Enhancements - Cmd object

- New Cmd object to handle localized commands, customReports and general
  command parsing.
- Localized new Subst methods.
- Relocate guess method from parse.cpp to text.cpp.
- Converted Att object to use new valid/parse scheme.
- Unit tests for Cmd object.
- Fixed att.t.cpp unit tests.

src/Cmd.cpp

@@ -0,0 +1,175 @@
+////////////////////////////////////////////////////////////////////////////////
+// task - a command line task list manager.
+//
+// Copyright 2006 - 2009, Paul Beckingham.
+// All rights reserved.
+//
+// This program is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free Software
+// Foundation; either version 2 of the License, or (at your option) any later
+// version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+// details.
+//
+// You should have received a copy of the GNU General Public License along with
+// this program; if not, write to the
+//
+//     Free Software Foundation, Inc.,
+//     51 Franklin Street, Fifth Floor,
+//     Boston, MA
+//     02110-1301
+//     USA
+//
+////////////////////////////////////////////////////////////////////////////////
+
+#include <iostream>
+#include "Cmd.h"
+#include "Context.h"
+#include "util.h"
+#include "text.h"
+#include "i18n.h"
+
+extern Context context;
+
+////////////////////////////////////////////////////////////////////////////////
+Cmd::Cmd ()
+: command ("")
+{
+}
+
+////////////////////////////////////////////////////////////////////////////////
+Cmd::Cmd (const std::string& input)
+{
+  parse (input);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+Cmd::~Cmd ()
+{
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Determines whether the string represents a unique command name or custom
+// report name.
+bool Cmd::valid (const std::string& input)
+{
+  loadCommands ();
+  loadCustomReports ();
+
+  std::string candidate = lowerCase (input);
+
+  std::vector <std::string> matches;
+  autoComplete (candidate, commands, matches);
+  if (0 == matches.size ())
+      return false;
+
+  return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Determines whether the string represents a valid custom report name.
+bool Cmd::validCustom (const std::string& input)
+{
+  loadCustomReports ();
+
+  std::vector <std::string> matches;
+  autoComplete (lowerCase (input), customReports, matches);
+  return matches.size () == 1 ? true : false;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+void Cmd::parse (const std::string& input)
+{
+  loadCommands ();
+  loadCustomReports ();
+
+  std::string candidate = lowerCase (input);
+
+  std::vector <std::string> matches;
+  autoComplete (candidate, commands, matches);
+  if (1 == matches.size ())
+    command = matches[0];
+
+  else if (0 == matches.size ())
+    command = "";
+
+  else
+  {
+    std::string error = "Ambiguous command '" + candidate + "' - could be either of "; // TODO i18n
+
+    std::string combined;
+    join (combined, ", ", matches);
+    error += combined;
+
+    throw error + combined;
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+void Cmd::loadCommands ()
+{
+  if (commands.size () == 0)
+  {
+    commands.push_back (context.stringtable.get (CMD_ACTIVE,    "active"));
+    commands.push_back (context.stringtable.get (CMD_ADD,       "add"));
+    commands.push_back (context.stringtable.get (CMD_APPEND,    "append"));
+    commands.push_back (context.stringtable.get (CMD_ANNOTATE,  "annotate"));
+    commands.push_back (context.stringtable.get (CMD_CALENDAR,  "calendar"));
+    commands.push_back (context.stringtable.get (CMD_COLORS,    "colors"));
+    commands.push_back (context.stringtable.get (CMD_COMPLETED, "completed"));
+    commands.push_back (context.stringtable.get (CMD_DELETE,    "delete"));
+    commands.push_back (context.stringtable.get (CMD_DONE,      "done"));
+    commands.push_back (context.stringtable.get (CMD_DUPLICATE, "duplicate"));
+    commands.push_back (context.stringtable.get (CMD_EDIT,      "edit"));
+    commands.push_back (context.stringtable.get (CMD_EXPORT,    "export"));
+    commands.push_back (context.stringtable.get (CMD_HELP,      "help"));
+    commands.push_back (context.stringtable.get (CMD_HISTORY,   "history"));
+    commands.push_back (context.stringtable.get (CMD_GHISTORY,  "ghistory"));
+    commands.push_back (context.stringtable.get (CMD_IMPORT,    "import"));
+    commands.push_back (context.stringtable.get (CMD_INFO,      "info"));
+    commands.push_back (context.stringtable.get (CMD_NEXT,      "next"));
+    commands.push_back (context.stringtable.get (CMD_OVERDUE,   "overdue"));
+    commands.push_back (context.stringtable.get (CMD_PROJECTS,  "projects"));
+    commands.push_back (context.stringtable.get (CMD_START,     "start"));
+    commands.push_back (context.stringtable.get (CMD_STATS,     "statistics"));
+    commands.push_back (context.stringtable.get (CMD_STOP,      "stop"));
+    commands.push_back (context.stringtable.get (CMD_SUMMARY,   "summary"));
+    commands.push_back (context.stringtable.get (CMD_TAGS,      "tags"));
+    commands.push_back (context.stringtable.get (CMD_TIMESHEET, "timesheet"));
+    commands.push_back (context.stringtable.get (CMD_UNDELETE,  "undelete"));
+    commands.push_back (context.stringtable.get (CMD_UNDO,      "undo"));
+    commands.push_back (context.stringtable.get (CMD_VERSION,   "version"));
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+void Cmd::loadCustomReports ()
+{
+  if (customReports.size () == 0)
+  {
+    std::vector <std::string> all;
+    context.config.all (all);
+
+    foreach (i, all)
+    {
+      if (i->substr (0, 7) == "report.")
+      {
+        std::string report = i->substr (7, std::string::npos);
+        std::string::size_type columns = report.find (".columns");
+        if (columns != std::string::npos)
+        {
+          report = report.substr (0, columns);
+
+          // A custom report is also a command.
+          customReports.push_back (report);
+          commands.push_back (report);
+        }
+      }
+    }
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////