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annotate sat_frontends/tools/misc.py @ 2603:5d4ac5415b40

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author Goffi <goffi@goffi.org>
date Fri, 01 Jun 2018 12:21:23 +0200
parents 26edcf3a30eb
children b4ecbcc2fd08
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1934
2daf7b4c6756 use of /usr/bin/env instead of /usr/bin/python in shebang
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT helpers methods for plugins
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5 # Copyright (C) 2013-2016 Adrien Cossa (souliane@mailoo.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20
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21 class InputHistory(object):
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22
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23 def _updateInputHistory(self, text=None, step=None, callback=None, mode=""):
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24 """Update the lists of previously sent messages. Several lists can be
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25 handled as they are stored in a dictionary, the argument "mode" being
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26 used as the entry key. There's also a temporary list to allow you play
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27 with previous entries before sending a new message. Parameters values
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28 can be combined: text is None and step is None to initialize a main
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29 list and the temporary one, step is None to update a list and
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30 reinitialize the temporary one, step is not None to update
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31 the temporary list between two messages.
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32 @param text: text to be saved.
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33 @param step: step to move the temporary index.
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34 @param callback: method to display temporary entries.
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35 @param mode: the dictionary key for main lists.
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36 """
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37 if not hasattr(self, "input_histories"):
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38 self.input_histories = {}
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39 history = self.input_histories.setdefault(mode, [])
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40 if step is None and text is not None:
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41 # update the main list
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42 if text in history:
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43 history.remove(text)
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44 history.append(text)
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45 length = len(history)
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46 if step is None or length == 0:
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47 # prepare the temporary list and index
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48 self.input_history_tmp = history[:]
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49 self.input_history_tmp.append("")
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50 self.input_history_index = length
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51 if step is None:
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52 return
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53 # update the temporary list
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54 if text is not None:
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55 # save the current entry
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56 self.input_history_tmp[self.input_history_index] = text
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57 # move to another entry if possible
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58 index_tmp = self.input_history_index + step
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59 if index_tmp >= 0 and index_tmp < len(self.input_history_tmp):
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60 if callback is not None:
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61 callback(self.input_history_tmp[index_tmp])
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62 self.input_history_index = index_tmp
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64
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65 class FlagsHandler(object):
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66 """Small class to handle easily option flags
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67
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68 the instance is initialized with an iterable
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69 then attribute return True if flag is set, False else.
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70 WARNING: If a flag is checked, it is removed (i.e. unset)
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71 this is done to use bool(flags_handler) to check if all flags
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72 have been used
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73 """
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74
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75 def __init__(self, flags):
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76 self.flags = set(flags or [])
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77
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78 def __getattr__(self, flag):
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79 try:
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80 self.flags.remove(flag)
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81 except KeyError:
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82 return False
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83 else:
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84 return True
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85
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86 def __len__(self):
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87 return len(self.flags)
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88
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89 def __iter__(self):
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90 return self.flags.__iter__()