CLI/CmdCalendar

- When the binary is named (or symlinked to) 'cal', then CLI::_args[0]
  must be clobbered, and restored for subsequent commands.

src/CLI.cpp

@@ -411,6 +411,12 @@ void CLI::analyze (bool parse /* = true */, bool strict /* = false */)
     }
 
     _args.push_back (a);
+
+    if (a.hasTag ("CALENDAR"))
+    {
+      A cal ("argCal", "calendar");
+      _args.push_back (cal);
+    }
   }
 
   if (context.config.getInteger ("debug.parser") >= 3)

src/commands/CmdCalendar.cpp

@@ -335,7 +335,11 @@ int CmdCalendar::execute (std::string& output)
       if (context.commands.find (report) == context.commands.end ())
         throw std::string (STRING_ERROR_DETAILS);
 
+      // If the executable was "cal" or equivalent, replace it with "task".
       std::string executable = context.cli._args[0].attribute ("raw");
+      std::string::size_type cal = executable.find ("cal");
+      if (cal != std::string::npos)
+        executable = executable.substr (0, cal) + PACKAGE;
 
       std::vector <std::string> args;
       args.push_back (executable);