patrick/anthem
1
0
Fork 0
Code Issues 15 Releases 21 Activity

Started implementing color output (currently for head only).

Browse Source
This commit is contained in:
Patrick Lühne 2016-11-24 02:42:32 +01:00
parent e0d46c2e99
commit 018559b8cf
Signed by: patrick
GPG Key ID: 05F3611E97A70ABF
8 changed files with 603 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
app/main.cpp
View File

@ -2,6 +2,7 @@
#include <boost/program_options.hpp>
#include <anthem/Context.h>
#include <anthem/Translation.h>
int main(int argc, char **argv)
@ -28,6 +29,8 @@ int main(int argc, char **argv)
std::cout << description;
};
anthem::Context context;
try
{
po::store(po::command_line_parser(argc, argv)
@ -61,10 +64,10 @@ int main(int argc, char **argv)
if (variablesMap.count("input"))
{
const auto &inputFiles = variablesMap["input"].as<std::vector<std::string>>();
anthem::translate(inputFiles);
anthem::translate(inputFiles, context);
}
else
anthem::translate("std::cin", std::cin);
anthem::translate("std::cin", std::cin, context);
}
catch (const std::exception &e)
{

1
include/anthem/Head.h
View File

@ -4,6 +4,7 @@
#include <algorithm>
#include <anthem/Utils.h>
#include <anthem/output/Formatting.h>
namespace anthem
{

19
include/anthem/StatementVisitor.h
View File

@ -4,6 +4,7 @@
#include <anthem/Body.h>
#include <anthem/Head.h>
#include <anthem/Utils.h>
#include <anthem/output/ClingoOutput.h>
namespace anthem
{
@ -18,7 +19,7 @@ struct StatementVisitor
{
void visit(const Clingo::AST::Program &program, const Clingo::AST::Statement &statement, Context &context)
{
std::cout << "[program] " << program.name << std::endl;
context.logger.log(output::Priority::Debug, program.name);
if (!program.parameters.empty())
throwErrorAtLocation(statement.location, "program parameters currently unsupported", context);
@ -26,6 +27,8 @@ struct StatementVisitor
void visit(const Clingo::AST::Rule &rule, const Clingo::AST::Statement &, Context &context)
{
auto &outputStream = context.logger.outputStream();
// Concatenate all head terms
rule.head.data.accept(HeadLiteralCollectFunctionTermsVisitor(), rule.head, context);
@ -37,16 +40,18 @@ struct StatementVisitor
const auto &headTerm = **i;
if (i != context.headTerms.cbegin())
std::cout << ", ";
outputStream << ", ";
std::cout
<< AuxiliaryHeadVariablePrefix << (i - context.headTerms.cbegin())
<< " in " << headTerm;
const auto variableName = std::string(AuxiliaryBodyVariablePrefix) + std::to_string(i - context.headTerms.cbegin());
outputStream
<< output::Variable(variableName.c_str())
<< " " << output::Keyword("in") << " " << headTerm;
}
}
if (rule.body.empty() && context.headTerms.empty())
std::cout << "true";
outputStream << output::Boolean("true");
else
{
// Print translated body literals
@ -64,7 +69,7 @@ struct StatementVisitor
}
}
std::cout << " -> ";
outputStream << " " << output::Operator("->") << " ";
// Print consequent of the implication
rule.head.data.accept(HeadLiteralPrintSubstitutedVisitor(), rule.head, context);

6
include/anthem/Translation.h
View File

@ -4,6 +4,8 @@
#include <string>
#include <vector>
#include <anthem/Context.h>
namespace anthem
{
@ -13,8 +15,8 @@ namespace anthem
//
////////////////////////////////////////////////////////////////////////////////////////////////////
void translate(const std::vector<std::string> &fileNames);
void translate(const char *fileName, std::istream &stream);
void translate(const std::vector<std::string> &fileNames, Context &context);
void translate(const char *fileName, std::istream &stream, Context &context);
////////////////////////////////////////////////////////////////////////////////////////////////////

