Mercurial Repositories > eric / file comparison
comparison: src/eric7/Plugins/WizardPlugins/PyRegExpWizard/PyRegExpWizardCharactersDialog.py
src/eric7/Plugins/WizardPlugins/PyRegExpWizard/PyRegExpWizardCharactersDialog.py
- branch
- eric7
- changeset 9209
- b99e7fd55fd3
- parent 8881
- 54e42bc2437a
- child 9221
- bf71ee032bb4
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| 9208:3fc8dfeb6ebe | 9209:b99e7fd55fd3 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2004 - 2022 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a dialog for entering character classes. | |
| 8 """ | |
| 9 | |
| 10 from PyQt6.QtCore import QRegularExpression | |
| 11 from PyQt6.QtGui import QRegularExpressionValidator | |
| 12 from PyQt6.QtWidgets import ( | |
| 13 QSizePolicy, QSpacerItem, QWidget, QHBoxLayout, QLineEdit, QPushButton, | |
| 14 QDialog, QScrollArea, QComboBox, QVBoxLayout, QLabel | |
| 15 ) | |
| 16 | |
| 17 from .Ui_PyRegExpWizardCharactersDialog import ( | |
| 18 Ui_PyRegExpWizardCharactersDialog | |
| 19 ) | |
| 20 | |
| 21 | |
| 22 class PyRegExpWizardCharactersDialog( | |
| 23 QDialog, Ui_PyRegExpWizardCharactersDialog): | |
| 24 """ | |
| 25 Class implementing a dialog for entering character classes. | |
| 26 """ | |
| 27 specialChars = { | |
| 28 4: "\\a", | |
| 29 5: "\\f", | |
| 30 6: "\\n", | |
| 31 7: "\\r", | |
| 32 8: "\\t", | |
| 33 9: "\\v" | |
| 34 } | |
| 35 | |
| 36 predefinedClasses = ["\\s", "\\S", "\\w", "\\W", "\\d", "\\D"] | |
| 37 | |
| 38 def __init__(self, parent=None): | |
| 39 """ | |
| 40 Constructor | |
| 41 | |
| 42 @param parent parent widget (QWidget) | |
| 43 """ | |
| 44 super().__init__(parent) | |
| 45 self.setupUi(self) | |
| 46 | |
| 47 self.comboItems = [] | |
| 48 self.singleComboItems = [] # these are in addition to the above | |
| 49 self.comboItems.append(self.tr("Normal character")) | |
| 50 self.comboItems.append( | |
| 51 self.tr("Unicode character in hexadecimal notation")) | |
| 52 self.comboItems.append( | |
| 53 self.tr("Unicode character in octal notation")) | |
| 54 self.singleComboItems.append(self.tr("---")) | |
| 55 self.singleComboItems.append(self.tr("Bell character (\\a)")) | |
| 56 self.singleComboItems.append(self.tr("Page break (\\f)")) | |
| 57 self.singleComboItems.append(self.tr("Line feed (\\n)")) | |
| 58 self.singleComboItems.append(self.tr("Carriage return (\\r)")) | |
| 59 self.singleComboItems.append(self.tr("Horizontal tabulator (\\t)")) | |
| 60 self.singleComboItems.append(self.tr("Vertical tabulator (\\v)")) | |
| 61 | |
| 62 self.charValidator = QRegularExpressionValidator( | |
| 63 QRegularExpression(".{0,1}"), self) | |
| 64 self.hexValidator = QRegularExpressionValidator( | |
| 65 QRegularExpression("[0-9a-fA-F]{0,4}"), self) | |
| 66 self.octValidator = QRegularExpressionValidator( | |
| 67 QRegularExpression("[0-3]?[0-7]{0,2}"), self) | |
| 68 | |
| 69 # generate dialog part for single characters | |
| 70 self.singlesBoxLayout = QVBoxLayout(self.singlesBox) | |
| 71 self.singlesBoxLayout.setObjectName("singlesBoxLayout") | |
| 72 self.singlesBoxLayout.setSpacing(6) | |
| 73 self.singlesBoxLayout.setContentsMargins(6, 6, 6, 6) | |
| 74 self.singlesBox.setLayout(self.singlesBoxLayout) | |
| 75 self.singlesView = QScrollArea(self.singlesBox) | |
