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📄 AlphaValue.php(793 B)
📄 Background.php(3.24 KB)
📄 BackgroundPosition.php(4.07 KB)
📄 Border.php(1.55 KB)
📄 Color.php(4.57 KB)
📄 Composite.php(1.3 KB)
📄 DenyElementDecorator.php(1.05 KB)
📄 Filter.php(2.27 KB)
📄 Font.php(6.45 KB)
📄 FontFamily.php(9.19 KB)
📄 Ident.php(724 B)
📄 ImportantDecorator.php(1.56 KB)
📄 Length.php(1.85 KB)
📄 ListStyle.php(2.84 KB)
📄 Multiple.php(2.04 KB)
📄 Number.php(2.23 KB)
📄 Percentage.php(1.25 KB)
📄 TextDecoration.php(1.13 KB)
📄 URI.php(2.51 KB)

Editing: Number.php

<?php

/**
 * Validates a number as defined by the CSS spec.
 */
class HTMLPurifier_AttrDef_CSS_Number extends HTMLPurifier_AttrDef
{

/**
     * Indicates whether or not only positive values are allowed.
     * @type bool
     */
    protected $non_negative = false;

/**
     * @param bool $non_negative indicates whether negatives are forbidden
     */
    public function __construct($non_negative = false)
    {
        $this->non_negative = $non_negative;
    }

/**
     * @param string $number
     * @param HTMLPurifier_Config $config
     * @param HTMLPurifier_Context $context
     * @return string|bool
     * @warning Some contexts do not pass $config, $context. These
     *          variables should not be used without checking HTMLPurifier_Length
     */
    public function validate($number, $config, $context)
    {
        $number = $this->parseCDATA($number);

if ($number === '') {
            return false;
        }
        if ($number === '0') {
            return '0';
        }

$sign = '';
        switch ($number[0]) {
            case '-':
                if ($this->non_negative) {
                    return false;
                }
                $sign = '-';
            case '+':
                $number = substr($number, 1);
        }

if (ctype_digit($number)) {
            $number = ltrim($number, '0');
            return $number ? $sign . $number : '0';
        }

// Period is the only non-numeric character allowed
        if (strpos($number, '.') === false) {
            return false;
        }

list($left, $right) = explode('.', $number, 2);

if ($left === '' && $right === '') {
            return false;
        }
        if ($left !== '' && !ctype_digit($left)) {
            return false;
        }

// Remove leading zeros until positive number or a zero stays left
        if (ltrim($left, '0') != '') {
            $left = ltrim($left, '0');
        } else {
            $left = '0';
        }

$right = rtrim($right, '0');

if ($right === '') {
            return $left ? $sign . $left : '0';
        } elseif (!ctype_digit($right)) {
            return false;
        }
        return $sign . $left . '.' . $right;
    }
}

// vim: et sw=4 sts=4

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