35
include/anthem/output/ClingoOutput.h Normal file
View File

@ -0,0 +1,35 @@
#ifndef __ANTHEM__OUTPUT__CLINGO_OUTPUT_H
#define __ANTHEM__OUTPUT__CLINGO_OUTPUT_H
#include <clingo.hh>
#include <anthem/output/ColorStream.h>
namespace anthem
{
namespace output
{
////////////////////////////////////////////////////////////////////////////////////////////////////
//
// ClingoOutput
//
////////////////////////////////////////////////////////////////////////////////////////////////////
ColorStream &operator<<(ColorStream &stream, const Clingo::Symbol &symbol);
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Sign &sign);
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Variable &variable);
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::BinaryOperator &binaryOperator);
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::UnaryOperation &unaryOperation);
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::BinaryOperation &binaryOperation);
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Interval &interval);
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Function &function);
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Pool &pool);
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Term &term);
////////////////////////////////////////////////////////////////////////////////////////////////////
}
}
#endif

111
include/anthem/output/Formatting.h
View File

@ -84,15 +84,14 @@ inline ColorStream &operator<<(ColorStream &stream, const ResetFormat &)
////////////////////////////////////////////////////////////////////////////////////////////////////
struct Token
struct Function
{
Function(const char *name)
: name{name}
{
const char *name;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
struct Function: public Token
{
const char *name;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
@ -107,8 +106,14 @@ inline ColorStream &operator<<(ColorStream &stream, const Function &function)
////////////////////////////////////////////////////////////////////////////////////////////////////
struct Keyword: public Token
struct Keyword
{
Keyword(const char *name)
: name{name}
{
};
const char *name;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
@ -116,30 +121,64 @@ struct Keyword: public Token
inline ColorStream &operator<<(ColorStream &stream, const Keyword &keyword)
{
return (stream
<< Format({Color::Blue, FontWeight::Normal})
<< Format({Color::Blue, FontWeight::Bold})
<< keyword.name
<< ResetFormat());
}
////////////////////////////////////////////////////////////////////////////////////////////////////
struct Number: public Token
struct Operator
{
Operator(const char *name)
: name{name}
{
};
const char *name;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
inline ColorStream &operator<<(ColorStream &stream, const Number &number)
inline ColorStream &operator<<(ColorStream &stream, const Operator &operator_)
{
return (stream << operator_.name);
}
////////////////////////////////////////////////////////////////////////////////////////////////////
template<typename T>
struct Number
{
Number(T value)
: value{value}
{
};
T value;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
template<typename T>
inline ColorStream &operator<<(ColorStream &stream, const Number<T> &number)
{
return (stream
<< Format({Color::Yellow, FontWeight::Normal})
<< number.name
<< number.value
<< ResetFormat());
}
////////////////////////////////////////////////////////////////////////////////////////////////////
struct Variable: public Token
struct Variable
{
Variable(const char *name)
: name{name}
{
};
const char *name;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
@ -154,8 +193,14 @@ inline ColorStream &operator<<(ColorStream &stream, const Variable &variable)
////////////////////////////////////////////////////////////////////////////////////////////////////
struct String: public Token
struct String
{
String(const char *content)
: content{content}
{
};
const char *content;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
@ -164,14 +209,20 @@ inline ColorStream &operator<<(ColorStream &stream, const String &string)
{
return (stream
<< Format({Color::Green, FontWeight::Normal})
<< "\"" << string.name << "\""
<< "\"" << string.content << "\""
<< ResetFormat());
}
////////////////////////////////////////////////////////////////////////////////////////////////////
struct Boolean: public Token
struct Boolean
{
Boolean(bool value)
: value{value}
{
};
bool value;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
@ -180,14 +231,20 @@ inline ColorStream &operator<<(ColorStream &stream, const Boolean &boolean)
{
return (stream
<< Format({Color::Red, FontWeight::Normal})
<< boolean.name
<< (boolean.value == true ? "true" : "false")
<< ResetFormat());
}
////////////////////////////////////////////////////////////////////////////////////////////////////
struct Reserved: public Token
struct Reserved
{
Reserved(const char *name)
: name{name}
{
};
const char *name;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
@ -202,8 +259,14 @@ inline ColorStream &operator<<(ColorStream &stream, const Reserved &reserved)
////////////////////////////////////////////////////////////////////////////////////////////////////
struct Heading1: public Token
struct Heading1
{
Heading1(const char *content)
: content{content}
{
};
const char *content;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
@ -213,7 +276,7 @@ inline ColorStream &operator<<(ColorStream &stream, const Heading1 &heading1)
return (stream
<< Format({Color::Blue, FontWeight::Bold})
<< "%---------------------------------------" << std::endl
<< "% " << heading1.name << std::endl
<< "% " << heading1.content << std::endl
<< "%---------------------------------------"
<< ResetFormat()
<< std::endl);
@ -221,8 +284,14 @@ inline ColorStream &operator<<(ColorStream &stream, const Heading1 &heading1)
////////////////////////////////////////////////////////////////////////////////////////////////////
struct Heading2: public Token
struct Heading2
{
Heading2(const char *content)
: content{content}
{
};
const char *content;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
@ -231,7 +300,7 @@ inline ColorStream &operator<<(ColorStream &stream, const Heading2 &heading2)
{
return (stream
<< Format({Color::Blue, FontWeight::Bold})
<< "% " << heading2.name
<< "% " << heading2.content
<< ResetFormat());
}

