Mercurial Repositories > eric / file comparison
comparison: eric6/Plugins/WizardPlugins/QRegularExpressionWizard/QRegularExpressionWizardDialog.py
eric6/Plugins/WizardPlugins/QRegularExpressionWizard/QRegularExpressionWizardDialog.py
- changeset 6942
- 2602857055c5
- parent 6645
- ad476851d7e0
- child 7229
- 53054eb5b15a
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| 6941:f99d60d6b59b | 6942:2602857055c5 |
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2013 - 2019 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the QRegularExpression wizard dialog. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 import os | |
| 13 import re | |
| 14 import sys | |
| 15 import json | |
| 16 | |
| 17 from PyQt5.QtCore import QFileInfo, pyqtSlot, QProcess, QByteArray | |
| 18 from PyQt5.QtGui import QClipboard, QTextCursor | |
| 19 from PyQt5.QtWidgets import QWidget, QDialog, QInputDialog, QApplication, \ | |
| 20 QDialogButtonBox, QVBoxLayout, QTableWidgetItem | |
| 21 | |
| 22 from E5Gui import E5MessageBox, E5FileDialog | |
| 23 from E5Gui.E5MainWindow import E5MainWindow | |
| 24 | |
| 25 from .Ui_QRegularExpressionWizardDialog import \ | |
| 26 Ui_QRegularExpressionWizardDialog | |
| 27 | |
| 28 import UI.PixmapCache | |
| 29 | |
| 30 import Utilities | |
| 31 import Preferences | |
| 32 | |
| 33 | |
| 34 class QRegularExpressionWizardWidget(QWidget, | |
| 35 Ui_QRegularExpressionWizardDialog): | |
| 36 """ | |
| 37 Class implementing the QRegularExpression wizard dialog. | |
| 38 """ | |
| 39 def __init__(self, parent=None, fromEric=True): | |
| 40 """ | |
| 41 Constructor | |
| 42 | |
| 43 @param parent parent widget (QWidget) | |
| 44 @param fromEric flag indicating a call from within eric6 | |
| 45 """ | |
| 46 super(QRegularExpressionWizardWidget, self).__init__(parent) | |
| 47 self.setupUi(self) | |
| 48 | |
| 49 # initialize icons of the tool buttons | |
| 50 self.commentButton.setIcon(UI.PixmapCache.getIcon("comment.png")) | |
| 51 self.charButton.setIcon(UI.PixmapCache.getIcon("characters.png")) | |
| 52 self.anycharButton.setIcon(UI.PixmapCache.getIcon("anychar.png")) | |
| 53 self.repeatButton.setIcon(UI.PixmapCache.getIcon("repeat.png")) | |
| 54 self.nonGroupButton.setIcon(UI.PixmapCache.getIcon("nongroup.png")) | |
| 55 self.atomicGroupButton.setIcon( | |
| 56 UI.PixmapCache.getIcon("atomicgroup.png")) | |
| 57 self.groupButton.setIcon(UI.PixmapCache.getIcon("group.png")) | |
| 58 self.namedGroupButton.setIcon(UI.PixmapCache.getIcon("namedgroup.png")) | |
| 59 self.namedReferenceButton.setIcon( | |
| 60 UI.PixmapCache.getIcon("namedreference.png")) | |
| 61 self.altnButton.setIcon(UI.PixmapCache.getIcon("altn.png")) | |
| 62 self.beglineButton.setIcon(UI.PixmapCache.getIcon("begline.png")) | |
| 63 self.endlineButton.setIcon(UI.PixmapCache.getIcon("endline.png")) | |
| 64 self.wordboundButton.setIcon( | |
| 65 UI.PixmapCache.getIcon("wordboundary.png")) | |
| 66 self.nonwordboundButton.setIcon( | |
| 67 UI.PixmapCache.getIcon("nonwordboundary.png")) | |
| 68 self.poslookaheadButton.setIcon( | |
| 69 UI.PixmapCache.getIcon("poslookahead.png")) | |
| 70 self.neglookaheadButton.setIcon( | |
| 71 UI.PixmapCache.getIcon("neglookahead.png")) | |
| 72 self.poslookbehindButton.setIcon( | |
| 73 UI.PixmapCache.getIcon("poslookbehind.png")) | |
| 74 self.neglookbehindButton.setIcon( | |
| 75 UI.PixmapCache.getIcon("neglookbehind.png")) | |
| 76 self.undoButton.setIcon(UI.PixmapCache.getIcon("editUndo.png")) | |
| 77 self.redoButton.setIcon(UI.PixmapCache.getIcon("editRedo.png")) | |
| 78 | |
| 79 self.namedGroups = re.compile(r"""\(?P<([^>]+)>""").findall | |
| 80 | |
| 81 # start the PyQt5 server part | |
| 82 self.__pyqt5Available = False | |
| 83 self.__pyqt5Server = QProcess(self) | |
| 84 self.__pyqt5Server.start( | |
| 85 sys.executable, [os.path.join( | |
| 86 os.path.dirname(__file__), "QRegularExpressionWizardServer.py") | |
| 87 ]) | |