| 76 self.singlesView.setObjectName("singlesView") | |
| 77 self.singlesBoxLayout.addWidget(self.singlesView) | |
| 78 | |
| 79 self.singlesItemsBox = QWidget(self) | |
| 80 self.singlesView.setWidget(self.singlesItemsBox) | |
| 81 self.singlesItemsBox.setObjectName("singlesItemsBox") | |
| 82 self.singlesItemsBoxLayout = QVBoxLayout(self.singlesItemsBox) | |
| 83 self.singlesItemsBoxLayout.setContentsMargins(6, 6, 6, 6) | |
| 84 self.singlesItemsBoxLayout.setSpacing(6) | |
| 85 self.singlesItemsBox.setLayout(self.singlesItemsBoxLayout) | |
| 86 self.singlesEntries = [] | |
| 87 self.__addSinglesLine() | |
| 88 | |
| 89 hlayout0 = QHBoxLayout() | |
| 90 hlayout0.setContentsMargins(0, 0, 0, 0) | |
| 91 hlayout0.setSpacing(6) | |
| 92 hlayout0.setObjectName("hlayout0") | |
| 93 self.moreSinglesButton = QPushButton( | |
| 94 self.tr("Additional Entries"), self.singlesBox) | |
| 95 self.moreSinglesButton.setObjectName("moreSinglesButton") | |
| 96 hlayout0.addWidget(self.moreSinglesButton) | |
| 97 hspacer0 = QSpacerItem( | |
| 98 30, 20, QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Minimum) | |
| 99 hlayout0.addItem(hspacer0) | |
| 100 self.singlesBoxLayout.addLayout(hlayout0) | |
| 101 self.moreSinglesButton.clicked.connect(self.__addSinglesLine) | |
| 102 | |
| 103 # generate dialog part for character ranges | |
| 104 self.rangesBoxLayout = QVBoxLayout(self.rangesBox) | |
| 105 self.rangesBoxLayout.setObjectName("rangesBoxLayout") | |
| 106 self.rangesBoxLayout.setSpacing(6) | |
| 107 self.rangesBoxLayout.setContentsMargins(6, 6, 6, 6) | |
| 108 self.rangesBox.setLayout(self.rangesBoxLayout) | |
| 109 self.rangesView = QScrollArea(self.rangesBox) | |
| 110 self.rangesView.setObjectName("rangesView") | |
| 111 self.rangesBoxLayout.addWidget(self.rangesView) | |
| 112 | |
| 113 self.rangesItemsBox = QWidget(self) | |
| 114 self.rangesView.setWidget(self.rangesItemsBox) | |
| 115 self.rangesItemsBox.setObjectName("rangesItemsBox") | |
| 116 self.rangesItemsBoxLayout = QVBoxLayout(self.rangesItemsBox) | |
| 117 self.rangesItemsBoxLayout.setContentsMargins(6, 6, 6, 6) | |
| 118 self.rangesItemsBoxLayout.setSpacing(6) | |
| 119 self.rangesItemsBox.setLayout(self.rangesItemsBoxLayout) | |
| 120 self.rangesEntries = [] | |
| 121 self.__addRangesLine() | |
| 122 | |
| 123 hlayout1 = QHBoxLayout() | |
| 124 hlayout1.setContentsMargins(0, 0, 0, 0) | |
| 125 hlayout1.setSpacing(6) | |
| 126 hlayout1.setObjectName("hlayout1") | |
| 127 self.moreRangesButton = QPushButton( | |
| 128 self.tr("Additional Entries"), self.rangesBox) | |
| 129 self.moreSinglesButton.setObjectName("moreRangesButton") | |
| 130 hlayout1.addWidget(self.moreRangesButton) | |
| 131 hspacer1 = QSpacerItem( | |
| 132 30, 20, QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Minimum) | |
| 133 hlayout1.addItem(hspacer1) | |
| 134 self.rangesBoxLayout.addLayout(hlayout1) | |
| 135 self.moreRangesButton.clicked.connect(self.__addRangesLine) | |
| 136 | |
| 137 def __addSinglesLine(self): | |
| 138 """ | |
| 139 Private slot to add a line of entry widgets for single characters. | |
| 140 """ | |
| 141 hbox = QWidget(self.singlesItemsBox) | |
| 142 hboxLayout = QHBoxLayout(hbox) | |
| 143 hboxLayout.setContentsMargins(0, 0, 0, 0) | |
| 144 hboxLayout.setSpacing(6) | |
| 145 hbox.setLayout(hboxLayout) | |
