Enhancement - Att::type

- Implemented Att::type to discern attribute types to assist with
  type-specific modifier evaluation.
- Fixed bug that required attributes to have specified values, whereas
  stating "name:" means no value for name.

src/Att.cpp

@@ -392,6 +392,27 @@ bool Att::validMod (const std::string& mod)
   return false;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+// The type of an attribute is useful for modifier evaluation.
+std::string type (const std::string& name)
+{
+  if (name == "due" ||
+      name == "until" ||
+      name == "start" ||
+      name == "entry" ||
+      name == "end")
+    return "date";
+
+  else if (name == "recur")
+    return "duration";
+
+  else if (name == "limit")
+    return "number";
+
+  else
+    return "text";
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 //
 // start --> name --> . --> mod --> : --> " --> value --> " --> end
@@ -439,8 +460,6 @@ void Att::parse (Nibbler& n)
       {
         decode (mValue);
       }
-      else
-        throw std::string ("Missing attribute value"); // TODO i18n
     }
     else
       throw std::string ("Missing : after attribute name"); // TODO i18n

src/Att.h

@@ -49,6 +49,7 @@ public:
   static bool validNameValue (const std::string&, const std::string&, const std::string&);
   static bool validNameValue (std::string&, std::string&, std::string&);
   static bool validMod (const std::string&);
+  static std::string type (const std::string&);
   void parse (const std::string&);
   void parse (Nibbler&);
   bool match (const Att&) const;

src/Context.cpp

@@ -494,7 +494,6 @@ void Context::constructFilter ()
 {
   foreach (att, task)
   {
-
     // TODO this doesn't work.
     if (att->first == "description")
     {
@@ -503,7 +502,7 @@ void Context::constructFilter ()
       foreach (word, words)
       {
         filter.push_back (Att ("description", "has", *word));
-        std::cout << "Context::constructFilter " << att->first << "=" << att->second.value () << std::endl;
+        std::cout << "Context::constructFilter " << att->first << "=" << *word << std::endl;
       }
     }