14
src/anthem/Translation.cpp
View File

@ -18,37 +18,35 @@ namespace anthem
//
////////////////////////////////////////////////////////////////////////////////////////////////////
void translate(const std::vector<std::string> &fileNames)
void translate(const std::vector<std::string> &fileNames, Context &context)
{
for (const auto &fileName : fileNames)
{
std::ifstream file(fileName, std::ios::in);
translate(fileName.c_str(), file);
translate(fileName.c_str(), file, context);
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void translate(const char *fileName, std::istream &stream)
void translate(const char *fileName, std::istream &stream, Context &context)
{
std::cout << "info: reading " << fileName << std::endl;
auto fileContent = std::string(std::istreambuf_iterator<char>(stream), {});
Context context;
const auto translateStatement =
[&context](const Clingo::AST::Statement &statement)
{
statement.data.accept(StatementVisitor(), statement, context);
std::cout << std::endl;
context.logger.outputStream() << std::endl;
};
const auto logger =
[](const auto warningCode, const auto *text)
[&context](const Clingo::WarningCode warningCode, const char *text)
{
std::cout << "warning: " << text << std::endl;
context.logger.log(output::Priority::Error, text);
};
Clingo::parse_program(fileContent.c_str(), translateStatement, logger);

449
src/anthem/output/ClingoOutput.cpp Normal file
View File

@ -0,0 +1,449 @@
#include <anthem/output/ClingoOutput.h>
#include <anthem/output/Formatting.h>
namespace anthem
{
namespace output
{
////////////////////////////////////////////////////////////////////////////////////////////////////
//
// ClingoOutput
//
////////////////////////////////////////////////////////////////////////////////////////////////////
const auto printCollection = [](auto &stream, const auto &collection,
const auto &preToken, const auto &delimiter, const auto &postToken, bool printTokensIfEmpty)
{
if (collection.empty() && !printTokensIfEmpty)
return;
if (collection.empty() && printTokensIfEmpty)
{
stream << preToken << postToken;
return;
}
stream << preToken;
// TODO: use cbegin/cend (requires support by Clingo::SymbolSpan)
for (auto i = collection.begin(); i != collection.end(); i++)
{
if (i != collection.begin())
stream << delimiter;
stream << *i;
}
stream << postToken;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
ColorStream &operator<<(ColorStream &stream, const Clingo::Symbol &symbol)
{
switch (symbol.type())
{
case Clingo::SymbolType::Infimum:
return (stream << Keyword("#inf"));
case Clingo::SymbolType::Supremum:
return (stream << Keyword("sup"));
case Clingo::SymbolType::Number:
return (stream << Number<decltype(symbol.number())>(symbol.number()));
case Clingo::SymbolType::String:
return (stream << String(symbol.string()));
case Clingo::SymbolType::Function:
{
const auto isNegative = symbol.is_negative();
assert(isNegative != symbol.is_positive());
const auto isUnaryTuple = (symbol.name()[0] == '\0' && symbol.arguments().size() == 1);
const auto printIfEmpty = (symbol.name()[0] == '\0' || !symbol.arguments().empty());
if (isNegative)
stream << Operator("-");
stream << Function(symbol.name());
const auto postToken = (isUnaryTuple ? ",)" : ")");
printCollection(stream, symbol.arguments(), "(", ", ", postToken, printIfEmpty);
return stream;
}
}
return stream;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Sign &sign)
{
switch (sign)
