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//-----------------------------------------------------------------------------
/** @file libboardgame_gtp/Arguments.cpp
@author Markus Enzenberger
@copyright GNU General Public License version 3 or later */
//-----------------------------------------------------------------------------
#include "Arguments.h"
#include <cctype>
namespace libboardgame_gtp {
//-----------------------------------------------------------------------------
void Arguments::check_size(unsigned n) const
{
if (get_size() == n)
return;
if (n == 0)
throw Failure("no arguments allowed");
if (n == 1)
throw Failure("command needs one argument");
ostringstream msg;
msg << "command needs " << n << " arguments";
throw Failure(msg.str());
}
void Arguments::check_size_less_equal(unsigned n) const
{
if (get_size() <= n)
return;
if (n == 1)
throw Failure("command needs at most one argument");
ostringstream msg;
msg << "command needs at most " << n << " arguments";
throw Failure(msg.str());
}
template<>
string_view Arguments::get(unsigned i) const
{
if (i < get_size())
return m_line.get_element(m_line.get_idx_name() + i + 1);
ostringstream msg;
msg << "missing argument " << (i + 1);
throw Failure(msg.str());
}
template<>
string Arguments::get(unsigned i) const
{
auto s = get(i);
return {&*s.begin(), s.size()};
}
string Arguments::get_tolower(unsigned i) const
{
auto value = get<string>(i);
for (auto& c : value)
c = static_cast<char>(tolower(c));
return value;
}
string_view Arguments::get_remaining_line(unsigned i) const
{
if (i < get_size())
return m_line.get_trimmed_line_after_elem(m_line.get_idx_name() + i
+ 1);
ostringstream msg;
msg << "missing argument " << (i + 1);
throw Failure(msg.str());
}
//-----------------------------------------------------------------------------
} // namespace libboardgame_gtp
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