|
1 # -*- coding: utf-8 -*- |
|
2 |
|
3 # Copyright (c) 2004 - 2009 Detlev Offenbach <detlev@die-offenbachs.de> |
|
4 # |
|
5 |
|
6 """ |
|
7 Module implementing the QRegExp wizard dialog. |
|
8 """ |
|
9 |
|
10 import sys |
|
11 import os |
|
12 |
|
13 from PyQt4.QtCore import * |
|
14 from PyQt4.QtGui import * |
|
15 |
|
16 from E4Gui.E4Application import e4App |
|
17 |
|
18 from Ui_QRegExpWizardDialog import Ui_QRegExpWizardDialog |
|
19 |
|
20 from QRegExpWizardRepeatDialog import QRegExpWizardRepeatDialog |
|
21 from QRegExpWizardCharactersDialog import QRegExpWizardCharactersDialog |
|
22 |
|
23 import UI.PixmapCache |
|
24 |
|
25 import Utilities |
|
26 |
|
27 class QRegExpWizardWidget(QWidget, Ui_QRegExpWizardDialog): |
|
28 """ |
|
29 Class implementing the QRegExp wizard dialog. |
|
30 """ |
|
31 def __init__(self, parent = None, fromEric = True): |
|
32 """ |
|
33 Constructor |
|
34 |
|
35 @param parent parent widget (QWidget) |
|
36 @param fromEric flag indicating a call from within eric4 |
|
37 """ |
|
38 QWidget.__init__(self,parent) |
|
39 self.setupUi(self) |
|
40 |
|
41 # initialize icons of the tool buttons |
|
42 self.charButton.setIcon(UI.PixmapCache.getIcon("characters.png")) |
|
43 self.anycharButton.setIcon(UI.PixmapCache.getIcon("anychar.png")) |
|
44 self.repeatButton.setIcon(UI.PixmapCache.getIcon("repeat.png")) |
|
45 self.nonGroupButton.setIcon(UI.PixmapCache.getIcon("nongroup.png")) |
|
46 self.groupButton.setIcon(UI.PixmapCache.getIcon("group.png")) |
|
47 self.altnButton.setIcon(UI.PixmapCache.getIcon("altn.png")) |
|
48 self.beglineButton.setIcon(UI.PixmapCache.getIcon("begline.png")) |
|
49 self.endlineButton.setIcon(UI.PixmapCache.getIcon("endline.png")) |
|
50 self.wordboundButton.setIcon(UI.PixmapCache.getIcon("wordboundary.png")) |
|
51 self.nonwordboundButton.setIcon(UI.PixmapCache.getIcon("nonwordboundary.png")) |
|
52 self.poslookaheadButton.setIcon(UI.PixmapCache.getIcon("poslookahead.png")) |
|
53 self.neglookaheadButton.setIcon(UI.PixmapCache.getIcon("neglookahead.png")) |
|
54 self.undoButton.setIcon(UI.PixmapCache.getIcon("editUndo.png")) |
|
55 self.redoButton.setIcon(UI.PixmapCache.getIcon("editRedo.png")) |
|
56 |
|
57 self.saveButton = \ |
|
58 self.buttonBox.addButton(self.trUtf8("Save"), QDialogButtonBox.ActionRole) |
|
59 self.saveButton.setToolTip(self.trUtf8("Save the regular expression to a file")) |
|
60 self.loadButton = \ |
|
61 self.buttonBox.addButton(self.trUtf8("Load"), QDialogButtonBox.ActionRole) |
|
62 self.loadButton.setToolTip(self.trUtf8("Load a regular expression from a file")) |
|
63 self.validateButton = \ |
|
64 self.buttonBox.addButton(self.trUtf8("Validate"), QDialogButtonBox.ActionRole) |
|
65 self.validateButton.setToolTip(self.trUtf8("Validate the regular expression")) |
|
66 self.executeButton = \ |
|
67 self.buttonBox.addButton(self.trUtf8("Execute"), QDialogButtonBox.ActionRole) |
|
68 self.executeButton.setToolTip(self.trUtf8("Execute the regular expression")) |
|
69 self.nextButton = \ |
|
70 self.buttonBox.addButton(self.trUtf8("Next match"), |
|
71 QDialogButtonBox.ActionRole) |
|
72 self.nextButton.setToolTip(\ |
|
