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Update pelago/emogrifier bundle (^6.0.0)

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This commit is contained in:
Benjamin Dalsass
2022-07-26 10:30:37 +02:00
committed by bdalsass
parent f6c50733fc
commit 742ef2b23b
55 changed files with 9752 additions and 0 deletions
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229
lib/firebase/php-jwt/src/CachedKeySet.php Normal file
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<?php
namespace Firebase\JWT;
use ArrayAccess;
use LogicException;
use OutOfBoundsException;
use Psr\Cache\CacheItemInterface;
use Psr\Cache\CacheItemPoolInterface;
use Psr\Http\Client\ClientInterface;
use Psr\Http\Message\RequestFactoryInterface;
use RuntimeException;
/**
* @implements ArrayAccess<string, Key>
*/
class CachedKeySet implements ArrayAccess
{
/**
* @var string
*/
private $jwksUri;
/**
* @var ClientInterface
*/
private $httpClient;
/**
* @var RequestFactoryInterface
*/
private $httpFactory;
/**
* @var CacheItemPoolInterface
*/
private $cache;
/**
* @var ?int
*/
private $expiresAfter;
/**
* @var ?CacheItemInterface
*/
private $cacheItem;
/**
* @var array<string, Key>
*/
private $keySet;
/**
* @var string
*/
private $cacheKey;
/**
* @var string
*/
private $cacheKeyPrefix = 'jwks';
/**
* @var int
*/
private $maxKeyLength = 64;
/**
* @var bool
*/
private $rateLimit;
/**
* @var string
*/
private $rateLimitCacheKey;
/**
* @var int
*/
private $maxCallsPerMinute = 10;
/**
* @var string|null
*/
private $defaultAlg;
public function __construct(
string $jwksUri,
ClientInterface $httpClient,
RequestFactoryInterface $httpFactory,
CacheItemPoolInterface $cache,
int $expiresAfter = null,
bool $rateLimit = false,
string $defaultAlg = null
) {
$this->jwksUri = $jwksUri;
$this->httpClient = $httpClient;
$this->httpFactory = $httpFactory;
$this->cache = $cache;
$this->expiresAfter = $expiresAfter;
$this->rateLimit = $rateLimit;
$this->defaultAlg = $defaultAlg;
$this->setCacheKeys();
}
/**
* @param string $keyId
* @return Key
*/
public function offsetGet($keyId): Key
{
if (!$this->keyIdExists($keyId)) {
throw new OutOfBoundsException('Key ID not found');
}
return $this->keySet[$keyId];
}
/**
* @param string $keyId
* @return bool
*/
public function offsetExists($keyId): bool
{
return $this->keyIdExists($keyId);
}
/**
* @param string $offset
* @param Key $value
*/
public function offsetSet($offset, $value): void
{
throw new LogicException('Method not implemented');
}
/**
* @param string $offset
*/
public function offsetUnset($offset): void
{
throw new LogicException('Method not implemented');
}
private function keyIdExists(string $keyId): bool
{
if (null === $this->keySet) {
$item = $this->getCacheItem();
// Try to load keys from cache
if ($item->isHit()) {
// item found! Return it
$jwks = $item->get();
$this->keySet = JWK::parseKeySet(json_decode($jwks, true), $this->defaultAlg);
}
}
if (!isset($this->keySet[$keyId])) {
if ($this->rateLimitExceeded()) {
return false;
}
$request = $this->httpFactory->createRequest('get', $this->jwksUri);
$jwksResponse = $this->httpClient->sendRequest($request);
$jwks = (string) $jwksResponse->getBody();
$this->keySet = JWK::parseKeySet(json_decode($jwks, true), $this->defaultAlg);
if (!isset($this->keySet[$keyId])) {
return false;
}
$item = $this->getCacheItem();
$item->set($jwks);
if ($this->expiresAfter) {
$item->expiresAfter($this->expiresAfter);
}
$this->cache->save($item);
}
return true;
}
private function rateLimitExceeded(): bool
{
if (!$this->rateLimit) {
return false;
}
$cacheItem = $this->cache->getItem($this->rateLimitCacheKey);
if (!$cacheItem->isHit()) {
$cacheItem->expiresAfter(1); // # of calls are cached each minute
}
$callsPerMinute = (int) $cacheItem->get();
if (++$callsPerMinute > $this->maxCallsPerMinute) {
return true;
}
$cacheItem->set($callsPerMinute);
$this->cache->save($cacheItem);
return false;
}
private function getCacheItem(): CacheItemInterface
{
if (\is_null($this->cacheItem)) {
$this->cacheItem = $this->cache->getItem($this->cacheKey);
}
return $this->cacheItem;
}
private function setCacheKeys(): void
{
if (empty($this->jwksUri)) {
throw new RuntimeException('JWKS URI is empty');
}
// ensure we do not have illegal characters
$key = preg_replace('|[^a-zA-Z0-9_\.!]|', '', $this->jwksUri);
// add prefix
$key = $this->cacheKeyPrefix . $key;
// Hash keys if they exceed $maxKeyLength of 64
if (\strlen($key) > $this->maxKeyLength) {
$key = substr(hash('sha256', $key), 0, $this->maxKeyLength);
}
$this->cacheKey = $key;
if ($this->rateLimit) {
// add prefix
$rateLimitKey = $this->cacheKeyPrefix . 'ratelimit' . $key;
// Hash keys if they exceed $maxKeyLength of 64
if (\strlen($rateLimitKey) > $this->maxKeyLength) {
$rateLimitKey = substr(hash('sha256', $rateLimitKey), 0, $this->maxKeyLength);
}
$this->rateLimitCacheKey = $rateLimitKey;
}
}
}

23
lib/pelago/emogrifier/phpunit.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/8.5/phpunit.xsd"
bootstrap="vendor/autoload.php"
colors="true"
executionOrder="depends,defects"
forceCoversAnnotation="true"
beStrictAboutCoversAnnotation="true"
beStrictAboutOutputDuringTests="true"
beStrictAboutTodoAnnotatedTests="true"
verbose="true">
<testsuites>
<testsuite name="default">
<directory>tests</directory>
</testsuite>
</testsuites>
<filter>
<whitelist processUncoveredFilesFromWhitelist="true">
<directory suffix=".php">src</directory>
</whitelist>
</filter>
</phpunit>

87
lib/pelago/emogrifier/src/Caching/SimpleStringCache.php Normal file
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<?php
declare(strict_types=1);
namespace Pelago\Emogrifier\Caching;
/**
* This cache caches string values with string keys. It is not PSR-6-compliant.
*
* Usage:
*
* ```php
* $cache = new SimpleStringCache();
* $cache->set($key, $value);
* …
* if ($cache->has($key) {
* $cachedValue = $cache->get($value);
* }
* ```
*
* @internal
*/
class SimpleStringCache
{
/**
* @var array<string, string>
*/
private $values = [];
/**
* Checks whether there is an entry stored for the given key.
*
* @param string $key the key to check; must not be empty
*
* @throws \InvalidArgumentException
*/
public function has(string $key): bool
{
$this->assertNotEmptyKey($key);
return isset($this->values[$key]);
}
/**
* Returns the entry stored for the given key, and throws an exception if the value does not exist
* (which helps keep the return type simple).
*
* @param string $key the key to of the item to retrieve; must not be empty
*
* @return string the retrieved value; may be empty
*
* @throws \BadMethodCallException
*/
public function get(string $key): string
{
if (!$this->has($key)) {
throw new \BadMethodCallException('You can only call `get` with a key for an existing value.', 1625996246);
}
return $this->values[$key];
}
/**
* Sets or overwrites an entry.
*
* @param string $key the key to of the item to set; must not be empty
* @param string $value the value to set; can be empty
*
* @throws \BadMethodCallException
*/
public function set(string $key, string $value): void
{
$this->assertNotEmptyKey($key);
$this->values[$key] = $value;
}
/**
* @throws \InvalidArgumentException
*/
private function assertNotEmptyKey(string $key): void
{
if ($key === '') {
throw new \InvalidArgumentException('Please provide a non-empty key.', 1625995840);
}
}
}

187
lib/pelago/emogrifier/src/Css/CssDocument.php Normal file
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<?php
declare(strict_types=1);
namespace Pelago\Emogrifier\Css;
use Sabberworm\CSS\CSSList\AtRuleBlockList as CssAtRuleBlockList;
use Sabberworm\CSS\CSSList\Document as SabberwormCssDocument;
use Sabberworm\CSS\Parser as CssParser;
use Sabberworm\CSS\Property\AtRule as CssAtRule;
use Sabberworm\CSS\Property\Charset as CssCharset;
use Sabberworm\CSS\Property\Import as CssImport;
use Sabberworm\CSS\Renderable as CssRenderable;
use Sabberworm\CSS\RuleSet\DeclarationBlock as CssDeclarationBlock;
use Sabberworm\CSS\RuleSet\RuleSet as CssRuleSet;
/**
* Parses and stores a CSS document from a string of CSS, and provides methods to obtain the CSS in parts or as data
* structures.
*
* @internal
*/
class CssDocument
{
/**
* @var SabberwormCssDocument
*/
private $sabberwormCssDocument;
/**
* `@import` rules must precede all other types of rules, except `@charset` rules. This property is used while
* rendering at-rules to enforce that.
*
* @var bool
*/
private $isImportRuleAllowed = true;
/**
* @param string $css
*/
public function __construct(string $css)
{
$cssParser = new CssParser($css);
/** @var SabberwormCssDocument $sabberwormCssDocument */
$sabberwormCssDocument = $cssParser->parse();
$this->sabberwormCssDocument = $sabberwormCssDocument;
}
/**
* Collates the media query, selectors and declarations for individual rules from the parsed CSS, in order.
*
* @param array<array-key, string> $allowedMediaTypes
*
* @return array<int, StyleRule>
*/
public function getStyleRulesData(array $allowedMediaTypes): array
{
$ruleMatches = [];
/** @var CssRenderable $rule */
foreach ($this->sabberwormCssDocument->getContents() as $rule) {
if ($rule instanceof CssAtRuleBlockList) {
$containingAtRule = $this->getFilteredAtIdentifierAndRule($rule, $allowedMediaTypes);
if (\is_string($containingAtRule)) {
/** @var CssRenderable $nestedRule */
foreach ($rule->getContents() as $nestedRule) {
if ($nestedRule instanceof CssDeclarationBlock) {
$ruleMatches[] = new StyleRule($nestedRule, $containingAtRule);
}
}
}
} elseif ($rule instanceof CssDeclarationBlock) {
$ruleMatches[] = new StyleRule($rule);
}
}
return $ruleMatches;
}
/**
* Renders at-rules from the parsed CSS that are valid and not conditional group rules (i.e. not rules such as
* `@media` which contain style rules whose data is returned by {@see getStyleRulesData}). Also does not render
* `@charset` rules; these are discarded (only UTF-8 is supported).
*
* @return string
*/
public function renderNonConditionalAtRules(): string
{
$this->isImportRuleAllowed = true;
/** @var array<int, CssRenderable> $cssContents */
$cssContents = $this->sabberwormCssDocument->getContents();
$atRules = \array_filter($cssContents, [$this, 'isValidAtRuleToRender']);
if ($atRules === []) {
return '';
}
$atRulesDocument = new SabberwormCssDocument();
$atRulesDocument->setContents($atRules);
/** @var string $renderedRules */
$renderedRules = $atRulesDocument->render();
return $renderedRules;
}
/**
* @param CssAtRuleBlockList $rule
* @param array<array-key, string> $allowedMediaTypes
*
* @return ?string
* If the nested at-rule is supported, it's opening declaration (e.g. "@media (max-width: 768px)") is
* returned; otherwise the return value is null.
*/
private function getFilteredAtIdentifierAndRule(CssAtRuleBlockList $rule, array $allowedMediaTypes): ?string
{
$result = null;
if ($rule->atRuleName() === 'media') {
/** @var string $mediaQueryList */
$mediaQueryList = $rule->atRuleArgs();
[$mediaType] = \explode('(', $mediaQueryList, 2);
if (\trim($mediaType) !== '') {
$escapedAllowedMediaTypes = \array_map(
static function (string $allowedMediaType): string {
return \preg_quote($allowedMediaType, '/');
},
$allowedMediaTypes
);
$mediaTypesMatcher = \implode('|', $escapedAllowedMediaTypes);
$isAllowed = \preg_match('/^\\s*+(?:only\\s++)?+(?:' . $mediaTypesMatcher . ')/i', $mediaType) > 0;
} else {
$isAllowed = true;
}
if ($isAllowed) {
$result = '@media ' . $mediaQueryList;
}
}
return $result;
}
/**
* Tests if a CSS rule is an at-rule that should be passed though and copied to a `<style>` element unmodified:
* - `@charset` rules are discarded - only UTF-8 is supported - `false` is returned;
* - `@import` rules are passed through only if they satisfy the specification ("user agents must ignore any
* '@import' rule that occurs inside a block or after any non-ignored statement other than an '@charset' or an
* '@import' rule");
* - `@media` rules are processed separately to see if their nested rules apply - `false` is returned;
* - `@font-face` rules are checked for validity - they must contain both a `src` and `font-family` property;
* - other at-rules are assumed to be valid and treated as a black box - `true` is returned.
*
* @param CssRenderable $rule
*
* @return bool
*/
private function isValidAtRuleToRender(CssRenderable $rule): bool
{
if ($rule instanceof CssCharset) {
return false;
}
if ($rule instanceof CssImport) {
return $this->isImportRuleAllowed;
}
$this->isImportRuleAllowed = false;
if (!$rule instanceof CssAtRule) {
return false;
}
switch ($rule->atRuleName()) {
case 'media':
$result = false;
break;
case 'font-face':
$result = $rule instanceof CssRuleSet
&& $rule->getRules('font-family') !== []
&& $rule->getRules('src') !== [];
break;
default:
$result = true;
}
return $result;
}
}

83
lib/pelago/emogrifier/src/Css/StyleRule.php Normal file
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<?php
declare(strict_types=1);
namespace Pelago\Emogrifier\Css;
use Sabberworm\CSS\Property\Selector;
use Sabberworm\CSS\RuleSet\DeclarationBlock;
/**
* This class represents a CSS style rule, including selectors, a declaration block, and an optional containing at-rule.
*
* @internal
*/
class StyleRule
{
/**
* @var DeclarationBlock
*/
private $declarationBlock;
/**
* @var string
*/
private $containingAtRule;
/**
* @param DeclarationBlock $declarationBlock
* @param string $containingAtRule e.g. `@media screen and (max-width: 480px)`
*/
public function __construct(DeclarationBlock $declarationBlock, string $containingAtRule = '')
{
$this->declarationBlock = $declarationBlock;
$this->containingAtRule = \trim($containingAtRule);
}
/**
* @return array<int, string> the selectors, e.g. `["h1", "p"]`
*/
public function getSelectors(): array
{
/** @var array<int, Selector> $selectors */
$selectors = $this->declarationBlock->getSelectors();
return \array_map(
static function (Selector $selector): string {
return (string)$selector;
},
$selectors
);
}
/**
* @return string the CSS declarations, separated and followed by a semicolon, e.g., `color: red; height: 4px;`
*/
public function getDeclarationAsText(): string
{
return \implode(' ', $this->declarationBlock->getRules());
}
/**
* Checks whether the declaration block has at least one declaration.
*/
public function hasAtLeastOneDeclaration(): bool
{
return $this->declarationBlock->getRules() !== [];
}
/**
* @returns string e.g. `@media screen and (max-width: 480px)`, or an empty string
*/
public function getContainingAtRule(): string
{
return $this->containingAtRule;
}
/**
* Checks whether the containing at-rule is non-empty and has any non-whitespace characters.
*/
public function hasContainingAtRule(): bool
{
return $this->getContainingAtRule() !== '';
}
}

