Enhancement - history report

- Implemented history report.
- Improved (not to the point of them working) filters.
- Improved automatic filter construction.
- Removed obsolete members from Task.
- Added tag support to the "add" command.

src/Context.cpp

@@ -173,8 +173,8 @@ std::string Context::dispatch ()
   else if (cmd.command == "help")              { out = longUsage             (); }
   else if (cmd.command == "stats")             { out = handleReportStats     (); }
   else if (cmd.command == "info")              { out = handleInfo            (); }
-/*
   else if (cmd.command == "history")           { out = handleReportHistory   (); }
+/*
   else if (cmd.command == "ghistory")          { out = handleReportGHistory  (); }
   else if (cmd.command == "calendar")          { out = handleReportCalendar  (); }
   else if (cmd.command == "summary")           { out = handleReportSummary   (); }
@@ -365,6 +365,7 @@ std::cout << "# parse tag addition '" << *arg << "'" << std::endl;
           foundSomethingAfterSequence = true;
 
         tagAdditions.push_back (arg->substr (1, std::string::npos));
+        task.addTag            (arg->substr (1, std::string::npos));
       }
 
       // Tags to remove begin with '-'.
@@ -451,7 +452,7 @@ std::cout << "# parse post-termination description '" << *arg << "'"
     }
   }
 
-  if (noVerticalSpace (descCandidate))
+  if (descCandidate != "" && noVerticalSpace (descCandidate))
     task.set ("description", descCandidate);
 
   // TODO task.validate ()
@@ -484,16 +485,46 @@ std::cout << "# parse post-termination description '" << *arg << "'"
 void Context::constructFilter ()
 {
   foreach (att, task)
-    if (att->first != "uuid")
-      filter.push_back (att->second);
-
-  // TODO this doesn't work.
-  if (task.has ("description"))
   {
-    std::vector <std::string> words;
-    split (words, task.get ("description"), ' ');
-    foreach (word, words)
-      filter.push_back (Att ("description", "contains", *word));
+
+    // TODO this doesn't work.
+    if (att->first == "description")
+    {
+      std::vector <std::string> words;
+      split (words, att->second.value (), ' ');
+      foreach (word, words)
+      {
+        filter.push_back (Att ("description", "has", *word));
+        std::cout << "Context::constructFilter " << att->first << "=" << att->second.value () << std::endl;
+      }
+    }
+
+    // TODO Don't create a uuid for every task?
+    // Every task has a unique uuid by default, and it shouldn't be included.
+    // The mechanism for filtering on tags is +/-<tag>, not tags:foo which
+    // means that there can only be one tag, "foo".
+    else if (att->first != "uuid" &&
+             att->first != "tags")
+    {
+      filter.push_back (att->second);
+      std::cout << "Context::constructFilter " << att->first << "=" << att->second.value () << std::endl;
+    }
+  }
+
+  // TODO Include Annotations as part of the description?
+
+  // Include tagAdditions.
+  foreach (tag, tagAdditions)
+  {
+    filter.push_back (Att ("tags", "has", *tag));
+    std::cout << "Context::constructFilter tags=+" << *tag << std::endl;
+  }
+
+  // TODO Include tagRemovals.
+  foreach (tag, tagRemovals)
+  {
+    filter.push_back (Att ("tags", "hasnt", *tag));
+    std::cout << "Context::constructFilter tags=-" << *tag << std::endl;
   }
 }