FM / HTMLPurifier

/var/www/vhosts/ihelp.ro/httpdocs/vendor/ezyang/htmlpurifier/library/HTMLPurifier/

/var/www/vhosts/ihelp.ro/httpdocs/vendor/ezyang/htmlpurifier/library/HTMLPurifier

Name	Size	Mode	Actions
AttrDef/	-	0755	rm
AttrTransform/	-	0755	rm
ChildDef/	-	0755	rm
ConfigSchema/	-	0755	rm
DefinitionCache/	-	0755	rm
EntityLookup/	-	0755	rm
Filter/	-	0755	rm
HTMLModule/	-	0755	rm
Injector/	-	0755	rm
Language/	-	0755	rm
Lexer/	-	0755	rm
Node/	-	0755	rm
Printer/	-	0755	rm
Strategy/	-	0755	rm
TagTransform/	-	0755	rm
Token/	-	0755	rm
URIFilter/	-	0755	rm
URIScheme/	-	0755	rm
VarParser/	-	0755	rm
Arborize.php	2550	0644	edit dl rm
AttrCollections.php	4862	0644	edit dl rm
AttrDef.php	5195	0644	edit dl rm
AttrTransform.php	1989	0644	edit dl rm
AttrTypes.php	3758	0644	edit dl rm
AttrValidator.php	6572	0644	edit dl rm
Bootstrap.php	4613	0644	edit dl rm
ChildDef.php	1559	0644	edit dl rm
Config.php	31701	0644	edit dl rm
ConfigSchema.php	5903	0644	edit dl rm
ContentSets.php	5640	0644	edit dl rm
Context.php	2634	0644	edit dl rm
CSSDefinition.php	19593	0644	edit dl rm
Definition.php	1361	0644	edit dl rm
DefinitionCache.php	3913	0644	edit dl rm
DefinitionCacheFactory.php	3201	0644	edit dl rm
Doctype.php	1582	0644	edit dl rm
DoctypeRegistry.php	4224	0644	edit dl rm
ElementDef.php	7531	0644	edit dl rm
Encoder.php	25793	0644	edit dl rm
EntityLookup.php	1426	0644	edit dl rm
EntityParser.php	9980	0644	edit dl rm
ErrorCollector.php	7625	0644	edit dl rm
ErrorStruct.php	1893	0644	edit dl rm
Exception.php	177	0644	edit dl rm
Filter.php	1625	0644	edit dl rm
Generator.php	10251	0644	edit dl rm
HTMLDefinition.php	17747	0644	edit dl rm
HTMLModule.php	10195	0644	edit dl rm
HTMLModuleManager.php	15946	0644	edit dl rm
IDAccumulator.php	1647	0644	edit dl rm
Injector.php	9006	0644	edit dl rm
Language.php	6062	0644	edit dl rm
LanguageFactory.php	6618	0644	edit dl rm
Length.php	3892	0644	edit dl rm
Lexer.php	13535	0644	edit dl rm
Node.php	1280	0644	edit dl rm
PercentEncoder.php	3565	0644	edit dl rm
Printer.php	5897	0644	edit dl rm
PropertyList.php	2783	0644	edit dl rm
PropertyListIterator.php	894	0644	edit dl rm
Queue.php	1551	0644	edit dl rm
Strategy.php	762	0644	edit dl rm
StringHash.php	1099	0644	edit dl rm
StringHashParser.php	3641	0644	edit dl rm
TagTransform.php	1098	0644	edit dl rm
Token.php	2225	0644	edit dl rm
TokenFactory.php	3099	0644	edit dl rm
UnitConverter.php	10130	0644	edit dl rm
URI.php	10596	0644	edit dl rm
URIDefinition.php	3430	0644	edit dl rm
URIFilter.php	2365	0644	edit dl rm
URIParser.php	2294	0644	edit dl rm
URIScheme.php	3481	0644	edit dl rm
URISchemeRegistry.php	2409	0644	edit dl rm
VarParser.php	5990	0644	edit dl rm
VarParserException.php	157	0644	edit dl rm
Zipper.php	4442	0644	edit dl rm

Edit: /var/www/vhosts/ihelp.ro/httpdocs/vendor/ezyang/htmlpurifier/library/HTMLPurifier/UnitConverter.php (10130B)

<?php

/**
 * Class for converting between different unit-lengths as specified by
 * CSS.
 */
class HTMLPurifier_UnitConverter
{

const ENGLISH = 1;
    const METRIC = 2;
    const DIGITAL = 3;

