Start supporting TPTP output

This commit is contained in:
Patrick Lühne 2020-02-02 20:27:30 +01:00
parent 5ad14f8deb
commit 0714bed2cc
Signed by: patrick
GPG Key ID: 05F3611E97A70ABF
4 changed files with 258 additions and 3 deletions

View File

@ -1,6 +1,7 @@
#![feature(trait_alias)]
pub mod error;
pub(crate) mod output;
pub mod translate;
pub use error::Error;

1
src/output.rs Normal file
View File

@ -0,0 +1 @@
pub(crate) mod tptp;

251
src/output/tptp.rs Normal file
View File

@ -0,0 +1,251 @@
pub(crate) struct VariableDeclarationDisplay<'a>
{
variable_declaration: &'a foliage::VariableDeclaration,
}
pub(crate) struct TermDisplay<'a>
{
term: &'a foliage::Term,
}
pub(crate) struct FormulaDisplay<'a>
{
formula: &'a foliage::Formula,
}
pub(crate) fn display_variable_declaration<'a>(variable_declaration: &'a foliage::VariableDeclaration)
-> VariableDeclarationDisplay<'a>
{
VariableDeclarationDisplay
{
variable_declaration,
}
}
pub(crate) fn display_term<'a>(term: &'a foliage::Term) -> TermDisplay<'a>
{
TermDisplay
{
term,
}
}
pub(crate) fn display_formula<'a>(formula: &'a foliage::Formula)
-> FormulaDisplay<'a>
{
FormulaDisplay
{
formula,
}
}
impl<'a> std::fmt::Debug for VariableDeclarationDisplay<'a>
{
fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result
{
write!(format, "{}", &self.variable_declaration.name)
}
}
impl<'a> std::fmt::Display for VariableDeclarationDisplay<'a>
{
fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result
{
write!(format, "{:?}", &self)
}
}
impl<'a> std::fmt::Debug for TermDisplay<'a>
{
fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result
{
match &self.term
{
foliage::Term::Boolean(true) => write!(format, "$true"),
foliage::Term::Boolean(false) => write!(format, "$false"),
foliage::Term::SpecialInteger(foliage::SpecialInteger::Infimum) => write!(format, "c__infimum__"),
foliage::Term::SpecialInteger(foliage::SpecialInteger::Supremum) => write!(format, "c__supremum__"),
foliage::Term::Integer(value) => match value.is_negative()
{
true => write!(format, "$uminus({})", -value),
false => write!(format, "{}", value),
},
foliage::Term::String(_) => panic!("strings not supported in TPTP"),
foliage::Term::Variable(variable) =>
write!(format, "{:?}", display_variable_declaration(&variable.declaration)),
foliage::Term::Function(function) =>
{
write!(format, "{}", function.declaration.name)?;
assert!(function.declaration.arity == function.arguments.len(),
"function has a different number of arguments than declared (expected {}, got {})",
function.declaration.arity, function.arguments.len());
if function.arguments.len() > 0
{
write!(format, "{}(", function.declaration.name)?;
let mut separator = "";
for argument in &function.arguments
{
write!(format, "{}{:?}", separator, display_term(&argument))?;
separator = ", ";
}
write!(format, ")")?;
}
Ok(())
},
foliage::Term::BinaryOperation(foliage::BinaryOperation{operator: foliage::BinaryOperator::Add, left, right})
=> write!(format, "$sum({:?}, {:?})", display_term(left), display_term(right)),
foliage::Term::BinaryOperation(foliage::BinaryOperation{operator: foliage::BinaryOperator::Subtract, left, right})
=> write!(format, "$difference({:?}, {:?})", display_term(left), display_term(right)),
foliage::Term::BinaryOperation(foliage::BinaryOperation{operator: foliage::BinaryOperator::Multiply, left, right})
=> write!(format, "$product({:?}, {:?})", display_term(left), display_term(right)),
foliage::Term::BinaryOperation(foliage::BinaryOperation{operator: foliage::BinaryOperator::Divide, ..})
=> panic!("division not supported with TPTP output"),
foliage::Term::BinaryOperation(foliage::BinaryOperation{operator: foliage::BinaryOperator::Modulo, ..})
=> panic!("modulo not supported with TPTP output"),
foliage::Term::BinaryOperation(foliage::BinaryOperation{operator: foliage::BinaryOperator::Exponentiate, ..})
=> panic!("exponentiation not supported with TPTP output"),
foliage::Term::UnaryOperation(foliage::UnaryOperation{operator: foliage::UnaryOperator::Negative, argument})
=> write!(format, "$uminus({:?})", display_term(argument)),
foliage::Term::UnaryOperation(foliage::UnaryOperation{operator: foliage::UnaryOperator::AbsoluteValue, ..})