{
case Clingo::AST::Sign::None:
return stream;
case Clingo::AST::Sign::Negation:
return (stream << Keyword("not") << " ");
case Clingo::AST::Sign::DoubleNegation:
return (stream << Keyword("not") << " " << Keyword("not") << " ");
}
return stream;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Variable &variable)
{
return (stream << Variable(variable.name));
}
////////////////////////////////////////////////////////////////////////////////////////////////////
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::BinaryOperator &binaryOperator)
{
switch (binaryOperator)
{
case Clingo::AST::BinaryOperator::XOr:
return (stream << Operator("xor"));
case Clingo::AST::BinaryOperator::Or:
return (stream << Operator("or"));
case Clingo::AST::BinaryOperator::And:
return (stream << Operator("and"));
case Clingo::AST::BinaryOperator::Plus:
return (stream << Operator("+"));
case Clingo::AST::BinaryOperator::Minus:
return (stream << Operator("-"));
case Clingo::AST::BinaryOperator::Multiplication:
return (stream << Operator("*"));
case Clingo::AST::BinaryOperator::Division:
return (stream << Operator("/"));
case Clingo::AST::BinaryOperator::Modulo:
return (stream << Operator("\\"));
}
return stream;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::UnaryOperation &unaryOperation)
{
return (stream
<< Keyword(Clingo::AST::left_hand_side(unaryOperation.unary_operator))
<< unaryOperation.argument
<< Keyword(Clingo::AST::right_hand_side(unaryOperation.unary_operator)));
}
////////////////////////////////////////////////////////////////////////////////////////////////////
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::BinaryOperation &binaryOperation)
{
return (stream << "(" << binaryOperation.left
<< " " << binaryOperation.binary_operator
<< " " << binaryOperation.right << ")");
}
////////////////////////////////////////////////////////////////////////////////////////////////////
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Interval &interval)
{
return (stream << "(" << interval.left << Operator("..") << interval.right << ")");
}
////////////////////////////////////////////////////////////////////////////////////////////////////
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Function &function)
{
const auto isUnaryTuple = (function.name[0] == '\0' && function.arguments.size() == 1);
const auto printIfEmpty = (function.name[0] == '\0' || !function.arguments.empty());
if (function.external)
stream << Operator("@");
const auto postToken = (isUnaryTuple ? ",)" : ")");
printCollection(stream, function.arguments, "(", ", ", postToken, printIfEmpty);
return stream;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Pool &pool)
{
// Note: There is no representation for an empty pool
if (pool.arguments.empty())
return (stream << "(1/0)");
printCollection(stream, pool.arguments, "(", ";", ")", true);
return stream;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
struct TermOutputVisitor
{
void visit(const Clingo::Symbol &symbol, ColorStream &stream)
{
stream << symbol;
}
void visit(const Clingo::AST::Variable &variable, ColorStream &stream)
{
stream << variable;
}
void visit(const Clingo::AST::UnaryOperation &unaryOperation, ColorStream &stream)
{
stream << unaryOperation;
}
void visit(const Clingo::AST::BinaryOperation &binaryOperation, ColorStream &stream)
{
stream << binaryOperation;
}
void visit(const Clingo::AST::Interval &interval, ColorStream &stream)
