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// file : CCF/CodeGenerationKit/CommandLine.hpp
// author : Boris Kolpackov <boris@dre.vanderbilt.edu>
// cvs-id : $Id$
#ifndef COMMAND_LINE_HPP
#define COMMAND_LINE_HPP
#include <algorithm>
#include <vector>
#include <string>
//@@ this stuff needs proper reimplementation
class CommandLine
{
public:
CommandLine ()
{
}
// Option constrain checking
public:
bool
require (std::string option) const throw ()
{
return std::find_if (options.begin (),
options.end (),
OptionNamePredicat (option)) != options.end ();
}
bool
depends (std::string dependant,
std::string principal) const throw ()
{
Options::const_iterator begin = options.begin ();
Options::const_iterator end = options.end ();
if (std::find_if (begin, end, OptionNamePredicat (dependant)) != end)
{
return std::find_if (begin, end, OptionNamePredicat (principal)) != end;
}
else
{
return true;
}
}
bool
inconsistent (std::string a,
std::string b) const throw ()
{
Options::const_iterator begin = options.begin ();
Options::const_iterator end = options.end ();
if (std::find_if (begin, end, OptionNamePredicat (a)) != end)
{
return std::find_if (begin, end, OptionNamePredicat (b)) == end;
}
else
{
return true;
}
}
std::string
get_value (std::string name, std::string const& not_found_value) const
{
Options::const_iterator i = std::find_if (
options.begin (),
options.end (),
OptionNamePredicat (name));
if (i != options.end () && !(i->value ().empty ()))
{
return i->value ();
}
else
{
return not_found_value;
}
}
// @@ the option should probably be searched in reverse order
//
std::string
get_value (std::string name, char const* not_found_value) const
{
Options::const_iterator i = std::find_if (
options.begin (),
options.end (),
OptionNamePredicat (name));
if (i != options.end () && !(i->value ().empty ()))
{
return i->value ();
}
else
{
return std::string (not_found_value);
}
}
bool
get_value (std::string name, bool not_found_value) const
{
Options::const_iterator i = std::find_if (
options.begin (),
options.end (),
OptionNamePredicat (name));
if (i != options.end ())
{
return true;
}
else
{
return not_found_value;
}
}
bool
get_all_values (std::string name, std::vector<std::string> &values)
{
Options::iterator i (options.begin ());
while ((i = std::find_if (i,
options.end (),
OptionNamePredicat (name))) != options.end ())
{
values.push_back (i->value ());
++i;
}
return values.size () != 0;
}
struct Option
{
Option (std::string const& name)
: name_ (name)
{
}
Option (std::string const& name,
std::string const& value)
: name_ (name),
value_ (value)
{
}
std::string const&
name () const
{
return name_;
}
std::string const&
value () const
{
return value_;
}
private:
std::string name_;
std::string value_;
};
typedef
std::vector<Option>
Options;
typedef
Options::const_iterator
OptionsIterator;
OptionsIterator
options_begin () const
{
return options.begin ();
}
OptionsIterator
options_end () const
{
return options.end ();
}
// Arguments
//
//
typedef
std::vector<std::string>
Arguments;
typedef
Arguments::const_iterator
ArgumentsIterator;
ArgumentsIterator
arguments_begin () const
{
return arguments.begin ();
}
ArgumentsIterator
arguments_end () const
{
return arguments.end ();
}
public:
struct OptionNamePredicat
{
OptionNamePredicat (std::string const& name)
: name_ (name)
{
}
bool operator ()(Option const& option) throw ()
{
return name_ == option.name ();
}
private:
std::string const name_;
};
std::string command;
Options options;
Arguments arguments;
};
#endif // COMMAND_LINE_HPP
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