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#!/usr/bin/env python
"""PyQt4 port of the tools/regexp example from Qt v4.x"""
import sys
from PyQt4 import QtCore, QtGui
class RegExpDialog(QtGui.QDialog):
MaxCaptures = 6
def __init__(self, parent=None):
QtGui.QDialog.__init__(self, parent)
self.patternComboBox = QtGui.QComboBox()
self.patternComboBox.setEditable(True)
self.patternComboBox.setSizePolicy(QtGui.QSizePolicy.Expanding,
QtGui.QSizePolicy.Preferred)
self.patternLabel = QtGui.QLabel(self.tr("&Pattern:"))
self.patternLabel.setBuddy(self.patternComboBox)
self.escapedPatternLineEdit = QtGui.QLineEdit()
self.escapedPatternLineEdit.setReadOnly(True)
palette = self.escapedPatternLineEdit.palette()
palette.setBrush(QtGui.QPalette.Base,
palette.brush(QtGui.QPalette.Disabled, QtGui.QPalette.Base))
self.escapedPatternLineEdit.setPalette(palette)
self.escapedPatternLabel = QtGui.QLabel(self.tr("&Escaped Pattern:"))
self.escapedPatternLabel.setBuddy(self.escapedPatternLineEdit)
self.textComboBox = QtGui.QComboBox()
self.textComboBox.setEditable(True)
self.textComboBox.setSizePolicy(QtGui.QSizePolicy.Expanding,
QtGui.QSizePolicy.Preferred)
self.textLabel = QtGui.QLabel(self.tr("&Text:"))
self.textLabel.setBuddy(self.textComboBox)
self.caseSensitiveCheckBox = QtGui.QCheckBox(self.tr("Case &Sensitive"))
self.caseSensitiveCheckBox.setChecked(True)
self.minimalCheckBox = QtGui.QCheckBox(self.tr("&Minimal"))
self.wildcardCheckBox = QtGui.QCheckBox(self.tr("&Wildcard"))
self.indexLabel = QtGui.QLabel(self.tr("Index of Match:"))
self.indexEdit = QtGui.QLineEdit()
self.indexEdit.setReadOnly(True)
self.matchedLengthLabel = QtGui.QLabel(self.tr("Matched Length:"))
self.matchedLengthEdit = QtGui.QLineEdit()
self.matchedLengthEdit.setReadOnly(True)
self.captureLabels = []
self.captureEdits = []
for i in range(self.MaxCaptures):
self.captureLabels.append(QtGui.QLabel(self.tr("Capture %1:").arg(i)))
self.captureEdits.append(QtGui.QLineEdit())
self.captureEdits[i].setReadOnly(True)
self.captureLabels[0].setText(self.tr("Match:"))
checkBoxLayout = QtGui.QHBoxLayout()
checkBoxLayout.addWidget(self.caseSensitiveCheckBox)
checkBoxLayout.addWidget(self.minimalCheckBox)
checkBoxLayout.addWidget(self.wildcardCheckBox)
checkBoxLayout.addStretch(1)
mainLayout = QtGui.QGridLayout()
mainLayout.setSizeConstraint(QtGui.QLayout.SetFixedSize)
mainLayout.addWidget(self.patternLabel, 0, 0)
mainLayout.addWidget(self.patternComboBox, 0, 1)
mainLayout.addWidget(self.escapedPatternLabel, 1, 0)
mainLayout.addWidget(self.escapedPatternLineEdit, 1, 1)
mainLayout.addWidget(self.textLabel, 2, 0)
mainLayout.addWidget(self.textComboBox, 2, 1)
mainLayout.addLayout(checkBoxLayout, 3, 0, 1, 2)
mainLayout.addWidget(self.indexLabel, 4, 0)
mainLayout.addWidget(self.indexEdit, 4, 1)
mainLayout.addWidget(self.matchedLengthLabel, 5, 0)
mainLayout.addWidget(self.matchedLengthEdit, 5, 1)
for i in range(self.MaxCaptures):
mainLayout.addWidget(self.captureLabels[i], 6 + i, 0)
mainLayout.addWidget(self.captureEdits[i], 6 + i, 1)
self.setLayout(mainLayout)
self.connect(self.patternComboBox,
QtCore.SIGNAL("editTextChanged(const QString &)"), self.refresh)
self.connect(self.textComboBox,
QtCore.SIGNAL("editTextChanged(const QString &)"), self.refresh)
self.connect(self.caseSensitiveCheckBox,
QtCore.SIGNAL("toggled(bool)"), self.refresh)
self.connect(self.minimalCheckBox,
QtCore.SIGNAL("toggled(bool)"), self.refresh)
self.connect(self.wildcardCheckBox,
QtCore.SIGNAL("toggled(bool)"), self.refresh)
self.patternComboBox.addItem(self.tr("([A-Za-z_])([A-Za-z_0-9]*)"))
self.textComboBox.addItem(self.tr("(10 + delta4)* 32"))
self.setWindowTitle(self.tr("RegExp"))
self.refresh()
def refresh(self):
pattern = self.patternComboBox.currentText()
text = self.textComboBox.currentText()
escaped = self.patternComboBox.currentText()
escaped = escaped.replace("\\", "\\\\")
escaped = "\"" + escaped + "\""
self.escapedPatternLineEdit.setText(escaped)
rx = QtCore.QRegExp(pattern)
cs = QtCore.Qt.CaseInsensitive
if self.caseSensitiveCheckBox.isChecked():
cs = QtCore.Qt.CaseSensitive
rx.setCaseSensitivity(cs)
rx.setMinimal(self.minimalCheckBox.isChecked())
if self.wildcardCheckBox.isChecked():
syntax = QtCore.QRegExp.Wildcard
else:
syntax = QtCore.QRegExp.RegExp
rx.setPatternSyntax(syntax)
palette = self.patternComboBox.palette()
if rx.isValid():
palette.setColor(QtGui.QPalette.Text,
self.textComboBox.palette().color(QtGui.QPalette.Text))
else:
palette.setColor(QtGui.QPalette.Text, QtCore.Qt.red)
self.patternComboBox.setPalette(palette)
self.indexEdit.setText(QtCore.QString.number(rx.indexIn(text)))
self.matchedLengthEdit.setText(
QtCore.QString.number(rx.matchedLength()))
for i in range(self.MaxCaptures):
self.captureLabels[i].setEnabled(i <= rx.numCaptures())
self.captureEdits[i].setEnabled(i <= rx.numCaptures())
self.captureEdits[i].setText(rx.cap(i))
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
dialog = RegExpDialog()
sys.exit(dialog.exec_())
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