/**
     * Units information array. Units are grouped into measuring systems
     * (English, Metric), and are assigned an integer representing
     * the conversion factor between that unit and the smallest unit in
     * the system. Numeric indexes are actually magical constants that
     * encode conversion data from one system to the next, with a O(n^2)
     * constraint on memory (this is generally not a problem, since
     * the number of measuring systems is small.)
     */
    protected static $units = array(
        self::ENGLISH => array(
            'px' => 3, // This is as per CSS 2.1 and Firefox. Your mileage may vary
            'pt' => 4,
            'pc' => 48,
            'in' => 288,
            self::METRIC => array('pt', '0.352777778', 'mm'),
        ),
        self::METRIC => array(
            'mm' => 1,
            'cm' => 10,
            self::ENGLISH => array('mm', '2.83464567', 'pt'),
        ),
    );

/**
     * Minimum bcmath precision for output.
     * @type int
     */
    protected $outputPrecision;

/**
     * Bcmath precision for internal calculations.
     * @type int
     */
    protected $internalPrecision;

/**
     * Whether or not BCMath is available.
     * @type bool
     */
    private $bcmath;

public function __construct($output_precision = 4, $internal_precision = 10, $force_no_bcmath = false)
    {
        $this->outputPrecision = $output_precision;
        $this->internalPrecision = $internal_precision;
        $this->bcmath = !$force_no_bcmath && function_exists('bcmul');
    }

/**
     * Converts a length object of one unit into another unit.
     * @param HTMLPurifier_Length $length
     *      Instance of HTMLPurifier_Length to convert. You must validate()
     *      it before passing it here!
     * @param string $to_unit
     *      Unit to convert to.
     * @return HTMLPurifier_Length|bool
     * @note
     *      About precision: This conversion function pays very special
     *      attention to the incoming precision of values and attempts
     *      to maintain a number of significant figure. Results are
     *      fairly accurate up to nine digits. Some caveats:
     *          - If a number is zero-padded as a result of this significant
     *            figure tracking, the zeroes will be eliminated.
     *          - If a number contains less than four sigfigs ($outputPrecision)
     *            and this causes some decimals to be excluded, those
     *            decimals will be added on.
     */
    public function convert($length, $to_unit)
    {
        if (!$length->isValid()) {
            return false;
        }

$n = $length->getN();
        $unit = $length->getUnit();

if ($n === '0' || $unit === false) {
            return new HTMLPurifier_Length('0', false);
        }

$state = $dest_state = false;
        foreach (self::$units as $k => $x) {
            if (isset($x[$unit])) {
                $state = $k;
            }
            if (isset($x[$to_unit])) {
                $dest_state = $k;
            }
        }
        if (!$state || !$dest_state) {
            return false;
        }

// Some calculations about the initial precision of the number;
        // this will be useful when we need to do final rounding.
        $sigfigs = $this->getSigFigs($n);
        if ($sigfigs < $this->outputPrecision) {
            $sigfigs = $this->outputPrecision;
        }

// BCMath's internal precision deals only with decimals. Use
        // our default if the initial number has no decimals, or increase
        // it by how ever many decimals, thus, the number of guard digits
        // will always be greater than or equal to internalPrecision.
        $log = (int)floor(log(abs($n), 10));
        $cp = ($log < 0) ? $this->internalPrecision - $log : $this->internalPrecision; // internal precision

for ($i = 0; $i < 2; $i++) {

// Determine what unit IN THIS SYSTEM we need to convert to
            if ($dest_state === $state) {
                // Simple conversion
                $dest_unit = $to_unit;
            } else {
                // Convert to the smallest unit, pending a system shift
                $dest_unit = self::$units[$state][$dest_state][0];
            }

// Do the conversion if necessary
            if ($dest_unit !== $unit) {
                $factor = $this->div(self::$units[$state][$unit], self::$units[$state][$dest_unit], $cp);
                $n = $this->mul($n, $factor, $cp);
                $unit = $dest_unit;
            }

// Output was zero, so bail out early. Shouldn't ever happen.
            if ($n === '') {
                $n = '0';
                $unit = $to_unit;
                break;
            }

// It was a simple conversion, so bail out
            if ($dest_state === $state) {
                break;
            }

if ($i !== 0) {
                // Conversion failed! Apparently, the system we forwarded
                // to didn't have this unit. This should never happen!
                return false;
            }

// Pre-condition: $i == 0

// Perform conversion to next system of units
            $n = $this->mul($n, self::$units[$state][$dest_state][1], $cp);
            $unit = self::$units[$state][$dest_state][2];
            $state = $dest_state;

// One more loop around to convert the unit in the new system.

