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📄 Arborize.php(2.49 KB)
📄 AttrCollections.php(4.75 KB)
📁 AttrDef
📄 AttrDef.php(5.07 KB)
📁 AttrTransform
📄 AttrTransform.php(1.94 KB)
📄 AttrTypes.php(3.67 KB)
📄 AttrValidator.php(6.42 KB)
📄 Bootstrap.php(4.5 KB)
📄 CSSDefinition.php(19.13 KB)
📁 ChildDef
📄 ChildDef.php(1.52 KB)
📄 Config.php(30.96 KB)
📁 ConfigSchema
📄 ConfigSchema.php(5.76 KB)
📄 ContentSets.php(5.51 KB)
📄 Context.php(2.57 KB)
📄 Definition.php(1.33 KB)
📁 DefinitionCache
📄 DefinitionCache.php(3.82 KB)
📄 DefinitionCacheFactory.php(3.13 KB)
📄 Doctype.php(1.54 KB)
📄 DoctypeRegistry.php(4.13 KB)
📄 ElementDef.php(7.35 KB)
📄 Encoder.php(25.19 KB)
📁 EntityLookup
📄 EntityLookup.php(1.39 KB)
📄 EntityParser.php(9.75 KB)
📄 ErrorCollector.php(7.45 KB)
📄 ErrorStruct.php(1.85 KB)
📄 Exception.php(177 B)
📁 Filter
📄 Filter.php(1.59 KB)
📄 Generator.php(10.01 KB)
📄 HTMLDefinition.php(17.33 KB)
📁 HTMLModule
📄 HTMLModule.php(9.96 KB)
📄 HTMLModuleManager.php(15.57 KB)
📄 IDAccumulator.php(1.61 KB)
📁 Injector
📄 Injector.php(8.79 KB)
📁 Language
📄 Language.php(5.92 KB)
📄 LanguageFactory.php(6.46 KB)
📄 Length.php(3.8 KB)
📁 Lexer
📄 Lexer.php(13.22 KB)
📁 Node
📄 Node.php(1.25 KB)
📄 PercentEncoder.php(3.48 KB)
📁 Printer
📄 Printer.php(5.76 KB)
📄 PropertyList.php(2.72 KB)
📄 PropertyListIterator.php(894 B)
📄 Queue.php(1.51 KB)
📁 Strategy
📄 Strategy.php(762 B)
📄 StringHash.php(1.07 KB)
📄 StringHashParser.php(3.56 KB)
📁 TagTransform
📄 TagTransform.php(1.07 KB)
📁 Token
📄 Token.php(2.17 KB)
📄 TokenFactory.php(3.03 KB)
📄 URI.php(10.35 KB)
📄 URIDefinition.php(3.35 KB)
📁 URIFilter
📄 URIFilter.php(2.31 KB)
📄 URIParser.php(2.24 KB)
📁 URIScheme
📄 URIScheme.php(3.4 KB)
📄 URISchemeRegistry.php(2.35 KB)
📄 UnitConverter.php(9.89 KB)
📁 VarParser
📄 VarParser.php(5.85 KB)
📄 VarParserException.php(157 B)
📄 Zipper.php(4.34 KB)

Editing: Length.php

<?php

/**
 * Represents a measurable length, with a string numeric magnitude
 * and a unit. This object is immutable.
 */
class HTMLPurifier_Length
{

/**
     * String numeric magnitude.
     * @type string
     */
    protected $n;

/**
     * String unit. False is permitted if $n = 0.
     * @type string|bool
     */
    protected $unit;

/**
     * Whether or not this length is valid. Null if not calculated yet.
     * @type bool
     */
    protected $isValid;

/**
     * Array Lookup array of units recognized by CSS 3
     * @type array
     */
    protected static $allowedUnits = array(
        'em' => true, 'ex' => true, 'px' => true, 'in' => true,
        'cm' => true, 'mm' => true, 'pt' => true, 'pc' => true,
        'ch' => true, 'rem' => true, 'vw' => true, 'vh' => true,
        'vmin' => true, 'vmax' => true
    );

/**
     * @param string $n Magnitude
     * @param bool|string $u Unit
     */
    public function __construct($n = '0', $u = false)
    {
        $this->n = (string) $n;
        $this->unit = $u !== false ? (string) $u : false;
    }

/**
     * @param string $s Unit string, like '2em' or '3.4in'
     * @return HTMLPurifier_Length
     * @warning Does not perform validation.
     */
    public static function make($s)
    {
        if ($s instanceof HTMLPurifier_Length) {
            return $s;
        }
        $n_length = strspn($s, '1234567890.+-');
        $n = substr($s, 0, $n_length);
        $unit = substr($s, $n_length);
        if ($unit === '') {
            $unit = false;
        }
        return new HTMLPurifier_Length($n, $unit);
    }

/**
     * Validates the number and unit.
     * @return bool
     */
    protected function validate()
    {
        // Special case:
        if ($this->n === '+0' || $this->n === '-0') {
            $this->n = '0';
        }
        if ($this->n === '0' && $this->unit === false) {
            return true;
        }
        if ($this->unit === false || !ctype_lower($this->unit)) {
            $this->unit = strtolower($this->unit);
        }
        if (!isset(HTMLPurifier_Length::$allowedUnits[$this->unit])) {
            return false;
        }
        // Hack:
        $def = new HTMLPurifier_AttrDef_CSS_Number();
        $result = $def->validate($this->n, false, false);
        if ($result === false) {
            return false;
        }
        $this->n = $result;
        return true;
    }

/**
     * Returns string representation of number.
     * @return string
     */
    public function toString()
    {
        if (!$this->isValid()) {
            return false;
        }
        return $this->n . $this->unit;
    }

/**
     * Retrieves string numeric magnitude.
     * @return string
     */
    public function getN()
    {
        return $this->n;
    }

/**
     * Retrieves string unit.
     * @return string
     */
    public function getUnit()
    {
        return $this->unit;
    }

/**
     * Returns true if this length unit is valid.
     * @return bool
     */
    public function isValid()
    {
        if ($this->isValid === null) {
            $this->isValid = $this->validate();
        }
        return $this->isValid;
    }

/**
     * Compares two lengths, and returns 1 if greater, -1 if less and 0 if equal.
     * @param HTMLPurifier_Length $l
     * @return int
     * @warning If both values are too large or small, this calculation will
     *          not work properly
     */
    public function compareTo($l)
    {
        if ($l === false) {
            return false;
        }
        if ($l->unit !== $this->unit) {
            $converter = new HTMLPurifier_UnitConverter();
            $l = $converter->convert($l, $this->unit);
            if ($l === false) {
                return false;
            }
        }
        return $this->n - $l->n;
    }
}

// vim: et sw=4 sts=4

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Editing: Length.php

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