static public int findFirstNotOf(string s, e_CharGroup which_chars, int start_pos = 0)
{
if (start_pos >= s.Length)
{
return(NPOS);
}
for (int i = start_pos; i != s.Length; ++i)
{
if (!belongsTo(s[i], which_chars))
{
return(i);
}
}
return(NPOS);
}
static public string trimOffGivenChars(string s, e_CharGroup which_chars)
{
int start = 0;
while (belongsTo(s[start], which_chars) && start < s.Length - 1)
{
++start;
}
// Jesli caly string sklada sie z danych znakow, zwroc pusty string
if (start == s.Length - 1)
{
return(String.Empty);
}
int finish = s.Length - 1;
while (belongsTo(s[finish], which_chars) && finish > 0)
{
--finish;
}
return(s.Substring(start, finish - start + 1));
}