1196
lib/pelago/emogrifier/src/CssInliner.php Normal file
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472
lib/pelago/emogrifier/src/HtmlProcessor/AbstractHtmlProcessor.php Normal file
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<?php
declare(strict_types=1);
namespace Pelago\Emogrifier\HtmlProcessor;
/**
* Base class for HTML processor that e.g., can remove, add or modify nodes or attributes.
*
* The "vanilla" subclass is the HtmlNormalizer.
*
* @psalm-consistent-constructor
*/
abstract class AbstractHtmlProcessor
{
/**
* @var string
*/
protected const DEFAULT_DOCUMENT_TYPE = '<!DOCTYPE html>';
/**
* @var string
*/
protected const CONTENT_TYPE_META_TAG = '<meta http-equiv="Content-Type" content="text/html; charset=utf-8">';
/**
* @var string Regular expression part to match tag names that PHP's DOMDocument implementation is not aware are
* self-closing. These are mostly HTML5 elements, but for completeness <command> (obsolete) and <keygen>
* (deprecated) are also included.
*
* @see https://bugs.php.net/bug.php?id=73175
*/
protected const PHP_UNRECOGNIZED_VOID_TAGNAME_MATCHER = '(?:command|embed|keygen|source|track|wbr)';
/**
* Regular expression part to match tag names that may appear before the start of the `<body>` element. A start tag
* for any other element would implicitly start the `<body>` element due to tag omission rules.
*
* @var string
*/
protected const TAGNAME_ALLOWED_BEFORE_BODY_MATCHER
= '(?:html|head|base|command|link|meta|noscript|script|style|template|title)';
/**
* regular expression pattern to match an HTML comment, including delimiters and modifiers
*
* @var string
*/
protected const HTML_COMMENT_PATTERN = '/<!--[^-]*+(?:-(?!->)[^-]*+)*+(?:-->|$)/';
/**
* regular expression pattern to match an HTML `<template>` element, including delimiters and modifiers
*
* @var string
*/
protected const HTML_TEMPLATE_ELEMENT_PATTERN
= '%<template[\\s>][^<]*+(?:<(?!/template>)[^<]*+)*+(?:</template>|$)%i';
/**
* @var ?\DOMDocument
*/
protected $domDocument = null;
/**
* @var ?\DOMXPath
*/
private $xPath = null;
/**
* The constructor.
*
* Please use `::fromHtml` or `::fromDomDocument` instead.
*/
private function __construct()
{
}
/**
* Builds a new instance from the given HTML.
*
* @param string $unprocessedHtml raw HTML, must be UTF-encoded, must not be empty
*
* @return static
*
* @throws \InvalidArgumentException if $unprocessedHtml is anything other than a non-empty string
*/
public static function fromHtml(string $unprocessedHtml): self
{
if ($unprocessedHtml === '') {
throw new \InvalidArgumentException('The provided HTML must not be empty.', 1515763647);
}
$instance = new static();
$instance->setHtml($unprocessedHtml);
return $instance;
}
/**
* Builds a new instance from the given DOM document.
*
* @param \DOMDocument $document a DOM document returned by getDomDocument() of another instance
*
* @return static
*/
public static function fromDomDocument(\DOMDocument $document): self
{
$instance = new static();
$instance->setDomDocument($document);
return $instance;
}
/**
* Sets the HTML to process.
*
* @param string $html the HTML to process, must be UTF-8-encoded
*/
private function setHtml(string $html): void
{
$this->createUnifiedDomDocument($html);
}
/**
* Provides access to the internal DOMDocument representation of the HTML in its current state.
*
* @return \DOMDocument
*
* @throws \UnexpectedValueException
*/
public function getDomDocument(): \DOMDocument
{
if (!$this->domDocument instanceof \DOMDocument) {
$message = self::class . '::setDomDocument() has not yet been called on ' . static::class;
throw new \UnexpectedValueException($message, 1570472239);
}
return $this->domDocument;
}
/**
* @param \DOMDocument $domDocument
*/
private function setDomDocument(\DOMDocument $domDocument): void
{
$this->domDocument = $domDocument;
$this->xPath = new \DOMXPath($this->domDocument);
}
/**
* @return \DOMXPath
*
* @throws \UnexpectedValueException
*/
protected function getXPath(): \DOMXPath
{
if (!$this->xPath instanceof \DOMXPath) {
$message = self::class . '::setDomDocument() has not yet been called on ' . static::class;
throw new \UnexpectedValueException($message, 1617819086);
}
return $this->xPath;
}
/**
* Renders the normalized and processed HTML.
*
* @return string
*/
public function render(): string
{
$htmlWithPossibleErroneousClosingTags = $this->getDomDocument()->saveHTML();
return $this->removeSelfClosingTagsClosingTags($htmlWithPossibleErroneousClosingTags);
}
/**
* Renders the content of the BODY element of the normalized and processed HTML.
*
* @return string
*/
public function renderBodyContent(): string
{
$htmlWithPossibleErroneousClosingTags = $this->getDomDocument()->saveHTML($this->getBodyElement());
$bodyNodeHtml = $this->removeSelfClosingTagsClosingTags($htmlWithPossibleErroneousClosingTags);
return \preg_replace('%</?+body(?:\\s[^>]*+)?+>%', '', $bodyNodeHtml);
}
/**
* Eliminates any invalid closing tags for void elements from the given HTML.
*
* @param string $html
*
* @return string
*/
private function removeSelfClosingTagsClosingTags(string $html): string
{
return \preg_replace('%</' . self::PHP_UNRECOGNIZED_VOID_TAGNAME_MATCHER . '>%', '', $html);
}
/**
* Returns the BODY element.
*
* This method assumes that there always is a BODY element.
*
* @return \DOMElement
*
* @throws \RuntimeException
*/
private function getBodyElement(): \DOMElement
{
$node = $this->getDomDocument()->getElementsByTagName('body')->item(0);
if (!$node instanceof \DOMElement) {
throw new \RuntimeException('There is no body element.', 1617922607);
}
return $node;
}
/**
* Creates a DOM document from the given HTML and stores it in $this->domDocument.
*
* The DOM document will always have a BODY element and a document type.
*
* @param string $html
*/
private function createUnifiedDomDocument(string $html): void
{
$this->createRawDomDocument($html);
$this->ensureExistenceOfBodyElement();
}
/**
* Creates a DOMDocument instance from the given HTML and stores it in $this->domDocument.
*
* @param string $html
*/
private function createRawDomDocument(string $html): void
{
$domDocument = new \DOMDocument();
$domDocument->strictErrorChecking = false;
$domDocument->formatOutput = true;
$libXmlState = \libxml_use_internal_errors(true);
$domDocument->loadHTML($this->prepareHtmlForDomConversion($html));
\libxml_clear_errors();
\libxml_use_internal_errors($libXmlState);
$this->setDomDocument($domDocument);
}
/**
* Returns the HTML with added document type, Content-Type meta tag, and self-closing slashes, if needed,
* ensuring that the HTML will be good for creating a DOM document from it.
*
* @param string $html
*
* @return string the unified HTML
*/
private function prepareHtmlForDomConversion(string $html): string
{
$htmlWithSelfClosingSlashes = $this->ensurePhpUnrecognizedSelfClosingTagsAreXml($html);
$htmlWithDocumentType = $this->ensureDocumentType($htmlWithSelfClosingSlashes);
return $this->addContentTypeMetaTag($htmlWithDocumentType);
}
/**
* Makes sure that the passed HTML has a document type, with lowercase "html".
*
* @param string $html
*
* @return string HTML with document type
*/
private function ensureDocumentType(string $html): string
{
$hasDocumentType = \stripos($html, '<!DOCTYPE') !== false;
if ($hasDocumentType) {
return $this->normalizeDocumentType($html);
}
return self::DEFAULT_DOCUMENT_TYPE . $html;
}
/**
* Makes sure the document type in the passed HTML has lowercase "html".
*
* @param string $html
*
* @return string HTML with normalized document type
*/
private function normalizeDocumentType(string $html): string
{
// Limit to replacing the first occurrence: as an optimization; and in case an example exists as unescaped text.
return \preg_replace(
'/<!DOCTYPE\\s++html(?=[\\s>])/i',
'<!DOCTYPE html',
$html,
1
);
}
/**
* Adds a Content-Type meta tag for the charset.
*
* This method also ensures that there is a HEAD element.
*
* @param string $html
*
* @return string the HTML with the meta tag added
*/
private function addContentTypeMetaTag(string $html): string
{
if ($this->hasContentTypeMetaTagInHead($html)) {
return $html;
}
// We are trying to insert the meta tag to the right spot in the DOM.
// If we just prepended it to the HTML, we would lose attributes set to the HTML tag.
$hasHeadTag = \preg_match('/<head[\\s>]/i', $html);
$hasHtmlTag = \stripos($html, '<html') !== false;
if ($hasHeadTag) {
$reworkedHtml = \preg_replace(
'/<head(?=[\\s>])([^>]*+)>/i',
'<head$1>' . self::CONTENT_TYPE_META_TAG,
$html
);
} elseif ($hasHtmlTag) {
$reworkedHtml = \preg_replace(
'/<html(.*?)>/is',
'<html$1><head>' . self::CONTENT_TYPE_META_TAG . '</head>',
$html
);
} else {
$reworkedHtml = self::CONTENT_TYPE_META_TAG . $html;
}
return $reworkedHtml;
}
/**
* Tests whether the given HTML has a valid `Content-Type` metadata element within the `<head>` element. Due to tag
* omission rules, HTML parsers are expected to end the `<head>` element and start the `<body>` element upon
* encountering a start tag for any element which is permitted only within the `<body>`.
*
* @param string $html
*
* @return bool
*/
private function hasContentTypeMetaTagInHead(string $html): bool
{
\preg_match('%^.*?(?=<meta(?=\\s)[^>]*\\shttp-equiv=(["\']?+)Content-Type\\g{-1}[\\s/>])%is', $html, $matches);
if (isset($matches[0])) {
$htmlBefore = $matches[0];
try {
$hasContentTypeMetaTagInHead = !$this->hasEndOfHeadElement($htmlBefore);
} catch (\RuntimeException $exception) {
// If something unexpected occurs, assume the `Content-Type` that was found is valid.
\trigger_error($exception->getMessage());
$hasContentTypeMetaTagInHead = true;
}
} else {
$hasContentTypeMetaTagInHead = false;
}
return $hasContentTypeMetaTagInHead;
}
/**
* Tests whether the `<head>` element ends within the given HTML. Due to tag omission rules, HTML parsers are
* expected to end the `<head>` element and start the `<body>` element upon encountering a start tag for any element
* which is permitted only within the `<body>`.
*
* @param string $html
*
* @return bool
*
* @throws \RuntimeException
*/
private function hasEndOfHeadElement(string $html): bool
{
$headEndTagMatchCount
= \preg_match('%<(?!' . self::TAGNAME_ALLOWED_BEFORE_BODY_MATCHER . '[\\s/>])\\w|</head>%i', $html);
if (\is_int($headEndTagMatchCount) && $headEndTagMatchCount > 0) {
// An exception to the implicit end of the `<head>` is any content within a `<template>` element, as well in
// comments. As an optimization, this is only checked for if a potential `<head>` end tag is found.
$htmlWithoutCommentsOrTemplates = $this->removeHtmlTemplateElements($this->removeHtmlComments($html));
$hasEndOfHeadElement = $htmlWithoutCommentsOrTemplates === $html
|| $this->hasEndOfHeadElement($htmlWithoutCommentsOrTemplates);
} else {
$hasEndOfHeadElement = false;
}
return $hasEndOfHeadElement;
}
/**
* Removes comments from the given HTML, including any which are unterminated, for which the remainder of the string
* is removed.
*
* @param string $html
*
* @return string
*
* @throws \RuntimeException
*/
private function removeHtmlComments(string $html): string
{
$result = \preg_replace(self::HTML_COMMENT_PATTERN, '', $html);
if (!\is_string($result)) {
throw new \RuntimeException('Internal PCRE error', 1616521475);
}
return $result;
}
/**
* Removes `<template>` elements from the given HTML, including any without an end tag, for which the remainder of
* the string is removed.
*
* @param string $html
*
* @return string
*
* @throws \RuntimeException
*/
private function removeHtmlTemplateElements(string $html): string
{
$result = \preg_replace(self::HTML_TEMPLATE_ELEMENT_PATTERN, '', $html);
if (!\is_string($result)) {
throw new \RuntimeException('Internal PCRE error', 1616519652);
}
return $result;
}
/**
* Makes sure that any self-closing tags not recognized as such by PHP's DOMDocument implementation have a
* self-closing slash.
*
* @param string $html
*
* @return string HTML with problematic tags converted.
*/
private function ensurePhpUnrecognizedSelfClosingTagsAreXml(string $html): string
{
return \preg_replace(
'%<' . self::PHP_UNRECOGNIZED_VOID_TAGNAME_MATCHER . '\\b[^>]*+(?<!/)(?=>)%',
'$0/',
$html
);
}
/**
* Checks that $this->domDocument has a BODY element and adds it if it is missing.
*
* @throws \UnexpectedValueException
*/
private function ensureExistenceOfBodyElement(): void
{
if ($this->getDomDocument()->getElementsByTagName('body')->item(0) instanceof \DOMElement) {
return;
}
$htmlElement = $this->getDomDocument()->getElementsByTagName('html')->item(0);
if (!$htmlElement instanceof \DOMElement) {
throw new \UnexpectedValueException('There is no HTML element although there should be one.', 1569930853);
}
$htmlElement->appendChild($this->getDomDocument()->createElement('body'));
}
}