73 self.trUtf8("Show the next match of the regular expression")) |
|
74 self.nextButton.setEnabled(False) |
|
75 |
|
76 if fromEric: |
|
77 self.buttonBox.button(QDialogButtonBox.Close).hide() |
|
78 self.copyButton = None |
|
79 uitype = e4App().getObject("Project").getProjectType() |
|
80 else: |
|
81 self.copyButton = \ |
|
82 self.buttonBox.addButton(self.trUtf8("Copy"), QDialogButtonBox.ActionRole) |
|
83 self.copyButton.setToolTip(\ |
|
84 self.trUtf8("Copy the regular expression to the clipboard")) |
|
85 self.buttonBox.button(QDialogButtonBox.Ok).hide() |
|
86 self.buttonBox.button(QDialogButtonBox.Cancel).hide() |
|
87 self.variableLabel.hide() |
|
88 self.variableLineEdit.hide() |
|
89 self.variableLine.hide() |
|
90 self.regexpLineEdit.setFocus() |
|
91 |
|
92 def __insertString(self, s, steps=0): |
|
93 """ |
|
94 Private method to insert a string into line edit and move cursor. |
|
95 |
|
96 @param s string to be inserted into the regexp line edit |
|
97 (string) |
|
98 @param steps number of characters to move the cursor (integer). |
|
99 Negative steps moves cursor back, positives forward. |
|
100 """ |
|
101 self.regexpLineEdit.insert(s) |
|
102 self.regexpLineEdit.cursorForward(False, steps) |
|
103 |
|
104 @pyqtSlot() |
|
105 def on_anycharButton_clicked(self): |
|
106 """ |
|
107 Private slot to handle the any character toolbutton. |
|
108 """ |
|
109 self.__insertString(".") |
|
110 |
|
111 @pyqtSlot() |
|
112 def on_nonGroupButton_clicked(self): |
|
113 """ |
|
114 Private slot to handle the non group toolbutton. |
|
115 """ |
|
116 self.__insertString("(?:)", -1) |
|
117 |
|
118 @pyqtSlot() |
|
119 def on_groupButton_clicked(self): |
|
120 """ |
|
121 Private slot to handle the group toolbutton. |
|
122 """ |
|
123 self.__insertString("()", -1) |
|
124 |
|
125 @pyqtSlot() |
|
126 def on_altnButton_clicked(self): |
|
127 """ |
|
128 Private slot to handle the alternatives toolbutton. |
|
129 """ |
|
130 self.__insertString("(|)", -2) |
|
131 |
|
132 @pyqtSlot() |
|
133 def on_beglineButton_clicked(self): |
|
134 """ |
|
135 Private slot to handle the begin line toolbutton. |
|
136 """ |
|
137 self.__insertString("^") |
|
138 |
|
139 @pyqtSlot() |
|
140 def on_endlineButton_clicked(self): |
|
141 """ |
|
142 Private slot to handle the end line toolbutton. |
|
143 """ |
|
144 self.__insertString("$") |
|
145 |
|
146 @pyqtSlot() |
|
147 def on_wordboundButton_clicked(self): |
|
148 """ |
|
149 Private slot to handle the word boundary toolbutton. |
|
150 """ |
|
151 self.__insertString("\\b") |
|
152 |
|
153 @pyqtSlot() |
|
154 def on_nonwordboundButton_clicked(self): |
|
155 """ |
|
156 Private slot to handle the non word boundary toolbutton. |
|
157 """ |
|
158 self.__insertString("\\B") |
|
159 |
|
160 @pyqtSlot() |
|
161 def on_poslookaheadButton_clicked(self): |
|
162 """ |
|
163 Private slot to handle the positive lookahead toolbutton. |
|
164 """ |
|
165 self.__insertString("(?=)", -1) |
|
166 |
|
167 @pyqtSlot() |
|
168 def on_neglookaheadButton_clicked(self): |
|
169 """ |
|
170 Private slot to handle the negative lookahead toolbutton. |
|
171 """ |
|
172 self.__insertString("(?!)", -1) |
|
173 |
