internal static Automaton MakeFractionDigits(int i)
{
return
(Automaton.Minimize(
new RegExp("[ \t\n\r]*[-+]?[0-9]+(\\.[0-9]{0," + i + "}0*)?[ \t\n\r]*")
.ToAutomaton()));
}
internal static Automaton MakeTotalDigits(int i)
{
return
(Automaton.Minimize(
new RegExp("[ \t\n\r]*[-+]?0*([0-9]{0," + i + "}|((([0-9]\\.*){0," + i + "})&@\\.@)0*)[ \t\n\r]*")
.ToAutomaton()));
}
internal static Automaton MakeMinInteger(String n)
{
int i = 0;
while (i + 1 < n.Length && n[i] == '0')
{
i++;
}
var b = new StringBuilder();
b.Append("0*");
MinInteger(n.Substring(i), 0, b);
b.Append("[0-9]*");
return(Automaton.Minimize((new RegExp(b.ToString())).ToAutomaton()));
}
internal static Automaton MakeMaxInteger(String n)
{
int i = 0;
while (i < n.Length && n[i] == '0')
{
i++;
}
var b = new StringBuilder();
b.Append("0*(0|");
if (i < n.Length)
{
b.Append("[0-9]{1," + (n.Length - i - 1) + "}|");
}
MaxInteger(n.Substring(i), 0, b);
b.Append(")");
return(Automaton.Minimize((new RegExp(b.ToString())).ToAutomaton()));
}
private Automaton ToAutomaton(
IDictionary <string, Automaton> automata,
IAutomatonProvider automatonProvider,
bool minimize)
{
IList <Automaton> list;
Automaton a = null;
switch (this.kind)
{
case Kind.RegexpUnion:
list = new List <Automaton>();
this.FindLeaves(this.exp1, Kind.RegexpUnion, list, automata, automatonProvider, minimize);
this.FindLeaves(this.exp2, Kind.RegexpUnion, list, automata, automatonProvider, minimize);
a = BasicOperations.Union(list);
a.Minimize();
break;
case Kind.RegexpConcatenation:
list = new List <Automaton>();
this.FindLeaves(this.exp1, Kind.RegexpConcatenation, list, automata, automatonProvider, minimize);
this.FindLeaves(this.exp2, Kind.RegexpConcatenation, list, automata, automatonProvider, minimize);
a = BasicOperations.Concatenate(list);
a.Minimize();
break;
case Kind.RegexpIntersection:
a = this.exp1.ToAutomaton(automata, automatonProvider, minimize)
.Intersection(this.exp2.ToAutomaton(automata, automatonProvider, minimize));
a.Minimize();
break;
case Kind.RegexpOptional:
a = this.exp1.ToAutomaton(automata, automatonProvider, minimize).Optional();
a.Minimize();
break;
case Kind.RegexpRepeat:
a = this.exp1.ToAutomaton(automata, automatonProvider, minimize).Repeat();
a.Minimize();
break;
case Kind.RegexpRepeatMin:
a = this.exp1.ToAutomaton(automata, automatonProvider, minimize).Repeat(this.min);
a.Minimize();
break;
case Kind.RegexpRepeatMinMax:
a = this.exp1.ToAutomaton(automata, automatonProvider, minimize).Repeat(this.min, this.max);
a.Minimize();
break;
case Kind.RegexpComplement:
a = this.exp1.ToAutomaton(automata, automatonProvider, minimize).Complement();
a.Minimize();
break;
case Kind.RegexpChar:
a = BasicAutomata.MakeChar(this.c);
break;
case Kind.RegexpCharRange:
a = BasicAutomata.MakeCharRange(this.@from, this.to);
break;
case Kind.RegexpAnyChar:
a = BasicAutomata.MakeAnyChar();
break;
case Kind.RegexpEmpty:
a = BasicAutomata.MakeEmpty();
break;
case Kind.RegexpString:
a = BasicAutomata.MakeString(this.s);
break;
case Kind.RegexpAnyString:
a = BasicAutomata.MakeAnyString();
break;
case Kind.RegexpAutomaton:
Automaton aa = null;
if (automata != null)
{
automata.TryGetValue(this.s, out aa);
}
if (aa == null && automatonProvider != null)
{
try
{
aa = automatonProvider.GetAutomaton(this.s);
}
catch (IOException e)
{
throw new ArgumentException(string.Empty, e);
}
}
if (aa == null)
{
throw new ArgumentException("'" + this.s + "' not found");
}
a = aa.Clone(); // Always clone here (ignore allowMutate).
break;
case Kind.RegexpInterval:
a = BasicAutomata.MakeInterval(this.min, this.max, this.digits);
break;
}
return(a);
}
internal static Automaton Minimize(Automaton a)
{
a.Minimize();
return(a);
}