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# -*- coding: utf-8 -*-
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# Copyright 2014-2016 Mir Calculate. http://www.calculate-linux.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# from xml.etree import ElementTree as ET
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from lxml import etree as ET
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from .palette import (TextState, BaseColorMapping,
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ConsoleCodeMapping, LightColorMapping, ConsoleColor256,
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ConsoleCodesInfo, SpanPalette, XmlFormat)
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import re
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class BaseOutput():
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"""
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Базовый вывод текста.
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Вывод просто текста без изменения шрифта
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"""
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def __init__(self, state=None):
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pass
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def setBold(self):
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"""
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Выводимый текст будет жирным
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"""
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pass
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def resetBold(self):
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"""
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Выводимый текст будет нежирным
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"""
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pass
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def setUnderline(self):
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"""
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Выводимый текст будет подчеркнутым
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"""
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pass
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def resetUnderline(self):
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"""
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Выводимый текст не будет подчеркнутым
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"""
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pass
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def setHalfbright(self):
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"""
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Цвет выводимого текста использует полутона
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"""
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pass
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def resetHalfbright(self):
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"""
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Цвет выводимого текста не использует полутона
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"""
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pass
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def reset(self):
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"""
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Использовать шрифт по умолчанию
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"""
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pass
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def endText(self):
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"""
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Обработка текста завершена
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"""
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return ""
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def outputText(self, text):
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"""
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Вывести текст с установленными настройками
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"""
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return text
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def setForeground(self, color):
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"""
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Установить цвет шрифта
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"""
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pass
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def setBackground(self, color):
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"""
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Установить цвет фона
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"""
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pass
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def resetForeground(self):
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"""
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Использовать цвет шрифта по умолчанию
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"""
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pass
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def resetBackground(self):
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"""
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Использовать цвет фона по умолчанию
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"""
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pass
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def setInvert(self):
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"""
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Включить инверсию
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"""
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def resetInvert(self):
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"""
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Выключить инверсию
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"""
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def pushState(self):
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"""
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Сохранить состояние текста
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"""
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def popState(self):
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"""
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Восстановить состояние текста из стека
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"""
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def newLine(self):
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"""
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Вывести текст на новой строке
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"""
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return "\n"
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def tab(self):
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"""
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Вывести символ табуляции
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"""
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return "\t"
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def clone(self):
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"""
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Создать копию объекта
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"""
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return self.__class__()
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class SaveAttrOutput(BaseOutput):
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"""
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Базовый класс с сохранением атрибутов
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"""
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def __init__(self, state=None):
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super().__init__()
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self.prev_state = state.clone() if state else TextState()
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self.current_state = self.prev_state.clone()
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self.state_stack = []
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def clone(self):
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obj = self.__class__()
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obj.current_state = self.current_state.clone()
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#TODO: not sure if list here will result in double list
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obj.state_stack = list(self.state_stack)
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return obj
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def setBold(self):
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self.current_state.bold = True
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def resetBold(self):
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self.current_state.bold = False
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def setUnderline(self):
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self.current_state.underline = True
