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#!/usr/bin/env python |
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""" |
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Not much commentary in this example. It's more of a demo. |
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""" |
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import sys |
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import code |
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import io |
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import time |
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import traceback |
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import tdl |
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sys.ps1 = '>>> ' |
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sys.ps2 = '... ' |
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WIDTH, HEIGHT = 80, 50 |
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console = tdl.init(WIDTH, HEIGHT, 'Python Interpeter in TDL') |
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console.setMode('scroll') |
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class TDLPrint(io.TextIOBase): |
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def __init__(self, fgcolor=(255, 255, 255), bgcolor=(0, 0, 0)): |
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self.colors = fgcolor, bgcolor |
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def write(self, string): |
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olderr.write(string) |
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console.setColors(*self.colors) |
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console.write(string) |
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#sys.stdout = TDLPrint() |
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sys.stdout = console |
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sys.stdout.move(0, HEIGHT-1) |
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olderr = newerr = sys.stderr |
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newerr = TDLPrint((255, 255, 255), (127, 0, 0)) |
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def exit(): |
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raise SystemExit |
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interpeter = code.InteractiveConsole({'tdl':tdl, |
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'console':console, |
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'exit':exit}) |
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def main(): |
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print() |
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print('Python %s' % sys.version) |
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print('Press ESC to quit') |
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buffer = '' |
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commands = [''] |
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banner = sys.ps1 |
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cursor = 0 |
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while 1: |
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console.draw_rect(0, HEIGHT-1, None, 1, ' ', (255, 255, 255), (0, 0, 0)) |
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console.draw_str(0, HEIGHT-1, banner + buffer) |
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try: |
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console.draw_char(len(banner) + cursor, HEIGHT-1, None, None, (0, 255, 255)) |
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except tdl.TDLError: |
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pass |
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tdl.flush() |
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for event in tdl.event.get(): |
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if event.type == 'QUIT': |
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raise SystemExit() |
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if event.type == 'KEYDOWN': |
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if event.key == 'ENTER' or event.key == 'KPENTER': |
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sys.stderr = newerr |
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try: |
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console.draw_rect(0, HEIGHT-1, None, 1, None, (255, 255, 255), (0, 0, 0)) |
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console.scroll(0, -1) |
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if interpeter.push(buffer): |
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banner = sys.ps2 |
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else: |
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banner = sys.ps1 |
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except SystemExit: |
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raise |
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except: |
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sys.excepthook(*sys.exc_info()) |
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banner = sys.ps1 |
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finally: |
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sys.stderr = olderr |
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sys.stdout = olderr |
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sys.stdout = console |
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if buffer not in commands: |
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commands.append(buffer) |
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buffer = '' |
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elif event.key == 'BACKSPACE': |
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if cursor == 0: |
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continue |
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if buffer[:cursor][-4:] == ' ': |
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buffer = buffer[:cursor-4] + buffer[cursor:] |
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cursor -= 4 |
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elif buffer: |
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buffer = buffer[:cursor-1] + buffer[cursor:] |
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cursor -= 1 |
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elif event.key == 'DELETE': |
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buffer = buffer[:cursor] + buffer[cursor+1:] |
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elif event.key == 'LEFT': |
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cursor -= 1 |
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elif event.key == 'RIGHT': |
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cursor += 1 |
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elif event.key == 'HOME': |
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cursor = 0 |
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elif event.key == 'END': |
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cursor = len(buffer) |
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elif event.key == 'UP': |
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commands.insert(0, buffer) |
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buffer = commands.pop() |
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cursor = len(buffer) |
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elif event.key == 'DOWN': |
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commands.append(buffer) |
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buffer = commands.pop(0) |
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cursor = len(buffer) |
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elif event.key == 'TAB': |
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buffer = buffer[:cursor] + ' ' + buffer[cursor:] |
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cursor += 4 |
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elif event.key == 'ESCAPE': |
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raise SystemExit() |
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elif event.char: |
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buffer = buffer[:cursor] + event.char + buffer[cursor:] |
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cursor += 1 |
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cursor = max(0, min(cursor, len(buffer))) |
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time.sleep(.01) |
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if __name__ == '__main__': |
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main() |
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HexDecimal /
python-tdl