| 88 if self.__pyqt5Server.waitForStarted(5000): | |
| 89 self.__pyqt5Server.setReadChannel(QProcess.StandardOutput) | |
| 90 if self.__sendCommand("available"): | |
| 91 response = self.__receiveResponse() | |
| 92 if response and response["available"]: | |
| 93 self.__pyqt5Available = True | |
| 94 | |
| 95 self.saveButton = self.buttonBox.addButton( | |
| 96 self.tr("Save"), QDialogButtonBox.ActionRole) | |
| 97 self.saveButton.setToolTip( | |
| 98 self.tr("Save the regular expression to a file")) | |
| 99 self.loadButton = self.buttonBox.addButton( | |
| 100 self.tr("Load"), QDialogButtonBox.ActionRole) | |
| 101 self.loadButton.setToolTip( | |
| 102 self.tr("Load a regular expression from a file")) | |
| 103 if self.__pyqt5Available: | |
| 104 self.validateButton = self.buttonBox.addButton( | |
| 105 self.tr("Validate"), QDialogButtonBox.ActionRole) | |
| 106 self.validateButton.setToolTip( | |
| 107 self.tr("Validate the regular expression")) | |
| 108 self.executeButton = self.buttonBox.addButton( | |
| 109 self.tr("Execute"), QDialogButtonBox.ActionRole) | |
| 110 self.executeButton.setToolTip( | |
| 111 self.tr("Execute the regular expression")) | |
| 112 self.nextButton = self.buttonBox.addButton( | |
| 113 self.tr("Next match"), QDialogButtonBox.ActionRole) | |
| 114 self.nextButton.setToolTip( | |
| 115 self.tr("Show the next match of the regular expression")) | |
| 116 self.nextButton.setEnabled(False) | |
| 117 else: | |
| 118 self.validateButton = None | |
| 119 self.executeButton = None | |
| 120 self.nextButton = None | |
| 121 | |
| 122 if fromEric: | |
| 123 self.buttonBox.setStandardButtons( | |
| 124 QDialogButtonBox.Cancel | QDialogButtonBox.Ok) | |
| 125 self.copyButton = None | |
| 126 else: | |
| 127 self.copyButton = self.buttonBox.addButton( | |
| 128 self.tr("Copy"), QDialogButtonBox.ActionRole) | |
| 129 self.copyButton.setToolTip( | |
| 130 self.tr("Copy the regular expression to the clipboard")) | |
| 131 self.buttonBox.setStandardButtons(QDialogButtonBox.Close) | |
| 132 self.variableLabel.hide() | |
| 133 self.variableLineEdit.hide() | |
| 134 self.variableLine.hide() | |
| 135 self.regexpTextEdit.setFocus() | |
| 136 | |
| 137 def __sendCommand(self, command, **kw): | |
| 138 """ | |
| 139 Private method to send a command to the PyQt5 server. | |
| 140 | |
| 141 @param command dictionary with command string and related | |
| 142 data (dict) | |
| 143 @keyparam kw parameters for the command | |
| 144 @return flag indicating a successful transmission (boolean) | |
| 145 """ | |
| 146 result = False | |
| 147 if command: | |
| 148 commandDict = {"command": command} | |
| 149 commandDict.update(kw) | |
| 150 commandStr = json.dumps(commandDict) + "\n" | |
| 151 data = QByteArray(commandStr.encode("utf-8")) | |
| 152 self.__pyqt5Server.write(data) | |
| 153 result = self.__pyqt5Server.waitForBytesWritten(10000) | |
| 154 return result | |
| 155 | |
| 156 def __receiveResponse(self): | |
| 157 """ | |
| 158 Private method to receive a response from the PyQt5 server. | |
| 159 | |
| 160 @return response dictionary (dict) | |
| 161 """ | |
| 162 responseDict = {} | |
| 163 if self.__pyqt5Server.waitForReadyRead(10000): | |
| 164 data = bytes(self.__pyqt5Server.readAllStandardOutput()) | |
| 165 responseStr = data.decode("utf-8") | |
| 166 responseDict = json.loads(responseStr) | |
| 167 if responseDict["error"]: | |
| 168 E5MessageBox.critical( | |
| 169 self, | |
| 170 self.tr("Communication Error"), | |
| 171 self.tr("""<p>The PyQt5 backend reported""" | |
| 172 """ an error.</p><p>{0}</p>""") | |
| 173 .format(responseDict["error"])) | |
| 174 responseDict = {} | |
| 175 | |
| 176 return responseDict | |
| 177 | |
| 178 def shutdown(self): | |
| 179 """ | |
| 180 Public method to shut down the PyQt5 server part. | |
| 181 """ | |
| 182 self.__sendCommand("exit") | |
| 183 self.__pyqt5Server.waitForFinished(5000) | |
| 184 | |