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def resetUnderline(self):
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self.current_state.underline = False
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def setHalfbright(self):
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self.current_state.halfbright = True
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def resetHalfbright(self):
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self.current_state.halfbright = False
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def reset(self):
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self.resetBold()
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self.resetHalfbright()
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self.resetUnderline()
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self.resetForeground()
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self.resetBackground()
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self.resetInvert()
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def setForeground(self, color):
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self.current_state.foreground = color
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def resetForeground(self):
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self.current_state.foreground = TextState.Colors.DEFAULT
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def setBackground(self, color):
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self.current_state.background = color
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def resetBackground(self):
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self.current_state.background = TextState.Colors.DEFAULT
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def resetInvert(self):
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self.current_state.invert = False
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def setInvert(self):
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self.current_state.invert = True
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def pushState(self):
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self.state_stack.append(self.current_state.clone())
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def popState(self):
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self.current_state = self.state_stack.pop()
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class ColorTerminalOutput(SaveAttrOutput):
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"""
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Форматирует текст для вывода в консоль
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"""
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mapColors = ConsoleCodeMapping(ConsoleCodesInfo.FOREGROUND,
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BaseColorMapping)
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mapLightColors = ConsoleCodeMapping(ConsoleCodesInfo.FOREGROUND -
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LightColorMapping.offset,
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LightColorMapping)
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mapBackgroundColors = ConsoleCodeMapping(ConsoleCodesInfo.BACKGROUND,
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BaseColorMapping)
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def __init__(self, state=None, escSymb=None):
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SaveAttrOutput.__init__(self, state=state)
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if escSymb is None:
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self.escSymb = '\033'
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else:
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self.escSymb = escSymb
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def setBold(self):
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self.resetHalfbright()
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super().setBold()
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def setHalfbright(self):
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self.resetBold()
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super().setHalfbright()
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def handleForeground(self, prevstate, curstate, attrs, tail_attrs):
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"""Обработать изменение тона"""
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cci = ConsoleCodesInfo
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color = curstate.foreground
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if color in self.mapColors:
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attrs.append(self.mapColors[color])
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elif color in self.mapLightColors:
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if prevstate.bold == curstate.bold and not curstate.bold:
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tail_attrs.append(cci.NORMAL)
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attrs.append(cci.BOLD)
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attrs.append(self.mapLightColors[color])
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else:
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attrs.append(cci.FOREGROUND_DEFAULT)
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self.resetForeground()
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def handleBackground(self, prevstate, curstate, attrs, tail_attrs):
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"""Обработать изменение фона"""
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color = curstate.background
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if color in self.mapBackgroundColors:
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attrs.append(self.mapBackgroundColors[color])
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else:
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attrs.append(ConsoleCodesInfo.BACKGROUND_DEFAULT)
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def handleIntensity(self, prevstate, curstate, attrs, tail_attrs):
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"""Обработать интенсивность"""
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if curstate.bold and curstate.bold != prevstate.bold:
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attrs.append(ConsoleCodesInfo.BOLD)
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elif (curstate.halfbright and
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prevstate.halfbright != curstate.halfbright):
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attrs.append(ConsoleCodesInfo.HALFBRIGHT)
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else:
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attrs.append(ConsoleCodesInfo.NORMAL)
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def handleUnderline(self, prevstate, curstate, attrs, tail_attrs):
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"""Обработать подчеркивание"""
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if curstate.underline:
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attrs.append(ConsoleCodesInfo.UNDERLINE)
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else:
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attrs.append(ConsoleCodesInfo.NOUNDERLINE)
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def handleInvert(self, prevstate, curstate, attrs, tail_attrs):
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"""Обработать инверсию"""
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if curstate.invert:
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attrs.append(ConsoleCodesInfo.INVERT)
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else:
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attrs.append(ConsoleCodesInfo.NOINVERT)
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def handleColor(self, prevstate, curstate, attrs, tail_attrs):
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"""Обработать изменение цветов (фон и/или тон)"""
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# if prevstate.foreground != curstate.foreground:
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# self.handleForeground(prevstate, curstate, attrs, tail_attrs)
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if prevstate.foreground != curstate.foreground or \
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curstate.foreground is not None and prevstate.foreground == curstate.foreground:
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self.handleForeground(prevstate, curstate, attrs, tail_attrs)
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# if prevstate.background != curstate.background:
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# self.handleBackground(prevstate, curstate, attrs, tail_attrs)
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if prevstate.background != curstate.background or \
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curstate.background is not None and prevstate.background == curstate.background:
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self.handleBackground(prevstate, curstate, attrs, tail_attrs)
