| 1 | unit TargetPython;
|
|---|
| 2 |
|
|---|
| 3 | interface
|
|---|
| 4 |
|
|---|
| 5 | uses
|
|---|
| 6 | Classes, SysUtils, Target, BFTarget;
|
|---|
| 7 |
|
|---|
| 8 | type
|
|---|
| 9 |
|
|---|
| 10 | { TTargetPython }
|
|---|
| 11 |
|
|---|
| 12 | TTargetPython = class(TBFTarget)
|
|---|
| 13 | private
|
|---|
| 14 | function GetMemoryCell: string;
|
|---|
| 15 | public
|
|---|
| 16 | constructor Create; override;
|
|---|
| 17 | procedure Compile; override;
|
|---|
| 18 | procedure Run; override;
|
|---|
| 19 | end;
|
|---|
| 20 |
|
|---|
| 21 |
|
|---|
| 22 | implementation
|
|---|
| 23 |
|
|---|
| 24 | { TTargetPython }
|
|---|
| 25 |
|
|---|
| 26 | constructor TTargetPython.Create;
|
|---|
| 27 | begin
|
|---|
| 28 | inherited;
|
|---|
| 29 | FName := 'Python';
|
|---|
| 30 | FSourceExtension := '.py';
|
|---|
| 31 | FCompiledExtension := '.py';
|
|---|
| 32 | FImageIndex := 26;
|
|---|
| 33 | FCapabilities := [tcCompile, tcRun];
|
|---|
| 34 | {$IFDEF WINDOWS}
|
|---|
| 35 | CompilerPath := '';
|
|---|
| 36 | ExecutorPath := 'c:\Program Files\Python\python.exe';
|
|---|
| 37 | {$ENDIF}
|
|---|
| 38 | {$IFDEF UNIX}
|
|---|
| 39 | CompilerPath := '';
|
|---|
| 40 | ExecutorPath := '/usr/bin/python3';
|
|---|
| 41 | {$ENDIF}
|
|---|
| 42 | end;
|
|---|
| 43 |
|
|---|
| 44 | function TTargetPython.GetMemoryCell: string;
|
|---|
| 45 | begin
|
|---|
| 46 | Result := 'memory[position';
|
|---|
| 47 | if FProgram[FProgramIndex].RelIndex > 0 then
|
|---|
| 48 | Result := Result + ' + ' + IntToStr(FProgram[FProgramIndex].RelIndex)
|
|---|
| 49 | else if FProgram[FProgramIndex].RelIndex < 0 then
|
|---|
| 50 | Result := Result + ' - ' + IntToStr(Abs(FProgram[FProgramIndex].RelIndex));
|
|---|
| 51 | Result := Result + ']';
|
|---|
| 52 | end;
|
|---|
| 53 |
|
|---|
| 54 | procedure TTargetPython.Compile;
|
|---|
| 55 | begin
|
|---|
| 56 | inherited;
|
|---|
| 57 | Indent := 0;
|
|---|
| 58 | FTargetCode := '';
|
|---|
| 59 |
|
|---|
| 60 | AddLine('# ' + ProgramName);
|
|---|
| 61 | AddLine('');
|
|---|
| 62 | AddLine('class _Getch:');
|
|---|
| 63 | AddLine(' """Gets a single character from standard input. Does not echo to the screen."""');
|
|---|
| 64 | AddLine(' def __init__(self):');
|
|---|
| 65 | AddLine(' try:');
|
|---|
| 66 | AddLine(' self.impl = _GetchWindows()');
|
|---|
| 67 | AddLine(' except ImportError:');
|
|---|
| 68 | AddLine(' self.impl = _GetchUnix()');
|
|---|
| 69 | AddLine('');
|
|---|
| 70 | AddLine(' def __call__(self): return self.impl()');
|
|---|
| 71 | AddLine('');
|
|---|
| 72 | AddLine('');
|
|---|
| 73 | AddLine('class _GetchUnix:');
|
|---|
| 74 | AddLine(' def __init__(self):');
|
|---|
| 75 | AddLine(' import tty, sys');
|
|---|
| 76 | AddLine('');
|
|---|
