Fix deprecated QRegExp

Use QRegularExpression instead.

https://doc.qt.io/qt-5/qregularexpression.html#notes-for-qregexp-users

This function was introduced in Qt 5

sources/qetregexpvalidator.cpp

@@ -1,27 +1,30 @@
 /*
 	Copyright 2006-2020 The QElectroTech Team
 	This file is part of QElectroTech.
-	
+
 	QElectroTech is free software: you can redistribute it and/or modify
 	it under the terms of the GNU General Public License as published by
 	the Free Software Foundation, either version 2 of the License, or
 	(at your option) any later version.
-	
+
 	QElectroTech is distributed in the hope that it will be useful,
 	but WITHOUT ANY WARRANTY; without even the implied warranty of
 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 	GNU General Public License for more details.
-	
+
 	You should have received a copy of the GNU General Public License
 	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "qetregexpvalidator.h"
+#include <QRegularExpression>
 
 /**
 	Constructeur
 	@param parent QObject parent
 */
-QETRegExpValidator::QETRegExpValidator(QObject *parent) : QRegExpValidator(parent) {
+QETRegExpValidator::QETRegExpValidator(QObject *parent)
+	: QRegularExpressionValidator(parent)
+{
 }
 
 /**
@@ -29,7 +32,10 @@ QETRegExpValidator::QETRegExpValidator(QObject *parent) : QRegExpValidator(paren
 	@param regexp Expression reguliere a valider
 	@param parent QObject parent
 */
-QETRegExpValidator::QETRegExpValidator(const QRegExp &regexp, QObject *parent) : QRegExpValidator(regexp, parent) {
+QETRegExpValidator::QETRegExpValidator(
+		const QRegularExpression &regexp, QObject *parent) :
+	QRegularExpressionValidator(regexp, parent)
+{
 }
 
 /**
@@ -40,13 +46,15 @@ QETRegExpValidator::~QETRegExpValidator()
 }
 
 /**
-	@see QRegExpValidator::validate
+	@see QRegularExpressionValidator::validate
 	@see validationFailed()
 	Emet le signal validationFailed si la validation echoue
 */
 QValidator::State QETRegExpValidator::validate(QString &input, int &pos) const
 {
-	QValidator::State result = QRegExpValidator::validate(input, pos);
-	if (result == QValidator::Invalid) emit(validationFailed());
+	QValidator::State result = QRegularExpressionValidator::validate(
+				input, pos);
+	if (result == QValidator::Invalid)
+		emit(validationFailed());
 	return(result);
 }