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<?php
declare(strict_types=1);
namespace Pelago\Emogrifier\HtmlProcessor;
/**
* This HtmlProcessor can convert style HTML attributes to the corresponding other visual HTML attributes,
* e.g. it converts style="width: 100px" to width="100".
*
* It will only add attributes, but leaves the style attribute untouched.
*
* To trigger the conversion, call the convertCssToVisualAttributes method.
*/
class CssToAttributeConverter extends AbstractHtmlProcessor
{
/**
* This multi-level array contains simple mappings of CSS properties to
* HTML attributes. If a mapping only applies to certain HTML nodes or
* only for certain values, the mapping is an object with a whitelist
* of nodes and values.
*
* @var array<string, array{attribute: string, nodes?: array<int, string>, values?: array<int, string>}>
*/
private $cssToHtmlMap = [
'background-color' => [
'attribute' => 'bgcolor',
],
'text-align' => [
'attribute' => 'align',
'nodes' => ['p', 'div', 'td', 'th'],
'values' => ['left', 'right', 'center', 'justify'],
],
'float' => [
'attribute' => 'align',
'nodes' => ['table', 'img'],
'values' => ['left', 'right'],
],
'border-spacing' => [
'attribute' => 'cellspacing',
'nodes' => ['table'],
],
];
/**
* @var array<string, array<string, string>>
*/
private static $parsedCssCache = [];
/**
* Maps the CSS from the style nodes to visual HTML attributes.
*
* @return self fluent interface
*/
public function convertCssToVisualAttributes(): self
{
/** @var \DOMElement $node */
foreach ($this->getAllNodesWithStyleAttribute() as $node) {
$inlineStyleDeclarations = $this->parseCssDeclarationsBlock($node->getAttribute('style'));
$this->mapCssToHtmlAttributes($inlineStyleDeclarations, $node);
}
return $this;
}
/**
* Returns a list with all DOM nodes that have a style attribute.
*
* @return \DOMNodeList
*/
private function getAllNodesWithStyleAttribute(): \DOMNodeList
{
return $this->getXPath()->query('//*[@style]');
}
/**
* Parses a CSS declaration block into property name/value pairs.
*
* Example:
*
* The declaration block
*
* "color: #000; font-weight: bold;"
*
* will be parsed into the following array:
*
* "color" => "#000"
* "font-weight" => "bold"
*
* @param string $cssDeclarationsBlock the CSS declarations block without the curly braces, may be empty
*
* @return array<string, string>
* the CSS declarations with the property names as array keys and the property values as array values
*/
private function parseCssDeclarationsBlock(string $cssDeclarationsBlock): array
{
if (isset(self::$parsedCssCache[$cssDeclarationsBlock])) {
return self::$parsedCssCache[$cssDeclarationsBlock];
}
$properties = [];
foreach (\preg_split('/;(?!base64|charset)/', $cssDeclarationsBlock) as $declaration) {
/** @var array<int, string> $matches */
$matches = [];
if (!\preg_match('/^([A-Za-z\\-]+)\\s*:\\s*(.+)$/s', \trim($declaration), $matches)) {
continue;
}
$propertyName = \strtolower($matches[1]);
$propertyValue = $matches[2];
$properties[$propertyName] = $propertyValue;
}
self::$parsedCssCache[$cssDeclarationsBlock] = $properties;
return $properties;
}
/**
* Applies $styles to $node.
*
* This method maps CSS styles to HTML attributes and adds those to the
* node.
*
* @param array<string, string> $styles the new CSS styles taken from the global styles to be applied to this node
* @param \DOMElement $node node to apply styles to
*/
private function mapCssToHtmlAttributes(array $styles, \DOMElement $node): void
{
foreach ($styles as $property => $value) {
// Strip !important indicator
$value = \trim(\str_replace('!important', '', $value));
$this->mapCssToHtmlAttribute($property, $value, $node);
}
}
/**
* Tries to apply the CSS style to $node as an attribute.
*
* This method maps a CSS rule to HTML attributes and adds those to the node.
*
* @param string $property the name of the CSS property to map
* @param string $value the value of the style rule to map
* @param \DOMElement $node node to apply styles to
*/
private function mapCssToHtmlAttribute(string $property, string $value, \DOMElement $node): void
{
if (!$this->mapSimpleCssProperty($property, $value, $node)) {
$this->mapComplexCssProperty($property, $value, $node);
}
}
/**
* Looks up the CSS property in the mapping table and maps it if it matches the conditions.
*
* @param string $property the name of the CSS property to map
* @param string $value the value of the style rule to map
* @param \DOMElement $node node to apply styles to
*
* @return bool true if the property can be mapped using the simple mapping table
*/
private function mapSimpleCssProperty(string $property, string $value, \DOMElement $node): bool
{
if (!isset($this->cssToHtmlMap[$property])) {
return false;
}
$mapping = $this->cssToHtmlMap[$property];
$nodesMatch = !isset($mapping['nodes']) || \in_array($node->nodeName, $mapping['nodes'], true);
$valuesMatch = !isset($mapping['values']) || \in_array($value, $mapping['values'], true);
$canBeMapped = $nodesMatch && $valuesMatch;
if ($canBeMapped) {
$node->setAttribute($mapping['attribute'], $value);
}
return $canBeMapped;
}
/**
* Maps CSS properties that need special transformation to an HTML attribute.
*
* @param string $property the name of the CSS property to map
* @param string $value the value of the style rule to map
* @param \DOMElement $node node to apply styles to
*/
private function mapComplexCssProperty(string $property, string $value, \DOMElement $node): void
{
switch ($property) {
case 'background':
$this->mapBackgroundProperty($node, $value);
break;
case 'width':
// intentional fall-through
case 'height':
$this->mapWidthOrHeightProperty($node, $value, $property);
break;
case 'margin':
$this->mapMarginProperty($node, $value);
break;
case 'border':
$this->mapBorderProperty($node, $value);
break;
default:
}
}
/**
* @param \DOMElement $node node to apply styles to
* @param string $value the value of the style rule to map
*/
private function mapBackgroundProperty(\DOMElement $node, string $value): void
{
// parse out the color, if any
/** @var array<int, string> $styles */
$styles = \explode(' ', $value, 2);
$first = $styles[0];
if (\is_numeric($first[0]) || \strncmp($first, 'url', 3) === 0) {
return;
}
// as this is not a position or image, assume it's a color
$node->setAttribute('bgcolor', $first);
}
/**
* @param \DOMElement $node node to apply styles to
* @param string $value the value of the style rule to map
* @param string $property the name of the CSS property to map
*/
private function mapWidthOrHeightProperty(\DOMElement $node, string $value, string $property): void
{
// only parse values in px and %, but not values like "auto"
if (!\preg_match('/^(\\d+)(\\.(\\d+))?(px|%)$/', $value)) {
return;
}
$number = \preg_replace('/[^0-9.%]/', '', $value);
$node->setAttribute($property, $number);
}
/**
* @param \DOMElement $node node to apply styles to
* @param string $value the value of the style rule to map
*/
private function mapMarginProperty(\DOMElement $node, string $value): void
{
if (!$this->isTableOrImageNode($node)) {
return;
}
$margins = $this->parseCssShorthandValue($value);
if ($margins['left'] === 'auto' && $margins['right'] === 'auto') {
$node->setAttribute('align', 'center');
}
}
/**
* @param \DOMElement $node node to apply styles to
* @param string $value the value of the style rule to map
*/
private function mapBorderProperty(\DOMElement $node, string $value): void
{
if (!$this->isTableOrImageNode($node)) {
return;
}
if ($value === 'none' || $value === '0') {
$node->setAttribute('border', '0');
}
}
/**
* @param \DOMElement $node
*
* @return bool
*/
private function isTableOrImageNode(\DOMElement $node): bool
{
return $node->nodeName === 'table' || $node->nodeName === 'img';
}
/**
* Parses a shorthand CSS value and splits it into individual values. For example: `padding: 0 auto;` - `0 auto` is
* split into top: 0, left: auto, bottom: 0, right: auto.
*
* @param string $value a CSS property value with 1, 2, 3 or 4 sizes
*
* @return array<string, string>
* an array of values for top, right, bottom and left (using these as associative array keys)
*/
private function parseCssShorthandValue(string $value): array
{
/** @var array<int, string> $values */
$values = \preg_split('/\\s+/', $value);
$css = [];
$css['top'] = $values[0];
$css['right'] = (\count($values) > 1) ? $values[1] : $css['top'];
$css['bottom'] = (\count($values) > 2) ? $values[2] : $css['top'];
$css['left'] = (\count($values) > 3) ? $values[3] : $css['right'];
return $css;
}
}

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<?php
declare(strict_types=1);
namespace Pelago\Emogrifier\HtmlProcessor;
/**
* Normalizes HTML:
* - add a document type (HTML5) if missing
* - disentangle incorrectly nested tags
* - add HEAD and BODY elements (if they are missing)
* - reformat the HTML
*/
class HtmlNormalizer extends AbstractHtmlProcessor
{
}

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<?php
declare(strict_types=1);
namespace Pelago\Emogrifier\HtmlProcessor;
use Pelago\Emogrifier\CssInliner;
use Pelago\Emogrifier\Utilities\ArrayIntersector;
/**
* This class can remove things from HTML.
*/
class HtmlPruner extends AbstractHtmlProcessor
{
/**
* We need to look for display:none, but we need to do a case-insensitive search. Since DOMDocument only
* supports XPath 1.0, lower-case() isn't available to us. We've thus far only set attributes to lowercase,
* not attribute values. Consequently, we need to translate() the letters that would be in 'NONE' ("NOE")
* to lowercase.
*
* @var string
*/
private const DISPLAY_NONE_MATCHER
= '//*[@style and contains(translate(translate(@style," ",""),"NOE","noe"),"display:none")'
. ' and not(@class and contains(concat(" ", normalize-space(@class), " "), " -emogrifier-keep "))]';
/**
* Removes elements that have a "display: none;" style.
*
* @return self fluent interface
*/
public function removeElementsWithDisplayNone(): self
{
$elementsWithStyleDisplayNone = $this->getXPath()->query(self::DISPLAY_NONE_MATCHER);
if ($elementsWithStyleDisplayNone->length === 0) {
return $this;
}
foreach ($elementsWithStyleDisplayNone as $element) {
$parentNode = $element->parentNode;
if ($parentNode !== null) {
$parentNode->removeChild($element);
}
}
return $this;
}
/**
* Removes classes that are no longer required (e.g. because there are no longer any CSS rules that reference them)
* from `class` attributes.
*
* Note that this does not inspect the CSS, but expects to be provided with a list of classes that are still in use.
*
* This method also has the (presumably beneficial) side-effect of minifying (removing superfluous whitespace from)
* `class` attributes.
*
* @param array<array-key, string> $classesToKeep names of classes that should not be removed
*
* @return self fluent interface
*/
public function removeRedundantClasses(array $classesToKeep = []): self
{
$elementsWithClassAttribute = $this->getXPath()->query('//*[@class]');
if ($classesToKeep !== []) {
$this->removeClassesFromElements($elementsWithClassAttribute, $classesToKeep);
} else {
// Avoid unnecessary processing if there are no classes to keep.
$this->removeClassAttributeFromElements($elementsWithClassAttribute);
}
return $this;
}
/**
* Removes classes from the `class` attribute of each element in `$elements`, except any in `$classesToKeep`,
* removing the `class` attribute itself if the resultant list is empty.
*
* @param \DOMNodeList $elements
* @param array<array-key, string> $classesToKeep
*/
private function removeClassesFromElements(\DOMNodeList $elements, array $classesToKeep): void
{
$classesToKeepIntersector = new ArrayIntersector($classesToKeep);
/** @var \DOMElement $element */
foreach ($elements as $element) {
$elementClasses = \preg_split('/\\s++/', \trim($element->getAttribute('class')));
$elementClassesToKeep = $classesToKeepIntersector->intersectWith($elementClasses);
if ($elementClassesToKeep !== []) {
$element->setAttribute('class', \implode(' ', $elementClassesToKeep));
} else {
$element->removeAttribute('class');
}
}
}
/**
* Removes the `class` attribute from each element in `$elements`.
*
* @param \DOMNodeList $elements
*/
private function removeClassAttributeFromElements(\DOMNodeList $elements): void
{
/** @var \DOMElement $element */
foreach ($elements as $element) {
$element->removeAttribute('class');
}
}
/**
* After CSS has been inlined, there will likely be some classes in `class` attributes that are no longer referenced
* by any remaining (uninlinable) CSS. This method removes such classes.
*
* Note that it does not inspect the remaining CSS, but uses information readily available from the `CssInliner`
* instance about the CSS rules that could not be inlined.
*
* @param CssInliner $cssInliner object instance that performed the CSS inlining
*
* @return self fluent interface
*
* @throws \BadMethodCallException if `inlineCss` has not first been called on `$cssInliner`
*/
public function removeRedundantClassesAfterCssInlined(CssInliner $cssInliner): self
{
$classesToKeepAsKeys = [];
foreach ($cssInliner->getMatchingUninlinableSelectors() as $selector) {
\preg_match_all('/\\.(-?+[_a-zA-Z][\\w\\-]*+)/', $selector, $matches);
$classesToKeepAsKeys += \array_fill_keys($matches[1], true);
}
$this->removeRedundantClasses(\array_keys($classesToKeepAsKeys));
return $this;
}
}

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<?php
declare(strict_types=1);
namespace Pelago\Emogrifier\Utilities;
/**
* When computing many array intersections using the same array, it is more efficient to use `array_flip()` first and
* then `array_intersect_key()`, than `array_intersect()`. See the discussion at
* {@link https://stackoverflow.com/questions/6329211/php-array-intersect-efficiency Stack Overflow} for more
* information.
*
* Of course, this is only possible if the arrays contain integer or string values, and either don't contain duplicates,
* or that fact that duplicates will be removed does not matter.
*
* This class takes care of the detail.
*
* @internal
*/
class ArrayIntersector
{
/**
* the array with which the object was constructed, with all its keys exchanged with their associated values
*
* @var array<array-key, array-key>
*/
private $invertedArray;
/**
* Constructs the object with the array that will be reused for many intersection computations.
*
* @param array<array-key, array-key> $array
*/
public function __construct(array $array)
{
$this->invertedArray = \array_flip($array);
}
/**
* Computes the intersection of `$array` and the array with which this object was constructed.
*
* @param array<array-key, array-key> $array
*
* @return array<array-key, array-key>
* Returns an array containing all of the values in `$array` whose values exist in the array
* with which this object was constructed. Note that keys are preserved, order is maintained, but
* duplicates are removed.
*/
public function intersectWith(array $array): array
{
$invertedArray = \array_flip($array);
$invertedIntersection = \array_intersect_key($invertedArray, $this->invertedArray);
return \array_flip($invertedIntersection);
}
}