}

// Post-condition: $unit == $to_unit
        if ($unit !== $to_unit) {
            return false;
        }

// Useful for debugging:
        //echo "<pre>n";
        //echo "$n\nsigfigs = $sigfigs\nnew_log = $new_log\nlog = $log\nrp = $rp\n</pre>\n";

$n = $this->round($n, $sigfigs);
        if (strpos($n, '.') !== false) {
            $n = rtrim($n, '0');
        }
        $n = rtrim($n, '.');

return new HTMLPurifier_Length($n, $unit);
    }

/**
     * Returns the number of significant figures in a string number.
     * @param string $n Decimal number
     * @return int number of sigfigs
     */
    public function getSigFigs($n)
    {
        $n = ltrim($n, '0+-');
        $dp = strpos($n, '.'); // decimal position
        if ($dp === false) {
            $sigfigs = strlen(rtrim($n, '0'));
        } else {
            $sigfigs = strlen(ltrim($n, '0.')); // eliminate extra decimal character
            if ($dp !== 0) {
                $sigfigs--;
            }
        }
        return $sigfigs;
    }

/**
     * Adds two numbers, using arbitrary precision when available.
     * @param string $s1
     * @param string $s2
     * @param int $scale
     * @return string
     */
    private function add($s1, $s2, $scale)
    {
        if ($this->bcmath) {
            return bcadd($s1, $s2, $scale);
        } else {
            return $this->scale((float)$s1 + (float)$s2, $scale);
        }
    }

/**
     * Multiples two numbers, using arbitrary precision when available.
     * @param string $s1
     * @param string $s2
     * @param int $scale
     * @return string
     */
    private function mul($s1, $s2, $scale)
    {
        if ($this->bcmath) {
            return bcmul($s1, $s2, $scale);
        } else {
            return $this->scale((float)$s1 * (float)$s2, $scale);
        }
    }

/**
     * Divides two numbers, using arbitrary precision when available.
     * @param string $s1
     * @param string $s2
     * @param int $scale
     * @return string
     */
    private function div($s1, $s2, $scale)
    {
        if ($this->bcmath) {
            return bcdiv($s1, $s2, $scale);
        } else {
            return $this->scale((float)$s1 / (float)$s2, $scale);
        }
    }

/**
     * Rounds a number according to the number of sigfigs it should have,
     * using arbitrary precision when available.
     * @param float $n
     * @param int $sigfigs
     * @return string
     */
    private function round($n, $sigfigs)
    {
        $new_log = (int)floor(log(abs($n), 10)); // Number of digits left of decimal - 1
        $rp = $sigfigs - $new_log - 1; // Number of decimal places needed
        $neg = $n < 0 ? '-' : ''; // Negative sign
        if ($this->bcmath) {
            if ($rp >= 0) {
                $n = bcadd($n, $neg . '0.' . str_repeat('0', $rp) . '5', $rp + 1);
                $n = bcdiv($n, '1', $rp);
            } else {
                // This algorithm partially depends on the standardized
                // form of numbers that comes out of bcmath.
                $n = bcadd($n, $neg . '5' . str_repeat('0', $new_log - $sigfigs), 0);
                $n = substr($n, 0, $sigfigs + strlen($neg)) . str_repeat('0', $new_log - $sigfigs + 1);
            }
            return $n;
        } else {
            return $this->scale(round($n, $sigfigs - $new_log - 1), $rp + 1);
        }
    }

/**
     * Scales a float to $scale digits right of decimal point, like BCMath.
     * @param float $r
     * @param int $scale
     * @return string
     */
    private function scale($r, $scale)
    {
        if ($scale < 0) {
            // The f sprintf type doesn't support negative numbers, so we
            // need to cludge things manually. First get the string.
            $r = sprintf('%.0f', (float)$r);
            // Due to floating point precision loss, $r will more than likely
            // look something like 4652999999999.9234. We grab one more digit
            // than we need to precise from $r and then use that to round
            // appropriately.
            $precise = (string)round(substr($r, 0, strlen($r) + $scale), -1);
            // Now we return it, truncating the zero that was rounded off.
            return substr($precise, 0, -1) . str_repeat('0', -$scale + 1);
        }
        return sprintf('%.' . $scale . 'f', (float)$r);
    }
}

// vim: et sw=4 sts=4

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