PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // PLearnCommandRegistry.cc 00004 // Copyright (C) 2002 Pascal Vincent 00005 // 00006 // Redistribution and use in source and binary forms, with or without 00007 // modification, are permitted provided that the following conditions are met: 00008 // 00009 // 1. Redistributions of source code must retain the above copyright 00010 // notice, this list of conditions and the following disclaimer. 00011 // 00012 // 2. Redistributions in binary form must reproduce the above copyright 00013 // notice, this list of conditions and the following disclaimer in the 00014 // documentation and/or other materials provided with the distribution. 00015 // 00016 // 3. The name of the authors may not be used to endorse or promote 00017 // products derived from this software without specific prior written 00018 // permission. 00019 // 00020 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00021 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00022 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00023 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00024 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00025 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00026 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00027 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00028 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00029 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00030 // 00031 // This file is part of the PLearn library. For more information on the PLearn 00032 // library, go to the PLearn Web site at www.plearn.org 00033 00034 00035 /* ******************************************************* 00036 * $Id: PLearnCommandRegistry.cc 6834 2007-04-05 01:35:37Z saintmlx $ 00037 * This file is part of the PLearn library. 00038 ******************************************************* */ 00039 00040 #include "PLearnCommandRegistry.h" 00041 #include <iostream> 00042 #include <vector> 00043 #include <plearn/base/HelpSystem.h> 00044 #include <plearn/io/PStream.h> 00045 00046 namespace PLearn { 00047 using namespace std; 00048 00049 PLearnCommandRegistry::command_map& PLearnCommandRegistry::commands() 00050 { 00051 static PLearnCommandRegistry::command_map commands_; 00052 return commands_; 00053 } 00054 00055 void PLearnCommandRegistry::do_register(PLearnCommand* command) 00056 { commands()[command->name] = command; } 00057 00058 bool PLearnCommandRegistry::is_registered(const string& commandname) 00059 { return commands().find(commandname)!=commands().end(); } 00060 00061 /* 00062 void PLearnCommandRegistry::print_command_summary(ostream& out) 00063 { 00064 command_map::iterator it = commands().begin(); 00065 command_map::iterator itend = commands().end(); 00066 while(it!=itend) 00067 { 00068 out << it->first << "\t: " << it->second->description << endl; 00069 ++it; 00070 } 00071 out << endl; 00072 } 00073 */ 00074 00076 void PLearnCommandRegistry::badcommand(const string& commandname) 00077 { 00078 perr << "No '" << commandname << "' command available." << endl; 00079 perr << "Available commands are: " << endl; 00080 //print_command_summary(cerr); 00081 perr << HelpSystem::helpCommands() << flush; 00082 perr << "You can get more help for any of these commands by invoking the help command" << endl; 00083 } 00084 00085 void PLearnCommandRegistry::run(const string& commandname, const vector<string>& args) 00086 { 00087 command_map::iterator it = commands().find(commandname); 00088 if(it==commands().end()) 00089 badcommand(commandname); 00090 else 00091 it->second->run(args); 00092 } 00093 00094 PLearnCommand* PLearnCommandRegistry::getCommand(const string& commandname) 00095 { 00096 command_map::iterator it = commands().find(commandname); 00097 if(it==commands().end()) badcommand(commandname); 00098 return it->second; 00099 } 00100 00101 00102 /* 00103 void PLearnCommandRegistry::help(const string& commandname, ostream& out) 00104 { 00105 command_map::iterator it = commands().find(commandname); 00106 if(it==commands().end()) 00107 badcommand(commandname); 00108 else 00109 { 00110 out << "*** Help for command '" << commandname << "' ***" << endl; 00111 out << it->second->description << endl; 00112 out << it->second->helpmsg << endl; 00113 } 00114 } 00115 */ 00116 00117 } // end of namespace PLearn 00118 00119 00120 /* 00121 Local Variables: 00122 mode:c++ 00123 c-basic-offset:4 00124 c-file-style:"stroustrup" 00125 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00126 indent-tabs-mode:nil 00127 fill-column:79 00128 End: 00129 */ 00130 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :