String utility function for balanced quotes

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

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;
             }