{
stream << interval;
}
void visit(const Clingo::AST::Function &function, ColorStream &stream)
{
stream << function;
}
void visit(const Clingo::AST::Pool &pool, ColorStream &stream)
{
stream << pool;
}
};
////////////////////////////////////////////////////////////////////////////////////////////////////
ColorStream &operator<<(ColorStream &stream, const Clingo::AST::Term &term)
{
term.data.accept(TermOutputVisitor(), stream);
return stream;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////
/*
inline std::ostream &operator<<(std::ostream &out, Disjunction const &x) {
out << Detail::print(x.elements, "", "; ", "", false);
return out;
}
inline std::ostream &operator<<(std::ostream &out, HeadAggregate const &x) {
if (x.left_guard) { out << x.left_guard->term << " " << x.left_guard->comparison << " "; }
out << x.function << " { " << Detail::print(x.elements, "", "; ", "", false) << " }";
if (x.right_guard) { out << " " << x.right_guard->comparison << " " << x.right_guard->term; }
return out;
}
inline std::ostream &operator<<(std::ostream &out, HeadAggregateElement const &x) {
out << Detail::print(x.tuple, "", ",", "", false) << " : " << x.condition;
return out;
}
inline std::ostream &operator<<(std::ostream &out, BodyAggregate const &x) {
if (x.left_guard) { out << x.left_guard->term << " " << x.left_guard->comparison << " "; }
out << x.function << " { " << Detail::print(x.elements, "", "; ", "", false) << " }";
if (x.right_guard) { out << " " << x.right_guard->comparison << " " << x.right_guard->term; }
return out;
}
inline std::ostream &operator<<(std::ostream &out, BodyAggregateElement const &x) {
out << Detail::print(x.tuple, "", ",", "", false) << " : " << Detail::print(x.condition, "", ", ", "", false);
return out;
}
inline std::ostream &operator<<(std::ostream &out, Aggregate const &x) {
if (x.left_guard) { out << x.left_guard->term << " " << x.left_guard->comparison << " "; }
out << "{ " << Detail::print(x.elements, "", "; ", "", false) << " }";
if (x.right_guard) { out << " " << x.right_guard->comparison << " " << x.right_guard->term; }
return out;
}
inline std::ostream &operator<<(std::ostream &out, ConditionalLiteral const &x) {
out << x.literal << Detail::print(x.condition, " : ", ", ", "", true);
return out;
}
inline std::ostream &operator<<(std::ostream &out, Literal const &x) {
out << x.sign << x.data;
return out;
}
inline std::ostream &operator<<(std::ostream &out, Boolean const &x) {
out << (x.value ? "#true" : "#false");
return out;
}
inline std::ostream &operator<<(std::ostream &out, Comparison const &x) {
out << x.left << x.comparison << x.right;
return out;
}
inline std::ostream &operator<<(std::ostream &out, Id const &x) {
out << x.id;
return out;
}
inline std::ostream &operator<<(std::ostream &out, CSPLiteral const &x) {
out << x.term;
for (auto &y : x.guards) { out << y; }
return out;
}
inline std::ostream &operator<<(std::ostream &out, CSPGuard const &x) {
out << "$" << x.comparison << x.term;
return out;
}
inline std::ostream &operator<<(std::ostream &out, CSPSum const &x) {
if (x.terms.empty()) { out << "0"; }
else { out << Detail::print(x.terms, "", "$+", "", false); }
return out;
}
inline std::ostream &operator<<(std::ostream &out, CSPProduct const &x) {
if (x.variable) { out << x.coefficient << "$*$" << *x.variable.get(); }
else { out << x.coefficient; }
return out;
}
