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Python Source format, 5 years 9 months old, and 952 hits.

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Friday, July 28th, 2006 at 6:52:53am MDT 

  1. #
  2.  
  3. # interactive_console.py
  4.  
  5. #
  6.  
  7. # An implementation of a trivial interactive Python console for
  8.  
  9. # Series 60 Python environment. Based on 'code' module and
  10.  
  11. # 'series60_console'.
  12.  
  13. #     
  14.  
  15. # Copyright (c) 2005 Nokia Corporation
  16.  
  17. #
  18.  
  19. # Licensed under the Apache License, Version 2.0 (the "License");
  20.  
  21. # you may not use this file except in compliance with the License.
  22.  
  23. # You may obtain a copy of the License at
  24.  
  25. #
  26.  
  27. #     http://www.apache.org/licenses/LICENSE-2.0
  28.  
  29. #
  30.  
  31. # Unless required by applicable law or agreed to in writing, software
  32.  
  33. # distributed under the License is distributed on an "AS IS" BASIS,
  34.  
  35. # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  36.  
  37. # See the License for the specific language governing permissions and
  38.  
  39. # limitations under the License.
  40.  
  41. #
  42.  
  43.  
  44.  
  45. import appuifw
  46.  
  47. from key_codes import EKeyDevice3
  48.  
  49.  
  50.  
  51. class Py_console:
  52.  
  53.     def __init__(self, console):
  54.  
  55.         self.co = console
  56.  
  57.         self.co.control.bind(EKeyDevice3, self.handle_ok_press)
  58.  
  59.         self.history = ['','','','','']
  60.  
  61.         self.history_item = 4
  62.  
  63.  
  64.  
  65.     def handle_ok_press(self):
  66.  
  67.         self.co.write(u'\n')
  68.  
  69.         self.co.input_wait_lock.signal()
  70.  
  71.  
  72.  
  73.     def readfunc(self, prompt):
  74.  
  75.         self.co.write(unicode(prompt))
  76.  
  77.         user_input = self.co.readline()
  78.  
  79.         self.history.append(user_input)
  80.  
  81.         self.history.pop(0)
  82.  
  83.         self.history_item = 4
  84.  
  85.         return user_input
  86.        
  87.     def clear_screen(self):
  88.         self.co.clear()
  89.         self.co.input_wait_lock.signal()
  90.         self.readfunc(sys.ps1)
  91.  
  92.  
  93.  
  94.     def previous_input(self):
  95.  
  96.         if self.history_item == -1:
  97.  
  98.             return
  99.  
  100.         elif self.history_item == 4:
  101.  
  102.             self.line_beg = self.co.control.len()
  103.  
  104.         else:
  105.  
  106.             self.co.control.delete(self.line_beg,
  107.  
  108.                                    self.line_beg+\
  109.  
  110.                                    len(self.history[self.history_item]))
  111.  
  112.         self.co.control.set_pos(self.line_beg)
  113.  
  114.         self.co.write(self.history[self.history_item])
  115.  
  116.         self.history_item -= 1
  117.  
  118.  
  119.  
  120.     def interactive_loop(self, scope = locals()):
  121.  
  122.         import code
  123.  
  124.         appuifw.app.menu.append((u"Clear screen", self.co.clear_screen))
  125.         appuifw.app.menu.append((u"Previous command", self.previous_input))
  126.         self.co.clear()
  127.  
  128.         code.interact(None, self.readfunc, scope)
  129.  
  130.         self.co.control.bind(EKeyDevice3, None)
  131.  
  132.         self.history = []
  133.  
  134.         appuifw.app.menu = []
  135.  
  136.  
  137.  
  138. if __name__ == '__main__':
  139.  
  140.     try:
  141.  
  142.         console = my_console
  143.  
  144.     except NameError:
  145.  
  146.         import series60_console
  147.  
  148.         console = series60_console.Console()
  149.  
  150.     appuifw.app.body = console.control
  151.  
  152.     Py_console(console).interactive_loop()

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