mirror of
https://github.com/cuberite/TCLAP.git
synced 2025-08-04 10:16:41 -04:00
446 lines
11 KiB
C++
446 lines
11 KiB
C++
|
|
/******************************************************************************
|
|
*
|
|
* file: MultiArg.h
|
|
*
|
|
* Copyright (c) 2003, Michael E. Smoot .
|
|
* All rights reverved.
|
|
*
|
|
* See the file COPYING in the top directory of this distribution for
|
|
* more information.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED _AS IS_, WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
|
|
#ifndef __MULTIPLE_ARGUMENT_HH__
|
|
#define __MULTIPLE_ARGUMENT_HH__
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
#include <sstream>
|
|
#include <tclap/Visitor.h>
|
|
#include <tclap/CommandLine.h>
|
|
|
|
namespace TCLAP {
|
|
|
|
/**
|
|
* An argument that allows multiple values of type T to be specified. Very
|
|
* similar to a ValueArg, except a vector of values will be returned
|
|
* instead of just one.
|
|
*/
|
|
template<class T>
|
|
class MultiArg : public Arg
|
|
{
|
|
protected:
|
|
|
|
/**
|
|
* The list of values parsed from the CmdLine.
|
|
*/
|
|
std::vector<T> _values;
|
|
|
|
/**
|
|
* A list of allowed values.
|
|
* A list of values allowed for this argument. If the value parsed
|
|
* for this arg is not found in this list, then an exception is
|
|
* thrown. If the list is empty, then any value is allowed.
|
|
*/
|
|
std::vector<T> _allowed;
|
|
|
|
/**
|
|
* The description of type T to be used in the usage.
|
|
*/
|
|
std::string _typeDesc;
|
|
|
|
/**
|
|
* Extracts the value from the string.
|
|
* Attempts to parse string as type T, if this fails an exception
|
|
* is thrown.
|
|
* \param val - The string to be read.
|
|
*/
|
|
|
|
void _extractValue( const std::string& val );
|
|
|
|
/**
|
|
* Checks to see if parsed value is in allowed list.
|
|
* \param val - value parsed (only used in output).
|
|
*/
|
|
void _checkAllowed( const std::string& val );
|
|
|
|
public:
|
|
|
|
/**
|
|
* Constructor.
|
|
* \param flag - The one character flag that identifies this
|
|
* argument on the command line.
|
|
* \param name - A one word name for the argument. Can be
|
|
* used as a long flag on the command line.
|
|
* \param desc - A description of what the argument is for or
|
|
* does.
|
|
* \param req - Whether the argument is required on the command
|
|
* line.
|
|
* \param typeDesc - A short, human readable description of the
|
|
* type that this object expects. This is used in the generation
|
|
* of the USAGE statement. The goal is to be helpful to the end user
|
|
* of the program.
|
|
* \param v - An optional visitor. You probably should not
|
|
* use this unless you have a very good reason.
|
|
*/
|
|
MultiArg( const std::string& flag,
|
|
const std::string& name,
|
|
const std::string& desc,
|
|
bool req,
|
|
const std::string& typeDesc,
|
|
Visitor* v = NULL);
|
|
|
|
/**
|
|
* Constructor.
|
|
* \param flag - The one character flag that identifies this
|
|
* argument on the command line.
|
|
* \param name - A one word name for the argument. Can be
|
|
* used as a long flag on the command line.
|
|
* \param desc - A description of what the argument is for or
|
|
* does.
|
|
* \param req - Whether the argument is required on the command
|
|
* line.
|
|
* \param typeDesc - A short, human readable description of the
|
|
* type that this object expects. This is used in the generation
|
|
* of the USAGE statement. The goal is to be helpful to the end user
|
|
* of the program.
|
|
* \param parser - A CmdLine parser object to add this Arg to
|
|
* \param v - An optional visitor. You probably should not
|
|
* use this unless you have a very good reason.
|
|
*/
|
|
MultiArg( const std::string& flag,
|
|
const std::string& name,
|
|
const std::string& desc,
|
|
bool req,
|
|
const std::string& typeDesc,
|
|
CmdLine& parser,
|
|
Visitor* v = NULL );
|
|
/**
|
|
* Constructor.
|
|
* \param flag - The one character flag that identifies this
|
|
* argument on the command line.
|
|
* \param name - A one word name for the argument. Can be
|
|
* used as a long flag on the command line.
|
|
* \param desc - A description of what the argument is for or
|
|
* does.