inline std::ostream &operator<<(std::ostream &out, Pool const &x) {
// NOTE: there is no representation for an empty pool
if (x.arguments.empty()) { out << "(1/0)"; }
else { out << Detail::print(x.arguments, "(", ";", ")", true); }
return out;
}
inline std::ostream &operator<<(std::ostream &out, Function const &x) {
bool tc = x.name[0] == '\0' && x.arguments.size() == 1;
bool ey = x.name[0] == '\0' || !x.arguments.empty();
out << (x.external ? "@" : "") << x.name << Detail::print(x.arguments, "(", ",", tc ? ",)" : ")", ey);
return out;
}
inline std::ostream &operator<<(std::ostream &out, Interval const &x) {
out << "(" << x.left << ".." << x.right << ")";
return out;
}
inline std::ostream &operator<<(std::ostream &out, BinaryOperation const &x) {
out << "(" << x.left << x.binary_operator << x.right << ")";
return out;
}
inline std::ostream &operator<<(std::ostream &out, UnaryOperation const &x) {
out << left_hand_side(x.unary_operator) << x.argument << right_hand_side(x.unary_operator);
return out;
}
inline std::ostream &operator<<(std::ostream &out, Variable const &x) {
out << x.name;
return out;
}
inline std::ostream &operator<<(std::ostream &out, Term const &x) {
out << x.data;
return out;
}
inline std::ostream &operator<<(std::ostream &out, Rule const &x) {
out << x.head << Detail::print_body(x.body, " :- ");
return out;
}
inline std::ostream &operator<<(std::ostream &out, Definition const &x) {
out << "#const " << x.name << " = " << x.value << ".";
if (x.is_default) { out << " [default]"; }
return out;
}
inline std::ostream &operator<<(std::ostream &out, ShowSignature const &x) {
out << "#show " << (x.csp ? "$" : "") << x.signature << ".";
return out;
}
inline std::ostream &operator<<(std::ostream &out, ShowTerm const &x) {
out << "#show " << (x.csp ? "$" : "") << x.term << Detail::print_body(x.body);
return out;
}
inline std::ostream &operator<<(std::ostream &out, Minimize const &x) {
out << Detail::print_body(x.body, ":~ ") << " [" << x.weight << "@" << x.priority << Detail::print(x.tuple, ",", ",", "", false) << "]";
return out;
}
inline std::ostream &operator<<(std::ostream &out, Script const &x) {
std::string s = x.code;
if (!s.empty() && s.back() == '\n') {
s.back() = '.';
}
out << s;
return out;
}
inline std::ostream &operator<<(std::ostream &out, Program const &x) {
out << "#program " << x.name << Detail::print(x.parameters, "(", ",", ")", false) << ".";
return out;
}
inline std::ostream &operator<<(std::ostream &out, External const &x) {
out << "#external " << x.atom << Detail::print_body(x.body);
return out;
}
inline std::ostream &operator<<(std::ostream &out, Edge const &x) {
out << "#edge (" << x.u << "," << x.v << ")" << Detail::print_body(x.body);
return out;
}
inline std::ostream &operator<<(std::ostream &out, Heuristic const &x) {
out << "#heuristic " << x.atom << Detail::print_body(x.body) << " [" << x.bias<< "@" << x.priority << "," << x.modifier << "]";
return out;
}
inline std::ostream &operator<<(std::ostream &out, ProjectAtom const &x) {
out << "#project " << x.atom << Detail::print_body(x.body);
return out;
}
inline std::ostream &operator<<(std::ostream &out, ProjectSignature const &x) {
out << "#project " << x.signature << ".";
return out;
}
inline std::ostream &operator<<(std::ostream &out, Statement const &x) {
out << x.data;
return out;
}
*/
////////////////////////////////////////////////////////////////////////////////////////////////////
}
}