| 185 def __insertString(self, s, steps=0): | |
| 186 """ | |
| 187 Private method to insert a string into line edit and move cursor. | |
| 188 | |
| 189 @param s string to be inserted into the regexp line edit | |
| 190 (string) | |
| 191 @param steps number of characters to move the cursor (integer). | |
| 192 Negative steps moves cursor back, positives forward. | |
| 193 """ | |
| 194 self.regexpTextEdit.insertPlainText(s) | |
| 195 tc = self.regexpTextEdit.textCursor() | |
| 196 if steps != 0: | |
| 197 if steps < 0: | |
| 198 act = QTextCursor.Left | |
| 199 steps = abs(steps) | |
| 200 else: | |
| 201 act = QTextCursor.Right | |
| 202 for _ in range(steps): | |
| 203 tc.movePosition(act) | |
| 204 self.regexpTextEdit.setTextCursor(tc) | |
| 205 | |
| 206 @pyqtSlot() | |
| 207 def on_commentButton_clicked(self): | |
| 208 """ | |
| 209 Private slot to handle the comment toolbutton. | |
| 210 """ | |
| 211 self.__insertString("(?#)", -1) | |
| 212 | |
| 213 @pyqtSlot() | |
| 214 def on_charButton_clicked(self): | |
| 215 """ | |
| 216 Private slot to handle the characters toolbutton. | |
| 217 """ | |
| 218 from .QRegularExpressionWizardCharactersDialog import \ | |
| 219 QRegularExpressionWizardCharactersDialog | |
| 220 dlg = QRegularExpressionWizardCharactersDialog(self) | |
| 221 if dlg.exec_() == QDialog.Accepted: | |
| 222 self.__insertString(dlg.getCharacters()) | |
| 223 | |
| 224 @pyqtSlot() | |
| 225 def on_anycharButton_clicked(self): | |
| 226 """ | |
| 227 Private slot to handle the any character toolbutton. | |
| 228 """ | |
| 229 self.__insertString(".") | |
| 230 | |
| 231 @pyqtSlot() | |
| 232 def on_repeatButton_clicked(self): | |
| 233 """ | |
| 234 Private slot to handle the repeat toolbutton. | |
| 235 """ | |
| 236 from .QRegularExpressionWizardRepeatDialog import \ | |
| 237 QRegularExpressionWizardRepeatDialog | |
| 238 dlg = QRegularExpressionWizardRepeatDialog(self) | |
| 239 if dlg.exec_() == QDialog.Accepted: | |
| 240 self.__insertString(dlg.getRepeat()) | |
| 241 | |
| 242 @pyqtSlot() | |
| 243 def on_nonGroupButton_clicked(self): | |
| 244 """ | |
| 245 Private slot to handle the non group toolbutton. | |
| 246 """ | |
| 247 self.__insertString("(?:)", -1) | |
| 248 | |
| 249 @pyqtSlot() | |
| 250 def on_atomicGroupButton_clicked(self): | |
| 251 """ | |
| 252 Private slot to handle the atomic non group toolbutton. | |
| 253 """ | |
| 254 self.__insertString("(?>)", -1) | |
| 255 | |
| 256 @pyqtSlot() | |
| 257 def on_groupButton_clicked(self): | |
| 258 """ | |
| 259 Private slot to handle the group toolbutton. | |
| 260 """ | |
| 261 self.__insertString("()", -1) | |
| 262 | |
| 263 @pyqtSlot() | |
| 264 def on_namedGroupButton_clicked(self): | |
| 265 """ | |
| 266 Private slot to handle the named group toolbutton. | |
| 267 """ | |
| 268 self.__insertString("(?P<>)", -2) | |
| 269 | |
| 270 @pyqtSlot() | |
| 271 def on_namedReferenceButton_clicked(self): | |
| 272 """ | |
| 273 Private slot to handle the named reference toolbutton. | |
| 274 """ | |
| 275 # determine cursor position as length into text | |
| 276 length = self.regexpTextEdit.textCursor().position() | |
| 277 | |
| 278 # only present group names that occur before the current | |
| 279 # cursor position | |
| 280 regex = self.regexpTextEdit.toPlainText()[:length] | |
| 281 names = self.namedGroups(regex) | |
| 282 if not names: | |
| 283 E5MessageBox.information( | |
| 284 self, | |
| 285 self.tr("Named reference"), | |
| 286 self.tr("""No named groups have been defined yet.""")) | |
| 287 return | |
| 288 | |
| 289 groupName, ok = QInputDialog.getItem( | |
| 290 self, | |
| 291 self.tr("Named reference"), | |
| 292 self.tr("Select group name:"), | |
| 293 names, | |
| 294 0, True) | |
| 295 if ok and groupName: | |
| 296 self.__insertString("(?P={0})".format(groupName)) | |
| 297 | |
| 298 @pyqtSlot() | |
| 299 def on_altnButton_clicked(self): | |
| 300 """ | |
