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pvvmud/common/lib/utils/commandparser.C
2025-03-05 08:37:43 +01:00

115 lines
3.5 KiB
C

/*
* PVVMUD a 3D MUD
* Copyright (C) 1998-1999 Programvareverkstedet (pvv@pvv.org)
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "commandparser.H"
CCommandParser::CCommand::CCommand(string & commandString,CommandFunc_t commandFunc){
m_commandString = commandString;
m_commandFunc = commandFunc;
}
string & CCommandParser::CCommand::getCommandString(){
return m_commandString;
}
void CCommandParser::CCommand::executeCommand(argv_t & argv,
CCommandParser * parser)
{
(parser->*m_commandFunc)(argv);
}
CCommandParser::CCommandParser(){
m_commandPrefix = '/';
}
///////////////////////////////////////////////////////////////////////////////
// parseCommand
// Parse commands on the form "/command", "/command arg...", "Message..."
// Side effects on commandString:
// Any command with arguments will be null terminated before arguments
///////////////////////////////////////////////////////////////////////////////
void CCommandParser::parseCommand(const string & commandString){
string command = commandString;
if (command[0] != m_commandPrefix){ // Is this a message?
commandChat(command);
} else { // No it is a command
command.erase(0,1); // Don't need leading '/'
argv_t argv;
createArgv(command,argv);
for (int index = 0; index < m_commandList.size(); index++){
if (m_commandList[index].getCommandString() == argv[0]){
m_commandList[index].executeCommand(argv,this);
return;
}
}
commandUnknown(commandString);
}
}
void CCommandParser::setCommandPrefix(char commandPrefix){
m_commandPrefix = commandPrefix;
}
///////////////////////////////////////////////////////////////////////////////
// createArgv
// Convert string to table of strings
///////////////////////////////////////////////////////////////////////////////
void CCommandParser::createArgv(string & argString, argv_t & argv){
string::size_type pos;
// Remove all double spaces
while ((pos = argString.find(" ")) != string::npos)
argString.replace(pos,2," ");
// Create argv
string::size_type last = 0;
string::size_type next;
while ((next = argString.find(" ",last)) != string::npos) {
argv.push_back(string(argString,last,next-last));
last = next + 1;
}
next = argString.size();
argv.push_back(string(argString,last,next));
}
///////////////////////////////////////////////////////////////////////////////
// addCommand
///////////////////////////////////////////////////////////////////////////////
void CCommandParser::addCommand(string commandString,
CommandFunc_t commandFunc)
{
m_commandList.push_back( CCommand(commandString,commandFunc));
}
void CCommandParser::commandChat(const string & chatMessage){
commandUnknown(chatMessage);
}
void CCommandParser::commandUnknown(const string & commandString){
}