|
|
* \param req - Whether the argument is required on the command
|
|
* line.
|
|
* \param allowed - A vector of type T that where the values in the
|
|
* vector are the only values allowed for the arg.
|
|
* \param v - An optional visitor. You probably should not
|
|
* use this unless you have a very good reason.
|
|
*/
|
|
MultiArg( const std::string& flag,
|
|
const std::string& name,
|
|
const std::string& desc,
|
|
bool req,
|
|
const std::vector<T>& allowed,
|
|
Visitor* v = NULL );
|
|
|
|
/**
|
|
* Constructor.
|
|
* \param flag - The one character flag that identifies this
|
|
* argument on the command line.
|
|
* \param name - A one word name for the argument. Can be
|
|
* used as a long flag on the command line.
|
|
* \param desc - A description of what the argument is for or
|
|
* does.
|
|
* \param req - Whether the argument is required on the command
|
|
* line.
|
|
* \param allowed - A vector of type T that where the values in the
|
|
* vector are the only values allowed for the arg.
|
|
* \param parser - A CmdLine parser object to add this Arg to
|
|
* \param v - An optional visitor. You probably should not
|
|
* use this unless you have a very good reason.
|
|
*/
|
|
MultiArg( const std::string& flag,
|
|
const std::string& name,
|
|
const std::string& desc,
|
|
bool req,
|
|
const std::vector<T>& allowed,
|
|
CmdLine& parser,
|
|
Visitor* v = NULL );
|
|
|
|
/**
|
|
* Handles the processing of the argument.
|
|
* This re-implements the Arg version of this method to set the
|
|
* _value of the argument appropriately. It knows the difference
|
|
* between labeled and unlabeled.
|
|
* \param i - Pointer the the current argument in the list.
|
|
* \param args - Mutable list of strings. Passed from main().
|
|
*/
|
|
virtual bool processArg(int* i, std::vector<std::string>& args);
|
|
|
|
/**
|
|
* Returns a vector of type T containing the values parsed from
|
|
* the command line.
|
|
*/
|
|
const std::vector<T>& getValue();
|
|
|
|
/**
|
|
* Returns the a short id string. Used in the usage.
|
|
* \param val - value to be used.
|
|
*/
|
|
virtual std::string shortID(const std::string& val="val") const;
|
|
|
|
/**
|
|
* Returns the a long id string. Used in the usage.
|
|
* \param val - value to be used.
|
|
*/
|
|
virtual std::string longID(const std::string& val="val") const;
|
|
|
|
/**
|
|
* Once we've matched the first value, then the arg is no longer
|
|
* required.
|
|
*/
|
|
virtual bool isRequired() const;
|
|
|
|
private:
|
|
|
|
/**
|
|
* Common initialization code for constructors with allowed vectors.
|
|
*/
|
|
void allowedInit();
|
|
};
|
|
|
|
/**
|
|
*
|
|
*/
|
|
template<class T>
|
|
void MultiArg<T>::allowedInit()
|
|
{
|
|
for ( unsigned int i = 0; i < _allowed.size(); i++ )
|
|
{
|
|
std::ostringstream os;
|
|
os << _allowed[i];
|
|
|
|
std::string temp( os.str() );
|
|
|
|
if ( i > 0 )
|
|
_typeDesc += "|";
|
|
_typeDesc += temp;
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
template<class T>
|
|
MultiArg<T>::MultiArg(const std::string& flag,
|
|
const std::string& name,
|
|
const std::string& desc,
|
|
bool req,
|
|
const std::string& typeDesc,
|
|
Visitor* v)
|
|
: Arg( flag, name, desc, req, true, v ),
|
|
_typeDesc( typeDesc )
|
|
{ }
|
|
|
|
template<class T>
|
|
MultiArg<T>::MultiArg(const std::string& flag,
|
|
const std::string& name,
|
|
const std::string& desc,
|
|
bool req,
|
|
const std::string& typeDesc,
|
|
CmdLine& parser,
|
|
Visitor* v)
|
|
: Arg( flag, name, desc, req, true, v ),
|
|
_typeDesc( typeDesc )
|
|
{
|
|
parser.add( this );
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
template<class T>
|
|
MultiArg<T>::MultiArg(const std::string& flag,
