CmdHelp Class Reference

#include <CmdHelp.hh>

Inheritance diagram for CmdHelp:

Collaboration diagram for CmdHelp:

Public Member Functions
	CmdHelp ()
	CmdHelp (const CmdHelp &cmd)
virtual	~CmdHelp ()
virtual bool	execute (const std::vector< DataObject > &arguments)
virtual std::string	helpText () const
Public Member Functions inherited from CustomCommand
	CustomCommand (std::string name)
	CustomCommand (const CustomCommand &cmd)
virtual	~CustomCommand ()
std::string	name () const
void	setContext (InterpreterContext *context)
InterpreterContext *	context () const
void	setInterpreter (ScriptInterpreter *si)
ScriptInterpreter *	interpreter () const
bool	checkArgumentCount (int argumentCount, int minimum, int maximum)
bool	checkIntegerArgument (const DataObject &argument)
bool	checkPositiveIntegerArgument (const DataObject &argument)
bool	checkUnsignedIntegerArgument (const DataObject &argument)
bool	checkDoubleArgument (const DataObject &argument)

Private Member Functions
CmdHelp &	operator= (const CmdHelp &)
	Assignment not allowed.

Detailed Description

Help command.

Prints the help text of the CustomCommand that is given as parameter to execute.

Definition at line 50 of file CmdHelp.hh.

Constructor & Destructor Documentation

CmdHelp() [1/2]

CmdHelp::CmdHelp

(

)

Constructor.

Definition at line 47 of file CmdHelp.cc.

                 : CustomCommand("help") {
}

CmdHelp() [2/2]

CmdHelp::CmdHelp

(

const CmdHelp &

cmd

)

~CmdHelp()

CmdHelp::~CmdHelp ( )

virtual

Destructor.

Definition at line 53 of file CmdHelp.cc.

                  {
}

Member Function Documentation

execute()

bool CmdHelp::execute ( const std::vector< DataObject > &  arguments )

virtual

Executes the help command.

Parameters

arguments

Arguments for the command.

Returns

True if execution is succesfull, false otherwise

Exceptions

NumberFormatException

If conversion of DataObject fails.

Implements CustomCommand.

Definition at line 64 of file CmdHelp.cc.

                                                       {
    ScriptInterpreter* interp = interpreter();
    assert(interp != NULL);
    DataObject* obj = new DataObject();
    
    if (arguments.size() == 1) {
        string result = "Commands available:\n";
        vector<string> names = interp->customCommandsSortedByName();
        for (size_t i = 0; i < names.size(); i++) {
            result += names[i] + " ";
        }
        obj->setString(result);
        interp->setResult(obj);
        return true;
    } 
 
    if (arguments.size() != 2) {
        obj->setString("Wrong number of arguments");
        interp->setResult(obj);
        return false;
    }
    
    string cmdName = arguments[1].stringValue();
    CustomCommand* command = interp->customCommand(cmdName);
    if (command == NULL) {
        obj->setString("Unknown command: " + cmdName);
        interp->setResult(obj);
        return false;
    } else {
        obj->setString(command->helpText());
        interp->setResult(obj);
        return true;
    }
}

References assert, ScriptInterpreter::customCommand(), ScriptInterpreter::customCommandsSortedByName(), CustomCommand::helpText(), CustomCommand::interpreter(), ScriptInterpreter::setResult(), and DataObject::setString().

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helpText()

string CmdHelp::helpText ( ) const

virtual

Returns help text.

Returns

Help text.

Implements CustomCommand.

Definition at line 105 of file CmdHelp.cc.

                        {
    return "Use help command to get help";
}

operator=()

CmdHelp & CmdHelp::operator= ( const CmdHelp &  )

private

Assignment not allowed.

---

The documentation for this class was generated from the following files:

• CmdHelp.hh
• CmdHelp.cc