/// <summary>
/// Initializes a new instance of the <see cref = "RegExp" /> class from a string.
/// </summary>
/// <param name = "s">A string with the regular expression.</param>
/// <param name = "syntaxFlags">Boolean 'or' of optional syntax constructs to be enabled.</param>
public RegExp(string s, RegExpSyntaxOptions syntaxFlags)
{
this.b = s;
this.flags = syntaxFlags;
RegExp e;
if (s.Length == 0)
{
e = RegExp.MakeString(string.Empty);
}
else
{
e = this.ParseUnionExp();
if (this.pos < b.Length)
{
throw new ArgumentException("end-of-string expected at position " + this.pos);
}
}
this.kind = e.kind;
this.exp1 = e.exp1;
this.exp2 = e.exp2;
this.s = e.s;
this.c = e.c;
this.min = e.min;
this.max = e.max;
this.digits = e.digits;
this.from = e.from;
this.to = e.to;
this.b = null;
}
/// <summary>
/// Initializes a new instance of the <see cref = "RegExp" /> class from a string.
/// </summary>
/// <param name = "s">A string with the regular expression.</param>
/// <param name = "syntaxFlags">Boolean 'or' of optional syntax constructs to be enabled.</param>
internal RegExp(string s, RegExpSyntaxOptions syntaxFlags)
{
this.b = RegExp.ReplaceShorthandCharacterClasses(s);
this.flags = syntaxFlags;
RegExp e;
if (s.Length == 0)
{
e = RegExp.MakeString(string.Empty);
}
else
{
e = this.ParseUnionExp();
if (this.pos < this.b.Length)
{
throw new ArgumentException("end-of-string expected at position " + this.pos);
}
}
this.kind = e.kind;
this.exp1 = e.exp1;
this.exp2 = e.exp2;
this.s = e.s;
this.c = e.c;
this.min = e.min;
this.max = e.max;
this.digits = e.digits;
this.from = e.from;
this.to = e.to;
this.b = null;
}
/// <summary>
/// Initializes a new instance of the <see cref = "RegExp" /> class from a string.
/// </summary>
/// <param name = "s">A string with the regular expression.</param>
/// <param name = "anyCharAlphabet">A string with the regular expression.</param>
/// <param name = "syntaxFlags">Boolean 'or' of optional syntax constructs to be enabled.</param>
public RegExp(string s, string anyCharAlphabet, RegExpSyntaxOptions syntaxFlags)
{
this.b = s;
this.flags = syntaxFlags;
RegExp e;
if (anyCharAlphabet != null)
{
this.anyCharAlphabet = anyCharAlphabet;
}
if (s.Length == 0)
{
e = RegExp.MakeString(string.Empty);
}
else
{
e = this.ParseUnionExp();
if (this.pos < b.Length)
{
throw new ArgumentException("end-of-string expected at position " + this.pos);
}
}
this.kind = e.kind;
this.exp1 = e.exp1;
this.exp2 = e.exp2;
this.s = e.s;
this.c = e.c;
this.min = e.min;
this.max = e.max;
this.digits = e.digits;
this.from = e.from;
this.to = e.to;
this.b = null;
}
/// <summary>
/// Initializes a new instance of the <see cref = "RegExp" /> class from a string.
/// </summary>
/// <param name = "s">A string with the regular expression.</param>
/// <param name = "syntaxFlags">Boolean 'or' of optional syntax constructs to be enabled.</param>
public RegExp(string s, RegExpSyntaxOptions syntaxFlags)
{
this.b = s;
this.flags = syntaxFlags;
RegExp e;
if (s.Length == 0)
{
e = RegExp.MakeString(string.Empty);
}
else
{
e = this.ParseUnionExp();
if (this.pos < b.Length)
{
throw new ArgumentException("end-of-string expected at position " + this.pos);
}
}
this.Kind = e.Kind;
this.Expr1 = e.Expr1;
this.Expr2 = e.Expr2;
this.SourceRegExpr = e.SourceRegExpr;
this.Char = e.Char;
this.Min = e.Min;
this.Max = e.Max;
this.Digits = e.Digits;
this.FromChar = e.FromChar;
this.ToChar = e.ToChar;
this.b = null;
}
public RegExp(string s, RegExpSyntaxOptions syntaxFlags)
{
_B = s;
_Flags = syntaxFlags;
RegExp e;
if (s.Length == 0)
{
e = MakeString(string.Empty);
}
else
{
e = ParseUnionExp();
if (_Pos < _B.Length)
{
throw new ArgumentException("end-of-string expected at position " + _Pos);
}
}
_Kind = e._Kind;
_Exp1 = e._Exp1;
_Exp2 = e._Exp2;
_S = e._S;
_C = e._C;
_Min = e._Min;
_Max = e._Max;
_Digits = e._Digits;
_From = e._From;
_To = e._To;
_B = null;
}
private bool Check(RegExpSyntaxOptions flag)
{
return (flags & flag) != 0;
}
private bool Check(RegExpSyntaxOptions flag)
{
return((this.flags & flag) != 0);
}
private bool Check(RegExpSyntaxOptions flag) => (_Flags & flag) != 0;
