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/* Copyright (c) 1997-2024
Ewgenij Gawrilow, Michael Joswig, and the polymake team
Technische Universität Berlin, Germany
https://polymake.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, or (at your option) any
later version: http://www.gnu.org/licenses/gpl.txt.
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.
--------------------------------------------------------------------------------
*/
#pragma once
#include "polymake/Map.h"
#include "polymake/Matrix.h"
#include "polymake/Vector.h"
#include "polymake/Set.h"
#include "polymake/socketstream.h"
#include <cctype>
namespace polymake { namespace common {
// A simple line parser
class SimpleGeometryParser {
public:
typedef Map<std::string, double> param_map;
typedef Map<std::string, bool> iparam_map;
protected:
void print_name(std::ostream& os, const std::string& this_geom_name) const
{
if (!os) throw std::runtime_error("communication error");
os << "n " << this_geom_name << '\n';
}
template <typename Window>
void print_points(std::ostream& os, const Window& W, std::false_type) const
{
const Matrix<double>& P=W.get_points();
os << "# " << P.rows() << '\n';
for (auto p=entire(rows(P)); !p.at_end(); ++p)
wrap(os) << "p " << *p << '\n';
}
template <typename Window>
void print_points(std::ostream& os, const Window& W, std::true_type) const
{
os << "P " << W.get_shared_matrix_id() << '\n';
}
template <typename Window>
void print_points(std::ostream& os, const Window& W) const
{
print_points(os, W, bool_constant<Window::has_shared_matrix>());
}
template <typename Window>
void print_params(std::ostream& os, const Window& W) const
{
const param_map& params = W.get_params();
const iparam_map& iparams = W.get_iparams();
for (const auto& p : params) {
os << "s " << p.first << " " << p.second << '\n';
auto ipi=iparams.find(p.first);
if (!ipi.at_end())
os << "i " << ipi->first << " " << ipi->second << '\n';
}
}
template <typename Params> static
typename pm::object_traits<Params>::model* param_model(const Params&) { return nullptr; }
static pm::is_scalar* param_model(const std::string&) { return nullptr; }
template <typename Window, typename Params>
void print_params(std::ostream& os, const Window& W, const Params& params) const
{
print_params(os, W, params, param_model(params));
}
template <typename Window, typename Params>
void print_params(std::ostream& os, const Window& W, const Params& param_name, pm::is_scalar*) const
{
const param_map& params = W.get_params();
const iparam_map& iparams = W.get_iparams();
os << "s " << param_name << " " << params[param_name] << '\n';
auto ipi=iparams.find(param_name);
if (!ipi.at_end())
os << "i " << param_name << " " << ipi->second << '\n';
}
template <typename Window, typename Params>
void print_params(std::ostream& os, const Window& W, const Params& param_name, pm::is_container*) const
{
const param_map& params = W.get_params();
const iparam_map& iparams = W.get_iparams();
for (const auto& param : params) {
os << "s " << param.first << " " << param.second << '\n';
auto ipi=iparams.find(param.first);
if (!ipi.at_end())
os << "i " << param.first << " " << ipi->second << '\n';
}
}
void print_end(std::ostream& os) const
{
os << 'x' << endl;
}
public:
std::istringstream line;
template <typename Window>
void print_short(std::ostream& os, const Window& W) const;
template <typename Window, typename Params>
void print_short(std::ostream& os, const Window& W, const Params& params) const;
template <typename Window>
void print_long(std::ostream& os, const Window& W) const;
void print_empty(std::ostream& os) { print_end(os); }
void print_warning(std::ostream& os, const std::string& this_geom_name, const std::string& message) const
{
print_name(os, this_geom_name);
os << "w " << message << '\n';
print_end(os);
}
template <typename Window, typename Params>
void print_error(std::ostream& os, const Window& W, const Params& params, const std::string& message) const;
template <typename Window>
void loop(pm::socketstream& js, Window& W);
std::pair<Int, Vector<double>> get_point();
};
template <typename Window>
void SimpleGeometryParser::print_short(std::ostream& os, const Window& W) const
{
print_name(os, W.get_name());
print_points(os, W);
print_end(os);
}
template <typename Window, typename Params>
void SimpleGeometryParser::print_short(std::ostream& os, const Window& W, const Params& params) const
{
print_name(os, W.get_name());
print_points(os, W);
print_params(os, W, params);
print_end(os);
}
template <typename Window>
void SimpleGeometryParser::print_long(std::ostream& os, const Window& W) const
{
print_name(os, W.get_name());
print_points(os, W);
print_params(os, W);
print_end(os);
}
template <typename Window, typename Params>
void SimpleGeometryParser::print_error(std::ostream& os, const Window& W, const Params& params, const std::string& message) const
{
print_name(os, W.get_name());
print_points(os, W);
print_params(os, W, params);
os << "e " << message << '\n';
print_end(os);
}
template <typename Window>
void SimpleGeometryParser::loop(pm::socketstream& js, Window& W)
{
char command=0, c;
std::string param;
double value;
while (js >> command) {
switch (command) {
case 'n':
js.skip('\n');
break;
case 'p': {
Int p_index;
if (!(js >> p_index)) return;
W.set_point(p_index);
break;
}
case 'P': {
W.set_points(); js.skip('\n');
break;
}
case 's':
if (!(js >> param)) return;
while (isspace(c = char(js.peek()))) js.get();
if (c=='n') {
js >> param;
if (param=="null") break;
throw std::runtime_error("invalid option value: "+param);
} else if (c!='-' && !isdigit(c)) {
js >> param;
throw std::runtime_error("invalid option value: "+param);
}
if (!(js >> value)) return;
W.set_param(param,value);
break;
case 'f': {
pm::PlainParserListCursor<Int, mlist<pm::TrustedValue<std::false_type>>> reader(js);
Set<Int> f;
Int i;
while (js >> i) {
f+=i;
}
js.clear();
W.set_facet(f);
break;
}
case 'x':
js.skip('\n');
W.restart(*this);
break;
default:
throw std::runtime_error(std::string("unknown command: ")+command);
}
}
}
} }
// Local Variables:
// mode:C++
// c-basic-offset:3
// indent-tabs-mode:nil
// End:
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