static int getType(int ch) 
{
        return ((ch & 0xFFFFFF80) == 0 ? ctype[ch] : 0);
}

 static boolean isAlnum(int ch) 
{
        return isType(ch, ALNUM);
}

 static boolean isAlpha(int ch) 
{
        return isType(ch, ALPHA);
}

 static boolean isAscii(int ch) 
{
        return ((ch & 0xFFFFFF80) == 0);
}

 static boolean isCntrl(int ch) 
{
        return isType(ch, CNTRL);
}

 static boolean isDigit(int ch) 
{
        return ((ch-'0')|('9'-ch))  >= 0;
}

 static boolean isGraph(int ch) 
{
        return isType(ch, GRAPH);
}

 static boolean isHexDigit(int ch) 
{
        return isType(ch, HEX);
}

 static boolean isLower(int ch) 
{
        return ((ch-'a')|('z'-ch))  >= 0;
}

 static boolean isOctDigit(int ch) 
{
        return ((ch-'0')|('7'-ch))  >= 0;
}

 static boolean isPrint(int ch) 
{
        return ((ch-0x20)|(0x7E-ch))  >= 0;
}

 static boolean isPunct(int ch) 
{
        return isType(ch, PUNCT);
}

 static boolean isSpace(int ch) 
{
        return isType(ch, SPACE);
}

 static boolean isType(int ch,
    int type) 
{
        return (getType(ch) & type) != 0;
}

 static boolean isUpper(int ch) 
{
        return ((ch-'A')|('Z'-ch))  >= 0;
}

 static boolean isWord(int ch) 
{
        return isType(ch, WORD);
}

 static int toDigit(int ch) 
{
        return (ctype[ch & 0x7F] & 0x3F);
}

 static int toLower(int ch) 
{
        return isUpper(ch) ? (ch + 0x20) : ch;
}

 static int toUpper(int ch) 
{
        return isLower(ch) ? (ch - 0x20) : ch;
}