/**
* Checks if a character is an hexadecimal digit
*
* @uses PMA_STR_numberInRangeInclusive()
* @uses ord()
* @param string character to check for
* @return boolean whether the character is an hexadecimal digit or not
*/
function PMA_STR_isHexDigit($c)
{
$ord_Aupper = 65;
//ord('A');
$ord_Fupper = 70;
//ord('F');
$ord_Alower = 97;
//ord('a');
$ord_Flower = 102;
//ord('f');
$ord_zero = 48;
//ord('0');
$ord_nine = 57;
//ord('9');
$ord_c = ord($c);
return PMA_STR_numberInRangeInclusive($ord_c, $ord_zero, $ord_nine) || PMA_STR_numberInRangeInclusive($ord_c, $ord_Aupper, $ord_Fupper) || PMA_STR_numberInRangeInclusive($ord_c, $ord_Alower, $ord_Flower);
}
/**
* Checks if a character is an accented character
*
* @note Presently this only works for some character sets. More work
* may be needed to fix it.
*
* @param string character to check for
*
* @return boolean whether the character is an upper alphabetic one or
* not
*
* @see PMA_STR_numberInRangeInclusive()
*/
function PMA_STR_isAccented($c)
{
$ord_min1 = 192;
//ord('A');
$ord_max1 = 214;
//ord('Z');
$ord_min2 = 216;
//ord('A');
$ord_max2 = 246;
//ord('Z');
$ord_min3 = 248;
//ord('A');
$ord_max3 = 255;
//ord('Z');
$ord_c = ord($c);
return PMA_STR_numberInRangeInclusive($ord_c, $ord_min1, $ord_max1) || PMA_STR_numberInRangeInclusive($ord_c, $ord_min2, $ord_max2) || PMA_STR_numberInRangeInclusive($ord_c, $ord_min2, $ord_max2);
}