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def _createAttrs(self, prevstate, curstate):
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"""
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Создать ESC последовательность для установки параметров текста
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"""
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attrs, tail_attrs = [], []
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# получить интенсивность (полутон и жирность относятся к интенсивности)
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intensity = lambda x: x & (TextState.Attributes.HALFBRIGHT |
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TextState.Attributes.BOLD)
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if (prevstate.attr != curstate.attr and
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curstate.attr == TextState.Attributes.NONE and
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curstate.foreground is TextState.Colors.DEFAULT and
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curstate.background is TextState.Colors.DEFAULT):
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attrs.append(ConsoleCodesInfo.RESET)
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else:
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if intensity(prevstate.attr) != intensity(curstate.attr):
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self.handleIntensity(prevstate, curstate, attrs, tail_attrs)
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if prevstate.underline != curstate.underline:
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self.handleUnderline(prevstate, curstate, attrs, tail_attrs)
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if prevstate.invert != curstate.invert:
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self.handleInvert(prevstate, curstate, attrs, tail_attrs)
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# if (prevstate.foreground != curstate.foreground or
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# prevstate.background != curstate.background):
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self.handleColor(prevstate, curstate, attrs, tail_attrs)
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return attrs, tail_attrs
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def _createEscCode(self, attrs):
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"""
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Создать ESC строку
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"""
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attrs = [str(x) for x in ['%s[' % self.escSymb] + attrs + ['m']]
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return "%s%s%s" % (attrs[0], ";".join(attrs[1:-1]), attrs[-1])
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def outputText(self, s):
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"""
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Задание параметров текста и вывод его
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"""
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if self.prev_state != self.current_state:
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attr, tail_attrs = \
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self._createAttrs(self.prev_state, self.current_state)
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attr = self._createEscCode(attr)
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if tail_attrs:
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postattr = self._createEscCode(tail_attrs)
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else:
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postattr = ""
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self.prev_state = self.current_state.clone()
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else:
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attr = ""
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postattr = ""
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return attr + s + postattr
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def endText(self):
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self.reset()
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return self.outputText("")
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def newLine(self):
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return "\n"
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def tab(self):
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return "\t"
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class ColorTerminal256Output(ColorTerminalOutput):
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"""
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Вывод на 256 цветный терминал
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"""
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mapLightColors = LightColorMapping.mapTS_Console
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def handleForeground(self, prevstate, curstate, attrs, tail_attrs):
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color = curstate.foreground
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color256 = ConsoleColor256.rgbToConsole(color)
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if not color256 and color in self.mapLightColors:
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color256 = self.mapLightColors[color]
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if color256:
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attrs.extend([ConsoleCodesInfo.FOREGROUND256,
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ConsoleCodesInfo.COLOR256,
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color256])
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else:
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super().handleForeground(prevstate, curstate, attrs, tail_attrs)
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def handleBackground(self, prevstate, curstate, attrs, tail_attrs):
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color = curstate.background
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color256 = ConsoleColor256.rgbToConsole(color)
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if not color256 and color in self.mapLightColors:
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color256 = self.mapLightColors[color]
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if color256:
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attrs.extend([ConsoleCodesInfo.BACKGROUND256,
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ConsoleCodesInfo.COLOR256,
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color256])
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else:
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super().handleBackground(prevstate, curstate, attrs, tail_attrs)
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class ColorTerminal16Output(ColorTerminalOutput):
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"""
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Вывод на 16 цветный терминал с преобразованием RGB к ближайшему базовому
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Bugs:
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После преобразования текст и фон могут одинакового цвета
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"""
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def __init__(self, state=None, palette=None, escSymb=None):
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ColorTerminalOutput.__init__(self, state=state, escSymb=escSymb)
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self.palette = palette
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def _handleNearestColors(self, color):
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"""
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Обработка преобразования к ближайшему цвету
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"""
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standardColors = TextState.normalColors + TextState.lightColors
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if self.palette and color not in standardColors:
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return self.palette.getBaseColorByRGB(color)
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return color
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def handleForeground(self, prevstate, curstate, attrs, tail_attrs):
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"""
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Добавить преобразование RGB к ближайшему базовому
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"""
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_curstate = curstate.clone()
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_curstate.foreground = \
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self._handleNearestColors(curstate.foreground)
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super().handleForeground(
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prevstate, _curstate,
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attrs, tail_attrs)
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def handleBackground(self, prevstate, curstate, attrs, tail_attrs):