|
174 @pyqtSlot() |
|
175 def on_repeatButton_clicked(self): |
|
176 """ |
|
177 Private slot to handle the repeat toolbutton. |
|
178 """ |
|
179 dlg = QRegExpWizardRepeatDialog(self) |
|
180 if dlg.exec_() == QDialog.Accepted: |
|
181 self.__insertString(dlg.getRepeat()) |
|
182 |
|
183 @pyqtSlot() |
|
184 def on_charButton_clicked(self): |
|
185 """ |
|
186 Private slot to handle the characters toolbutton. |
|
187 """ |
|
188 dlg = QRegExpWizardCharactersDialog(self) |
|
189 if dlg.exec_() == QDialog.Accepted: |
|
190 self.__insertString(dlg.getCharacters()) |
|
191 |
|
192 def on_buttonBox_clicked(self, button): |
|
193 """ |
|
194 Private slot called by a button of the button box clicked. |
|
195 |
|
196 @param button button that was clicked (QAbstractButton) |
|
197 """ |
|
198 if button == self.validateButton: |
|
199 self.on_validateButton_clicked() |
|
200 elif button == self.executeButton: |
|
201 self.on_executeButton_clicked() |
|
202 elif button == self.saveButton: |
|
203 self.on_saveButton_clicked() |
|
204 elif button == self.loadButton: |
|
205 self.on_loadButton_clicked() |
|
206 elif button == self.nextButton: |
|
207 self.on_nextButton_clicked() |
|
208 elif self.copyButton and button == self.copyButton: |
|
209 self.on_copyButton_clicked() |
|
210 |
|
211 @pyqtSlot() |
|
212 def on_saveButton_clicked(self): |
|
213 """ |
|
214 Private slot to save the regexp to a file. |
|
215 """ |
|
216 fname, selectedFilter = QFileDialog.getSaveFileNameAndFilter(\ |
|
217 self, |
|
218 self.trUtf8("Save regular expression"), |
|
219 "", |
|
220 self.trUtf8("RegExp Files (*.rx);;All Files (*)"), |
|
221 None, |
|
222 QFileDialog.Options(QFileDialog.DontConfirmOverwrite)) |
|
223 if fname: |
|
224 ext = QFileInfo(fname).suffix() |
|
225 if not ext: |
|
226 ex = selectedFilter.split("(*")[1].split(")")[0] |
|
227 if ex: |
|
228 fname += ex |
|
229 if QFileInfo(fname).exists(): |
|
230 res = QMessageBox.warning(self, |
|
231 self.trUtf8("Save regular expression"), |
|
232 self.trUtf8("<p>The file <b>{0}</b> already exists.</p>") |
|
233 .format(fname), |
|
234 QMessageBox.StandardButtons(\ |
|
235 QMessageBox.Abort | \ |
|
236 QMessageBox.Save), |
|
237 QMessageBox.Abort) |
|
238 if res == QMessageBox.Abort or res == QMessageBox.Cancel: |
|
239 return |
|
240 |
|
241 try: |
|
242 f=open(Utilities.toNativeSeparators(fname), "wb") |
|
243 f.write(self.regexpLineEdit.text()) |
|
244 f.close() |
|
245 except IOError, err: |
|
246 QMessageBox.information(self, |
|
247 self.trUtf8("Save regular expression"), |
|
248 self.trUtf8("""<p>The regular expression could not be saved.</p>""" |
|
249 """<p>Reason: {0}</p>""").format(unicode(err))) |
|
250 |
|
251 @pyqtSlot() |
|
252 def on_loadButton_clicked(self): |
|
253 """ |
|
254 Private slot to load a regexp from a file. |
|
255 """ |
|
256 fname = QFileDialog.getOpenFileName(\ |
|
257 self, |
|
258 self.trUtf8("Load regular expression"), |
|
259 "", |
|
260 self.trUtf8("RegExp Files (*.rx);;All Files (*)")) |
|
261 if fname: |
|
262 try: |
|
263 f=open(Utilities.toNativeSeparators(fname), "rb") |
|
264 regexp = f.read() |
|
265 f.close() |
|
266 self.regexpLineEdit.setText(regexp) |
