public string GeneratePredicate(BDD pred)
{
if (!pred.IsLeaf && pred.Ordinal > 31)
{
throw new AutomataException(AutomataExceptionKind.OrdinalIsTooLarge);
}
string res;
if (!predicate_cache.TryGetValue(pred, out res))
{
if (OptimzeForASCIIinput)
{
var predascii = pred.And(ascii);
var predascii_ranges = predascii.ToRanges();
var prednonascii = pred.Diff(ascii);
if (prednonascii.IsEmpty)
{
res = RangesToCode(predascii_ranges);
}
else
{
var asciiCase = RangesToCode(predascii_ranges);
var nonasciiCase = GeneratePredicateHelper(prednonascii);
res = string.Format("(x <= 0x7F ? {0} : {1})", asciiCase, nonasciiCase);
}
}
else
{
res = GeneratePredicateHelper(pred);
}
predicate_cache[pred] = res;
}
return(res);
}
/// <summary>
/// For all letters in the bdd add their lower and upper case equivalents.
/// </summary>
public BDD Apply(BDD bdd)
{
if (domain.And(bdd).IsEmpty)
return bdd;
else
return bdd.And(IgnoreCaseRel).ShiftRight(16);
}
public string GeneratePredicate(BDD pred)
{
if (!pred.IsLeaf && pred.Ordinal > 31)
throw new AutomataException(AutomataExceptionKind.OrdinalIsTooLarge);
string res;
if (!predicate_cache.TryGetValue(pred, out res))
{
if (OptimzeForASCIIinput)
{
var predascii = pred.And(ascii);
var predascii_ranges = predascii.ToRanges();
var prednonascii = pred.Diff(ascii);
if (prednonascii.IsEmpty)
{
res = RangesToCode(predascii_ranges);
}
else
{
var asciiCase = RangesToCode(predascii_ranges);
var nonasciiCase = GeneratePredicateHelper(prednonascii);
res = string.Format("(c <= 0x7F ? {0} : {1})", asciiCase, nonasciiCase);
}
}
else
res = GeneratePredicateHelper(pred);
predicate_cache[pred] = res;
}
return res;
}
/// <summary>
/// For all letters in the bdd add their lower and upper case equivalents.
/// </summary>
public BDD Apply(BDD bdd)
{
if (domain.And(bdd).IsEmpty)
{
return(bdd);
}
else
{
return(bdd.And(IgnoreCaseRel).ShiftRight(16));
}
}
public bool IsInDomain(char c)
{
BDD c_bdd = solver.MkCharConstraint(c);
if (c_bdd.And(domain).IsEmpty)
{
return(false);
}
else
{
return(true);
}
}
/// <summary>
/// For all letters in the bdd add their lower and upper case equivalents.
/// </summary>
public BDD Apply(BDD bdd)
{
if (domain.And(bdd).IsEmpty)
{
return(bdd);
}
else
{
var ignorecase = bdd.And(IgnoreCaseRel).ShiftRight(16);
var res = ignorecase.Or(bdd);
return(res);
}
}