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<?php
declare(strict_types=1);
namespace Pelago\Emogrifier\Utilities;
/**
* Facilitates building a CSS string by appending rule blocks one at a time, checking whether the media query,
* selectors, or declarations block are the same as those from the preceding block and combining blocks in such cases.
*
* Example:
* $concatenator = new CssConcatenator();
* $concatenator->append(['body'], 'color: blue;');
* $concatenator->append(['body'], 'font-size: 16px;');
* $concatenator->append(['p'], 'margin: 1em 0;');
* $concatenator->append(['ul', 'ol'], 'margin: 1em 0;');
* $concatenator->append(['body'], 'font-size: 14px;', '@media screen and (max-width: 400px)');
* $concatenator->append(['ul', 'ol'], 'margin: 0.75em 0;', '@media screen and (max-width: 400px)');
* $css = $concatenator->getCss();
*
* `$css` (if unminified) would contain the following CSS:
* ` body {
* ` color: blue;
* ` font-size: 16px;
* ` }
* ` p, ul, ol {
* ` margin: 1em 0;
* ` }
* ` @media screen and (max-width: 400px) {
* ` body {
* ` font-size: 14px;
* ` }
* ` ul, ol {
* ` margin: 0.75em 0;
* ` }
* ` }
*
* @internal
*/
class CssConcatenator
{
/**
* Array of media rules in order. Each element is an object with the following properties:
* - string `media` - The media query string, e.g. "@media screen and (max-width:639px)", or an empty string for
* rules not within a media query block;
* - object[] `ruleBlocks` - Array of rule blocks in order, where each element is an object with the following
* properties:
* - mixed[] `selectorsAsKeys` - Array whose keys are selectors for the rule block (values are of no
* significance);
* - string `declarationsBlock` - The property declarations, e.g. "margin-top: 0.5em; padding: 0".
*
* @var array<int, object{
* media: string,
* ruleBlocks: array<int, object{
* selectorsAsKeys: array<string, array-key>,
* declarationsBlock: string
* }>
* }>
*/
private $mediaRules = [];
/**
* Appends a declaration block to the CSS.
*
* @param array<array-key, string> $selectors
* array of selectors for the rule, e.g. ["ul", "ol", "p:first-child"]
* @param string $declarationsBlock
* the property declarations, e.g. "margin-top: 0.5em; padding: 0"
* @param string $media
* the media query for the rule, e.g. "@media screen and (max-width:639px)", or an empty string if none
*/
public function append(array $selectors, string $declarationsBlock, string $media = ''): void
{
$selectorsAsKeys = \array_flip($selectors);
$mediaRule = $this->getOrCreateMediaRuleToAppendTo($media);
$ruleBlocks = $mediaRule->ruleBlocks;
$lastRuleBlock = \end($ruleBlocks);
$hasSameDeclarationsAsLastRule = \is_object($lastRuleBlock)
&& $declarationsBlock === $lastRuleBlock->declarationsBlock;
if ($hasSameDeclarationsAsLastRule) {
$lastRuleBlock->selectorsAsKeys += $selectorsAsKeys;
} else {
$lastRuleBlockSelectors = \is_object($lastRuleBlock) ? $lastRuleBlock->selectorsAsKeys : [];
$hasSameSelectorsAsLastRule = \is_object($lastRuleBlock)
&& self::hasEquivalentSelectors($selectorsAsKeys, $lastRuleBlockSelectors);
if ($hasSameSelectorsAsLastRule) {
$lastDeclarationsBlockWithoutSemicolon = \rtrim(\rtrim($lastRuleBlock->declarationsBlock), ';');
$lastRuleBlock->declarationsBlock = $lastDeclarationsBlockWithoutSemicolon . ';' . $declarationsBlock;
} else {
$mediaRule->ruleBlocks[] = (object)\compact('selectorsAsKeys', 'declarationsBlock');
}
}
}
/**
* @return string
*/
public function getCss(): string
{
return \implode('', \array_map([self::class, 'getMediaRuleCss'], $this->mediaRules));
}
/**
* @param string $media The media query for rules to be appended, e.g. "@media screen and (max-width:639px)",
* or an empty string if none.
*
* @return object{
* media: string,
* ruleBlocks: array<int, object{
* selectorsAsKeys: array<string, array-key>,
* declarationsBlock: string
* }>
* }
*/
private function getOrCreateMediaRuleToAppendTo(string $media): object
{
$lastMediaRule = \end($this->mediaRules);
if (\is_object($lastMediaRule) && $media === $lastMediaRule->media) {
return $lastMediaRule;
}
$newMediaRule = (object)[
'media' => $media,
'ruleBlocks' => [],
];
$this->mediaRules[] = $newMediaRule;
return $newMediaRule;
}
/**
* Tests if two sets of selectors are equivalent (i.e. the same selectors, possibly in a different order).
*
* @param array<string, array-key> $selectorsAsKeys1
* array in which the selectors are the keys, and the values are of no significance
* @param array<string, array-key> $selectorsAsKeys2 another such array
*
* @return bool
*/
private static function hasEquivalentSelectors(array $selectorsAsKeys1, array $selectorsAsKeys2): bool
{
return \count($selectorsAsKeys1) === \count($selectorsAsKeys2)
&& \count($selectorsAsKeys1) === \count($selectorsAsKeys1 + $selectorsAsKeys2);
}
/**
* @param object{
* media: string,
* ruleBlocks: array<int, object{
* selectorsAsKeys: array<string, array-key>,
* declarationsBlock: string
* }>
* } $mediaRule
*
* @return string CSS for the media rule.
*/
private static function getMediaRuleCss(object $mediaRule): string
{
$ruleBlocks = $mediaRule->ruleBlocks;
$css = \implode('', \array_map([self::class, 'getRuleBlockCss'], $ruleBlocks));
$media = $mediaRule->media;
if ($media !== '') {
$css = $media . '{' . $css . '}';
}
return $css;
}
/**
* @param object{selectorsAsKeys: array<string, array-key>, declarationsBlock: string} $ruleBlock
*
* @return string CSS for the rule block.
*/
private static function getRuleBlockCss(object $ruleBlock): string
{
$selectorsAsKeys = $ruleBlock->selectorsAsKeys;
$selectors = \array_keys($selectorsAsKeys);
$declarationsBlock = $ruleBlock->declarationsBlock;
return \implode(',', $selectors) . '{' . $declarationsBlock . '}';
}
}

241
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# Revision History
## 8.4.0
### Features
* Support for PHP 8.x
* PHPDoc annotations
* Allow usage of CSS variables inside color functions (by parsing them as regular functions)
* Use PSR-12 code style
* *No deprecations*
### Bugfixes
* Improved handling of whitespace in `calc()`
* Fix parsing units whose prefix is also a valid unit, like `vmin`
* Allow passing an object to `CSSList#replace`
* Fix PHP 7.3 warnings
* Correctly parse keyframes with `%`
* Don’t convert large numbers to scientific notation
* Allow a file to end after an `@import`
* Preserve case of CSS variables as specced
* Allow identifiers to use escapes the same way as strings
* No longer use `eval` for the comparison in `getSelectorsBySpecificity`, in case it gets passed untrusted input (CVE-2020-13756). Also fixed in 8.3.1, 8.2.1, 8.1.1, 8.0.1, 7.0.4, 6.0.2, 5.2.1, 5.1.3, 5.0.9, 4.0.1, 3.0.1, 2.0.1, 1.0.1.
* Prevent an infinite loop when parsing invalid grid line names
* Remove invalid unit `vm`
* Retain rule order after expanding shorthands
### Backwards-incompatible changes
* PHP ≥ 5.6 is now required
* HHVM compatibility target dropped
## 8.3.0 (2019-02-22)
* Refactor parsing logic to mostly reside in the class files whose data structure is to be parsed (this should eventually allow us to unit-test specific parts of the parsing logic individually).
* Fix error in parsing `calc` expessions when the first operand is a negative number, thanks to @raxbg.
* Support parsing CSS4 colors in hex notation with alpha values, thanks to @raxbg.
* Swallow more errors in lenient mode, thanks to @raxbg.
* Allow specifying arbitrary strings to output before and after declaration blocks, thanks to @westonruter.
* *No backwards-incompatible changes*
* *No deprecations*
## 8.2.0 (2018-07-13)
* Support parsing `calc()`, thanks to @raxbg.
* Support parsing grid-lines, again thanks to @raxbg.
* Support parsing legacy IE filters (`progid:`) in lenient mode, thanks to @FMCorz
* Performance improvements parsing large files, again thanks to @FMCorz
* *No backwards-incompatible changes*
* *No deprecations*
## 8.1.0 (2016-07-19)
* Comments are no longer silently ignored but stored with the object with which they appear (no render support, though). Thanks to @FMCorz.
* The IE hacks using `\0` and `\9` can now be parsed (and rendered) in lenient mode. Thanks (again) to @FMCorz.
* Media queries with or without spaces before the query are parsed. Still no *real* parsing support, though. Sorry…
* PHPUnit is now listed as a dev-dependency in composer.json.
* *No backwards-incompatible changes*
* *No deprecations*
## 8.0.0 (2016-06-30)
* Store source CSS line numbers in tokens and parsing exceptions.
* *No deprecations*
### Backwards-incompatible changes
* Unrecoverable parser errors throw an exception of type `Sabberworm\CSS\Parsing\SourceException` instead of `\Exception`.
## 7.0.3 (2016-04-27)
* Fixed parsing empty CSS when multibyte is off
* *No backwards-incompatible changes*
* *No deprecations*
## 7.0.2 (2016-02-11)
* 150 time performance boost thanks to @[ossinkine](https://github.com/ossinkine)
* *No backwards-incompatible changes*
* *No deprecations*
## 7.0.1 (2015-12-25)
* No more suppressed `E_NOTICE`
* *No backwards-incompatible changes*
* *No deprecations*
## 7.0.0 (2015-08-24)
* Compatibility with PHP 7. Well timed, eh?
* *No deprecations*
### Backwards-incompatible changes
* The `Sabberworm\CSS\Value\String` class has been renamed to `Sabberworm\CSS\Value\CSSString`.
## 6.0.1 (2015-08-24)
* Remove some declarations in interfaces incompatible with PHP 5.3 (< 5.3.9)
* *No deprecations*
## 6.0.0 (2014-07-03)
* Format output using Sabberworm\CSS\OutputFormat
* *No backwards-incompatible changes*
### Deprecations
* The parse() method replaces __toString with an optional argument (instance of the OutputFormat class)
## 5.2.0 (2014-06-30)
* Support removing a selector from a declaration block using `$oBlock->removeSelector($mSelector)`
* Introduce a specialized exception (Sabberworm\CSS\Parsing\OuputException) for exceptions during output rendering
* *No deprecations*
#### Backwards-incompatible changes
* Outputting a declaration block that has no selectors throws an OuputException instead of outputting an invalid ` {…}` into the CSS document.
## 5.1.2 (2013-10-30)
* Remove the use of consumeUntil in comment parsing. This makes it possible to parse comments such as `/** Perfectly valid **/`
* Add fr relative size unit
* Fix some issues with HHVM
* *No backwards-incompatible changes*
* *No deprecations*
## 5.1.1 (2013-10-28)
* Updated CHANGELOG.md to reflect changes since 5.0.4
* *No backwards-incompatible changes*
* *No deprecations*
## 5.1.0 (2013-10-24)
* Performance enhancements by Michael M Slusarz
* More rescue entry points for lenient parsing (unexpected tokens between declaration blocks and unclosed comments)
* *No backwards-incompatible changes*
* *No deprecations*
## 5.0.8 (2013-08-15)
* Make default settings’ multibyte parsing option dependent on whether or not the mbstring extension is actually installed.
* *No backwards-incompatible changes*
* *No deprecations*
## 5.0.7 (2013-08-04)
* Fix broken decimal point output optimization
* *No backwards-incompatible changes*
* *No deprecations*
## 5.0.6 (2013-05-31)
* Fix broken unit test
* *No backwards-incompatible changes*
* *No deprecations*
## 5.0.5 (2013-04-17)
* Initial support for lenient parsing (setting this parser option will catch some exceptions internally and recover the parser’s state as neatly as possible).
* *No backwards-incompatible changes*
* *No deprecations*
## 5.0.4 (2013-03-21)
* Don’t output floats with locale-aware separator chars
* *No backwards-incompatible changes*
* *No deprecations*
## 5.0.3 (2013-03-21)
* More size units recognized
* *No backwards-incompatible changes*
* *No deprecations*
## 5.0.2 (2013-03-21)
* CHANGELOG.md file added to distribution
* *No backwards-incompatible changes*
* *No deprecations*
## 5.0.1 (2013-03-20)
* Internal cleanup
* *No backwards-incompatible changes*
* *No deprecations*
## 5.0.0 (2013-03-20)
* Correctly parse all known CSS 3 units (including Hz and kHz).
* Output RGB colors in short (#aaa or #ababab) notation
* Be case-insensitive when parsing identifiers.
* *No deprecations*
### Backwards-incompatible changes
* `Sabberworm\CSS\Value\Color`’s `__toString` method overrides `CSSList`’s to maybe return something other than `type(value, …)` (see above).
## 4.0.0 (2013-03-19)
* Support for more @-rules
* Generic interface `Sabberworm\CSS\Property\AtRule`, implemented by all @-rule classes
* *No deprecations*
### Backwards-incompatible changes
* `Sabberworm\CSS\RuleSet\AtRule` renamed to `Sabberworm\CSS\RuleSet\AtRuleSet`
* `Sabberworm\CSS\CSSList\MediaQuery` renamed to `Sabberworm\CSS\RuleSet\CSSList\AtRuleBlockList` with differing semantics and API (which also works for other block-list-based @-rules like `@supports`).
## 3.0.0 (2013-03-06)
* Support for lenient parsing (on by default)
* *No deprecations*
### Backwards-incompatible changes
* All properties (like whether or not to use `mb_`-functions, which default charset to use and – new – whether or not to be forgiving when parsing) are now encapsulated in an instance of `Sabberworm\CSS\Settings` which can be passed as the second argument to `Sabberworm\CSS\Parser->__construct()`.
* Specifying a charset as the second argument to `Sabberworm\CSS\Parser->__construct()` is no longer supported. Use `Sabberworm\CSS\Settings::create()->withDefaultCharset('some-charset')` instead.
* Setting `Sabberworm\CSS\Parser->bUseMbFunctions` has no effect. Use `Sabberworm\CSS\Settings::create()->withMultibyteSupport(true/false)` instead.
* `Sabberworm\CSS\Parser->parse()` may throw a `Sabberworm\CSS\Parsing\UnexpectedTokenException` when in strict parsing mode.
## 2.0.0 (2013-01-29)
* Allow multiple rules of the same type per rule set
### Backwards-incompatible changes
* `Sabberworm\CSS\RuleSet->getRules()` returns an index-based array instead of an associative array. Use `Sabberworm\CSS\RuleSet->getRulesAssoc()` (which eliminates duplicate rules and lets the later rule of the same name win).
* `Sabberworm\CSS\RuleSet->removeRule()` works as it did before except when passed an instance of `Sabberworm\CSS\Rule\Rule`, in which case it would only remove the exact rule given instead of all the rules of the same type. To get the old behaviour, use `Sabberworm\CSS\RuleSet->removeRule($oRule->getRule()`;
## 1.0
Initial release of a stable public API.
## 0.9
Last version not to use PSR-0 project organization semantics.

