mirror of
https://github.com/moodle/moodle.git
synced 2025-07-26 08:50:30 +02:00
Prior to this change, all the line endings in the imported HTMLPurifier library were using CRLF (\r\n aka Windows style), but the HTMLPurifier source and also the downloadable artefacts use LF (\n aka Linux style) as line endings. This has been the case since510d190382
when with the commit "MDL-38672 import HTML Purifier 4.5.0" all line endings were changed from LF to CRLF. There was no comment in the commit on why this change was done. As the original source uses LF, this commit partly reverts510d190382
and goes back to LF as line endings. Signed-off-by: Daniel Ziegenberg <daniel@ziegenberg.at>
92 lines
2.5 KiB
PHP
92 lines
2.5 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Validates an integer.
|
|
* @note While this class was modeled off the CSS definition, no currently
|
|
* allowed CSS uses this type. The properties that do are: widows,
|
|
* orphans, z-index, counter-increment, counter-reset. Some of the
|
|
* HTML attributes, however, find use for a non-negative version of this.
|
|
*/
|
|
class HTMLPurifier_AttrDef_Integer extends HTMLPurifier_AttrDef
|
|
{
|
|
|
|
/**
|
|
* Whether or not negative values are allowed.
|
|
* @type bool
|
|
*/
|
|
protected $negative = true;
|
|
|
|
/**
|
|
* Whether or not zero is allowed.
|
|
* @type bool
|
|
*/
|
|
protected $zero = true;
|
|
|
|
/**
|
|
* Whether or not positive values are allowed.
|
|
* @type bool
|
|
*/
|
|
protected $positive = true;
|
|
|
|
/**
|
|
* @param $negative Bool indicating whether or not negative values are allowed
|
|
* @param $zero Bool indicating whether or not zero is allowed
|
|
* @param $positive Bool indicating whether or not positive values are allowed
|
|
*/
|
|
public function __construct($negative = true, $zero = true, $positive = true)
|
|
{
|
|
$this->negative = $negative;
|
|
$this->zero = $zero;
|
|
$this->positive = $positive;
|
|
}
|
|
|
|
/**
|
|
* @param string $integer
|
|
* @param HTMLPurifier_Config $config
|
|
* @param HTMLPurifier_Context $context
|
|
* @return bool|string
|
|
*/
|
|
public function validate($integer, $config, $context)
|
|
{
|
|
$integer = $this->parseCDATA($integer);
|
|
if ($integer === '') {
|
|
return false;
|
|
}
|
|
|
|
// we could possibly simply typecast it to integer, but there are
|
|
// certain fringe cases that must not return an integer.
|
|
|
|
// clip leading sign
|
|
if ($this->negative && $integer[0] === '-') {
|
|
$digits = substr($integer, 1);
|
|
if ($digits === '0') {
|
|
$integer = '0';
|
|
} // rm minus sign for zero
|
|
} elseif ($this->positive && $integer[0] === '+') {
|
|
$digits = $integer = substr($integer, 1); // rm unnecessary plus
|
|
} else {
|
|
$digits = $integer;
|
|
}
|
|
|
|
// test if it's numeric
|
|
if (!ctype_digit($digits)) {
|
|
return false;
|
|
}
|
|
|
|
// perform scope tests
|
|
if (!$this->zero && $integer == 0) {
|
|
return false;
|
|
}
|
|
if (!$this->positive && $integer > 0) {
|
|
return false;
|
|
}
|
|
if (!$this->negative && $integer < 0) {
|
|
return false;
|
|
}
|
|
|
|
return $integer;
|
|
}
|
|
}
|
|
|
|
// vim: et sw=4 sts=4
|