public string Generate()
{
if (subClass != null)
{
subClass.PrepareGeneration();
for (int i = 0; i < table.Length; i++)
{
if (subClass.table [i] != 0)
{
table [i] = subClass.table [i];
}
}
}
PrepareGeneration();
var result = new StringBuilder();
result.Append('[');
if (negativeGroup)
{
result.Append('^');
}
bool hasAllPrintable = true;
for (int i = 0; i < table.Length; i++)
{
var ch = (char)i;
if (ch == ' ' || ch == '\t')
{
continue;
}
var cat = char.GetUnicodeCategory(ch);
if (cat == UnicodeCategory.Control || cat == UnicodeCategory.LineSeparator)
{
continue;
}
if (table [i] == 0)
{
hasAllPrintable = false;
}
}
if (hasAllPrintable)
{
for (int i = 0; i < table.Length; i++)
{
var ch = (char)i;
if (ch == ' ' || ch == '\t')
{
continue;
}
var cat = char.GetUnicodeCategory(ch);
if (cat == UnicodeCategory.Control || cat == UnicodeCategory.LineSeparator)
{
continue;
}
table [i] = 0;
}
result.Append("\\S");
}
if (HasRange('a', 'z') && HasRange('A', 'Z'))
{
RemoveRange('a', 'z');
RemoveRange('A', 'Z');
result.Append("\\w");
}
if (HasRange('0', '9'))
{
RemoveRange('0', '9');
result.Append("\\d");
}
if (Has(" \t\r\n"))
{
result.Append("\\s");
table [' '] = 0;
table ['\t'] = 0;
table ['\r'] = 0;
table ['\n'] = 0;
table ['\f'] = 0;
}
for (int i = 0; i < table.Length; i++)
{
int cur = table [i];
if (cur != 0)
{
AddChar(result, (char)i);
int j = i + 1;
for (; j < table.Length; j++)
{
if (table [j] == 0)
{
break;
}
}
if (j - i > 3)
{
result.Append("-");
AddChar(result, (char)(j - 1));
i = j - 1;
}
}
}
foreach (var grp in unicodeGroups)
{
result.Append("\\p{");
result.Append(grp);
result.Append("}");
}
result.Append(']');
return(result.ToString());
}