21
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MIT License
Copyright (c) 2011 Raphael Schweikert, https://www.sabberworm.com/
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

632
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# PHP CSS Parser
[![Build Status](https://github.com/sabberworm/PHP-CSS-Parser/workflows/CI/badge.svg?branch=master)](https://github.com/sabberworm/PHP-CSS-Parser/actions/)
A Parser for CSS Files written in PHP. Allows extraction of CSS files into a data structure, manipulation of said structure and output as (optimized) CSS.
## Usage
### Installation using Composer
```bash
composer require sabberworm/php-css-parser
```
### Extraction
To use the CSS Parser, create a new instance. The constructor takes the following form:
```php
new \Sabberworm\CSS\Parser($css);
```
To read a file, for example, you’d do the following:
```php
$parser = new \Sabberworm\CSS\Parser(file_get_contents('somefile.css'));
$cssDocument = $parser->parse();
```
The resulting CSS document structure can be manipulated prior to being output.
### Options
#### Charset
The charset option is used only if no `@charset` declaration is found in the CSS file. UTF-8 is the default, so you won’t have to create a settings object at all if you don’t intend to change that.
```php
$settings = \Sabberworm\CSS\Settings::create()
->withDefaultCharset('windows-1252');
$parser = new \Sabberworm\CSS\Parser($css, $settings);
```
#### Strict parsing
To have the parser choke on invalid rules, supply a thusly configured `\Sabberworm\CSS\Settings` object:
```php
$parser = new \Sabberworm\CSS\Parser(
file_get_contents('somefile.css'),
\Sabberworm\CSS\Settings::create()->beStrict()
);
```
#### Disable multibyte functions
To achieve faster parsing, you can choose to have PHP-CSS-Parser use regular string functions instead of `mb_*` functions. This should work fine in most cases, even for UTF-8 files, as all the multibyte characters are in string literals. Still it’s not recommended using this with input you have no control over as it’s not thoroughly covered by test cases.
```php
$settings = \Sabberworm\CSS\Settings::create()->withMultibyteSupport(false);
$parser = new \Sabberworm\CSS\Parser($css, $settings);
```
### Manipulation
The resulting data structure consists mainly of five basic types: `CSSList`, `RuleSet`, `Rule`, `Selector` and `Value`. There are two additional types used: `Import` and `Charset`, which you won’t use often.
#### CSSList
`CSSList` represents a generic CSS container, most likely containing declaration blocks (rule sets with a selector), but it may also contain at-rules, charset declarations, etc. `CSSList` has the following concrete subtypes:
* `Document` – representing the root of a CSS file.
* `MediaQuery` – represents a subsection of a `CSSList` that only applies to an output device matching the contained media query.
To access the items stored in a `CSSList` – like the document you got back when calling `$parser->parse()` –, use `getContents()`, then iterate over that collection and use instanceof to check whether you’re dealing with another `CSSList`, a `RuleSet`, a `Import` or a `Charset`.
To append a new item (selector, media query, etc.) to an existing `CSSList`, construct it using the constructor for this class and use the `append($oItem)` method.
#### RuleSet
`RuleSet` is a container for individual rules. The most common form of a rule set is one constrained by a selector. The following concrete subtypes exist:
* `AtRuleSet` – for generic at-rules which do not match the ones specifically mentioned like `@import`, `@charset` or `@media`. A common example for this is `@font-face`.
* `DeclarationBlock` – a `RuleSet` constrained by a `Selector`; contains an array of selector objects (comma-separated in the CSS) as well as the rules to be applied to the matching elements.
Note: A `CSSList` can contain other `CSSList`s (and `Import`s as well as a `Charset`), while a `RuleSet` can only contain `Rule`s.
If you want to manipulate a `RuleSet`, use the methods `addRule(Rule $rule)`, `getRules()` and `removeRule($rule)` (which accepts either a `Rule` instance or a rule name; optionally suffixed by a dash to remove all related rules).
#### Rule
`Rule`s just have a key (the rule) and a value. These values are all instances of a `Value`.
#### Value
`Value` is an abstract class that only defines the `render` method. The concrete subclasses for atomic value types are:
* `Size` – consists of a numeric `size` value and a unit.
* `Color` – colors can be input in the form #rrggbb, #rgb or schema(val1, val2, …) but are always stored as an array of ('s' => val1, 'c' => val2, 'h' => val3, …) and output in the second form.
* `CSSString` – this is just a wrapper for quoted strings to distinguish them from keywords; always output with double quotes.
* `URL` – URLs in CSS; always output in URL("") notation.
There is another abstract subclass of `Value`, `ValueList`. A `ValueList` represents a lists of `Value`s, separated by some separation character (mostly `,`, whitespace, or `/`). There are two types of `ValueList`s:
* `RuleValueList` – The default type, used to represent all multi-valued rules like `font: bold 12px/3 Helvetica, Verdana, sans-serif;` (where the value would be a whitespace-separated list of the primitive value `bold`, a slash-separated list and a comma-separated list).
* `CSSFunction` – A special kind of value that also contains a function name and where the values are the function’s arguments. Also handles equals-sign-separated argument lists like `filter: alpha(opacity=90);`.
#### Convenience methods
There are a few convenience methods on Document to ease finding, manipulating and deleting rules:
* `getAllDeclarationBlocks()` – does what it says; no matter how deeply nested your selectors are. Aliased as `getAllSelectors()`.
* `getAllRuleSets()` – does what it says; no matter how deeply nested your rule sets are.
* `getAllValues()` – finds all `Value` objects inside `Rule`s.
## To-Do
* More convenience methods (like `selectorsWithElement($sId/Class/TagName)`, `attributesOfType($type)`, `removeAttributesOfType($type)`)
* Real multibyte support. Currently, only multibyte charsets whose first 255 code points take up only one byte and are identical with ASCII are supported (yes, UTF-8 fits this description).
* Named color support (using `Color` instead of an anonymous string literal)
## Use cases
### Use `Parser` to prepend an ID to all selectors
```php
$myId = "#my_id";
$parser = new \Sabberworm\CSS\Parser($css);
$cssDocument = $parser->parse();
foreach ($cssDocument->getAllDeclarationBlocks() as $block) {
foreach ($block->getSelectors() as $selector) {
// Loop over all selector parts (the comma-separated strings in a
// selector) and prepend the ID.
$selector->setSelector($myId.' '.$selector->getSelector());
}
}
```
### Shrink all absolute sizes to half
```php
$parser = new \Sabberworm\CSS\Parser($css);
$cssDocument = $parser->parse();
foreach ($cssDocument->getAllValues() as $value) {
if ($value instanceof CSSSize && !$value->isRelative()) {
$value->setSize($value->getSize() / 2);
}
}
```
### Remove unwanted rules
```php
$parser = new \Sabberworm\CSS\Parser($css);
$cssDocument = $parser->parse();
foreach($cssDocument->getAllRuleSets() as $oRuleSet) {
// Note that the added dash will make this remove all rules starting with
// `font-` (like `font-size`, `font-weight`, etc.) as well as a potential
// `font-rule`.
$oRuleSet->removeRule('font-');
$oRuleSet->removeRule('cursor');
}
```
### Output
To output the entire CSS document into a variable, just use `->render()`:
```php
$parser = new \Sabberworm\CSS\Parser(file_get_contents('somefile.css'));
$cssDocument = $parser->parse();
print $cssDocument->render();
```
If you want to format the output, pass an instance of type `\Sabberworm\CSS\OutputFormat`:
```php
$format = \Sabberworm\CSS\OutputFormat::create()
->indentWithSpaces(4)->setSpaceBetweenRules("\n");
print $cssDocument->render($format);
```
Or use one of the predefined formats:
```php
print $cssDocument->render(Sabberworm\CSS\OutputFormat::createPretty());
print $cssDocument->render(Sabberworm\CSS\OutputFormat::createCompact());
```
To see what you can do with output formatting, look at the tests in `tests/OutputFormatTest.php`.
## Examples
### Example 1 (At-Rules)
#### Input
```css
@charset "utf-8";
@font-face {
font-family: "CrassRoots";
src: url("../media/cr.ttf");
}
html, body {
font-size: 1.6em;
}
@keyframes mymove {
from { top: 0px; }
to { top: 200px; }
}
```
#### Structure (`var_dump()`)
```php
class Sabberworm\CSS\CSSList\Document#4 (2) {
protected $aContents =>
array(4) {
[0] =>
class Sabberworm\CSS\Property\Charset#6 (2) {
private $sCharset =>
class Sabberworm\CSS\Value\CSSString#5 (2) {
private $sString =>
string(5) "utf-8"
protected $iLineNo =>
int(1)
}
protected $iLineNo =>
int(1)
}
[1] =>
class Sabberworm\CSS\RuleSet\AtRuleSet#7 (4) {
private $sType =>
string(9) "font-face"
private $sArgs =>
string(0) ""
private $aRules =>
array(2) {
'font-family' =>
array(1) {
[0] =>
class Sabberworm\CSS\Rule\Rule#8 (4) {
private $sRule =>
string(11) "font-family"
private $mValue =>
class Sabberworm\CSS\Value\CSSString#9 (2) {
private $sString =>
string(10) "CrassRoots"
protected $iLineNo =>
int(4)
}
private $bIsImportant =>
bool(false)
protected $iLineNo =>
int(4)
}
}
'src' =>
array(1) {
[0] =>
class Sabberworm\CSS\Rule\Rule#10 (4) {
private $sRule =>
string(3) "src"
private $mValue =>
class Sabberworm\CSS\Value\URL#11 (2) {
private $oURL =>
class Sabberworm\CSS\Value\CSSString#12 (2) {
private $sString =>
string(15) "../media/cr.ttf"
protected $iLineNo =>
int(5)
}
protected $iLineNo =>
int(5)
}
private $bIsImportant =>
bool(false)
protected $iLineNo =>
int(5)
}
}
}
protected $iLineNo =>
int(3)
}
[2] =>
class Sabberworm\CSS\RuleSet\DeclarationBlock#13 (3) {
private $aSelectors =>
array(2) {
[0] =>
class Sabberworm\CSS\Property\Selector#14 (2) {
private $sSelector =>
string(4) "html"
private $iSpecificity =>
NULL
}
[1] =>
class Sabberworm\CSS\Property\Selector#15 (2) {
private $sSelector =>
string(4) "body"
private $iSpecificity =>
NULL
}
}
private $aRules =>
array(1) {
'font-size' =>
array(1) {
[0] =>
class Sabberworm\CSS\Rule\Rule#16 (4) {
private $sRule =>
string(9) "font-size"
private $mValue =>
class Sabberworm\CSS\Value\Size#17 (4) {
private $fSize =>
double(1.6)
private $sUnit =>
string(2) "em"
private $bIsColorComponent =>
bool(false)
protected $iLineNo =>
int(9)
}
private $bIsImportant =>
bool(false)
protected $iLineNo =>
int(9)
}
}
}
protected $iLineNo =>
int(8)
}
[3] =>
class Sabberworm\CSS\CSSList\KeyFrame#18 (4) {
private $vendorKeyFrame =>
string(9) "keyframes"
private $animationName =>
string(6) "mymove"
protected $aContents =>
array(2) {
[0] =>
class Sabberworm\CSS\RuleSet\DeclarationBlock#19 (3) {
private $aSelectors =>
array(1) {
[0] =>
class Sabberworm\CSS\Property\Selector#20 (2) {
private $sSelector =>
string(4) "from"
private $iSpecificity =>
NULL
}
}
private $aRules =>
array(1) {
'top' =>
array(1) {
[0] =>
class Sabberworm\CSS\Rule\Rule#21 (4) {
private $sRule =>
string(3) "top"
private $mValue =>
class Sabberworm\CSS\Value\Size#22 (4) {
private $fSize =>
double(0)
private $sUnit =>
string(2) "px"
private $bIsColorComponent =>
bool(false)
protected $iLineNo =>
int(13)
}
private $bIsImportant =>
bool(false)
protected $iLineNo =>
int(13)
}
}
}
protected $iLineNo =>
int(13)
}
[1] =>
class Sabberworm\CSS\RuleSet\DeclarationBlock#23 (3) {
private $aSelectors =>
array(1) {
[0] =>
class Sabberworm\CSS\Property\Selector#24 (2) {
private $sSelector =>
string(2) "to"
private $iSpecificity =>
NULL
}
}
private $aRules =>
array(1) {
'top' =>
array(1) {
[0] =>
class Sabberworm\CSS\Rule\Rule#25 (4) {
private $sRule =>
string(3) "top"
private $mValue =>
class Sabberworm\CSS\Value\Size#26 (4) {
private $fSize =>
double(200)
private $sUnit =>
string(2) "px"
private $bIsColorComponent =>
bool(false)
protected $iLineNo =>
int(14)
}
private $bIsImportant =>
bool(false)
protected $iLineNo =>
int(14)
}
}
}
protected $iLineNo =>
int(14)
}
}
protected $iLineNo =>
int(12)
}
}
protected $iLineNo =>
int(1)
}
```
#### Output (`render()`)
```css
@charset "utf-8";
@font-face {font-family: "CrassRoots";src: url("../media/cr.ttf");}
html, body {font-size: 1.6em;}
@keyframes mymove {from {top: 0px;} to {top: 200px;}}
```
### Example 2 (Values)
#### Input
```css
#header {
margin: 10px 2em 1cm 2%;
font-family: Verdana, Helvetica, "Gill Sans", sans-serif;
color: red !important;
}
```
#### Structure (`var_dump()`)
```php
class Sabberworm\CSS\CSSList\Document#4 (2) {
protected $aContents =>
array(1) {
[0] =>
class Sabberworm\CSS\RuleSet\DeclarationBlock#5 (3) {
private $aSelectors =>
array(1) {
[0] =>
class Sabberworm\CSS\Property\Selector#6 (2) {
private $sSelector =>
string(7) "#header"
private $iSpecificity =>
NULL
}
}
private $aRules =>
array(3) {
'margin' =>
array(1) {
[0] =>
class Sabberworm\CSS\Rule\Rule#7 (4) {
private $sRule =>
string(6) "margin"
private $mValue =>
class Sabberworm\CSS\Value\RuleValueList#12 (3) {
protected $aComponents =>
array(4) {
[0] =>
class Sabberworm\CSS\Value\Size#8 (4) {
private $fSize =>
double(10)
private $sUnit =>
string(2) "px"
private $bIsColorComponent =>
bool(false)
protected $iLineNo =>
int(2)
}
[1] =>
class Sabberworm\CSS\Value\Size#9 (4) {
private $fSize =>
double(2)
private $sUnit =>
string(2) "em"
private $bIsColorComponent =>
bool(false)
protected $iLineNo =>
int(2)
}
[2] =>
class Sabberworm\CSS\Value\Size#10 (4) {
private $fSize =>
double(1)
private $sUnit =>
string(2) "cm"
private $bIsColorComponent =>
bool(false)
protected $iLineNo =>
int(2)
}
[3] =>
class Sabberworm\CSS\Value\Size#11 (4) {
private $fSize =>
double(2)
private $sUnit =>
string(1) "%"
private $bIsColorComponent =>
bool(false)
protected $iLineNo =>
int(2)
}
}
protected $sSeparator =>
string(1) " "
protected $iLineNo =>
int(2)
}
private $bIsImportant =>
bool(false)
protected $iLineNo =>
int(2)
}
}
'font-family' =>
array(1) {
[0] =>
class Sabberworm\CSS\Rule\Rule#13 (4) {
private $sRule =>
string(11) "font-family"
private $mValue =>
class Sabberworm\CSS\Value\RuleValueList#15 (3) {
protected $aComponents =>
array(4) {
[0] =>
string(7) "Verdana"
[1] =>
string(9) "Helvetica"
[2] =>
class Sabberworm\CSS\Value\CSSString#14 (2) {
private $sString =>
string(9) "Gill Sans"
protected $iLineNo =>
int(3)
}
[3] =>
string(10) "sans-serif"
}
protected $sSeparator =>
string(1) ","
protected $iLineNo =>
int(3)
}
private $bIsImportant =>
bool(false)
protected $iLineNo =>
int(3)
}
}
'color' =>
array(1) {
[0] =>
class Sabberworm\CSS\Rule\Rule#16 (4) {
private $sRule =>
string(5) "color"
private $mValue =>
string(3) "red"
private $bIsImportant =>
bool(true)
protected $iLineNo =>
int(4)
}
}
}
protected $iLineNo =>
int(1)
}
}
protected $iLineNo =>
int(1)
}
```
#### Output (`render()`)
```css
#header {margin: 10px 2em 1cm 2%;font-family: Verdana,Helvetica,"Gill Sans",sans-serif;color: red !important;}
```
## Contributors/Thanks to
* [oliverklee](https://github.com/oliverklee) for lots of refactorings, code modernizations and CI integrations
* [raxbg](https://github.com/raxbg) for contributions to parse `calc`, grid lines, and various bugfixes.
* [westonruter](https://github.com/westonruter) for bugfixes and improvements.
* [FMCorz](https://github.com/FMCorz) for many patches and suggestions, for being able to parse comments and IE hacks (in lenient mode).
* [Lullabot](https://github.com/Lullabot) for a patch that allows to know the line number for each parsed token.
* [ju1ius](https://github.com/ju1ius) for the specificity parsing code and the ability to expand/compact shorthand properties.
* [ossinkine](https://github.com/ossinkine) for a 150 time performance boost.
* [GaryJones](https://github.com/GaryJones) for lots of input and [https://css-specificity.info/](https://css-specificity.info/).
* [docteurklein](https://github.com/docteurklein) for output formatting and `CSSList->remove()` inspiration.
* [nicolopignatelli](https://github.com/nicolopignatelli) for PSR-0 compatibility.
* [diegoembarcadero](https://github.com/diegoembarcadero) for keyframe at-rule parsing.
* [goetas](https://github.com/goetas) for @namespace at-rule support.
* [View full list](https://github.com/sabberworm/PHP-CSS-Parser/contributors)
## Misc
* Legacy Support: The latest pre-PSR-0 version of this project can be checked with the `0.9.0` tag.
* Running Tests: To run all unit tests for this project, run `composer install` to install phpunit and use `./vendor/bin/phpunit`.

