private static void CreateStringArray(StreamWriter sw)
{
sw.WriteLine("/// <summary>");
sw.WriteLine("/// Each string correponds to an equivalence class of characters when case is ignored.");
sw.WriteLine("/// </summary>");
sw.WriteLine("public static string[] ignorecase = new string[]{");
CharSetSolver solver = new CharSetSolver();
Dictionary <char, BDD> ignoreCase = ComputeIgnoreCaseDistionary(solver);
HashSet <BDD> done = new HashSet <BDD>();
foreach (var kv in ignoreCase)
{
if (done.Add(kv.Value))
{
var ranges = solver.ToRanges(kv.Value);
List <char> s = new List <char>();
for (int i = 0; i < ranges.Length; i++)
{
var l = (int)ranges[i].Item1;
var h = (int)ranges[i].Item2;
for (int j = l; j <= h; j++)
{
s.Add((char)j);
}
}
var str = StringUtility.Escape(new String(s.ToArray()));
sw.WriteLine(@"{0},", str);
}
}
sw.WriteLine("};"); //end of array
}
private static string ToCharacterClassInterval(uint m, uint n)
{
if (m == 0 && n == 0xFFFF)
{
return(".");
}
if (m == n)
{
return(StringUtility.Escape((char)m));
}
string res = StringUtility.Escape((char)m);
if (n > m + 1)
{
res += "-";
}
res += StringUtility.Escape((char)n);
return(res);
}
internal static string ToRegexCharSet(BDD label, IUnicodeCategoryTheory <BDD> categorizer, CharSetSolver solver)
{
if (categorizer.CategoryCondition(8) == label)
{
return(@"\d");
}
if (solver.MkNot(categorizer.CategoryCondition(8)) == label)
{
return(@"\D");
}
if (categorizer.WordLetterCondition == label)
{
return(@"\w");
}
if (solver.MkNot(categorizer.WordLetterCondition) == label)
{
return(@"\W");
}
if (categorizer.WhiteSpaceCondition == label)
{
return(@"\s");
}
if (solver.MkNot(categorizer.WhiteSpaceCondition) == label)
{
return(@"\S");
}
for (int i = 0; i < categorizer.UnicodeCategoryStandardAbbreviations.Length; i++)
{
if (categorizer.CategoryCondition(i) == label)
{
return(@"\P{" + categorizer.UnicodeCategoryStandardAbbreviations[i] + "}");
}
}
var ranges = solver.ToRanges(label);
if (ranges.Length == 1 && ranges[0].Item1 == ranges[0].Item2)
{
return(StringUtility.Escape((char)ranges[0].Item1));
}
var res = new StringBuilder("[");
for (int i = 0; i < ranges.Length; i++)
{
var range = ranges[i];
if (range.Item1 == range.Item2)
{
res.Append(StringUtility.EscapeWithNumericSpace((char)range.Item1));
}
else if (range.Item1 == range.Item2 - 1)
{
res.Append(StringUtility.EscapeWithNumericSpace((char)range.Item1));
res.Append(StringUtility.EscapeWithNumericSpace((char)range.Item2));
}
else
{
res.Append(StringUtility.EscapeWithNumericSpace((char)range.Item1));
res.Append("-");
res.Append(StringUtility.EscapeWithNumericSpace((char)range.Item2));
}
}
res.Append("]");
return(res.ToString());
}
private static Dictionary <char, BDD> ComputeIgnoreCaseDistionary(CharSetSolver solver)
{
var ignoreCase = new Dictionary <char, BDD>();
for (uint i = 0; i <= 0xFFFF; i++)
{
char c = (char)i;
char cU = char.ToUpper(c); // (char.IsLetter(char.ToUpper(c)) ? char.ToUpper(c) : c);
char cL = char.ToLower(c); // (char.IsLetter(char.ToLower(c)) ? char.ToLower(c) : c);
if (c != cU || c != cL || cU != cL)
{
//make sure that the regex engine considers c as being equivalent to cU and cL, else ignore c
//in some cases c != cU but the regex engine does not consider the chacarters equivalent wrt the ignore-case option.
//These characters are:
//c=\xB5,cU=\u039C
//c=\u0131,cU=I
//c=\u017F,cU=S
//c=\u0345,cU=\u0399
//c=\u03C2,cU=\u03A3
//c=\u03D0,cU=\u0392
//c=\u03D1,cU=\u0398
//c=\u03D5,cU=\u03A6
//c=\u03D6,cU=\u03A0
//c=\u03F0,cU=\u039A
//c=\u03F1,cU=\u03A1
//c=\u03F5,cU=\u0395
//c=\u1E9B,cU=\u1E60
//c=\u1FBE,cU=\u0399
if (System.Text.RegularExpressions.Regex.IsMatch(cU.ToString() + cL.ToString(), "^(?i:" + StringUtility.Escape(c) + ")+$"))
{
BDD equiv = solver.False;
if (ignoreCase.ContainsKey(c))
{
equiv = equiv | ignoreCase[c];
}
if (ignoreCase.ContainsKey(cU))
{
equiv = equiv | ignoreCase[cU];
}
if (ignoreCase.ContainsKey(cL))
{
equiv = equiv | ignoreCase[cL];
}
equiv = equiv | solver.MkCharSetFromRange(c, c) | solver.MkCharSetFromRange(cU, cU) | solver.MkCharSetFromRange(cL, cL);
foreach (char d in solver.GenerateAllCharacters(equiv))
{
ignoreCase[d] = equiv;
}
}
//else
//{
// outp += "c=" + StringUtility.Escape(c) + "," + "cU=" + StringUtility.Escape(cU);
// Console.WriteLine("c=" + StringUtility.Escape(c) + "," + "cL=" + StringUtility.Escape(cL) + "," + "cU=" + StringUtility.Escape(cU));
//}
}
}
return(ignoreCase);
}