=> panic!("absolute value not supported with TPTP output"),
}
}
}
impl<'term> std::fmt::Display for TermDisplay<'term>
{
fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result
{
write!(format, "{:?}", self)
}
}
impl<'formula> std::fmt::Debug for FormulaDisplay<'formula>
{
fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result
{
match &self.formula
{
foliage::Formula::Exists(exists) =>
{
write!(format, "?[")?;
let mut separator = "";
for parameter in exists.parameters.iter()
{
write!(format, "{}{:?}", separator, display_variable_declaration(parameter))?;
separator = ", "
}
write!(format, "]: {:?}", display_formula(&exists.argument))?;
},
foliage::Formula::ForAll(for_all) =>
{
write!(format, "![")?;
let mut separator = "";
for parameter in for_all.parameters.iter()
{
write!(format, "{}{:?}", separator, display_variable_declaration(parameter))?;
separator = ", "
}
write!(format, "]: {:?}", display_formula(&for_all.argument))?;
},
foliage::Formula::Not(argument) => write!(format, "~{:?}", display_formula(argument))?,
foliage::Formula::And(arguments) =>
{
write!(format, "(")?;
let mut separator = "";
assert!(!arguments.is_empty());
for argument in arguments
{
write!(format, "{}{:?}", separator, display_formula(argument))?;
separator = " & "
}
write!(format, ")")?;
},
foliage::Formula::Or(arguments) =>
{
write!(format, "(")?;
let mut separator = "";
assert!(!arguments.is_empty());
for argument in arguments
{
write!(format, "{}{:?}", separator, display_formula(argument))?;
separator = " | "
}
write!(format, ")")?;
},
foliage::Formula::Implies(foliage::Implies{antecedent, implication})
=> write!(format, "({:?} => {:?})", display_formula(antecedent), display_formula(implication))?,
foliage::Formula::IfAndOnlyIf(foliage::IfAndOnlyIf{left, right})
=> write!(format, "({:?} <=> {:?})", display_formula(left), display_formula(right))?,
foliage::Formula::Compare(foliage::Compare{operator: foliage::ComparisonOperator::Less, left, right})
=> write!(format, "$less({:?}, {:?})", display_term(left), display_term(right))?,
foliage::Formula::Compare(foliage::Compare{operator: foliage::ComparisonOperator::LessOrEqual, left, right})
=> write!(format, "$lesseq({:?}, {:?})", display_term(left), display_term(right))?,
foliage::Formula::Compare(foliage::Compare{operator: foliage::ComparisonOperator::Greater, left, right})
=> write!(format, "$greater({:?}, {:?})", display_term(left), display_term(right))?,
foliage::Formula::Compare(foliage::Compare{operator: foliage::ComparisonOperator::GreaterOrEqual, left, right})
=> write!(format, "$greatereq({:?}, {:?})", display_term(left), display_term(right))?,
foliage::Formula::Compare(foliage::Compare{operator: foliage::ComparisonOperator::Equal, left, right})
=> write!(format, "({:?} = {:?})", display_term(left), display_term(right))?,
foliage::Formula::Compare(foliage::Compare{operator: foliage::ComparisonOperator::NotEqual, left, right})
=> write!(format, "({:?} ~= {:?})", display_term(left), display_term(right))?,
foliage::Formula::Boolean(true) => write!(format, "$true")?,
foliage::Formula::Boolean(false) => write!(format, "$false")?,
foliage::Formula::Predicate(predicate) =>
{
write!(format, "{}", predicate.declaration.name)?;
if !predicate.arguments.is_empty()
{
write!(format, "(")?;
let mut separator = "";
for argument in &predicate.arguments
{
write!(format, "{}{:?}", separator, display_term(argument))?;
separator = ", "
}
write!(format, ")")?;
}
},
}
Ok(())
}
}
impl<'formula> std::fmt::Display for FormulaDisplay<'formula>
{
fn fmt(&self, format: &mut std::fmt::Formatter) -> std::fmt::Result
{
write!(format, "{:?}", self)
}
}

View File

@ -179,13 +179,15 @@ where
for (predicate_declaration, completed_definition) in completed_definitions
{
println!("completion({}/{}): {}.", predicate_declaration.name,
predicate_declaration.arity, completed_definition);
println!("tff(completion_{}_{}, axiom, {}).", predicate_declaration.name,
predicate_declaration.arity,
crate::output::tptp::display_formula(&completed_definition));
}
for integrity_constraint in integrity_constraints
{
println!("axiom: {}.", integrity_constraint);
println!("tff(integrity_constraint, axiom, {}).",
crate::output::tptp::display_formula(&integrity_constraint));
}
Ok(())