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{
"name": "sabberworm/php-css-parser",
"type": "library",
"description": "Parser for CSS Files written in PHP",
"keywords": [
"parser",
"css",
"stylesheet"
],
"homepage": "https://www.sabberworm.com/blog/2010/6/10/php-css-parser",
"license": "MIT",
"authors": [
{
"name": "Raphael Schweikert"
}
],
"require": {
"php": ">=5.6.20",
"ext-iconv": "*"
},
"require-dev": {
"phpunit/phpunit": "^4.8.36",
"codacy/coverage": "^1.4"
},
"suggest": {
"ext-mbstring": "for parsing UTF-8 CSS"
},
"autoload": {
"psr-4": {
"Sabberworm\\CSS\\": "src/"
}
},
"autoload-dev": {
"psr-4": {
"Sabberworm\\CSS\\Tests\\": "tests/"
}
},
"scripts": {
"ci": [
"@ci:static"
],
"ci:php:fixer": "@php ./.phive/php-cs-fixer.phar --config=config/php-cs-fixer.php fix --dry-run -v --show-progress=dots bin src tests",
"ci:php:sniffer": "@php ./.phive/phpcs.phar --standard=config/phpcs.xml bin src tests",
"ci:php:stan": "@php ./.phive/phpstan.phar --configuration=config/phpstan.neon",
"ci:static": [
"@ci:php:fixer",
"@ci:php:sniffer",
"@ci:php:stan"
],
"fix:php": [
"@fix:php:fixer",
"@fix:php:sniffer"
],
"fix:php:fixer": "@php ./.phive/php-cs-fixer.phar --config=config/php-cs-fixer.php fix bin src tests",
"fix:php:sniffer": "@php ./.phive/phpcbf.phar --standard=config/phpcs.xml bin src tests",
"phpstan:baseline": "@php ./.phive/phpstan.phar --configuration=config/phpstan.neon --generate-baseline=config/phpstan-baseline.neon"
},
"scripts-descriptions": {
"ci": "Runs all dynamic and static code checks (i.e. currently, only the static checks).",
"ci:php:fixer": "Checks the code style with PHP CS Fixer.",
"ci:php:sniffer": "Checks the code style with PHP_CodeSniffer.",
"ci:php:stan": "Checks the types with PHPStan.",
"ci:static": "Runs all static code analysis checks for the code.",
"fix:php": "Autofixes all autofixable issues in the PHP code.",
"fix:php:fixer": "Fixes autofixable issues found by PHP CS Fixer.",
"fix:php:sniffer": "Fixes autofixable issues found by PHP_CodeSniffer.",
"phpstand:baseline": "Updates the PHPStan baseline file to match the code."
}
}

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<?php
namespace Sabberworm\CSS\CSSList;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Property\AtRule;
/**
* A `BlockList` constructed by an unknown at-rule. `@media` rules are rendered into `AtRuleBlockList` objects.
*/
class AtRuleBlockList extends CSSBlockList implements AtRule
{
/**
* @var string
*/
private $sType;
/**
* @var string
*/
private $sArgs;
/**
* @param string $sType
* @param string $sArgs
* @param int $iLineNo
*/
public function __construct($sType, $sArgs = '', $iLineNo = 0)
{
parent::__construct($iLineNo);
$this->sType = $sType;
$this->sArgs = $sArgs;
}
/**
* @return string
*/
public function atRuleName()
{
return $this->sType;
}
/**
* @return string
*/
public function atRuleArgs()
{
return $this->sArgs;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
$sArgs = $this->sArgs;
if ($sArgs) {
$sArgs = ' ' . $sArgs;
}
$sResult = $oOutputFormat->sBeforeAtRuleBlock;
$sResult .= "@{$this->sType}$sArgs{$oOutputFormat->spaceBeforeOpeningBrace()}{";
$sResult .= parent::render($oOutputFormat);
$sResult .= '}';
$sResult .= $oOutputFormat->sAfterAtRuleBlock;
return $sResult;
}
/**
* @return bool
*/
public function isRootList()
{
return false;
}
}

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<?php
namespace Sabberworm\CSS\CSSList;
use Sabberworm\CSS\Property\Selector;
use Sabberworm\CSS\Rule\Rule;
use Sabberworm\CSS\RuleSet\DeclarationBlock;
use Sabberworm\CSS\RuleSet\RuleSet;
use Sabberworm\CSS\Value\CSSFunction;
use Sabberworm\CSS\Value\Value;
use Sabberworm\CSS\Value\ValueList;
/**
* A `CSSBlockList` is a `CSSList` whose `DeclarationBlock`s are guaranteed to contain valid declaration blocks or
* at-rules.
*
* Most `CSSList`s conform to this category but some at-rules (such as `@keyframes`) do not.
*/
abstract class CSSBlockList extends CSSList
{
/**
* @param int $iLineNo
*/
public function __construct($iLineNo = 0)
{
parent::__construct($iLineNo);
}
/**
* @param array<int, DeclarationBlock> $aResult
*
* @return void
*/
protected function allDeclarationBlocks(array &$aResult)
{
foreach ($this->aContents as $mContent) {
if ($mContent instanceof DeclarationBlock) {
$aResult[] = $mContent;
} elseif ($mContent instanceof CSSBlockList) {
$mContent->allDeclarationBlocks($aResult);
}
}
}
/**
* @param array<int, RuleSet> $aResult
*
* @return void
*/
protected function allRuleSets(array &$aResult)
{
foreach ($this->aContents as $mContent) {
if ($mContent instanceof RuleSet) {
$aResult[] = $mContent;
} elseif ($mContent instanceof CSSBlockList) {
$mContent->allRuleSets($aResult);
}
}
}
/**
* @param CSSList|Rule|RuleSet|Value $oElement
* @param array<int, Value> $aResult
* @param string|null $sSearchString
* @param bool $bSearchInFunctionArguments
*
* @return void
*/
protected function allValues($oElement, array &$aResult, $sSearchString = null, $bSearchInFunctionArguments = false)
{
if ($oElement instanceof CSSBlockList) {
foreach ($oElement->getContents() as $oContent) {
$this->allValues($oContent, $aResult, $sSearchString, $bSearchInFunctionArguments);
}
} elseif ($oElement instanceof RuleSet) {
foreach ($oElement->getRules($sSearchString) as $oRule) {
$this->allValues($oRule, $aResult, $sSearchString, $bSearchInFunctionArguments);
}
} elseif ($oElement instanceof Rule) {
$this->allValues($oElement->getValue(), $aResult, $sSearchString, $bSearchInFunctionArguments);
} elseif ($oElement instanceof ValueList) {
if ($bSearchInFunctionArguments || !($oElement instanceof CSSFunction)) {
foreach ($oElement->getListComponents() as $mComponent) {
$this->allValues($mComponent, $aResult, $sSearchString, $bSearchInFunctionArguments);
}
}
} else {
// Non-List `Value` or `CSSString` (CSS identifier)
$aResult[] = $oElement;
}
}
/**
* @param array<int, Selector> $aResult
* @param string|null $sSpecificitySearch
*
* @return void
*/
protected function allSelectors(array &$aResult, $sSpecificitySearch = null)
{
/** @var array<int, DeclarationBlock> $aDeclarationBlocks */
$aDeclarationBlocks = [];
$this->allDeclarationBlocks($aDeclarationBlocks);
foreach ($aDeclarationBlocks as $oBlock) {
foreach ($oBlock->getSelectors() as $oSelector) {
if ($sSpecificitySearch === null) {
$aResult[] = $oSelector;
} else {
$sComparator = '===';
$aSpecificitySearch = explode(' ', $sSpecificitySearch);
$iTargetSpecificity = $aSpecificitySearch[0];
if (count($aSpecificitySearch) > 1) {
$sComparator = $aSpecificitySearch[0];
$iTargetSpecificity = $aSpecificitySearch[1];
}
$iTargetSpecificity = (int)$iTargetSpecificity;
$iSelectorSpecificity = $oSelector->getSpecificity();
$bMatches = false;
switch ($sComparator) {
case '<=':
$bMatches = $iSelectorSpecificity <= $iTargetSpecificity;
break;
case '<':
$bMatches = $iSelectorSpecificity < $iTargetSpecificity;
break;
case '>=':
$bMatches = $iSelectorSpecificity >= $iTargetSpecificity;
break;
case '>':
$bMatches = $iSelectorSpecificity > $iTargetSpecificity;
break;
default:
$bMatches = $iSelectorSpecificity === $iTargetSpecificity;
break;
}
if ($bMatches) {
$aResult[] = $oSelector;
}
}
}
}
}
}