| 301 Private slot to handle the alternatives toolbutton. | |
| 302 """ | |
| 303 self.__insertString("(|)", -2) | |
| 304 | |
| 305 @pyqtSlot() | |
| 306 def on_beglineButton_clicked(self): | |
| 307 """ | |
| 308 Private slot to handle the begin line toolbutton. | |
| 309 """ | |
| 310 self.__insertString("^") | |
| 311 | |
| 312 @pyqtSlot() | |
| 313 def on_endlineButton_clicked(self): | |
| 314 """ | |
| 315 Private slot to handle the end line toolbutton. | |
| 316 """ | |
| 317 self.__insertString("$") | |
| 318 | |
| 319 @pyqtSlot() | |
| 320 def on_wordboundButton_clicked(self): | |
| 321 """ | |
| 322 Private slot to handle the word boundary toolbutton. | |
| 323 """ | |
| 324 self.__insertString("\\b") | |
| 325 | |
| 326 @pyqtSlot() | |
| 327 def on_nonwordboundButton_clicked(self): | |
| 328 """ | |
| 329 Private slot to handle the non word boundary toolbutton. | |
| 330 """ | |
| 331 self.__insertString("\\B") | |
| 332 | |
| 333 @pyqtSlot() | |
| 334 def on_poslookaheadButton_clicked(self): | |
| 335 """ | |
| 336 Private slot to handle the positive lookahead toolbutton. | |
| 337 """ | |
| 338 self.__insertString("(?=)", -1) | |
| 339 | |
| 340 @pyqtSlot() | |
| 341 def on_neglookaheadButton_clicked(self): | |
| 342 """ | |
| 343 Private slot to handle the negative lookahead toolbutton. | |
| 344 """ | |
| 345 self.__insertString("(?!)", -1) | |
| 346 | |
| 347 @pyqtSlot() | |
| 348 def on_poslookbehindButton_clicked(self): | |
| 349 """ | |
| 350 Private slot to handle the positive lookbehind toolbutton. | |
| 351 """ | |
| 352 self.__insertString("(?<=)", -1) | |
| 353 | |
| 354 @pyqtSlot() | |
| 355 def on_neglookbehindButton_clicked(self): | |
| 356 """ | |
| 357 Private slot to handle the negative lookbehind toolbutton. | |
| 358 """ | |
| 359 self.__insertString("(?<!)", -1) | |
| 360 | |
| 361 @pyqtSlot() | |
| 362 def on_undoButton_clicked(self): | |
| 363 """ | |
| 364 Private slot to handle the undo action. | |
| 365 """ | |
| 366 self.regexpTextEdit.document().undo() | |
| 367 | |
| 368 @pyqtSlot() | |
| 369 def on_redoButton_clicked(self): | |
| 370 """ | |
| 371 Private slot to handle the redo action. | |
| 372 """ | |
| 373 self.regexpTextEdit.document().redo() | |
| 374 | |
| 375 def on_buttonBox_clicked(self, button): | |
| 376 """ | |
| 377 Private slot called by a button of the button box clicked. | |
| 378 | |
| 379 @param button button that was clicked (QAbstractButton) | |
| 380 """ | |
| 381 if button == self.validateButton: | |
| 382 self.on_validateButton_clicked() | |
| 383 elif button == self.executeButton: | |
| 384 self.on_executeButton_clicked() | |
| 385 elif button == self.saveButton: | |
| 386 self.on_saveButton_clicked() | |
| 387 elif button == self.loadButton: | |
| 388 self.on_loadButton_clicked() | |
| 389 elif button == self.nextButton: | |
| 390 self.on_nextButton_clicked() | |
| 391 elif self.copyButton and button == self.copyButton: | |
| 392 self.on_copyButton_clicked() | |
| 393 | |
| 394 @pyqtSlot() | |
| 395 def on_saveButton_clicked(self): | |
| 396 """ | |
| 397 Private slot to save the QRegularExpression to a file. | |
| 398 """ | |
| 399 fname, selectedFilter = E5FileDialog.getSaveFileNameAndFilter( | |
| 400 self, | |
| 401 self.tr("Save regular expression"), | |
| 402 "", | |
| 403 self.tr("RegExp Files (*.rx);;All Files (*)"), | |
| 404 None, | |
| 405 E5FileDialog.Options(E5FileDialog.DontConfirmOverwrite)) | |
| 406 if fname: | |
| 407 ext = QFileInfo(fname).suffix() | |
| 408 if not ext: | |
| 409 ex = selectedFilter.split("(*")[1].split(")")[0] | |
| 410 if ex: | |
| 411 fname += ex | |
| 412 if QFileInfo(fname).exists(): | |
| 413 res = E5MessageBox.yesNo( | |
| 414 self, | |
| 415 self.tr("Save regular expression"), | |
| 416 self.tr("<p>The file <b>{0}</b> already exists." | |
| 417 " Overwrite it?</p>").format(fname), | |
| 418 icon=E5MessageBox.Warning) | |
| 419 if not res: | |
| 420 return | |
| 421 | |
| 422 try: | |