|
267 except IOError, err: |
|
268 QMessageBox.information(self, |
|
269 self.trUtf8("Save regular expression"), |
|
270 self.trUtf8("""<p>The regular expression could not be saved.</p>""" |
|
271 """<p>Reason: {0}</p>""").format(unicode(err))) |
|
272 |
|
273 @pyqtSlot() |
|
274 def on_copyButton_clicked(self): |
|
275 """ |
|
276 Private slot to copy the regexp string into the clipboard. |
|
277 |
|
278 This slot is only available, if not called from within eric4. |
|
279 """ |
|
280 escaped = self.regexpLineEdit.text() |
|
281 if escaped: |
|
282 escaped = escaped.replace("\\", "\\\\") |
|
283 cb = QApplication.clipboard() |
|
284 cb.setText(escaped, QClipboard.Clipboard) |
|
285 if cb.supportsSelection(): |
|
286 cb.setText(escaped, QClipboard.Selection) |
|
287 |
|
288 @pyqtSlot() |
|
289 def on_validateButton_clicked(self): |
|
290 """ |
|
291 Private slot to validate the entered regexp. |
|
292 """ |
|
293 regex = self.regexpLineEdit.text() |
|
294 if regex: |
|
295 re = QRegExp(regex) |
|
296 if self.caseSensitiveCheckBox.isChecked(): |
|
297 re.setCaseSensitivity(Qt.CaseSensitive) |
|
298 else: |
|
299 re.setCaseSensitivity(Qt.CaseInsensitive) |
|
300 re.setMinimal(self.minimalCheckBox.isChecked()) |
|
301 if self.wildcardCheckBox.isChecked(): |
|
302 re.setPatternSyntax(QRegExp.Wildcard) |
|
303 else: |
|
304 re.setPatternSyntax(QRegExp.RegExp) |
|
305 if re.isValid(): |
|
306 QMessageBox.information(None, |
|
307 self.trUtf8(""), |
|
308 self.trUtf8("""The regular expression is valid.""")) |
|
309 else: |
|
310 QMessageBox.critical(None, |
|
311 self.trUtf8("Error"), |
|
312 self.trUtf8("""Invalid regular expression: {0}""") |
|
313 .format(re.errorString())) |
|
314 return |
|
315 else: |
|
316 QMessageBox.critical(None, |
|
317 self.trUtf8("Error"), |
|
318 self.trUtf8("""A regular expression must be given.""")) |
|
319 |
|
320 @pyqtSlot() |
|
321 def on_executeButton_clicked(self, startpos = 0): |
|
322 """ |
|
323 Private slot to execute the entered regexp on the test text. |
|
324 |
|
325 This slot will execute the entered regexp on the entered test |
|
326 data and will display the result in the table part of the dialog. |
|
327 |
|
328 @param startpos starting position for the regexp matching |
|
329 """ |
|
330 regex = self.regexpLineEdit.text() |
|
331 text = self.textTextEdit.toPlainText() |
|
332 if regex and text: |
|
333 re = QRegExp(regex) |
|
334 if self.caseSensitiveCheckBox.isChecked(): |
|
335 re.setCaseSensitivity(Qt.CaseSensitive) |
|
336 else: |
|
337 re.setCaseSensitivity(Qt.CaseInsensitive) |
|
338 re.setMinimal(self.minimalCheckBox.isChecked()) |
|
339 wildcard = self.wildcardCheckBox.isChecked() |
|
340 if wildcard: |
|
341 re.setPatternSyntax(QRegExp.Wildcard) |
|
342 else: |
|
343 re.setPatternSyntax(QRegExp.RegExp) |
|
344 if not re.isValid(): |
|
345 QMessageBox.critical(None, |
|
346 self.trUtf8("Error"), |
|
347 self.trUtf8("""Invalid regular expression: {0}""") |
|
348 .format(re.errorString())) |
|
349 return |
|
350 offset = re.indexIn(text, startpos) |
|
351 captures = re.numCaptures() |
|
352 row = 0 |
|
353 OFFSET = 5 |
|
354 |
|