| 146 cb1 = QComboBox(hbox) | |
| 147 cb1.setEditable(False) | |
| 148 cb1.addItems(self.comboItems) | |
| 149 cb1.addItems(self.singleComboItems) | |
| 150 hboxLayout.addWidget(cb1) | |
| 151 le1 = QLineEdit(hbox) | |
| 152 le1.setValidator(self.charValidator) | |
| 153 hboxLayout.addWidget(le1) | |
| 154 cb2 = QComboBox(hbox) | |
| 155 cb2.setEditable(False) | |
| 156 cb2.addItems(self.comboItems) | |
| 157 cb2.addItems(self.singleComboItems) | |
| 158 hboxLayout.addWidget(cb2) | |
| 159 le2 = QLineEdit(hbox) | |
| 160 le2.setValidator(self.charValidator) | |
| 161 hboxLayout.addWidget(le2) | |
| 162 self.singlesItemsBoxLayout.addWidget(hbox) | |
| 163 | |
| 164 cb1.activated[int].connect( | |
| 165 lambda i: self.__singlesCharTypeSelected(i, cb1)) | |
| 166 cb2.activated[int].connect( | |
| 167 lambda i: self.__singlesCharTypeSelected(i, cb2)) | |
| 168 hbox.show() | |
| 169 | |
| 170 self.singlesItemsBox.adjustSize() | |
| 171 | |
| 172 self.singlesEntries.append([cb1, le1]) | |
| 173 self.singlesEntries.append([cb2, le2]) | |
| 174 | |
| 175 def __addRangesLine(self): | |
| 176 """ | |
| 177 Private slot to add a line of entry widgets for character ranges. | |
| 178 """ | |
| 179 hbox = QWidget(self.rangesItemsBox) | |
| 180 hboxLayout = QHBoxLayout(hbox) | |
| 181 hboxLayout.setContentsMargins(0, 0, 0, 0) | |
| 182 hboxLayout.setSpacing(6) | |
| 183 hbox.setLayout(hboxLayout) | |
| 184 cb1 = QComboBox(hbox) | |
| 185 cb1.setEditable(False) | |
| 186 cb1.addItems(self.comboItems) | |
| 187 hboxLayout.addWidget(cb1) | |
| 188 l1 = QLabel(self.tr("Between:"), hbox) | |
| 189 hboxLayout.addWidget(l1) | |
| 190 le1 = QLineEdit(hbox) | |
| 191 le1.setValidator(self.charValidator) | |
| 192 hboxLayout.addWidget(le1) | |
| 193 l2 = QLabel(self.tr("And:"), hbox) | |
| 194 hboxLayout.addWidget(l2) | |
| 195 le2 = QLineEdit(hbox) | |
| 196 le2.setValidator(self.charValidator) | |
| 197 hboxLayout.addWidget(le2) | |
| 198 self.rangesItemsBoxLayout.addWidget(hbox) | |
| 199 | |
| 200 cb1.activated[int].connect( | |
| 201 lambda i: self.__rangesCharTypeSelected(i, cb1)) | |
| 202 | |
| 203 hbox.show() | |
| 204 | |
| 205 self.rangesItemsBox.adjustSize() | |
| 206 | |
| 207 self.rangesEntries.append([cb1, le1, le2]) | |
| 208 | |
| 209 def __performSelectedAction(self, index, lineedit): | |
| 210 """ | |
| 211 Private method performing some actions depending on the input. | |
| 212 | |
| 213 @param index selected list index (integer) | |
| 214 @param lineedit line edit widget to act on (QLineEdit) | |
| 215 """ | |
| 216 if index < 3: | |
| 217 lineedit.setEnabled(True) | |
| 218 if index == 0: | |
| 219 lineedit.setValidator(self.charValidator) | |
| 220 elif index == 1: | |
| 221 lineedit.setValidator(self.hexValidator) | |
| 222 elif index == 2: | |
| 223 lineedit.setValidator(self.octValidator) | |
| 224 elif index > 3: | |
| 225 lineedit.setEnabled(False) | |
| 226 lineedit.clear() | |
| 227 | |
| 228 def __singlesCharTypeSelected(self, index, combo): | |
| 229 """ | |
| 230 Private slot to handle the activated(int) signal of the single chars | |
| 231 combo boxes. | |
| 232 | |
| 233 @param index selected list index | |
| 234 @type int | |
| 235 @param combo reference to the combo box | |
| 236 @type QComboBox | |
| 237 """ | |
