/phpmyadmin/phpMyAdmin-3.5.4-rc1-all-languages/libraries/string_type_native.lib.php
PHP | 125 lines | 55 code | 13 blank | 57 comment | 9 complexity | 4df8c104640e70b9321e05c13f46dfba MD5 | raw file
Possible License(s): GPL-2.0, Apache-2.0
- <?php
- /* vim: set expandtab sw=4 ts=4 sts=4: */
- /**
- * Specialized String Functions for phpMyAdmin
- *
- * Copyright 2002 Robin Johnson <robbat2@users.sourceforge.net>
- * http://www.orbis-terrarum.net/?l=people.robbat2
- *
- * Defines a set of function callbacks that have a pure C version available if
- * the "ctype" extension is available, but otherwise have PHP versions to use
- * (that are slower).
- *
- * The SQL Parser code relies heavily on these functions.
- *
- * @package PhpMyAdmin-StringType-Native
- */
- /**
- * Checks if a character is an alphanumeric one
- *
- * @param string character to check for
- * @return boolean whether the character is an alphanumeric one or not
- */
- function PMA_STR_isAlnum($c)
- {
- return (PMA_STR_isUpper($c) || PMA_STR_isLower($c) || PMA_STR_isDigit($c));
- } // end of the "PMA_STR_isAlnum()" function
- /**
- * Checks if a character is an alphabetic one
- *
- * @param string character to check for
- * @return boolean whether the character is an alphabetic one or not
- */
- function PMA_STR_isAlpha($c)
- {
- return (PMA_STR_isUpper($c) || PMA_STR_isLower($c));
- } // end of the "PMA_STR_isAlpha()" function
- /**
- * Checks if a character is a digit
- *
- * @param string character to check for
- * @return boolean whether the character is a digit or not
- */
- function PMA_STR_isDigit($c)
- {
- $ord_zero = 48; //ord('0');
- $ord_nine = 57; //ord('9');
- $ord_c = ord($c);
- return PMA_STR_numberInRangeInclusive($ord_c, $ord_zero, $ord_nine);
- } // end of the "PMA_STR_isDigit()" function
- /**
- * Checks if a character is an upper alphabetic one
- *
- * @param string character to check for
- * @return boolean whether the character is an upper alphabetic one or not
- */
- function PMA_STR_isUpper($c)
- {
- $ord_zero = 65; //ord('A');
- $ord_nine = 90; //ord('Z');
- $ord_c = ord($c);
- return PMA_STR_numberInRangeInclusive($ord_c, $ord_zero, $ord_nine);
- } // end of the "PMA_STR_isUpper()" function
- /**
- * Checks if a character is a lower alphabetic one
- *
- * @param string character to check for
- * @return boolean whether the character is a lower alphabetic one or not
- */
- function PMA_STR_isLower($c)
- {
- $ord_zero = 97; //ord('a');
- $ord_nine = 122; //ord('z');
- $ord_c = ord($c);
- return PMA_STR_numberInRangeInclusive($ord_c, $ord_zero, $ord_nine);
- } // end of the "PMA_STR_isLower()" function
- /**
- * Checks if a character is a space one
- *
- * @param string character to check for
- * @return boolean whether the character is a space one or not
- */
- function PMA_STR_isSpace($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 == $ord_NOBR
- || PMA_STR_numberInRangeInclusive($ord_c, $ord_tab, $ord_CR));
- } // end of the "PMA_STR_isSpace()" function
- /**
- * Checks if a character is an hexadecimal digit
- *
- * @param string character to check for
- * @return boolean whether the character is an hexadecimal digit or not
- */
- function PMA_STR_isHexDigit($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));
- } // end of the "PMA_STR_isHexDigit()" function
- ?>