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annotate libervia/frontends/tools/misc.py @ 4074:26b7ed2817da

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refactoring: rename `sat_frontends` to `libervia.frontends`
author Goffi <goffi@goffi.org>
date Fri, 02 Jun 2023 14:12:38 +0200
parents sat_frontends/tools/misc.py@524856bd7b19
children
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1 #!/usr/bin/env python3
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2
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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 def _update_input_history(self, text=None, step=None, callback=None, mode=""):
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23 """Update the lists of previously sent messages. Several lists can be
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24 handled as they are stored in a dictionary, the argument "mode" being
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25 used as the entry key. There's also a temporary list to allow you play
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26 with previous entries before sending a new message. Parameters values
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27 can be combined: text is None and step is None to initialize a main
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28 list and the temporary one, step is None to update a list and
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29 reinitialize the temporary one, step is not None to update
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30 the temporary list between two messages.
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31 @param text: text to be saved.
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32 @param step: step to move the temporary index.
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33 @param callback: method to display temporary entries.
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34 @param mode: the dictionary key for main lists.
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35 """
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36 if not hasattr(self, "input_histories"):
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37 self.input_histories = {}
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38 history = self.input_histories.setdefault(mode, [])
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39 if step is None and text is not None:
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40 # update the main list
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41 if text in history:
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42 history.remove(text)
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43 history.append(text)
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44 length = len(history)
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45 if step is None or length == 0:
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46 # prepare the temporary list and index
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47 self.input_history_tmp = history[:]
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48 self.input_history_tmp.append("")
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49 self.input_history_index = length
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50 if step is None:
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51 return
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52 # update the temporary list
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53 if text is not None:
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54 # save the current entry
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55 self.input_history_tmp[self.input_history_index] = text
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56 # move to another entry if possible
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57 index_tmp = self.input_history_index + step
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58 if index_tmp >= 0 and index_tmp < len(self.input_history_tmp):
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59 if callback is not None:
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60 callback(self.input_history_tmp[index_tmp])
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61 self.input_history_index = index_tmp
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64 class FlagsHandler(object):
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65 """Small class to handle easily option flags
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66
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67 the instance is initialized with an iterable
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68 then attribute return True if flag is set, False else.
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69 """
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70
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71 def __init__(self, flags):
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72 self.flags = set(flags or [])
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73 self._used_flags = set()
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74
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75 def __getattr__(self, flag):
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76 self._used_flags.add(flag)
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77 return flag in self.flags
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78
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79 def __getitem__(self, flag):
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80 return getattr(self, flag)
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81
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82 def __len__(self):
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83 return len(self.flags)
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84
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85 def __iter__(self):
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86 return self.flags.__iter__()
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87
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88 @property
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89 def all_used(self):
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90 """Return True if all flags have been used"""
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91 return self._used_flags.issuperset(self.flags)
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92
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93 @property
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94 def unused(self):
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95 """Return flags which has not been used yet"""
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96 return self.flags.difference(self._used_flags)