355 self.resultTable.setColumnCount(0) |
|
356 self.resultTable.setColumnCount(3) |
|
357 self.resultTable.setRowCount(0) |
|
358 self.resultTable.setRowCount(OFFSET) |
|
359 self.resultTable.setItem(row, 0, QTableWidgetItem(self.trUtf8("Regexp"))) |
|
360 self.resultTable.setItem(row, 1, QTableWidgetItem(regex)) |
|
361 |
|
362 if offset != -1: |
|
363 self.lastMatchEnd = offset + re.matchedLength() |
|
364 self.nextButton.setEnabled(True) |
|
365 row += 1 |
|
366 self.resultTable.setItem(row, 0, QTableWidgetItem(self.trUtf8("Offset"))) |
|
367 self.resultTable.setItem(row, 1, QTableWidgetItem("%d" % offset)) |
|
368 |
|
369 if not wildcard: |
|
370 row += 1 |
|
371 self.resultTable.setItem(row, 0, |
|
372 QTableWidgetItem(self.trUtf8("Captures"))) |
|
373 self.resultTable.setItem(row, 1, |
|
374 QTableWidgetItem("%d" % captures)) |
|
375 row += 1 |
|
376 self.resultTable.setItem(row, 1, |
|
377 QTableWidgetItem(self.trUtf8("Text"))) |
|
378 self.resultTable.setItem(row, 2, |
|
379 QTableWidgetItem(self.trUtf8("Characters"))) |
|
380 |
|
381 row += 1 |
|
382 self.resultTable.setItem(row, 0, |
|
383 QTableWidgetItem(self.trUtf8("Match"))) |
|
384 self.resultTable.setItem(row, 1, |
|
385 QTableWidgetItem(re.cap(0))) |
|
386 self.resultTable.setItem(row, 2, |
|
387 QTableWidgetItem("%d" % re.matchedLength())) |
|
388 |
|
389 if not wildcard: |
|
390 for i in range(1, captures + 1): |
|
391 if len(re.cap(i)) > 0: |
|
392 row += 1 |
|
393 self.resultTable.insertRow(row) |
|
394 self.resultTable.setItem(row, 0, |
|
395 QTableWidgetItem(self.trUtf8("Capture #{0}").format(i))) |
|
396 self.resultTable.setItem(row, 1, |
|
397 QTableWidgetItem(re.cap(i))) |
|
398 self.resultTable.setItem(row, 2, |
|
399 QTableWidgetItem("%d" % len(re.cap(i)))) |
|
400 else: |
|
401 self.resultTable.setRowCount(3) |
|
402 |
|
403 # highlight the matched text |
|
404 tc = self.textTextEdit.textCursor() |
|
405 tc.setPosition(offset) |
|
406 tc.setPosition(self.lastMatchEnd, QTextCursor.KeepAnchor) |
|
407 self.textTextEdit.setTextCursor(tc) |
|
408 else: |
|
409 self.nextButton.setEnabled(False) |
|
410 self.resultTable.setRowCount(2) |
|
411 row += 1 |
|
412 if startpos > 0: |
|
413 self.resultTable.setItem(row, 0, |
|
414 QTableWidgetItem(self.trUtf8("No more matches"))) |
|
415 else: |
|
416 self.resultTable.setItem(row, 0, |
|
417 QTableWidgetItem(self.trUtf8("No matches"))) |
|
418 |
|
419 # remove the highlight |
|
420 tc = self.textTextEdit.textCursor() |
|
421 tc.setPosition(0) |
|
422 self.textTextEdit.setTextCursor(tc) |
|
423 |
|
424 self.resultTable.resizeColumnsToContents() |
|
425 self.resultTable.resizeRowsToContents() |
|
426 self.resultTable.verticalHeader().hide() |
|
427 self.resultTable.horizontalHeader().hide() |
|
428 else: |
|
429 QMessageBox.critical(None, |
|
430 self.trUtf8("Error"), |
|
431 self.trUtf8("""A regular expression and a text must be given.""")) |
|
432 |
|
433 @pyqtSlot() |
|
434 def on_nextButton_clicked(self): |
|
435 """ |
|
436 Private slot to find the next match. |
|
437 """ |
|
438 self.on_executeButton_clicked(self.lastMatchEnd) |
|
439 |
|
440 def on_regexpLineEdit_textChanged(self, txt): |
|
441 """ |
|