| 238 for entriesList in self.singlesEntries: | |
| 239 if combo == entriesList[0]: | |
| 240 self.__performSelectedAction(index, entriesList[1]) | |
| 241 break | |
| 242 | |
| 243 def __rangesCharTypeSelected(self, index, combo): | |
| 244 """ | |
| 245 Private slot to handle the activated(int) signal of the char ranges | |
| 246 combo boxes. | |
| 247 | |
| 248 @param index selected list index | |
| 249 @type int | |
| 250 @param combo reference to the combo box | |
| 251 @type QComboBox | |
| 252 """ | |
| 253 for entriesList in self.rangesEntries: | |
| 254 if combo == entriesList[0]: | |
| 255 self.__performSelectedAction(index, entriesList[1]) | |
| 256 self.__performSelectedAction(index, entriesList[2]) | |
| 257 break | |
| 258 | |
| 259 def __formatCharacter(self, index, char): | |
| 260 """ | |
| 261 Private method to format the characters entered into the dialog. | |
| 262 | |
| 263 @param index selected list index (integer) | |
| 264 @param char character string enetered into the dialog (string) | |
| 265 @return formated character string (string) | |
| 266 """ | |
| 267 if index == 0: | |
| 268 return char | |
| 269 elif index == 1: | |
| 270 return "\\x{0}".format(char.lower()) | |
| 271 elif index == 2: | |
| 272 return "\\0{0}".format(char) | |
| 273 else: | |
| 274 try: | |
| 275 return self.specialChars[index] | |
| 276 except KeyError: | |
| 277 return "" | |
| 278 | |
| 279 def getCharacters(self): | |
| 280 """ | |
| 281 Public method to return the character string assembled via the dialog. | |
| 282 | |
| 283 @return formatted string for character classes (string) | |
| 284 """ | |
| 285 regexp = "" | |
| 286 | |
| 287 # negative character range | |
| 288 if self.negativeCheckBox.isChecked(): | |
| 289 regexp += "^" | |
| 290 | |
| 291 # predefined character ranges | |
| 292 if self.wordCharCheckBox.isChecked(): | |
| 293 regexp += "\\w" | |
| 294 if self.nonWordCharCheckBox.isChecked(): | |
| 295 regexp += "\\W" | |
| 296 if self.digitsCheckBox.isChecked(): | |
| 297 regexp += "\\d" | |
| 298 if self.nonDigitsCheckBox.isChecked(): | |
| 299 regexp += "\\D" | |
| 300 if self.whitespaceCheckBox.isChecked(): | |
| 301 regexp += "\\s" | |
| 302 if self.nonWhitespaceCheckBox.isChecked(): | |
| 303 regexp += "\\S" | |
| 304 | |
| 305 # single characters | |
| 306 for entrieslist in self.singlesEntries: | |
| 307 index = entrieslist[0].currentIndex() | |
| 308 char = entrieslist[1].text() | |
| 309 regexp += self.__formatCharacter(index, char) | |
| 310 | |
| 311 # character ranges | |
| 312 for entrieslist in self.rangesEntries: | |
| 313 if ( | |
| 314 entrieslist[1].text() == "" or | |
| 315 entrieslist[2].text() == "" | |
| 316 ): | |
| 317 continue | |
| 318 index = entrieslist[0].currentIndex() | |
| 319 char1 = entrieslist[1].text() | |
| 320 char2 = entrieslist[2].text() | |
| 321 regexp += "{0}-{1}".format( | |
| 322 self.__formatCharacter(index, char1), | |
| 323 self.__formatCharacter(index, char2)) | |
| 324 | |
| 325 if regexp: | |
| 326 if ( | |
| 327 (len(regexp) == 2 and | |
| 328 (regexp in self.predefinedClasses or | |
| 329 regexp in self.specialChars)) or | |
| 330 len(regexp) == 1 | |
| 331 ): | |
| 332 return regexp | |
| 333 else: | |
| 334 return "[{0}]".format(regexp) | |
| 335 else: | |
| 336 return "" |