| 423 f = open( | |
| 424 Utilities.toNativeSeparators(fname), "w", encoding="utf-8") | |
| 425 f.write(self.regexpTextEdit.toPlainText()) | |
| 426 f.close() | |
| 427 except IOError as err: | |
| 428 E5MessageBox.information( | |
| 429 self, | |
| 430 self.tr("Save regular expression"), | |
| 431 self.tr("""<p>The regular expression could not""" | |
| 432 """ be saved.</p><p>Reason: {0}</p>""") | |
| 433 .format(str(err))) | |
| 434 | |
| 435 @pyqtSlot() | |
| 436 def on_loadButton_clicked(self): | |
| 437 """ | |
| 438 Private slot to load a QRegularExpression from a file. | |
| 439 """ | |
| 440 fname = E5FileDialog.getOpenFileName( | |
| 441 self, | |
| 442 self.tr("Load regular expression"), | |
| 443 "", | |
| 444 self.tr("RegExp Files (*.rx);;All Files (*)")) | |
| 445 if fname: | |
| 446 try: | |
| 447 f = open( | |
| 448 Utilities.toNativeSeparators(fname), "r", encoding="utf-8") | |
| 449 regexp = f.read() | |
| 450 f.close() | |
| 451 self.regexpTextEdit.setPlainText(regexp) | |
| 452 except IOError as err: | |
| 453 E5MessageBox.information( | |
| 454 self, | |
| 455 self.tr("Save regular expression"), | |
| 456 self.tr("""<p>The regular expression could not""" | |
| 457 """ be saved.</p><p>Reason: {0}</p>""") | |
| 458 .format(str(err))) | |
| 459 | |
| 460 @pyqtSlot() | |
| 461 def on_copyButton_clicked(self): | |
| 462 """ | |
| 463 Private slot to copy the QRegularExpression string into the clipboard. | |
| 464 | |
| 465 This slot is only available, if not called from within eric6. | |
| 466 """ | |
| 467 escaped = self.regexpTextEdit.toPlainText() | |
| 468 if escaped: | |
| 469 escaped = escaped.replace("\\", "\\\\") | |
| 470 cb = QApplication.clipboard() | |
| 471 cb.setText(escaped, QClipboard.Clipboard) | |
| 472 if cb.supportsSelection(): | |
| 473 cb.setText(escaped, QClipboard.Selection) | |
| 474 | |
| 475 @pyqtSlot() | |
| 476 def on_validateButton_clicked(self): | |
| 477 """ | |
| 478 Private slot to validate the entered QRegularExpression. | |
| 479 """ | |
| 480 if not self.__pyqt5Available: | |
| 481 # only available for PyQt5 | |
| 482 return | |
| 483 | |
| 484 regexp = self.regexpTextEdit.toPlainText() | |
| 485 if regexp: | |
| 486 options = [] | |
| 487 if self.caseInsensitiveCheckBox.isChecked(): | |
| 488 options.append("CaseInsensitiveOption") | |
| 489 if self.multilineCheckBox.isChecked(): | |
| 490 options.append("MultilineOption") | |
| 491 if self.dotallCheckBox.isChecked(): | |
| 492 options.append("DotMatchesEverythingOption") | |
| 493 if self.extendedCheckBox.isChecked(): | |
| 494 options.append("ExtendedPatternSyntaxOption") | |
| 495 if self.greedinessCheckBox.isChecked(): | |
| 496 options.append("InvertedGreedinessOption") | |
| 497 if self.unicodeCheckBox.isChecked(): | |
| 498 options.append("UseUnicodePropertiesOption") | |
| 499 if self.captureCheckBox.isChecked(): | |
| 500 options.append("DontCaptureOption") | |
| 501 | |
| 502 if self.__sendCommand("validate", options=options, regexp=regexp): | |
| 503 response = self.__receiveResponse() | |
| 504 if response and "valid" in response: | |
| 505 if response["valid"]: | |
| 506 E5MessageBox.information( | |
| 507 self, | |
| 508 self.tr("Validation"), | |
| 509 self.tr( | |
| 510 """The regular expression is valid.""")) | |
| 511 else: | |
| 512 E5MessageBox.critical( | |
| 513 self, | |
| 514 self.tr("Error"), | |
| 515 self.tr("""Invalid regular expression: {0}""") | |
| 516 .format(response["errorMessage"])) | |
| 517 # move cursor to error offset | |
| 518 offset = response["errorOffset"] | |
| 519 tc = self.regexpTextEdit.textCursor() | |
| 520 tc.setPosition(offset) | |
| 521 self.regexpTextEdit.setTextCursor(tc) | |
| 522 self.regexpTextEdit.setFocus() | |
| 523 return | |
| 524 else: | |
| 525 E5MessageBox.critical( | |
| 526 self, | |
| 527 self.tr("Communication Error"), | |
| 528 self.tr("""Invalid response received from""" | |
| 529 """ PyQt5 backend.""")) | |
