From 0a7bf28e7e8606648f56b86675d828face6ef9c7 Mon Sep 17 00:00:00 2001
From: Marco Busemann <marco.busemann@treesoft.de>
Date: Fri, 4 Oct 2019 08:57:29 +0200
Subject: [PATCH] Use QRegExp for Qt < 5

---
 QXlsx/header/xlsxworksheet_p.h     |  8 ++++++++
 QXlsx/source/xlsxcellreference.cpp | 16 ++++++++++++++++
 QXlsx/source/xlsxutility.cpp       | 14 ++++++++++++++
 QXlsx/source/xlsxworksheet.cpp     |  1 -
 4 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/QXlsx/header/xlsxworksheet_p.h b/QXlsx/header/xlsxworksheet_p.h
index a1a88a3b..5160f1f3 100644
--- a/QXlsx/header/xlsxworksheet_p.h
+++ b/QXlsx/header/xlsxworksheet_p.h
@@ -42,7 +42,11 @@
 #include <QVector>
 #include <QImage>
 #include <QSharedPointer>
+#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
 #include <QRegularExpression>
+#else
+#include <QRegExp>
+#endif
 
 #include "xlsxworksheet.h"
 #include "xlsxabstractsheet_p.h"
@@ -277,7 +281,11 @@ class WorksheetPrivate : public AbstractSheetPrivate
     bool showOutlineSymbols;
     bool showWhiteSpace;
 
+#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
     QRegularExpression urlPattern;
+#else
+    QRegExp urlPattern;
+#endif
 
 private:
 
diff --git a/QXlsx/source/xlsxcellreference.cpp b/QXlsx/source/xlsxcellreference.cpp
index e7cf5da9..86301d06 100644
--- a/QXlsx/source/xlsxcellreference.cpp
+++ b/QXlsx/source/xlsxcellreference.cpp
@@ -25,7 +25,12 @@
 #include "xlsxcellreference.h"
 #include <QStringList>
 #include <QMap>
+
+#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
 #include <QRegularExpression>
+#else
+#include <QRegExp>
+#endif
 
 QT_BEGIN_NAMESPACE_XLSX
 
@@ -118,6 +123,7 @@ CellReference::CellReference(const char *cell)
 
 void CellReference::init(const QString &cell_str)
 {
+#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
     static QRegularExpression re(QStringLiteral("^\\$?([A-Z]{1,3})\\$?(\\d+)$"));
     QRegularExpressionMatch match = re.match(cell_str);
     if (match.hasMatch()) {
@@ -126,6 +132,16 @@ void CellReference::init(const QString &cell_str)
         _row = row_str.toInt();
         _column = col_from_name(col_str);
     }
+#else
+    QRegExp re(QLatin1String("^\\$?([A-Z]{1,3})\\$?(\\d+)$"));
+    if (re.indexIn(cell_str) != -1)
+    {
+       const QString col_str = re.cap(1);
+       const QString row_str = re.cap(2);
+       _row = row_str.toInt();
+       _column = col_from_name(col_str);
+    }
+#endif
 }
 
 /*!
diff --git a/QXlsx/source/xlsxutility.cpp b/QXlsx/source/xlsxutility.cpp
index 3745c543..02d1a46f 100644
--- a/QXlsx/source/xlsxutility.cpp
+++ b/QXlsx/source/xlsxutility.cpp
@@ -27,7 +27,11 @@
 
 #include <QString>
 #include <QPoint>
+#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
 #include <QRegularExpression>
+#else
+#include <QRegExp>
+#endif
 #include <QMap>
 #include <QStringList>
 #include <QColor>
@@ -166,8 +170,13 @@ QString createSafeSheetName(const QString &nameProposal)
         ret = unescapeSheetName(ret);
 
     //Replace invalid chars with space.
+#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
     if (nameProposal.contains(QRegularExpression(QStringLiteral("[/\\\\?*\\][:]"))))
         ret.replace(QRegularExpression(QStringLiteral("[/\\\\?*\\][:]")), QStringLiteral(" "));
+#else
+    if (nameProposal.contains(QRegExp(QLatin1String("[/\\\\?*\\][:]"))))
+        ret.replace(QRegExp(QLatin1String("[/\\\\?*\\][:]")), QLatin1String(" "));
+#endif
     if (ret.startsWith(QLatin1Char('\'')))
         ret[0] = QLatin1Char(' ');
     if (ret.endsWith(QLatin1Char('\'')))
@@ -187,8 +196,13 @@ QString escapeSheetName(const QString &sheetName)
     Q_ASSERT(!sheetName.startsWith(QLatin1Char('\'')) && !sheetName.endsWith(QLatin1Char('\'')));
 
     //These is no need to escape
+#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
     if (!sheetName.contains(QRegularExpression(QStringLiteral("[ +\\-,%^=<>'&]"))))
         return sheetName;
+#else
+    if (!sheetName.contains(QRegExp(QLatin1String("[ +\\-,%^=<>'&]"))))
+        return sheetName;
+#endif
 
     //OK, escape is needed.
     QString name = sheetName;
diff --git a/QXlsx/source/xlsxworksheet.cpp b/QXlsx/source/xlsxworksheet.cpp
index c3308da9..09680ea6 100644
--- a/QXlsx/source/xlsxworksheet.cpp
+++ b/QXlsx/source/xlsxworksheet.cpp
@@ -8,7 +8,6 @@
 #include <QPoint>
 #include <QFile>
 #include <QUrl>
-#include <QRegularExpression>
 #include <QDebug>
 #include <QBuffer>
 #include <QXmlStreamWriter>