[PQ] Allow to provide a default unit for parsing, e.g. "0" -> "0ft"

src/blackmisc/pq/physicalquantity.cpp

@@ -21,6 +21,7 @@
 #include "blackmisc/pq/acceleration.h"
 #include "blackmisc/propertyindexvariantmap.h"
 #include "blackmisc/comparefunctions.h"
+#include "blackmisc/stringutils.h"
 #include "blackmisc/dictionary.h"
 #include "blackmisc/variant.h"
 #include "blackmisc/verify.h"
@@ -419,7 +420,7 @@ namespace BlackMisc
             // there is no double qHash
             // also unit and rounding has to be considered
             hashs << qHash(this->valueRoundedWithUnit(MU::defaultUnit()));
-            return BlackMisc::calculateHash(hashs, "PQ");
+            return calculateHash(hashs, "PQ");
         }
 
         template <class MU, class PQ>
@@ -449,6 +450,20 @@ namespace BlackMisc
             *this = CPqString::parse<PQ>(value, mode);
         }
 
+        template<class MU, class PQ>
+        void CPhysicalQuantity<MU, PQ>::parseFromString(const QString &value, CPqString::SeparatorMode mode, const MU &defaultUnitIfMissing)
+        {
+            if (is09OnlyString(value))
+            {
+                const QString v = value + defaultUnitIfMissing.getName();
+                this->parseFromString(v, mode);
+            }
+            else
+            {
+                this->parseFromString(value, mode);
+            }
+        }
+
         template <class MU, class PQ>
         void CPhysicalQuantity<MU, PQ>::parseFromString(const QString &value)
         {

src/blackmisc/pq/physicalquantity.h

@@ -47,7 +47,7 @@ namespace BlackMisc
          */
         template <class MU, class PQ> class CPhysicalQuantity :
             public Mixin::DBusOperators<CPhysicalQuantity<MU, PQ>>,
-            public Mixin::DataStreamOperators<CPhysicalQuantity<MU, PQ>>,
+                    public Mixin::DataStreamOperators<CPhysicalQuantity<MU, PQ>>,
                     public Mixin::JsonOperators<CPhysicalQuantity<MU, PQ>>,
                     public Mixin::Index<PQ>,
                     public Mixin::MetaType<PQ>,
@@ -255,11 +255,14 @@ namespace BlackMisc
             //! \copydoc BlackMisc::Mixin::String::toQString
             QString convertToQString(bool i18n = false) const;
 
+            //! Parse value from string
+            void parseFromString(const QString &value);
+
             //! Parse to string, with specified separator
             void parseFromString(const QString &value, CPqString::SeparatorMode mode);
 
-            //! Parse value from string
+            //! Parse to string, with specified separator
-            void parseFromString(const QString &value);
+            void parseFromString(const QString &value, CPqString::SeparatorMode mode, const MU &defaultUnitIfMissing);
 
             //! Compare with other PQ
             int compare(const PQ &other) const { return compareImpl(*this->derived(), other); }