| 530 else: | |
| 531 E5MessageBox.critical( | |
| 532 self, | |
| 533 self.tr("Communication Error"), | |
| 534 self.tr("""Communication with PyQt5 backend""" | |
| 535 """ failed.""")) | |
| 536 else: | |
| 537 E5MessageBox.critical( | |
| 538 self, | |
| 539 self.tr("Error"), | |
| 540 self.tr("""A regular expression must be given.""")) | |
| 541 | |
| 542 @pyqtSlot() | |
| 543 def on_executeButton_clicked(self, startpos=0): | |
| 544 """ | |
| 545 Private slot to execute the entered QRegularExpression on the test | |
| 546 text. | |
| 547 | |
| 548 This slot will execute the entered QRegularExpression on the entered | |
| 549 test data and will display the result in the table part of the dialog. | |
| 550 | |
| 551 @param startpos starting position for the QRegularExpression matching | |
| 552 """ | |
| 553 if not self.__pyqt5Available: | |
| 554 # only available for PyQt5 | |
| 555 return | |
| 556 | |
| 557 regexp = self.regexpTextEdit.toPlainText() | |
| 558 text = self.textTextEdit.toPlainText() | |
| 559 if regexp and text: | |
| 560 options = [] | |
| 561 if self.caseInsensitiveCheckBox.isChecked(): | |
| 562 options.append("CaseInsensitiveOption") | |
| 563 if self.multilineCheckBox.isChecked(): | |
| 564 options.append("MultilineOption") | |
| 565 if self.dotallCheckBox.isChecked(): | |
| 566 options.append("DotMatchesEverythingOption") | |
| 567 if self.extendedCheckBox.isChecked(): | |
| 568 options.append("ExtendedPatternSyntaxOption") | |
| 569 if self.greedinessCheckBox.isChecked(): | |
| 570 options.append("InvertedGreedinessOption") | |
| 571 if self.unicodeCheckBox.isChecked(): | |
| 572 options.append("UseUnicodePropertiesOption") | |
| 573 if self.captureCheckBox.isChecked(): | |
| 574 options.append("DontCaptureOption") | |
| 575 | |
| 576 if self.__sendCommand("execute", options=options, regexp=regexp, | |
| 577 text=text, startpos=startpos): | |
| 578 response = self.__receiveResponse() | |
| 579 if response and ("valid" in response or "matched" in response): | |
| 580 if "valid" in response: | |
| 581 E5MessageBox.critical( | |
| 582 self, | |
| 583 self.tr("Error"), | |
| 584 self.tr("""Invalid regular expression: {0}""") | |
| 585 .format(response["errorMessage"])) | |
| 586 # move cursor to error offset | |
| 587 offset = response["errorOffset"] | |
| 588 tc = self.regexpTextEdit.textCursor() | |
| 589 tc.setPosition(offset) | |
| 590 self.regexpTextEdit.setTextCursor(tc) | |
| 591 self.regexpTextEdit.setFocus() | |
| 592 return | |
| 593 else: | |
| 594 row = 0 | |
| 595 OFFSET = 5 | |
| 596 | |
| 597 self.resultTable.setColumnCount(0) | |
| 598 self.resultTable.setColumnCount(3) | |
| 599 self.resultTable.setRowCount(0) | |
| 600 self.resultTable.setRowCount(OFFSET) | |
| 601 self.resultTable.setItem( | |
| 602 row, 0, QTableWidgetItem(self.tr("Regexp"))) | |
| 603 self.resultTable.setItem( | |
| 604 row, 1, QTableWidgetItem(regexp)) | |
| 605 if response["matched"]: | |
| 606 captures = response["captures"] | |
| 607 # index 0 is the complete match | |
| 608 offset = captures[0][1] | |
| 609 self.lastMatchEnd = captures[0][2] | |
| 610 self.nextButton.setEnabled(True) | |
| 611 row += 1 | |
| 612 self.resultTable.setItem( | |
| 613 row, 0, | |
| 614 QTableWidgetItem(self.tr("Offset"))) | |
| 615 self.resultTable.setItem( | |
| 616 row, 1, | |
| 617 QTableWidgetItem("{0:d}".format(offset))) | |
| 618 | |
| 619 row += 1 | |
| 620 self.resultTable.setItem( | |
| 621 row, 0, | |
| 622 QTableWidgetItem(self.tr("Captures"))) | |
| 623 self.resultTable.setItem( | |
| 624 row, 1, | |
| 625 QTableWidgetItem( | |
| 626 "{0:d}".format(len(captures) - 1))) | |
| 627 row += 1 | |
| 628 self.resultTable.setItem( | |
| 629 row, 1, | |
| 630 QTableWidgetItem(self.tr("Text"))) | |
| 631 self.resultTable.setItem( | |
| 632 row, 2, | |
| 633 QTableWidgetItem(self.tr("Characters"))) | |
| 634 | |
| 635 row += 1 | |
| 636 self.resultTable.setItem( | |