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<?php
namespace Sabberworm\CSS\CSSList;
use Sabberworm\CSS\Comment\Comment;
use Sabberworm\CSS\Comment\Commentable;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\SourceException;
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
use Sabberworm\CSS\Property\AtRule;
use Sabberworm\CSS\Property\Charset;
use Sabberworm\CSS\Property\CSSNamespace;
use Sabberworm\CSS\Property\Import;
use Sabberworm\CSS\Property\Selector;
use Sabberworm\CSS\Renderable;
use Sabberworm\CSS\RuleSet\AtRuleSet;
use Sabberworm\CSS\RuleSet\DeclarationBlock;
use Sabberworm\CSS\RuleSet\RuleSet;
use Sabberworm\CSS\Settings;
use Sabberworm\CSS\Value\CSSString;
use Sabberworm\CSS\Value\URL;
use Sabberworm\CSS\Value\Value;
/**
* A `CSSList` is the most generic container available. Its contents include `RuleSet` as well as other `CSSList`
* objects.
*
* Also, it may contain `Import` and `Charset` objects stemming from at-rules.
*/
abstract class CSSList implements Renderable, Commentable
{
/**
* @var array<array-key, Comment>
*/
protected $aComments;
/**
* @var array<int, RuleSet|CSSList|Import|Charset>
*/
protected $aContents;
/**
* @var int
*/
protected $iLineNo;
/**
* @param int $iLineNo
*/
public function __construct($iLineNo = 0)
{
$this->aComments = [];
$this->aContents = [];
$this->iLineNo = $iLineNo;
}
/**
* @return void
*
* @throws UnexpectedTokenException
* @throws SourceException
*/
public static function parseList(ParserState $oParserState, CSSList $oList)
{
$bIsRoot = $oList instanceof Document;
if (is_string($oParserState)) {
$oParserState = new ParserState($oParserState, Settings::create());
}
$bLenientParsing = $oParserState->getSettings()->bLenientParsing;
while (!$oParserState->isEnd()) {
$comments = $oParserState->consumeWhiteSpace();
$oListItem = null;
if ($bLenientParsing) {
try {
$oListItem = self::parseListItem($oParserState, $oList);
} catch (UnexpectedTokenException $e) {
$oListItem = false;
}
} else {
$oListItem = self::parseListItem($oParserState, $oList);
}
if ($oListItem === null) {
// List parsing finished
return;
}
if ($oListItem) {
$oListItem->setComments($comments);
$oList->append($oListItem);
}
$oParserState->consumeWhiteSpace();
}
if (!$bIsRoot && !$bLenientParsing) {
throw new SourceException("Unexpected end of document", $oParserState->currentLine());
}
}
/**
* @return AtRuleBlockList|KeyFrame|Charset|CSSNamespace|Import|AtRuleSet|DeclarationBlock|null|false
*
* @throws SourceException
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
private static function parseListItem(ParserState $oParserState, CSSList $oList)
{
$bIsRoot = $oList instanceof Document;
if ($oParserState->comes('@')) {
$oAtRule = self::parseAtRule($oParserState);
if ($oAtRule instanceof Charset) {
if (!$bIsRoot) {
throw new UnexpectedTokenException(
'@charset may only occur in root document',
'',
'custom',
$oParserState->currentLine()
);
}
if (count($oList->getContents()) > 0) {
throw new UnexpectedTokenException(
'@charset must be the first parseable token in a document',
'',
'custom',
$oParserState->currentLine()
);
}
$oParserState->setCharset($oAtRule->getCharset()->getString());
}
return $oAtRule;
} elseif ($oParserState->comes('}')) {
if (!$oParserState->getSettings()->bLenientParsing) {
throw new UnexpectedTokenException('CSS selector', '}', 'identifier', $oParserState->currentLine());
} else {
if ($bIsRoot) {
if ($oParserState->getSettings()->bLenientParsing) {
return DeclarationBlock::parse($oParserState);
} else {
throw new SourceException("Unopened {", $oParserState->currentLine());
}
} else {
return null;
}
}
} else {
return DeclarationBlock::parse($oParserState, $oList);
}
}
/**
* @param ParserState $oParserState
*
* @return AtRuleBlockList|KeyFrame|Charset|CSSNamespace|Import|AtRuleSet|null
*
* @throws SourceException
* @throws UnexpectedTokenException
* @throws UnexpectedEOFException
*/
private static function parseAtRule(ParserState $oParserState)
{
$oParserState->consume('@');
$sIdentifier = $oParserState->parseIdentifier();
$iIdentifierLineNum = $oParserState->currentLine();
$oParserState->consumeWhiteSpace();
if ($sIdentifier === 'import') {
$oLocation = URL::parse($oParserState);
$oParserState->consumeWhiteSpace();
$sMediaQuery = null;
if (!$oParserState->comes(';')) {
$sMediaQuery = trim($oParserState->consumeUntil([';', ParserState::EOF]));
}
$oParserState->consumeUntil([';', ParserState::EOF], true, true);
return new Import($oLocation, $sMediaQuery ?: null, $iIdentifierLineNum);
} elseif ($sIdentifier === 'charset') {
$sCharset = CSSString::parse($oParserState);
$oParserState->consumeWhiteSpace();
$oParserState->consumeUntil([';', ParserState::EOF], true, true);
return new Charset($sCharset, $iIdentifierLineNum);
} elseif (self::identifierIs($sIdentifier, 'keyframes')) {
$oResult = new KeyFrame($iIdentifierLineNum);
$oResult->setVendorKeyFrame($sIdentifier);
$oResult->setAnimationName(trim($oParserState->consumeUntil('{', false, true)));
CSSList::parseList($oParserState, $oResult);
if ($oParserState->comes('}')) {
$oParserState->consume('}');
}
return $oResult;
} elseif ($sIdentifier === 'namespace') {
$sPrefix = null;
$mUrl = Value::parsePrimitiveValue($oParserState);
if (!$oParserState->comes(';')) {
$sPrefix = $mUrl;
$mUrl = Value::parsePrimitiveValue($oParserState);
}
$oParserState->consumeUntil([';', ParserState::EOF], true, true);
if ($sPrefix !== null && !is_string($sPrefix)) {
throw new UnexpectedTokenException('Wrong namespace prefix', $sPrefix, 'custom', $iIdentifierLineNum);
}
if (!($mUrl instanceof CSSString || $mUrl instanceof URL)) {
throw new UnexpectedTokenException(
'Wrong namespace url of invalid type',
$mUrl,
'custom',
$iIdentifierLineNum
);
}
return new CSSNamespace($mUrl, $sPrefix, $iIdentifierLineNum);
} else {
// Unknown other at rule (font-face or such)
$sArgs = trim($oParserState->consumeUntil('{', false, true));
if (substr_count($sArgs, "(") != substr_count($sArgs, ")")) {
if ($oParserState->getSettings()->bLenientParsing) {
return null;
} else {
throw new SourceException("Unmatched brace count in media query", $oParserState->currentLine());
}
}
$bUseRuleSet = true;
foreach (explode('/', AtRule::BLOCK_RULES) as $sBlockRuleName) {
if (self::identifierIs($sIdentifier, $sBlockRuleName)) {
$bUseRuleSet = false;
break;
}
}
if ($bUseRuleSet) {
$oAtRule = new AtRuleSet($sIdentifier, $sArgs, $iIdentifierLineNum);
RuleSet::parseRuleSet($oParserState, $oAtRule);
} else {
$oAtRule = new AtRuleBlockList($sIdentifier, $sArgs, $iIdentifierLineNum);
CSSList::parseList($oParserState, $oAtRule);
if ($oParserState->comes('}')) {
$oParserState->consume('}');
}
}
return $oAtRule;
}
}
/**
* Tests an identifier for a given value. Since identifiers are all keywords, they can be vendor-prefixed.
* We need to check for these versions too.
*
* @param string $sIdentifier
* @param string $sMatch
*
* @return bool
*/
private static function identifierIs($sIdentifier, $sMatch)
{
return (strcasecmp($sIdentifier, $sMatch) === 0)
?: preg_match("/^(-\\w+-)?$sMatch$/i", $sIdentifier) === 1;
}
/**
* @return int
*/
public function getLineNo()
{
return $this->iLineNo;
}
/**
* Prepends an item to the list of contents.
*
* @param RuleSet|CSSList|Import|Charset $oItem
*
* @return void
*/
public function prepend($oItem)
{
array_unshift($this->aContents, $oItem);
}
/**
* Appends an item to tje list of contents.
*
* @param RuleSet|CSSList|Import|Charset $oItem
*
* @return void
*/
public function append($oItem)
{
$this->aContents[] = $oItem;
}
/**
* Splices the list of contents.
*
* @param int $iOffset
* @param int $iLength
* @param array<int, RuleSet|CSSList|Import|Charset> $mReplacement
*
* @return void
*/
public function splice($iOffset, $iLength = null, $mReplacement = null)
{
array_splice($this->aContents, $iOffset, $iLength, $mReplacement);
}
/**
* Removes an item from the CSS list.
*
* @param RuleSet|Import|Charset|CSSList $oItemToRemove
* May be a RuleSet (most likely a DeclarationBlock), a Import,
* a Charset or another CSSList (most likely a MediaQuery)
*
* @return bool whether the item was removed
*/
public function remove($oItemToRemove)
{
$iKey = array_search($oItemToRemove, $this->aContents, true);
if ($iKey !== false) {
unset($this->aContents[$iKey]);
return true;
}
return false;
}
/**
* Replaces an item from the CSS list.
*
* @param RuleSet|Import|Charset|CSSList $oOldItem
* May be a `RuleSet` (most likely a `DeclarationBlock`), an `Import`, a `Charset`
* or another `CSSList` (most likely a `MediaQuery`)
*
* @return bool
*/
public function replace($oOldItem, $mNewItem)
{
$iKey = array_search($oOldItem, $this->aContents, true);
if ($iKey !== false) {
if (is_array($mNewItem)) {
array_splice($this->aContents, $iKey, 1, $mNewItem);
} else {
array_splice($this->aContents, $iKey, 1, [$mNewItem]);
}
return true;
}
return false;
}
/**
* @param array<int, RuleSet|Import|Charset|CSSList> $aContents
*/
public function setContents(array $aContents)
{
$this->aContents = [];
foreach ($aContents as $content) {
$this->append($content);
}
}
/**
* Removes a declaration block from the CSS list if it matches all given selectors.
*
* @param DeclarationBlock|array<array-key, Selector>|string $mSelector the selectors to match
* @param bool $bRemoveAll whether to stop at the first declaration block found or remove all blocks
*
* @return void
*/
public function removeDeclarationBlockBySelector($mSelector, $bRemoveAll = false)
{
if ($mSelector instanceof DeclarationBlock) {
$mSelector = $mSelector->getSelectors();
}
if (!is_array($mSelector)) {
$mSelector = explode(',', $mSelector);
}
foreach ($mSelector as $iKey => &$mSel) {
if (!($mSel instanceof Selector)) {
if (!Selector::isValid($mSel)) {
throw new UnexpectedTokenException(
"Selector did not match '" . Selector::SELECTOR_VALIDATION_RX . "'.",
$mSel,
"custom"
);
}
$mSel = new Selector($mSel);
}
}
foreach ($this->aContents as $iKey => $mItem) {
if (!($mItem instanceof DeclarationBlock)) {
continue;
}
if ($mItem->getSelectors() == $mSelector) {
unset($this->aContents[$iKey]);
if (!$bRemoveAll) {
return;
}
}
}
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
$sResult = '';
$bIsFirst = true;
$oNextLevel = $oOutputFormat;
if (!$this->isRootList()) {
$oNextLevel = $oOutputFormat->nextLevel();
}
foreach ($this->aContents as $oContent) {
$sRendered = $oOutputFormat->safely(function () use ($oNextLevel, $oContent) {
return $oContent->render($oNextLevel);
});
if ($sRendered === null) {
continue;
}
if ($bIsFirst) {
$bIsFirst = false;
$sResult .= $oNextLevel->spaceBeforeBlocks();
} else {
$sResult .= $oNextLevel->spaceBetweenBlocks();
}
$sResult .= $sRendered;
}
if (!$bIsFirst) {
// Had some output
$sResult .= $oOutputFormat->spaceAfterBlocks();
}
return $sResult;
}
/**
* Return true if the list can not be further outdented. Only important when rendering.
*
* @return bool
*/
abstract public function isRootList();
/**
* @return array<int, RuleSet|Import|Charset|CSSList>
*/
public function getContents()
{
return $this->aContents;
}
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function addComments(array $aComments)
{
$this->aComments = array_merge($this->aComments, $aComments);
}
/**
* @return array<array-key, Comment>
*/
public function getComments()
{
return $this->aComments;
}
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function setComments(array $aComments)
{
$this->aComments = $aComments;
}
}

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<?php
namespace Sabberworm\CSS\CSSList;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\SourceException;
use Sabberworm\CSS\Property\Selector;
use Sabberworm\CSS\RuleSet\DeclarationBlock;
use Sabberworm\CSS\RuleSet\RuleSet;
use Sabberworm\CSS\Value\Value;
/**
* The root `CSSList` of a parsed file. Contains all top-level CSS contents, mostly declaration blocks,
* but also any at-rules encountered.
*/
class Document extends CSSBlockList
{
/**
* @param int $iLineNo
*/
public function __construct($iLineNo = 0)
{
parent::__construct($iLineNo);
}
/**
* @return Document
*
* @throws SourceException
*/
public static function parse(ParserState $oParserState)
{
$oDocument = new Document($oParserState->currentLine());
CSSList::parseList($oParserState, $oDocument);
return $oDocument;
}
/**
* Gets all `DeclarationBlock` objects recursively.
*
* @return array<int, DeclarationBlock>
*/
public function getAllDeclarationBlocks()
{
/** @var array<int, DeclarationBlock> $aResult */
$aResult = [];
$this->allDeclarationBlocks($aResult);
return $aResult;
}
/**
* Gets all `DeclarationBlock` objects recursively.
*
* @return array<int, DeclarationBlock>
*
* @deprecated will be removed in version 9.0; use `getAllDeclarationBlocks()` instead
*/
public function getAllSelectors()
{
return $this->getAllDeclarationBlocks();
}
/**
* Returns all `RuleSet` objects found recursively in the tree.
*
* @return array<int, RuleSet>
*/
public function getAllRuleSets()
{
/** @var array<int, RuleSet> $aResult */
$aResult = [];
$this->allRuleSets($aResult);
return $aResult;
}
/**
* Returns all `Value` objects found recursively in the tree.
*
* @param CSSList|RuleSet|string $mElement
* the `CSSList` or `RuleSet` to start the search from (defaults to the whole document).
* If a string is given, it is used as rule name filter.
* @param bool $bSearchInFunctionArguments whether to also return Value objects used as Function arguments.
*
* @return array<int, Value>
*
* @see RuleSet->getRules()
*/
public function getAllValues($mElement = null, $bSearchInFunctionArguments = false)
{
$sSearchString = null;
if ($mElement === null) {
$mElement = $this;
} elseif (is_string($mElement)) {
$sSearchString = $mElement;
$mElement = $this;
}
/** @var array<int, Value> $aResult */
$aResult = [];
$this->allValues($mElement, $aResult, $sSearchString, $bSearchInFunctionArguments);
return $aResult;
}
/**
* Returns all `Selector` objects found recursively in the tree.
*
* Note that this does not yield the full `DeclarationBlock` that the selector belongs to
* (and, currently, there is no way to get to that).
*
* @param string|null $sSpecificitySearch
* An optional filter by specificity.
* May contain a comparison operator and a number or just a number (defaults to "==").
*
* @return array<int, Selector>
* @example `getSelectorsBySpecificity('>= 100')`
*
*/
public function getSelectorsBySpecificity($sSpecificitySearch = null)
{
/** @var array<int, Selector> $aResult */
$aResult = [];
$this->allSelectors($aResult, $sSpecificitySearch);
return $aResult;
}
/**
* Expands all shorthand properties to their long value.
*
* @return void
*/
public function expandShorthands()
{
foreach ($this->getAllDeclarationBlocks() as $oDeclaration) {
$oDeclaration->expandShorthands();
}
}
/**
* Create shorthands properties whenever possible.
*
* @return void
*/
public function createShorthands()
{
foreach ($this->getAllDeclarationBlocks() as $oDeclaration) {
$oDeclaration->createShorthands();
}
}
/**
* Overrides `render()` to make format argument optional.
*
* @param OutputFormat|null $oOutputFormat
*
* @return string
*/
public function render(OutputFormat $oOutputFormat = null)
{
if ($oOutputFormat === null) {
$oOutputFormat = new OutputFormat();
}
return parent::render($oOutputFormat);
}
/**
* @return bool
*/
public function isRootList()
{
return true;
}
}

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<?php
namespace Sabberworm\CSS\CSSList;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Property\AtRule;
class KeyFrame extends CSSList implements AtRule
{
/**
* @var string|null
*/
private $vendorKeyFrame;
/**
* @var string|null
*/
private $animationName;
/**
* @param int $iLineNo
*/
public function __construct($iLineNo = 0)
{
parent::__construct($iLineNo);
$this->vendorKeyFrame = null;
$this->animationName = null;
}
/**
* @param string $vendorKeyFrame
*/
public function setVendorKeyFrame($vendorKeyFrame)
{
$this->vendorKeyFrame = $vendorKeyFrame;
}
/**
* @return string|null
*/
public function getVendorKeyFrame()
{
return $this->vendorKeyFrame;
}
/**
* @param string $animationName
*/
public function setAnimationName($animationName)
{
$this->animationName = $animationName;
}
/**
* @return string|null
*/
public function getAnimationName()
{
return $this->animationName;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
$sResult = "@{$this->vendorKeyFrame} {$this->animationName}{$oOutputFormat->spaceBeforeOpeningBrace()}{";
$sResult .= parent::render($oOutputFormat);
$sResult .= '}';
return $sResult;
}
/**
* @return bool
*/
public function isRootList()
{
return false;
}
/**
* @return string|null
*/
public function atRuleName()
{
return $this->vendorKeyFrame;
}
/**
* @return string|null
*/
public function atRuleArgs()
{
return $this->animationName;
}
}

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<?php
namespace Sabberworm\CSS\Comment;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Renderable;
class Comment implements Renderable
{
/**
* @var int
*/
protected $iLineNo;
/**
* @var string
*/
protected $sComment;
/**
* @param string $sComment
* @param int $iLineNo
*/
public function __construct($sComment = '', $iLineNo = 0)
{
$this->sComment = $sComment;
$this->iLineNo = $iLineNo;
}
/**
* @return string
*/
public function getComment()
{
return $this->sComment;
}
/**
* @return int
*/
public function getLineNo()
{
return $this->iLineNo;
}
/**
* @param string $sComment
*
* @return void
*/
public function setComment($sComment)
{
$this->sComment = $sComment;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
return '/*' . $this->sComment . '*/';
}
}

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lib/sabberworm/php-css-parser/src/Comment/Commentable.php Normal file
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<?php
namespace Sabberworm\CSS\Comment;
interface Commentable
{
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function addComments(array $aComments);
/**
* @return array<array-key, Comment>
*/
public function getComments();
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function setComments(array $aComments);
}