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"""
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Добавить преобразование RGB к ближайшему базовому
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"""
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mapHighNormal = dict(zip(TextState.lightColors,
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TextState.normalColors))
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_curstate = curstate.clone()
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_curstate.background = \
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self._handleNearestColors(curstate.background)
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# преобразовать яркий цвет к обычному
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_curstate.background = \
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mapHighNormal.get(_curstate.background, _curstate.background)
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super().handleBackground(
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prevstate, _curstate,
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attrs, tail_attrs)
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class SpanCssOutput(SaveAttrOutput):
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"""
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Форматирует текст для вывода в консоль
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"""
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def __init__(self, state=None, palette=SpanPalette()):
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SaveAttrOutput.__init__(self, state=state)
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self.palette = palette
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def getStringColor(self, color, bold=False, halfbright=False,
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background=False):
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"""
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Получить название цвета по номеру и состоянию текста
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"""
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if halfbright:
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bright = SpanPalette.LOW_BRIGHT
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elif bold:
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bright = SpanPalette.HIGH_BRIGHT
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else:
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bright = SpanPalette.NORMAL_BRIGHT
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if background:
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return self.palette.getBackgroundColor(color)
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else:
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return self.palette.getTextColor(color, bright)
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def getTags(self, prevstate, curstate):
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"""
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Создать tag span для указания параметров текста
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"""
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style = []
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colorAttr = ["color", "background"]
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if curstate.invert:
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colorAttr = colorAttr[1], colorAttr[0]
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if (prevstate.foreground != curstate.foreground or
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prevstate.bold != curstate.bold or
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curstate.invert or
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prevstate.halfbright != curstate.halfbright):
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sColor = self.getStringColor(curstate.foreground,
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curstate.bold,
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curstate.halfbright,
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background=False)
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style.append("%s:%s;" % (colorAttr[0], sColor))
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if prevstate.background != curstate.background or curstate.invert:
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sColor = self.getStringColor(curstate.background,
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background=True)
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style.append("%s:%s;" % (colorAttr[1], sColor))
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if prevstate.underline != curstate.underline:
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if curstate.underline:
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style.append("text-decoration:underline;")
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else:
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style.append("text-decoration:none;")
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if prevstate.bold != curstate.bold:
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if curstate.bold:
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style.append("font-weight:bold;")
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else:
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style.append("font-weight:normal;")
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return '<span style="%s">' % "".join(style), '</span>'
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def outputText(self, s):
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if self.prev_state != self.current_state:
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lattr, rattr = self.getTags(self.prev_state, self.current_state)
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else:
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lattr = rattr = ""
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return lattr + XmlFormat.escaper(s) + rattr
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def endText(self):
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self.reset()
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return ""
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def newLine(self):
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return "<br/>"
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def tab(self):
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return "	"
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class XmlOutput(SaveAttrOutput):
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"""
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Форматирует текст c описанием формата в XML для внутренней передачи
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Bugs: игнорирует первоначальное состояние (state)
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не экономное использование тэгов (например при выводе нескольких строк
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"""
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escaper = XmlFormat.escaper
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def __init__(self, state=None):
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super().__init__(state=state)
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self.clear_state = TextState()
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def getXML(self, curstate, text):
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"""
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Создать управляющие тэги
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:type curstate: TextState
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:type text: str
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"""
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Tags, FontAttributes = XmlFormat.Tags, XmlFormat.FontAttributes
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root = ET.Element("root")
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tail = root
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if (curstate.foreground != TextState.Colors.DEFAULT or
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curstate.background != TextState.Colors.DEFAULT):
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tail = ET.SubElement(tail, Tags.FONT)
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sColor = str(curstate.foreground or "")
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if sColor:
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tail.attrib[FontAttributes.FOREGROUND] = sColor
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sColor = str(curstate.background or "")
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if sColor:
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tail.attrib[FontAttributes.BACKGROUND] = sColor
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if curstate.halfbright:
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tail = ET.SubElement(tail, Tags.HALFBRIGHT)
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if curstate.invert:
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tail = ET.SubElement(tail, Tags.INVERT)