| 637 row, 0, | |
| 638 QTableWidgetItem(self.tr("Match"))) | |
| 639 self.resultTable.setItem( | |
| 640 row, 1, | |
| 641 QTableWidgetItem(captures[0][0])) | |
| 642 self.resultTable.setItem( | |
| 643 row, 2, | |
| 644 QTableWidgetItem( | |
| 645 "{0:d}".format(captures[0][3]))) | |
| 646 | |
| 647 for i in range(1, len(captures)): | |
| 648 if captures[i][0]: | |
| 649 row += 1 | |
| 650 self.resultTable.insertRow(row) | |
| 651 self.resultTable.setItem( | |
| 652 row, 0, | |
| 653 QTableWidgetItem( | |
| 654 self.tr("Capture #{0}") | |
| 655 .format(i))) | |
| 656 self.resultTable.setItem( | |
| 657 row, 1, | |
| 658 QTableWidgetItem(captures[i][0])) | |
| 659 self.resultTable.setItem( | |
| 660 row, 2, | |
| 661 QTableWidgetItem( | |
| 662 "{0:d}".format(captures[i][3]))) | |
| 663 | |
| 664 # highlight the matched text | |
| 665 tc = self.textTextEdit.textCursor() | |
| 666 tc.setPosition(offset) | |
| 667 tc.setPosition( | |
| 668 self.lastMatchEnd, QTextCursor.KeepAnchor) | |
| 669 self.textTextEdit.setTextCursor(tc) | |
| 670 else: | |
| 671 self.nextButton.setEnabled(False) | |
| 672 self.resultTable.setRowCount(2) | |
| 673 row += 1 | |
| 674 if startpos > 0: | |
| 675 self.resultTable.setItem( | |
| 676 row, 0, | |
| 677 QTableWidgetItem( | |
| 678 self.tr("No more matches"))) | |
| 679 else: | |
| 680 self.resultTable.setItem( | |
| 681 row, 0, | |
| 682 QTableWidgetItem( | |
| 683 self.tr("No matches"))) | |
| 684 | |
| 685 # remove the highlight | |
| 686 tc = self.textTextEdit.textCursor() | |
| 687 tc.setPosition(0) | |
| 688 self.textTextEdit.setTextCursor(tc) | |
| 689 | |
| 690 self.resultTable.resizeColumnsToContents() | |
| 691 self.resultTable.resizeRowsToContents() | |
| 692 self.resultTable.verticalHeader().hide() | |
| 693 self.resultTable.horizontalHeader().hide() | |
| 694 else: | |
| 695 E5MessageBox.critical( | |
| 696 self, | |
| 697 self.tr("Communication Error"), | |
| 698 self.tr("""Invalid response received from""" | |
| 699 """ PyQt5 backend.""")) | |
| 700 else: | |
| 701 E5MessageBox.critical( | |
| 702 self, | |
| 703 self.tr("Communication Error"), | |
| 704 self.tr("""Communication with PyQt5""" | |
| 705 """ backend failed.""")) | |
| 706 else: | |
| 707 E5MessageBox.critical( | |
| 708 self, | |
| 709 self.tr("Error"), | |
| 710 self.tr("""A regular expression and a text must""" | |
| 711 """ be given.""")) | |
| 712 | |
| 713 @pyqtSlot() | |
| 714 def on_nextButton_clicked(self): | |
| 715 """ | |
| 716 Private slot to find the next match. | |
| 717 """ | |
| 718 self.on_executeButton_clicked(self.lastMatchEnd) | |
| 719 | |
| 720 @pyqtSlot() | |
| 721 def on_regexpTextEdit_textChanged(self): | |
| 722 """ | |
| 723 Private slot called when the regexp changes. | |
| 724 """ | |
| 725 if self.nextButton: | |
| 726 self.nextButton.setEnabled(False) | |
| 727 | |
| 728 def getCode(self, indLevel, indString): | |
| 729 """ | |
| 730 Public method to get the source code. | |
| 731 | |
| 732 @param indLevel indentation level (int) | |
| 733 @param indString string used for indentation (space or tab) (string) | |
| 734 @return generated code (string) | |
| 735 """ | |
| 736 # calculate the indentation string | |
| 737 i1string = (indLevel + 1) * indString | |
| 738 estring = os.linesep + indLevel * indString | |
| 739 | |
| 740 # now generate the code | |
| 741 reVar = self.variableLineEdit.text() | |
| 742 if not reVar: | |
| 743 reVar = "regexp" | |
| 744 | |
| 745 regexp = self.regexpTextEdit.toPlainText() | |
| 746 | |
| 747 options = [] | |
| 748 if self.caseInsensitiveCheckBox.isChecked(): | |
| 749 options.append("QRegularExpression.CaseInsensitiveOption") | |
| 750 if self.multilineCheckBox.isChecked(): | |
| 751 options.append("QRegularExpression.MultilineOption") | |
| 752 if self.dotallCheckBox.isChecked(): | |
| 753 options.append("QRegularExpression.DotMatchesEverythingOption") | |
| 754 if self.extendedCheckBox.isChecked(): | |