| 77 | AddLine(' def __call__(self):');
|
|---|
| 78 | AddLine(' import sys, tty, termios');
|
|---|
| 79 | AddLine(' fd = sys.stdin.fileno()');
|
|---|
| 80 | AddLine(' old_settings = termios.tcgetattr(fd)');
|
|---|
| 81 | AddLine(' try:');
|
|---|
| 82 | AddLine(' tty.setraw(sys.stdin.fileno())');
|
|---|
| 83 | AddLine(' ch = sys.stdin.read(1)');
|
|---|
| 84 | AddLine(' finally:');
|
|---|
| 85 | AddLine(' termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)');
|
|---|
| 86 | AddLine(' return ch');
|
|---|
| 87 | AddLine('');
|
|---|
| 88 | AddLine('');
|
|---|
| 89 | AddLine('class _GetchWindows:');
|
|---|
| 90 | AddLine(' def __init__(self):');
|
|---|
| 91 | AddLine(' import msvcrt');
|
|---|
| 92 | AddLine('');
|
|---|
| 93 | AddLine(' def __call__(self):');
|
|---|
| 94 | AddLine(' import msvcrt');
|
|---|
| 95 | AddLine(' return msvcrt.getch()');
|
|---|
| 96 | AddLine('');
|
|---|
| 97 | AddLine('getchar = _Getch()');
|
|---|
| 98 | AddLine('');
|
|---|
| 99 | AddLine('import sys');
|
|---|
| 100 | AddLine('memory = [0] * ' + IntToStr(MemorySize));
|
|---|
| 101 | AddLine('position = 0');
|
|---|
| 102 | FProgramIndex := 0;
|
|---|
| 103 | while FProgramIndex < FProgram.Count do begin
|
|---|
| 104 | case FProgram[FProgramIndex].Command of
|
|---|
| 105 | cmPointerInc: AddLine('position += ' + IntToStr(FProgram[FProgramIndex].Parameter));
|
|---|
| 106 | cmPointerDec: AddLine('position -= ' + IntToStr(FProgram[FProgramIndex].Parameter));
|
|---|
| 107 | cmInc: AddLine(GetMemoryCell + ' += ' + IntToStr(FProgram[FProgramIndex].Parameter));
|
|---|
| 108 | cmDec: AddLine(GetMemoryCell + ' -= ' + IntToStr(FProgram[FProgramIndex].Parameter));
|
|---|
| 109 | cmOutput: begin
|
|---|
| 110 | AddLine('sys.stdout.write(chr(' + GetMemoryCell + '))');
|
|---|
| 111 | AddLine('sys.stdout.flush()');
|
|---|
| 112 | end;
|
|---|
| 113 | cmInput: AddLine(GetMemoryCell + ' = ord(getchar())');
|
|---|
| 114 | cmSet: AddLine(GetMemoryCell + ' = ' + IntToStr(FProgram[FProgramIndex].Parameter));
|
|---|
| 115 | cmMultiply: AddLine(GetMemoryCell + ' = ' + GetMemoryCell + ' + memory[position] * ' + IntToStr(FProgram[FProgramIndex].Parameter) + ';');
|
|---|
| 116 | cmLoopStart: begin
|
|---|
| 117 | AddLine('while(' + GetMemoryCell + ' != 0):');
|
|---|
| 118 | Inc(Indent);
|
|---|
| 119 | end;
|
|---|
| 120 | cmLoopEnd: begin
|
|---|
| 121 | Dec(Indent);
|
|---|
| 122 | end;
|
|---|
| 123 | end;
|
|---|
| 124 | Inc(FProgramIndex);
|
|---|
| 125 | end;
|
|---|
| 126 |
|
|---|
| 127 | CompileToFile;
|
|---|
| 128 | end;
|
|---|
| 129 |
|
|---|
| 130 | procedure TTargetPython.Run;
|
|---|
| 131 | begin
|
|---|
| 132 | inherited;
|
|---|
| 133 | RunFromFile;
|
|---|
| 134 | end;
|
|---|
| 135 |
|
|---|
| 136 | end.
|
|---|
| 137 |
|
|---|