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if curstate.underline:
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tail = ET.SubElement(tail, Tags.UNDERLINE)
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if curstate.bold:
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tail = ET.SubElement(tail, Tags.BOLD)
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text = re.sub('[^\u0020-\uD7FF\u0009\u000A\u000D\uE000-\uFFFD\U00010000-\U0010FFFF]+', '', text)
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tail.text = text
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return root
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def xmlToString(self, xml):
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"""
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Получить строку xml не преобразовывая &, <, >
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"""
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def generator(root):
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if root.attrib:
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yield "<%s %s>" % (root.tag,
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" ".join(['%s="%s"' % (k, v) for k, v in
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root.attrib.items()]))
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else:
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#py3 compat :(
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if root.tag != "root":
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yield "<%s>" % root.tag
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if len(root):
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for element in root:
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for text in generator(element):
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yield text
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if root.text:
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yield self.escaper(root.text)
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if root.tag != "root":
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yield "</%s>" % root.tag
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return "".join((x for x in generator(xml) if x))
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def outputText(self, s):
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if self.clear_state != self.current_state:
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return self.xmlToString(self.getXML(self.current_state, s))
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else:
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return self.escaper(s)
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def endText(self):
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self.reset()
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return ""
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def newLine(self):
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return "<br/>"
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def tab(self):
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return "<tab/>"
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class BasePositionOutput():
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"""
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Объект составляющий ESC последовательности для управлением местом вывода
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"""
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def moveCursorUp(self, count=1):
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"""
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Переместить курсор вверх
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"""
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return ""
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def moveCursorDown(self, count=1):
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"""
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Переместить курсор вниз
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"""
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return ""
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def moveCursorRight(self, count=1):
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"""
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Переместить курсор вправо
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"""
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return ""
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def moveCursorLeft(self, count=1):
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"""
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Переместить курсор влево
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"""
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return ""
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def clearLine(self, whole_line=False):
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"""
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Очистить строку от курсора до конца или всю строку
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"""
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return ""
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def savePosition(self):
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"""
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Сохранить положение курсора
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"""
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return ""
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def restorePosition(self):
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"""
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Восстановить положение курсора
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"""
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return ""
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class TerminalPositionOutput(BasePositionOutput):
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"""
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Управление позицией вывода текста в терминале
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"""
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class Codes():
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UP = 'A'
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DOWN = 'B'
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RIGHT = 'C'
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LEFT = 'D'
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CLEAR_LINE = 'K'
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CLEAR_FROM_CURSOR = '1'
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CLEAR_WHOLE_LINE = '2'
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SAVE_POSITION = 's'
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RESTORE_POSITION = 'u'
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def _createEscCode(self, attrs):
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"""
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Создать ESC строку
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"""
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return '\033[%s' % attrs
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def _moveCursor(self, direct, count):
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if int(count) > 1:
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count = str(count)
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else:
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count = ""
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return self._createEscCode("%s%s" % (count, direct))
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def moveCursorDown(self, count=1):
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return self._moveCursor(self.Codes.DOWN, count)
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def moveCursorUp(self, count=1):
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return self._moveCursor(self.Codes.UP, count)
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def moveCursorRight(self, count=1):
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return self._moveCursor(self.Codes.RIGHT, count)
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def moveCursorLeft(self, count=1):
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return self._moveCursor(self.Codes.LEFT, count)
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def clearLine(self, whole_line=False):
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if whole_line:
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mode_code = self.Codes.CLEAR_WHOLE_LINE
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else:
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mode_code = self.Codes.CLEAR_FROM_CURSOR
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return self._createEscCode("%s%s" % (mode_code, self.Codes.CLEAR_LINE))
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def savePosition(self):
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return self._createEscCode(self.Codes.SAVE_POSITION)
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def restorePosition(self):
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return self._createEscCode(self.Codes.RESTORE_POSITION)
|