| 755 options.append("QRegularExpression.ExtendedPatternSyntaxOption") | |
| 756 if self.greedinessCheckBox.isChecked(): | |
| 757 options.append("QRegularExpression.InvertedGreedinessOption") | |
| 758 if self.unicodeCheckBox.isChecked(): | |
| 759 options.append("QRegularExpression.UseUnicodePropertiesOption") | |
| 760 if self.captureCheckBox.isChecked(): | |
| 761 options.append("QRegularExpression.DontCaptureOption") | |
| 762 options = " |{0}{1}".format(os.linesep, i1string).join(options) | |
| 763 | |
| 764 code = '{0} = QRegularExpression('.format(reVar) | |
| 765 if options: | |
| 766 code += '{0}{1}r"""{2}""",'.format( | |
| 767 os.linesep, i1string, regexp.replace('"', '\\"')) | |
| 768 code += '{0}{1}{2}'.format(os.linesep, i1string, options) | |
| 769 else: | |
| 770 code += 'r"""{0}"""'.format(regexp.replace('"', '\\"')) | |
| 771 code += '){0}'.format(estring) | |
| 772 return code | |
| 773 | |
| 774 | |
| 775 class QRegularExpressionWizardDialog(QDialog): | |
| 776 """ | |
| 777 Class for the dialog variant. | |
| 778 """ | |
| 779 def __init__(self, parent=None, fromEric=True): | |
| 780 """ | |
| 781 Constructor | |
| 782 | |
| 783 @param parent parent widget (QWidget) | |
| 784 @param fromEric flag indicating a call from within eric6 | |
| 785 """ | |
| 786 super(QRegularExpressionWizardDialog, self).__init__(parent) | |
| 787 self.setModal(fromEric) | |
| 788 self.setSizeGripEnabled(True) | |
| 789 | |
| 790 self.__layout = QVBoxLayout(self) | |
| 791 self.__layout.setContentsMargins(0, 0, 0, 0) | |
| 792 self.setLayout(self.__layout) | |
| 793 | |
| 794 self.cw = QRegularExpressionWizardWidget(self, fromEric) | |
| 795 size = self.cw.size() | |
| 796 self.__layout.addWidget(self.cw) | |
| 797 self.resize(size) | |
| 798 self.setWindowTitle(self.cw.windowTitle()) | |
| 799 | |
| 800 self.cw.buttonBox.accepted.connect(self.accept) | |
| 801 self.cw.buttonBox.rejected.connect(self.reject) | |
| 802 | |
| 803 def getCode(self, indLevel, indString): | |
| 804 """ | |
| 805 Public method to get the source code. | |
| 806 | |
| 807 @param indLevel indentation level (int) | |
| 808 @param indString string used for indentation (space or tab) (string) | |
| 809 @return generated code (string) | |
| 810 """ | |
| 811 return self.cw.getCode(indLevel, indString) | |
| 812 | |
| 813 def accept(self): | |
| 814 """ | |
| 815 Public slot to hide the dialog and set the result code to Accepted. | |
| 816 """ | |
| 817 self.cw.shutdown() | |
| 818 super(QRegularExpressionWizardDialog, self).accept() | |
| 819 | |
| 820 def reject(self): | |
| 821 """ | |
| 822 Public slot to hide the dialog and set the result code to Rejected. | |
| 823 """ | |
| 824 self.cw.shutdown() | |
| 825 super(QRegularExpressionWizardDialog, self).reject() | |
| 826 | |
| 827 | |
| 828 class QRegularExpressionWizardWindow(E5MainWindow): | |
| 829 """ | |
| 830 Main window class for the standalone dialog. | |
| 831 """ | |
| 832 def __init__(self, parent=None): | |
| 833 """ | |
| 834 Constructor | |
| 835 | |
| 836 @param parent reference to the parent widget (QWidget) | |
| 837 """ | |
| 838 super(QRegularExpressionWizardWindow, self).__init__(parent) | |
| 839 self.cw = QRegularExpressionWizardWidget(self, fromEric=False) | |
| 840 size = self.cw.size() | |
| 841 self.setCentralWidget(self.cw) | |
| 842 self.resize(size) | |
| 843 self.setWindowTitle(self.cw.windowTitle()) | |
| 844 | |
| 845 self.setStyle( | |
| 846 Preferences.getUI("Style"), Preferences.getUI("StyleSheet")) | |
| 847 | |
| 848 self.cw.buttonBox.accepted.connect(self.close) | |
| 849 self.cw.buttonBox.rejected.connect(self.close) | |
| 850 | |
| 851 def closeEvent(self, evt): | |
| 852 """ | |
| 853 Protected method handling the close event. | |
| 854 | |
| 855 @param evt close event (QCloseEvent) | |
| 856 """ | |
| 857 self.cw.shutdown() | |
| 858 super(QRegularExpressionWizardWindow, self).closeEvent(evt) |
