eric6/Preferences/ConfigurationPages/EditorHighlightersPage.py

Wed, 30 Dec 2020 11:00:44 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Wed, 30 Dec 2020 11:00:44 +0100
branch
maintenance
changeset 7924
8a96736d465e
parent 7780
41420f82c0ac
child 8143
2c730d5fd177
permissions
-rw-r--r--

Updated copyright for 2021.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2006 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing the Editor Highlighter Associations configuration page.
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8 """
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9
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10 import os
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11
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12 from pygments.lexers import get_all_lexers
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13
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14 from PyQt5.QtCore import Qt, pyqtSlot
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15 from PyQt5.QtWidgets import QHeaderView, QTreeWidgetItem
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16
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17 from .ConfigurationPageBase import ConfigurationPageBase
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18 from .Ui_EditorHighlightersPage import Ui_EditorHighlightersPage
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19
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20 import Preferences
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21
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22
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23 class EditorHighlightersPage(ConfigurationPageBase, Ui_EditorHighlightersPage):
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24 """
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25 Class implementing the Editor Highlighter Associations configuration page.
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26 """
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27 def __init__(self, lexers):
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28 """
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29 Constructor
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30
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31 @param lexers reference to the lexers dictionary
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32 """
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33 super(EditorHighlightersPage, self).__init__()
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34 self.setupUi(self)
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35 self.setObjectName("EditorHighlightersPage")
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36
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37 self.editorLexerList.headerItem().setText(
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38 self.editorLexerList.columnCount(), "")
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39 header = self.editorLexerList.header()
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40 header.setSectionResizeMode(QHeaderView.ResizeToContents)
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41 header.setSortIndicator(0, Qt.AscendingOrder)
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42
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43 try:
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44 self.extsep = os.extsep
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45 except AttributeError:
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46 self.extsep = "."
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47
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48 import QScintilla.Lexers
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49 self.extras = ["-----------", self.tr("Alternative")]
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50 languages = [''] + sorted(lexers.keys()) + self.extras
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51 for lang in languages:
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52 self.editorLexerCombo.addItem(
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53 QScintilla.Lexers.getLanguageIcon(lang, False),
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54 lang)
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55
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56 pygmentsLexers = [''] + sorted(lex[0] for lex in get_all_lexers())
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57 self.pygmentsLexerCombo.addItems(pygmentsLexers)
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58
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59 # set initial values
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60 lexerAssocs = Preferences.getEditorLexerAssocs()
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61 for ext in lexerAssocs:
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62 QTreeWidgetItem(self.editorLexerList, [ext, lexerAssocs[ext]])
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63 self.editorLexerList.sortByColumn(0, Qt.AscendingOrder)
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64
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65 def save(self):
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66 """
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67 Public slot to save the Editor Highlighter Associations configuration.
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68 """
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69 lexerAssocs = {}
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70 for index in range(
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71 self.editorLexerList.topLevelItemCount()):
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72 itm = self.editorLexerList.topLevelItem(index)
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73 lexerAssocs[itm.text(0)] = itm.text(1)
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74 Preferences.setEditorLexerAssocs(lexerAssocs)
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75
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76 @pyqtSlot()
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77 def on_addLexerButton_clicked(self):
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78 """
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79 Private slot to add the lexer association displayed to the list.
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80 """
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81 ext = self.editorFileExtEdit.text()
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82 if ext.startswith(self.extsep):
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83 ext.replace(self.extsep, "")
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84 lexer = self.editorLexerCombo.currentText()
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85 if lexer in self.extras:
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86 pygmentsLexer = self.pygmentsLexerCombo.currentText()
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87 if not pygmentsLexer:
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88 lexer = pygmentsLexer
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89 else:
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90 lexer = "Pygments|{0}".format(pygmentsLexer)
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91 if ext and lexer:
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92 itmList = self.editorLexerList.findItems(
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93 ext, Qt.MatchFlags(Qt.MatchExactly), 0)
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94 if itmList:
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95 index = self.editorLexerList.indexOfTopLevelItem(itmList[0])
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96 itm = self.editorLexerList.takeTopLevelItem(index)
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97 # __IGNORE_WARNING__
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98 del itm
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99 QTreeWidgetItem(self.editorLexerList, [ext, lexer])
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100 self.editorFileExtEdit.clear()
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101 self.editorLexerCombo.setCurrentIndex(0)
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102 self.pygmentsLexerCombo.setCurrentIndex(0)
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103 self.editorLexerList.sortItems(
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104 self.editorLexerList.sortColumn(),
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105 self.editorLexerList.header().sortIndicatorOrder())
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106
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107 @pyqtSlot()
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108 def on_deleteLexerButton_clicked(self):
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109 """
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110 Private slot to delete the currently selected lexer association of the
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111 list.
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112 """
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113 itmList = self.editorLexerList.selectedItems()
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114 if itmList:
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115 index = self.editorLexerList.indexOfTopLevelItem(itmList[0])
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116 itm = self.editorLexerList.takeTopLevelItem(index)
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117 # __IGNORE_WARNING__
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118 del itm
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119
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120 self.editorLexerList.clearSelection()
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121 self.editorFileExtEdit.clear()
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122 self.editorLexerCombo.setCurrentIndex(0)
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123
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124 def on_editorLexerList_itemClicked(self, itm, column):
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125 """
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126 Private slot to handle the clicked signal of the lexer association
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127 list.
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128
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129 @param itm reference to the selecte item (QTreeWidgetItem)
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130 @param column column the item was clicked or activated (integer)
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131 (ignored)
0
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132 """
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133 if itm is None:
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134 self.editorFileExtEdit.clear()
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135 self.editorLexerCombo.setCurrentIndex(0)
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136 self.pygmentsLexerCombo.setCurrentIndex(0)
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137 else:
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138 self.editorFileExtEdit.setText(itm.text(0))
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139 lexer = itm.text(1)
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140 if lexer.startswith("Pygments|"):
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141 pygmentsLexer = lexer.split("|")[1]
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142 pygmentsIndex = self.pygmentsLexerCombo.findText(pygmentsLexer)
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143 lexer = self.tr("Alternative")
0
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144 else:
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145 pygmentsIndex = 0
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146 index = self.editorLexerCombo.findText(lexer)
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147 self.editorLexerCombo.setCurrentIndex(index)
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148 self.pygmentsLexerCombo.setCurrentIndex(pygmentsIndex)
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149
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150 def on_editorLexerList_itemActivated(self, itm, column):
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151 """
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152 Private slot to handle the activated signal of the lexer association
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153 list.
0
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154
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155 @param itm reference to the selecte item (QTreeWidgetItem)
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156 @param column column the item was clicked or activated (integer)
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157 (ignored)
0
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158 """
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159 self.on_editorLexerList_itemClicked(itm, column)
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160
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161 @pyqtSlot(str)
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162 def on_editorLexerCombo_currentIndexChanged(self, text):
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163 """
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164 Private slot to handle the selection of a lexer.
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165
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166 @param text text of the lexer combo (string)
0
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167 """
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168 if text in self.extras:
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169 self.pygmentsLexerCombo.setEnabled(True)
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170 self.pygmentsLabel.setEnabled(True)
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171 else:
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172 self.pygmentsLexerCombo.setEnabled(False)
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173 self.pygmentsLabel.setEnabled(False)
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174
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175
0
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176 def create(dlg):
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177 """
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178 Module function to create the configuration page.
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179
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180 @param dlg reference to the configuration dialog
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181 @return reference to the instantiated page (ConfigurationPageBase)
0
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182 """
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183 page = EditorHighlightersPage(dlg.getLexers())
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184 return page

eric ide

mercurial