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annotate console.py @ 183:7b6aba7839ea

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getGameEnvironment of GameState now returns a locals dictionary that is empty at the beginning of the game and will be saved in save games. The vals and funcs are now both in the globals dictionary. This WILL break old saves.
author Beliar <KarstenBock@gmx.net>
date Thu, 15 Mar 2012 16:24:05 +0100
parents c706963ed0c3
children
rev   line source
0
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1 # This program is free software: you can redistribute it and/or modify
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2 # it under the terms of the GNU General Public License as published by
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3 # the Free Software Foundation, either version 3 of the License, or
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4 # (at your option) any later version.
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5
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6 # This program is distributed in the hope that it will be useful,
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7 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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8 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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9 # GNU General Public License for more details.
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10
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11 # You should have received a copy of the GNU General Public License
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12 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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13
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14 import re
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15 import os
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16 import sys
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17 from StringIO import StringIO
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18 import code
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19
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20 class Console:
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21 def __init__(self, app_listener):
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22 """
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23 @type appListener: ApplicationListener
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24 @param appListener: ApplicationListener object providing a link with
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25 the Controller, the view and the GameModel"""
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26 exit_help = "Terminate application"
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27 grid_help = "Toggle grid display"
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28 run_help = "Toggle player run/walk"
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29 help_help = "Show this help string"
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30 load_help = "Usage: load directory file"
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31 python_help = "Run some python code"
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32 quit_help = "Terminate application"
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33 save_help = "Usage: save directory file"
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34 pause_help = "Pause/Unpause the game"
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35
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36 self.commands = [
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37 {"cmd":"exit" ,"callback":self.handleQuit ,"help": exit_help},
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38 {"cmd":"grid" ,"callback":self.handleGrid ,"help": grid_help},
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39 {"cmd":"help" ,"callback":self.handleHelp ,"help": help_help},
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40 {"cmd":"load" ,"callback":self.handleLoad ,"help": load_help},
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41 {"cmd":"pause" ,"callback":self.handlePause ,"help": pause_help},
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42 {"cmd":"python","callback":self.handlePython,"help": python_help},
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43 {"cmd":"run" ,"callback":self.handleRun ,"help": run_help},
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44 {"cmd":"save" ,"callback":self.handleSave ,"help": save_help},
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45 {"cmd":"quit" ,"callback":self.handleQuit ,"help": quit_help},
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46 ]
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47 self.app_listener = app_listener
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48 self.view = self.app_listener.view
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49 self.model = self.app_listener.model
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50 self.game_state = self.app_listener.view.model.game_state
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51
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52 def handleQuit(self, command):
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53 """Implements the quit console command
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54 @type command: string
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55 @param command: The command to run
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56 @return: The resultstring"""
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57 self.app_listener.quitGame()
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58 return "Terminating ..."
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59
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60 def handlePause(self, command):
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61 """Implements the pause console command
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62 @type command: string
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63 @param command: The command to run
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64 @return: The resultstring"""
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65 self.model.togglePause()
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66 return "Game (un)paused"
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67
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68 def handleGrid(self, command):
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69 """Implements the grid console command
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70 @type command: string
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71 @param command: The command to run
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72 @return: The resultstring"""
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73 self.app_listener.view.active_map.toggleRenderer('GridRenderer')
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74 return "Grid toggled"
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75
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76 def handleRun(self, command):
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77 """Toggles run/walk mode of the PC player
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78 @type command: string
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79 @param command: The command to run.
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80 @return: The response"""
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81 if self.app_listener.model.pc_run == 1:
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82 self.app_listener.model.pc_run = 0
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83 return "PC is now walking"
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84 else:
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85 self.app_listener.model.pc_run = 1
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86 return "PC is now running"
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87
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88 def handleHelp(self, command):
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89 """Implements the help console command
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90 @type command: string
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91 @param command: The command to run
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92 @return: The resultstring"""
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93 res = ""
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94 for cmd in self.commands:
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95 res += "%10s: %s\n" % (cmd["cmd"], cmd["help"])
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96 return res
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97
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98 def handlePython(self,command):
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99 globals, locals = self.game_state.getGameEnvironment()
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100 globals.update({
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101 "__name__":"__paprg_console__",
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102 "__doc__": None,
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103 })
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104
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105 console = code.InteractiveConsole(globals, locals)
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106
0
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107 user_code = command[7:len(command)]
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108
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109 codeOut = StringIO()
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110
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111 #make stdout and stderr write to our file, not the terminal
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112 sys.stdout = codeOut
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113 sys.stderr = codeOut
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114
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115 #Process the code
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116 console.push(user_code)
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117 output = codeOut.getvalue()
0
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118
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119 #restore stdout and stderr
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120 sys.stdout = sys.__stdout__
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121 sys.stderr = sys.__stderr__
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122 temp_output = output
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123 output = ""
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124 counter = 0
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125
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126 #Make the output fit in the console screen
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127 for char in temp_output:
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128 counter += 1
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129 if char == "\n":
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130 counter = 0
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131 elif counter == 110:
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132 output += "\n"
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133 counter = 0
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134 output += char
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135
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136 return output
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137
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138 def handleLoad(self, command):
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139 """Implements the load console command
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140 @type command: string
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141 @param command: The command to run
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142 @return: The resultstring"""
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143 result = None
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144 load_regex = re.compile('^load')
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145 l_matches = load_regex.match(command.lower())
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146 if (l_matches is not None):
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147 end_load = l_matches.end()
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148 try:
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149 l_args = command.lower()[end_load + 1:].strip()
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150 l_path, l_filename = l_args.split(' ')
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151 self.app_listener.model.load_save = True
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152 self.app_listener.model.savegame = os.path.join(l_path, l_filename)
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153 result = "Load triggered"
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154
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155 except Exception, l_error:
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156 self.app_listener.engine.getGuiManager().getConsole().println('Error: ' + str(l_error))
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157 result="Failed to load file"
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158
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159 return result
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160
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161 def handleSave(self, command):
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162 """Implements the save console command
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163 @type command: string
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164 @param command: The command to run
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165 @return: The resultstring"""
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166 save_regex = re.compile('^save')
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167 s_matches = save_regex.match(command.lower())
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168 if (s_matches != None):
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169 end_save = s_matches.end()
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170 try:
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171 s_args = command.lower()[end_save+1:].strip()
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172 s_path, s_filename = s_args.split(' ')
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173 self.app_listener.model.save(s_path, s_filename)
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174 result = "Saved to file: " + s_path + s_filename
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175
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176 except Exception, s_error:
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177 self.app_listener.engine.getGuiManager().getConsole(). \
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178 println('Error: ' + str(s_error))
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179 result = "Failed to save file"
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180 return result
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181
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182 def handleConsoleCommand(self, command):
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183 """Implements the console logic
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184 @type command: string
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185 @param command: The command to run
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186 @return: The response string """
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187 result = None
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188 for cmd in self.commands:
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189 regex = re.compile('^' + cmd["cmd"])
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190 if regex.match(command.lower()):
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191 result=cmd["callback"](command)
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192
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193 if result is None:
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194 result = self.handlePython("python " + command)
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195 return result