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Code Issues 15 Releases 21 Activity

Minor restructuring.

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This commit is contained in:
Patrick Lühne 2017-03-06 15:42:38 +01:00
parent 70cb79b233
commit 71e6e4107a
Signed by: patrick
GPG Key ID: 05F3611E97A70ABF
1 changed files with 20 additions and 24 deletions
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44
include/anthem/StatementVisitor.h
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@ -36,40 +36,32 @@ struct StatementVisitor
rule.head.data.accept(HeadLiteralCollectFunctionTermsVisitor(), rule.head, context);
// Print auxiliary variables replacing the head atom’s arguments
if (!context.headTerms.empty())
for (auto i = context.headTerms.cbegin(); i != context.headTerms.cend(); i++)
{
for (auto i = context.headTerms.cbegin(); i != context.headTerms.cend(); i++)
{
const auto &headTerm = **i;
const auto &headTerm = **i;
if (i != context.headTerms.cbegin())
outputStream << " " << Clingo::AST::BinaryOperator::And << " ";
if (i != context.headTerms.cbegin())
outputStream << " " << Clingo::AST::BinaryOperator::And << " ";
const auto variableName = std::string(AuxiliaryHeadVariablePrefix) + std::to_string(i - context.headTerms.cbegin() + 1);
const auto variableName = std::string(AuxiliaryHeadVariablePrefix) + std::to_string(i - context.headTerms.cbegin() + 1);
outputStream
<< output::Variable(variableName.c_str())
<< " " << output::Keyword("in") << " " << headTerm;
}
outputStream
<< output::Variable(variableName.c_str())
<< " " << output::Keyword("in") << " " << headTerm;
}
if (rule.body.empty() && context.headTerms.empty() && !context.isChoiceRule)
outputStream << Clingo::AST::Boolean({true});
else
// Print translated body literals
for (auto i = rule.body.cbegin(); i != rule.body.cend(); i++)
{
// Print translated body literals
for (auto i = rule.body.cbegin(); i != rule.body.cend(); i++)
{
const auto &bodyLiteral = *i;
const auto &bodyLiteral = *i;
if (!context.headTerms.empty() || i != rule.body.cbegin())
outputStream << " " << Clingo::AST::BinaryOperator::And << " ";
if (!context.headTerms.empty() || i != rule.body.cbegin())
outputStream << " " << Clingo::AST::BinaryOperator::And << " ";
if (bodyLiteral.sign != Clingo::AST::Sign::None)
throwErrorAtLocation(bodyLiteral.location, "only positive literals currently supported", context);
if (bodyLiteral.sign != Clingo::AST::Sign::None)
throwErrorAtLocation(bodyLiteral.location, "only positive literals currently supported", context);
bodyLiteral.data.accept(BodyLiteralPrintVisitor(), bodyLiteral, context);
}
bodyLiteral.data.accept(BodyLiteralPrintVisitor(), bodyLiteral, context);
}
// Handle choice rules
@ -89,6 +81,10 @@ struct StatementVisitor
outputStream << ")";
}
// Print “true” on the left side of the formula in case there is nothing else
if (rule.body.empty() && context.headTerms.empty() && !context.isChoiceRule)
outputStream << Clingo::AST::Boolean({true});
outputStream << " " << output::Operator("->") << " ";
// Print consequent of the implication