442 Private slot called when the regexp changes. |
|
443 |
|
444 @param txt the new text of the line edit (string) |
|
445 """ |
|
446 self.nextButton.setEnabled(False) |
|
447 |
|
448 def getCode(self, indLevel, indString): |
|
449 """ |
|
450 Public method to get the source code. |
|
451 |
|
452 @param indLevel indentation level (int) |
|
453 @param indString string used for indentation (space or tab) (string) |
|
454 @return generated code (string) |
|
455 """ |
|
456 # calculate the indentation string |
|
457 istring = indLevel * indString |
|
458 |
|
459 # now generate the code |
|
460 reVar = self.variableLineEdit.text() |
|
461 if not reVar: |
|
462 reVar = "regexp" |
|
463 |
|
464 regexp = self.regexpLineEdit.text() |
|
465 |
|
466 code = '%s = QRegExp(r"""%s""")%s' % \ |
|
467 (reVar, regexp.replace('"', '\\"'), os.linesep) |
|
468 if not self.caseSensitiveCheckBox.isChecked(): |
|
469 code += '%s%s.setCaseSensitivity(Qt.CaseInsensitive)%s' % \ |
|
470 (istring, reVar, os.linesep) |
|
471 if self.minimalCheckBox.isChecked(): |
|
472 code += '%s%s.setMinimal(1)%s' % (istring, reVar, os.linesep) |
|
473 if self.wildcardCheckBox.isChecked(): |
|
474 code += '%s%s.setPatternSyntax(QRegExp.Wildcard)%s' % \ |
|
475 (istring, reVar, os.linesep) |
|
476 return code |
|
477 |
|
478 class QRegExpWizardDialog(QDialog): |
|
479 """ |
|
480 Class for the dialog variant. |
|
481 """ |
|
482 def __init__(self, parent = None, fromEric = True): |
|
483 """ |
|
484 Constructor |
|
485 |
|
486 @param parent parent widget (QWidget) |
|
487 @param fromEric flag indicating a call from within eric4 |
|
488 """ |
|
489 QDialog.__init__(self, parent) |
|
490 self.setModal(fromEric) |
|
491 self.setSizeGripEnabled(True) |
|
492 |
|
493 self.__layout = QVBoxLayout(self) |
|
494 self.__layout.setMargin(0) |
|
495 self.setLayout(self.__layout) |
|
496 |
|
497 self.cw = QRegExpWizardWidget(self, fromEric) |
|
498 size = self.cw.size() |
|
499 self.__layout.addWidget(self.cw) |
|
500 self.resize(size) |
|
501 |
|
502 self.connect(self.cw.buttonBox, SIGNAL("accepted()"), self.accept) |
|
503 self.connect(self.cw.buttonBox, SIGNAL("rejected()"), self.reject) |
|
504 |
|
505 def getCode(self, indLevel, indString): |
|
506 """ |
|
507 Public method to get the source code. |
|
508 |
|
509 @param indLevel indentation level (int) |
|
510 @param indString string used for indentation (space or tab) (string) |
|
511 @return generated code (string) |
|
512 """ |
|
513 return self.cw.getCode(indLevel, indString) |
|
514 |
|
515 class QRegExpWizardWindow(QMainWindow): |
|
516 """ |
|
517 Main window class for the standalone dialog. |
|
518 """ |
|
519 def __init__(self, parent = None): |
|
520 """ |
|
521 Constructor |
|
522 |
|
523 @param parent reference to the parent widget (QWidget) |
|
524 """ |
|
525 QMainWindow.__init__(self, parent) |
|
526 self.cw = QRegExpWizardWidget(self, fromEric = False) |
|
527 size = self.cw.size() |
|
528 self.setCentralWidget(self.cw) |
|
529 self.resize(size) |
|
530 |
|
531 self.connect(self.cw.buttonBox, SIGNAL("accepted()"), self.close) |
|
532 self.connect(self.cw.buttonBox, SIGNAL("rejected()"), self.close) |