| static private IsEmpty ( String charClass ) : bool | ||
| charClass | String | |
| return | bool | |
internal RegexNode ReduceSet()
{
if (RegexCharClass.IsEmpty(this._str))
{
this._type = 0x16;
this._str = null;
}
else if (RegexCharClass.IsSingleton(this._str))
{
this._ch = RegexCharClass.SingletonChar(this._str);
this._str = null;
this._type += -2;
}
else if (RegexCharClass.IsSingletonInverse(this._str))
{
this._ch = RegexCharClass.SingletonChar(this._str);
this._str = null;
this._type += -1;
}
return(this);
}
/*
* ReduceSet:
*
* Simple optimization. If a set is a singleton, an inverse singleton,
* or empty, it's transformed accordingly.
*/
internal RegexNode ReduceSet()
{
// Extract empty-set, one and not-one case as special
if (RegexCharClass.IsEmpty(_str))
{
_type = Nothing;
_str = null;
}
else if (RegexCharClass.IsSingleton(_str))
{
_ch = RegexCharClass.SingletonChar(_str);
_str = null;
_type += (One - Set);
}
else if (RegexCharClass.IsSingletonInverse(_str))
{
_ch = RegexCharClass.SingletonChar(_str);
_str = null;
_type += (Notone - Set);
}
return(this);
}
/// <summary>
/// Simple optimization. If a set is a singleton, an inverse singleton,
/// or empty, it's transformed accordingly.
/// </summary>
private RegexNode ReduceSet()
{
// Extract empty-set, one and not-one case as special
if (RegexCharClass.IsEmpty(Str))
{
NType = Nothing;
Str = null;
}
else if (RegexCharClass.IsSingleton(Str))
{
Ch = RegexCharClass.SingletonChar(Str);
Str = null;
NType += (One - Set);
}
else if (RegexCharClass.IsSingletonInverse(Str))
{
Ch = RegexCharClass.SingletonChar(Str);
Str = null;
NType += (Notone - Set);
}
return(this);
}