|
|
const std::string& name,
|
|
const std::string& desc,
|
|
bool req,
|
|
const std::vector<T>& allowed,
|
|
Visitor* v)
|
|
: Arg( flag, name, desc, req, true, v ),
|
|
_allowed( allowed )
|
|
{
|
|
allowedInit();
|
|
}
|
|
|
|
template<class T>
|
|
MultiArg<T>::MultiArg(const std::string& flag,
|
|
const std::string& name,
|
|
const std::string& desc,
|
|
bool req,
|
|
const std::vector<T>& allowed,
|
|
CmdLine& parser,
|
|
Visitor* v)
|
|
: Arg( flag, name, desc, req, true, v ),
|
|
_allowed( allowed )
|
|
{
|
|
allowedInit();
|
|
parser.add( this );
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
template<class T>
|
|
const std::vector<T>& MultiArg<T>::getValue() { return _values; }
|
|
|
|
/**
|
|
*
|
|
*/
|
|
template<class T>
|
|
bool MultiArg<T>::processArg(int *i, std::vector<std::string>& args)
|
|
{
|
|
if ( _ignoreable && Arg::ignoreRest() )
|
|
return false;
|
|
|
|
if ( _hasBlanks( args[*i] ) )
|
|
return false;
|
|
|
|
std::string flag = args[*i];
|
|
std::string value = "";
|
|
|
|
trimFlag( flag, value );
|
|
|
|
if ( argMatches( flag ) )
|
|
{
|
|
if ( Arg::_delimiter != ' ' && value == "" )
|
|
throw( ArgException( "Couldn't find delimiter for this argument!",
|
|
toString() ) );
|
|
|
|
if ( value == "" )
|
|
{
|
|
(*i)++;
|
|
if ( (unsigned int)*i < args.size() )
|
|
_extractValue( args[*i] );
|
|
else
|
|
throw( ArgException("Missing a value for this argument!",
|
|
toString() ) );
|
|
}
|
|
else
|
|
_extractValue( value );
|
|
|
|
_checkWithVisitor();
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
template<class T>
|
|
void MultiArg<T>::_extractValue( const std::string& val )
|
|
{
|
|
T temp;
|
|
std::istringstream is(val);
|
|
|
|
int valuesRead = 0;
|
|
while ( is.good() )
|
|
{
|
|
if ( is.peek() != EOF )
|
|
is >> temp;
|
|
else
|
|
break;
|
|
|
|
valuesRead++;
|
|
}
|
|
|
|
if ( is.fail() )
|
|
throw( ArgException("Couldn't read argument value from string '" +
|
|
val + "'", toString() ) );
|
|
|
|
if ( valuesRead > 1 )
|
|
throw( ArgException("More than one valid value parsed from string '" +
|
|
val + "'", toString() ) );
|
|
|
|
|
|
_values.push_back(temp);
|
|
|
|
_checkAllowed( val );
|
|
|
|
}
|
|
|
|
/**
|
|
* Specialization to handle strings with spaces in them. This is needed
|
|
* because there is no way to tell operator>> to ignore spaces.
|
|
*/
|
|
template<>
|
|
void MultiArg<std::string>::_extractValue( const std::string& val )
|
|
{
|
|
_values.push_back( val );
|
|
|
|
_checkAllowed( val );
|
|
}
|
|
|
|
/**
|
|
* Checks to see if the value parsed is in the allowed list.
|
|
*/
|
|
template<class T>
|
|
void MultiArg<T>::_checkAllowed( const std::string& val )
|
|
{
|
|
if ( _allowed.size() > 0 )
|
|
if ( find(_allowed.begin(),_allowed.end(),_values.back())
|
|
== _allowed.end() )
|
|
throw( ArgException( "Couldn't find '" + val +
|
|
"' in allowed list.", toString() ) );
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
template<class T>
|
|
std::string MultiArg<T>::shortID(const std::string& val) const
|
|
{
|
|
std::string id = Arg::shortID(_typeDesc) + " ... ";
|
|
|
|
return id;
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
template<class T>
|
|
std::string MultiArg<T>::longID(const std::string& val) const
|
|
{
|
|
std::string id = Arg::longID(_typeDesc) + " (accepted multiple times)";
|
|
|
|
return id;
|
|
}
|
|
|
|
/**
|
|
* Once we've matched the first value, then the arg is no longer
|
|
* required.
|
|
*/
|
|
template<class T>
|
|
bool MultiArg<T>::isRequired() const
|
|
{
|
|
if ( _required )
|
|
{
|
|
if ( _values.size() > 1 )
|
|
return false;
|
|
else
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|