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/*
* Normaliz
* Copyright (C) 2007-2025 W. Bruns, B. Ichim, Ch. Soeger, U. v. d. Ohe
* 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 3 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* As an exception, when this program is distributed through (i) the App Store
* by Apple Inc.; (ii) the Mac App Store by Apple Inc.; or (iii) Google Play
* by Google Inc., then that store may impose any digital rights management,
* device limits and/or redistribution restrictions that are required by its
* terms of service.
*/
#include <iostream>
#include <cctype> // std::isdigit
#include <limits> // numeric_limits
#include <fstream>
#include <map>
#include <string>
#include "libnormaliz/options.h"
#include "libnormaliz/input_type.h"
// #include "libnormaliz/list_and_map_operations.h"
#include "libnormaliz/cone_property.h"
#include "libnormaliz/matrix.h"
#ifndef NORMALIZ_INPUT_H
#define NORMALIZ_INPUT_H
namespace libnormaliz {
template <typename Number>
InputMap<Number> readNormalizInput(istream& in,
OptionsHandler& options,
map<NumParam::Param, long>& num_param_input,
map<BoolParam::Param, bool>& bool_param_input,
map<PolyParam::Param, vector<string> >& poly_param_input,
renf_class_ptr& number_field);
// here defined for use in interfaces
void read_number_field_strings(istream& in, string& mp_string, string& indet, string& emb_string);
template <typename Integer>
Matrix<Integer> readMatrix(const string project);
inline mpq_class mpq_read(istream& in) {
const string numeric = "+-0123456789/.e";
in >> std::ws;
string s;
char c;
bool is_float = false;
while (in.good()) {
c = in.peek();
size_t pos = numeric.find(c);
if (pos == string::npos)
break;
if (pos > 12)
is_float = true;
in >> c;
s += c;
}
if (s == "") {
string t;
t += c;
throw BadInputException("Empty number string preceding character " + t +
". Most likely mismatch of amb_space and matrix format or forgotten keyword.");
}
// cout << "t " << s << " f " << is_float << endl;
if (s[0] == '+')
s = s.substr(1); // must suppress + sign for mpq_class
try {
if (!is_float) {
return mpq_class(s);
}
else
return dec_fraction_to_mpq(s);
} catch (const std::exception& e) {
cerr << e.what() << endl;
throw BadInputException("Illegal number string " + s + " in input, Exiting.");
}
}
// To be used from other sources
inline void string2coeff(mpq_class& coeff, const string& s) {
// cout << "SSSSSS " << s << endl;
const string numeric = "+-0123456789/.e "; // must allow blank
for (auto& c : s) {
size_t pos = numeric.find(c);
if (pos == string::npos)
throw BadInputException("Illegal character in numerical string");
}
stringstream sin(s);
coeff = mpq_read(sin);
// coeff=mpq_class(s);
}
#ifdef ENFNORMALIZ
static int xalloc = std::ios_base::xalloc();
// Normaliz implementation of deprecated e-antic functions
inline std::istream & nmz_set_pword(boost::intrusive_ptr<const renf_class> our_renf, std::istream & is)
{
is.pword(xalloc) = const_cast<void*>(reinterpret_cast<const void*>(&*our_renf));
return is;
}
inline boost::intrusive_ptr<const renf_class> nmz_get_pword(std::istream& is) {
return reinterpret_cast<renf_class*>(is.pword(xalloc));
}
inline void string2coeff(renf_elem_class& coeff, istream& in, const string& s) { // we need in to access the renf
try {
coeff = renf_elem_class(*nmz_get_pword(in), s);
} catch (const std::exception& e) {
cerr << e.what() << endl;
throw BadInputException("Illegal number string " + s + " in input, Exiting.");
}
}
inline void string2coeff(renf_elem_class& coeff, renf_class_ptr our_rnf, const string& s) { // we need in to access the renf
try {
coeff = renf_elem_class(*our_rnf, s);
} catch (const std::exception& e) {
cerr << e.what() << endl;
throw BadInputException("Illegal number string " + s + " in input, Exiting.");
}
}
inline void read_renf_elem_string(string& num_string, renf_elem_class& number, bool& is_rational, istream& in) {
char c;
is_rational = false;
in >> ws;
c = in.peek();
if (c != '(' && c != '\'' && c != '\"') { // rational number
mpq_class rat = mpq_read(in);
number = renf_elem_class(rat);
is_rational = true;
return;
}
// now we have a proper field element
in >> c; // read (
bool skip = false;
while (in.good()) {
c = in.peek();
if (c == ')' || c == '\'' || c == '\"') {
in >> c;
break;
}
if (c == '~' || c == '=' || c == '[') // skip the approximation
skip = true;
in.get(c);
if (in.fail())
throw BadInputException("Error in reading number: field element not terminated");
if (!skip)
num_string += c;
}
}
inline void read_number(istream& in, renf_elem_class& number) {
string num_string;
bool is_rational;
read_renf_elem_string(num_string, number, is_rational, in);
if(is_rational)
return;
string2coeff(number, in, num_string);
}
#endif
} // namespace libnormaliz
#endif
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