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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Implements PMA_StringByte interface using native PHP functions.
*
* @package PhpMyAdmin-String
* @subpackage Native
*/
if (! defined('PHPMYADMIN')) {
exit;
}
require_once 'libraries/StringAbstractType.class.php';
/**
* Implements PMA_StringByte interface using native PHP functions.
*
* @package PhpMyAdmin-String
* @subpackage Native
* @todo May be join this class with PMA_StringNative class
*/
class PMA_StringNativeType extends PMA_StringAbstractType
{
/**
* Checks if a character is an alphanumeric one
*
* @param string $c character to check for
*
* @return boolean whether the character is an alphanumeric one or not
*/
public function isAlnum($c)
{
return ($this->isAlpha($c) || $this->isDigit($c));
} // end of the "isAlnum()" function
/**
* Checks if a character is an alphabetic one
*
* @param string $c character to check for
*
* @return boolean whether the character is an alphabetic one or not
*/
public function isAlpha($c)
{
return ($this->isUpper($c) || $this->isLower($c));
} // end of the "isAlpha()" function
/**
* Checks if a character is a digit
*
* @param string $c character to check for
*
* @return boolean whether the character is a digit or not
*/
public function isDigit($c)
{
$ord_zero = 48; //ord('0');
$ord_nine = 57; //ord('9');
$ord_c = ord($c);
return $this->numberInRangeInclusive($ord_c, $ord_zero, $ord_nine);
} // end of the "isDigit()" function
/**
* Checks if a character is an upper alphabetic one
*
* @param string $c character to check for
*
* @return boolean whether the character is an upper alphabetic one or not
*/
public function isUpper($c)
{
$ord_A = 65; //ord('A');
$ord_Z = 90; //ord('Z');
$ord_c = ord($c);
return $this->numberInRangeInclusive($ord_c, $ord_A, $ord_Z);
} // end of the "isUpper()" function
/**
* Checks if a character is a lower alphabetic one
*
* @param string $c character to check for
*
* @return boolean whether the character is a lower alphabetic one or not
*/
public function isLower($c)
{
$ord_a = 97; //ord('a');
$ord_z = 122; //ord('z');
$ord_c = ord($c);
return $this->numberInRangeInclusive($ord_c, $ord_a, $ord_z);
} // end of the "isLower()" function
/**
* Checks if a character is a space one
*
* @param string $c character to check for
*
* @return boolean whether the character is a space one or not
*/
public function isSpace($c)
{
$ord_space = 32; //ord(' ')
$ord_tab = 9; //ord('\t')
$ord_CR = 13; //ord('\n')
$ord_NOBR = 160; //ord('U+00A0);
$ord_c = ord($c);
return ($ord_c == $ord_space
|| $ord_c == $ord_NOBR
|| $this->numberInRangeInclusive($ord_c, $ord_tab, $ord_CR));
} // end of the "isSpace()" function
/**
* Checks if a character is an hexadecimal digit
*
* @param string $c character to check for
*
* @return boolean whether the character is an hexadecimal digit or not
*/
public function isHexDigit($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 ($this->numberInRangeInclusive($ord_c, $ord_zero, $ord_nine)
|| $this->numberInRangeInclusive($ord_c, $ord_Aupper, $ord_Fupper)
|| $this->numberInRangeInclusive($ord_c, $ord_Alower, $ord_Flower));
} // end of the "isHexDigit()" function
}