From 1238357749e9fec67210c4f0a9985df5a6bafce3 Mon Sep 17 00:00:00 2001
From: Klaus Basan <klaus.basan@klausbasan.de>
Date: Thu, 30 Jan 2020 12:57:32 +0100
Subject: [PATCH] String utility function for balanced quotes

---
 src/blackmisc/stringutils.cpp | 7 +++++++
 src/blackmisc/stringutils.h   | 5 ++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/blackmisc/stringutils.cpp b/src/blackmisc/stringutils.cpp
index f6028b4b6..33a490231 100644
--- a/src/blackmisc/stringutils.cpp
+++ b/src/blackmisc/stringutils.cpp
@@ -484,6 +484,13 @@ namespace BlackMisc
         return false;
     }
 
+    bool hasBalancedQuotes(const QString &in, char quote)
+    {
+        if (in.isEmpty()) { return true; }
+        const int c = in.count(quote);
+        return (c % 2) == 0;
+    }
+
 } // ns
 
 //! \endcond
diff --git a/src/blackmisc/stringutils.h b/src/blackmisc/stringutils.h
index c82847662..a5e44e419 100644
--- a/src/blackmisc/stringutils.h
+++ b/src/blackmisc/stringutils.h
@@ -208,6 +208,9 @@ namespace BlackMisc
     //! Return string in quotes
     BLACKMISC_EXPORT QString inQuotes(const QString &in, bool ignoreEmpty = false);
 
+    //! Has balanced quotes
+    BLACKMISC_EXPORT bool hasBalancedQuotes(const QString &in, char quote = '"');
+
     //! Remove surrounding apostrophes 'foo' -> foo
     BLACKMISC_EXPORT QString removeSurroundingApostrophes(const QString &in);
 
@@ -328,7 +331,7 @@ namespace BlackMisc
             //! Operator << when there is no debug stream
             friend QNoDebug operator<<(QNoDebug nodebug, const Derived &obj)
             {
-                Q_UNUSED(obj);
+                Q_UNUSED(obj)
                 return nodebug;
             }