit 'prgParser'.
// The content of the section is verbatim copied into the generated code.
// ----------------------------------------------------------------------------
type
{
   TprgCommand =
   (
      cmdNone,
      cmdList,
      cmdListDSOs,
      cmdListJTAGs,
      cmdListFX2s,
      cmdListDSO,
      cmdListJTAG,
      cmdProgramDSO,
      cmdProgramJTAG,
      cmdProgramFX2,
      cmdProgramFX2Perm,
      cmdEepromDump,
      cmdEepromRead,
      cmdEepromWrite
   );
}

// ============================================================================
// Parser class declaration
// ============================================================================
parser TprgParser;
// ----------------------------------------------------------------------------
// Parser options
// ----------------------------------------------------------------------------
options
{
   k = 2;
   importVocab = prgLexer;
   exportVocab = prgParser;
}

// ----------------------------------------------------------------------------
// Parser member declarations.
// All user defined member declarations should be placed here.
// The content of the section is verbatim copied into the generated code.
// ----------------------------------------------------------------------------
memberdecl
{
   protected
      fCommand : TprgCommand;
      fDevice  : string;
      fFiles   : TStringList;
      fVerbose : string;

   private
      function    GetFileCount: integer;
      function    GetFile( Idx: integer): string;
      
   public
      procedure   AfterConstruction; override;
      procedure   BeforeDestruction; override;
      
   public
      property    Command           : TprgCommand  read  fCommand;
      property    Verbose           : string       read  fVerbose;
      property    DeviceID          : string       read  fDevice;
      property    FileCount         : integer      read  GetFileCount;
      property    Files[i:integer]  : string       read  GetFile;
}

// ============================================================================
// Begin rule definitions
//
// Remember: All parser rule names must begin with LOWERCASE letter!
// ============================================================================
prg
{
   fCommand := cmdNone;
   fVerbose := '';
   fDevice  := '';
}
   :  "/list"
      {
         fCommand := cmdList;
      }
   |
      (
         "fx2" (WS)?
         (
            "/list"
            {
               fCommand := cmdListFX2s;
            }
            
         |  "/loc" COLON (x:INT | x:REXP) EQ prgfile
            {
               fCommand := cmdProgramFX2;
               fDevice  := x.TokenText;
            }
            (
               "/perm"
               {
                  fCommand := cmdProgramFX2Perm;
               }
            )?
         )
      )
   |
      (
         "dso"    { fCommand  := cmdListDSOs;   }
      |  "jtag"   { fCommand  := cmdListJTAGs;  }
      )
      (WS)?
      (
         "/id"
         COLON
         x:ID     { fDevice   := x.TokenText;   }
         {
            if fCommand = cmdListDSOs  then fCommand := cmdListDSO;
            if fCommand = cmdListJTAGs then fCommand := cmdListJTAG;
         }
         (WS)?
      )?

      (
         "/list"
      |  EQ prgfile
         {
            if fCommand = cmdListDSO  then fCommand := cmdProgramDSO;
            if fCommand = cmdListJTAG then fCommand := cmdProgramJTAG;
         }
         (
            v:"/v"   { fVerbose := '0';   }
         |  v:"/v1"  { fVerbose := '1';   }
         )?
      )
   ;

//prgfiles:
//   (prgfile)+
//   ;
   
prgfile
local
{
   pos   : AnsiString;
   name  : AnsiString;
}
{
   pos   := '0';
   name  := '';
}
   :  x:QID                 { name   := x.TokenText;               }
//      SLASH "pos" COLON
//      x:INT                { pos    := x.TokenText;   }
      {
         fFiles.Add(pos+'='+name);
      }
      ;



// ============================================================================
// End rule definitions
// ============================================================================

// ----------------------------------------------------------------------------
// This section is used for generating member defintions in the unit 'prgParser'.
// The content of the section is verbatim copied into the generated code.
// ----------------------------------------------------------------------------
memberdef
{
// ============================================================================
// After construction
// ============================================================================
procedure TprgParser.AfterConstruction;
begin
   inherited;
   fFiles := TStringList.Create
end;

// ============================================================================
// Before Destruction
// ============================================================================
procedure TprgParser.BeforeDestruction;
begin
   fFiles.Free;
   inherited
end;

// ============================================================================
// Get File Count
// ============================================================================
function TprgParser.GetFileCount: integer;
begin
   result := fFiles.Count
end;

// ============================================================================
// Get File
// ============================================================================
function TprgParser.GetFile( Idx: integer): string;
var
   i: integer;
   p: integer;
   
begin
   result := '';
   
   for i:=0 to fFiles.Count -1 do
   begin
      p := StrToIntDef( fFiles.Names[i], -1);
      
      if p = Idx then
      begin
         result := fFiles.ValueFromIndex[i];
         break;
      end
   end;
end;

}