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<?php
namespace Sabberworm\CSS;
/**
* Class OutputFormat
*
* @method OutputFormat setSemicolonAfterLastRule(bool $bSemicolonAfterLastRule) Set whether semicolons are added after
* last rule.
*/
class OutputFormat
{
/**
* Value format: `"` means double-quote, `'` means single-quote
*
* @var string
*/
public $sStringQuotingType = '"';
/**
* Output RGB colors in hash notation if possible
*
* @var string
*/
public $bRGBHashNotation = true;
/**
* Declaration format
*
* Semicolon after the last rule of a declaration block can be omitted. To do that, set this false.
*
* @var bool
*/
public $bSemicolonAfterLastRule = true;
/**
* Spacing
* Note that these strings are not sanity-checked: the value should only consist of whitespace
* Any newline character will be indented according to the current level.
* The triples (After, Before, Between) can be set using a wildcard (e.g. `$oFormat->set('Space*Rules', "\n");`)
*/
public $sSpaceAfterRuleName = ' ';
/**
* @var string
*/
public $sSpaceBeforeRules = '';
/**
* @var string
*/
public $sSpaceAfterRules = '';
/**
* @var string
*/
public $sSpaceBetweenRules = '';
/**
* @var string
*/
public $sSpaceBeforeBlocks = '';
/**
* @var string
*/
public $sSpaceAfterBlocks = '';
/**
* @var string
*/
public $sSpaceBetweenBlocks = "\n";
/**
* Content injected in and around at-rule blocks.
*
* @var string
*/
public $sBeforeAtRuleBlock = '';
/**
* @var string
*/
public $sAfterAtRuleBlock = '';
/**
* This is what’s printed before and after the comma if a declaration block contains multiple selectors.
*
* @var string
*/
public $sSpaceBeforeSelectorSeparator = '';
/**
* @var string
*/
public $sSpaceAfterSelectorSeparator = ' ';
/**
* This is what’s printed after the comma of value lists
*
* @var string
*/
public $sSpaceBeforeListArgumentSeparator = '';
/**
* @var string
*/
public $sSpaceAfterListArgumentSeparator = '';
/**
* @var string
*/
public $sSpaceBeforeOpeningBrace = ' ';
/**
* Content injected in and around declaration blocks.
*
* @var string
*/
public $sBeforeDeclarationBlock = '';
/**
* @var string
*/
public $sAfterDeclarationBlockSelectors = '';
/**
* @var string
*/
public $sAfterDeclarationBlock = '';
/**
* Indentation character(s) per level. Only applicable if newlines are used in any of the spacing settings.
*
* @var string
*/
public $sIndentation = "\t";
/**
* Output exceptions.
*
* @var bool
*/
public $bIgnoreExceptions = false;
/**
* @var OutputFormatter|null
*/
private $oFormatter = null;
/**
* @var OutputFormat|null
*/
private $oNextLevelFormat = null;
/**
* @var int
*/
private $iIndentationLevel = 0;
public function __construct()
{
}
/**
* @param string $sName
*
* @return string|null
*/
public function get($sName)
{
$aVarPrefixes = ['a', 's', 'm', 'b', 'f', 'o', 'c', 'i'];
foreach ($aVarPrefixes as $sPrefix) {
$sFieldName = $sPrefix . ucfirst($sName);
if (isset($this->$sFieldName)) {
return $this->$sFieldName;
}
}
return null;
}
/**
* @param array<array-key, string>|string $aNames
* @param mixed $mValue
*
* @return self|false
*/
public function set($aNames, $mValue)
{
$aVarPrefixes = ['a', 's', 'm', 'b', 'f', 'o', 'c', 'i'];
if (is_string($aNames) && strpos($aNames, '*') !== false) {
$aNames =
[
str_replace('*', 'Before', $aNames),
str_replace('*', 'Between', $aNames),
str_replace('*', 'After', $aNames),
];
} elseif (!is_array($aNames)) {
$aNames = [$aNames];
}
foreach ($aVarPrefixes as $sPrefix) {
$bDidReplace = false;
foreach ($aNames as $sName) {
$sFieldName = $sPrefix . ucfirst($sName);
if (isset($this->$sFieldName)) {
$this->$sFieldName = $mValue;
$bDidReplace = true;
}
}
if ($bDidReplace) {
return $this;
}
}
// Break the chain so the user knows this option is invalid
return false;
}
/**
* @param string $sMethodName
* @param array<array-key, mixed> $aArguments
*
* @return mixed
*
* @throws \Exception
*/
public function __call($sMethodName, array $aArguments)
{
if (strpos($sMethodName, 'set') === 0) {
return $this->set(substr($sMethodName, 3), $aArguments[0]);
} elseif (strpos($sMethodName, 'get') === 0) {
return $this->get(substr($sMethodName, 3));
} elseif (method_exists(OutputFormatter::class, $sMethodName)) {
return call_user_func_array([$this->getFormatter(), $sMethodName], $aArguments);
} else {
throw new \Exception('Unknown OutputFormat method called: ' . $sMethodName);
}
}
/**
* @param int $iNumber
*
* @return self
*/
public function indentWithTabs($iNumber = 1)
{
return $this->setIndentation(str_repeat("\t", $iNumber));
}
/**
* @param int $iNumber
*
* @return self
*/
public function indentWithSpaces($iNumber = 2)
{
return $this->setIndentation(str_repeat(" ", $iNumber));
}
/**
* @return OutputFormat
*/
public function nextLevel()
{
if ($this->oNextLevelFormat === null) {
$this->oNextLevelFormat = clone $this;
$this->oNextLevelFormat->iIndentationLevel++;
$this->oNextLevelFormat->oFormatter = null;
}
return $this->oNextLevelFormat;
}
/**
* @return void
*/
public function beLenient()
{
$this->bIgnoreExceptions = true;
}
/**
* @return OutputFormatter
*/
public function getFormatter()
{
if ($this->oFormatter === null) {
$this->oFormatter = new OutputFormatter($this);
}
return $this->oFormatter;
}
/**
* @return int
*/
public function level()
{
return $this->iIndentationLevel;
}
/**
* Creates an instance of this class without any particular formatting settings.
*
* @return self
*/
public static function create()
{
return new OutputFormat();
}
/**
* Creates an instance of this class with a preset for compact formatting.
*
* @return self
*/
public static function createCompact()
{
$format = self::create();
$format->set('Space*Rules', "")->set('Space*Blocks', "")->setSpaceAfterRuleName('')
->setSpaceBeforeOpeningBrace('')->setSpaceAfterSelectorSeparator('');
return $format;
}
/**
* Creates an instance of this class with a preset for pretty formatting.
*
* @return self
*/
public static function createPretty()
{
$format = self::create();
$format->set('Space*Rules', "\n")->set('Space*Blocks', "\n")
->setSpaceBetweenBlocks("\n\n")->set('SpaceAfterListArgumentSeparator', ['default' => '', ',' => ' ']);
return $format;
}
}

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<?php
namespace Sabberworm\CSS;
use Sabberworm\CSS\Parsing\OutputException;
class OutputFormatter
{
/**
* @var OutputFormat
*/
private $oFormat;
public function __construct(OutputFormat $oFormat)
{
$this->oFormat = $oFormat;
}
/**
* @param string $sName
* @param string|null $sType
*
* @return string
*/
public function space($sName, $sType = null)
{
$sSpaceString = $this->oFormat->get("Space$sName");
// If $sSpaceString is an array, we have multiple values configured
// depending on the type of object the space applies to
if (is_array($sSpaceString)) {
if ($sType !== null && isset($sSpaceString[$sType])) {
$sSpaceString = $sSpaceString[$sType];
} else {
$sSpaceString = reset($sSpaceString);
}
}
return $this->prepareSpace($sSpaceString);
}
/**
* @return string
*/
public function spaceAfterRuleName()
{
return $this->space('AfterRuleName');
}
/**
* @return string
*/
public function spaceBeforeRules()
{
return $this->space('BeforeRules');
}
/**
* @return string
*/
public function spaceAfterRules()
{
return $this->space('AfterRules');
}
/**
* @return string
*/
public function spaceBetweenRules()
{
return $this->space('BetweenRules');
}
/**
* @return string
*/
public function spaceBeforeBlocks()
{
return $this->space('BeforeBlocks');
}
/**
* @return string
*/
public function spaceAfterBlocks()
{
return $this->space('AfterBlocks');
}
/**
* @return string
*/
public function spaceBetweenBlocks()
{
return $this->space('BetweenBlocks');
}
/**
* @return string
*/
public function spaceBeforeSelectorSeparator()
{
return $this->space('BeforeSelectorSeparator');
}
/**
* @return string
*/
public function spaceAfterSelectorSeparator()
{
return $this->space('AfterSelectorSeparator');
}
/**
* @param string $sSeparator
*
* @return string
*/
public function spaceBeforeListArgumentSeparator($sSeparator)
{
return $this->space('BeforeListArgumentSeparator', $sSeparator);
}
/**
* @param string $sSeparator
*
* @return string
*/
public function spaceAfterListArgumentSeparator($sSeparator)
{
return $this->space('AfterListArgumentSeparator', $sSeparator);
}
/**
* @return string
*/
public function spaceBeforeOpeningBrace()
{
return $this->space('BeforeOpeningBrace');
}
/**
* Runs the given code, either swallowing or passing exceptions, depending on the `bIgnoreExceptions` setting.
*
* @param string $cCode the name of the function to call
*
* @return string|null
*/
public function safely($cCode)
{
if ($this->oFormat->get('IgnoreExceptions')) {
// If output exceptions are ignored, run the code with exception guards
try {
return $cCode();
} catch (OutputException $e) {
return null;
} // Do nothing
} else {
// Run the code as-is
return $cCode();
}
}
/**
* Clone of the `implode` function, but calls `render` with the current output format instead of `__toString()`.
*
* @param string $sSeparator
* @param array<array-key, Renderable|string> $aValues
* @param bool $bIncreaseLevel
*
* @return string
*/
public function implode($sSeparator, array $aValues, $bIncreaseLevel = false)
{
$sResult = '';
$oFormat = $this->oFormat;
if ($bIncreaseLevel) {
$oFormat = $oFormat->nextLevel();
}
$bIsFirst = true;
foreach ($aValues as $mValue) {
if ($bIsFirst) {
$bIsFirst = false;
} else {
$sResult .= $sSeparator;
}
if ($mValue instanceof Renderable) {
$sResult .= $mValue->render($oFormat);
} else {
$sResult .= $mValue;
}
}
return $sResult;
}
/**
* @param string $sString
*
* @return string
*/
public function removeLastSemicolon($sString)
{
if ($this->oFormat->get('SemicolonAfterLastRule')) {
return $sString;
}
$sString = explode(';', $sString);
if (count($sString) < 2) {
return $sString[0];
}
$sLast = array_pop($sString);
$sNextToLast = array_pop($sString);
array_push($sString, $sNextToLast . $sLast);
return implode(';', $sString);
}
/**
* @param string $sSpaceString
*
* @return string
*/
private function prepareSpace($sSpaceString)
{
return str_replace("\n", "\n" . $this->indent(), $sSpaceString);
}
/**
* @return string
*/
private function indent()
{
return str_repeat($this->oFormat->sIndentation, $this->oFormat->level());
}
}

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<?php
namespace Sabberworm\CSS;
use Sabberworm\CSS\CSSList\Document;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\SourceException;
/**
* This class parses CSS from text into a data structure.
*/
class Parser
{
/**
* @var ParserState
*/
private $oParserState;
/**
* @param string $sText
* @param Settings|null $oParserSettings
* @param int $iLineNo the line number (starting from 1, not from 0)
*/
public function __construct($sText, Settings $oParserSettings = null, $iLineNo = 1)
{
if ($oParserSettings === null) {
$oParserSettings = Settings::create();
}
$this->oParserState = new ParserState($sText, $oParserSettings, $iLineNo);
}
/**
* @param string $sCharset
*
* @return void
*/
public function setCharset($sCharset)
{
$this->oParserState->setCharset($sCharset);
}
/**
* @return void
*/
public function getCharset()
{
// Note: The `return` statement is missing here. This is a bug that needs to be fixed.
$this->oParserState->getCharset();
}
/**
* @return Document
*
* @throws SourceException
*/
public function parse()
{
return Document::parse($this->oParserState);
}
}

18
lib/sabberworm/php-css-parser/src/Parsing/OutputException.php Normal file
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<?php
namespace Sabberworm\CSS\Parsing;
/**
* Thrown if the CSS parser attempts to print something invalid.
*/
class OutputException extends SourceException
{
/**
* @param string $sMessage
* @param int $iLineNo
*/
public function __construct($sMessage, $iLineNo = 0)
{
parent::__construct($sMessage, $iLineNo);
}
}

516
lib/sabberworm/php-css-parser/src/Parsing/ParserState.php Normal file
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<?php
namespace Sabberworm\CSS\Parsing;
use Sabberworm\CSS\Comment\Comment;
use Sabberworm\CSS\Settings;
class ParserState
{
/**
* @var null
*/
const EOF = null;
/**
* @var Settings
*/
private $oParserSettings;
/**
* @var string
*/
private $sText;
/**
* @var array<int, string>
*/
private $aText;
/**
* @var int
*/
private $iCurrentPosition;
/**
* @var string
*/
private $sCharset;
/**
* @var int
*/
private $iLength;
/**
* @var int
*/
private $iLineNo;
/**
* @param string $sText
* @param int $iLineNo
*/
public function __construct($sText, Settings $oParserSettings, $iLineNo = 1)
{
$this->oParserSettings = $oParserSettings;
$this->sText = $sText;
$this->iCurrentPosition = 0;
$this->iLineNo = $iLineNo;
$this->setCharset($this->oParserSettings->sDefaultCharset);
}
/**
* @param string $sCharset
*
* @return void
*/
public function setCharset($sCharset)
{
$this->sCharset = $sCharset;
$this->aText = $this->strsplit($this->sText);
if (is_array($this->aText)) {
$this->iLength = count($this->aText);
}
}
/**
* @return string
*/
public function getCharset()
{
return $this->sCharset;
}
/**
* @return int
*/
public function currentLine()
{
return $this->iLineNo;
}
/**
* @return int
*/
public function currentColumn()
{
return $this->iCurrentPosition;
}
/**
* @return Settings
*/
public function getSettings()
{
return $this->oParserSettings;
}
/**
* @param bool $bIgnoreCase
*
* @return string
*
* @throws UnexpectedTokenException
*/
public function parseIdentifier($bIgnoreCase = true)
{
$sResult = $this->parseCharacter(true);
if ($sResult === null) {
throw new UnexpectedTokenException($sResult, $this->peek(5), 'identifier', $this->iLineNo);
}
$sCharacter = null;
while (($sCharacter = $this->parseCharacter(true)) !== null) {
if (preg_match('/[a-zA-Z0-9\x{00A0}-\x{FFFF}_-]/Sux', $sCharacter)) {
$sResult .= $sCharacter;
} else {
$sResult .= '\\' . $sCharacter;
}
}
if ($bIgnoreCase) {
$sResult = $this->strtolower($sResult);
}
return $sResult;
}
/**
* @param bool $bIsForIdentifier
*
* @return string|null
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
public function parseCharacter($bIsForIdentifier)
{
if ($this->peek() === '\\') {
if (
$bIsForIdentifier && $this->oParserSettings->bLenientParsing
&& ($this->comes('\0') || $this->comes('\9'))
) {
// Non-strings can contain \0 or \9 which is an IE hack supported in lenient parsing.
return null;
}
$this->consume('\\');
if ($this->comes('\n') || $this->comes('\r')) {
return '';
}
if (preg_match('/[0-9a-fA-F]/Su', $this->peek()) === 0) {
return $this->consume(1);
}
$sUnicode = $this->consumeExpression('/^[0-9a-fA-F]{1,6}/u', 6);
if ($this->strlen($sUnicode) < 6) {
// Consume whitespace after incomplete unicode escape
if (preg_match('/\\s/isSu', $this->peek())) {
if ($this->comes('\r\n')) {
$this->consume(2);
} else {
$this->consume(1);
}
}
}
$iUnicode = intval($sUnicode, 16);
$sUtf32 = "";
for ($i = 0; $i < 4; ++$i) {
$sUtf32 .= chr($iUnicode & 0xff);
$iUnicode = $iUnicode >> 8;
}
return iconv('utf-32le', $this->sCharset, $sUtf32);
}
if ($bIsForIdentifier) {
$peek = ord($this->peek());
// Ranges: a-z A-Z 0-9 - _
if (
($peek >= 97 && $peek <= 122)
|| ($peek >= 65 && $peek <= 90)
|| ($peek >= 48 && $peek <= 57)
|| ($peek === 45)
|| ($peek === 95)
|| ($peek > 0xa1)
) {
return $this->consume(1);
}
} else {
return $this->consume(1);
}
return null;
}
/**
* @return array<int, Comment>|void
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
public function consumeWhiteSpace()
{
$comments = [];
do {
while (preg_match('/\\s/isSu', $this->peek()) === 1) {
$this->consume(1);
}
if ($this->oParserSettings->bLenientParsing) {
try {
$oComment = $this->consumeComment();
} catch (UnexpectedEOFException $e) {
$this->iCurrentPosition = $this->iLength;
return;
}
} else {
$oComment = $this->consumeComment();
}
if ($oComment !== false) {
$comments[] = $oComment;
}
} while ($oComment !== false);
return $comments;
}
/**
* @param string $sString
* @param bool $bCaseInsensitive
*
* @return bool
*/
public function comes($sString, $bCaseInsensitive = false)
{
$sPeek = $this->peek(strlen($sString));
return ($sPeek == '')
? false
: $this->streql($sPeek, $sString, $bCaseInsensitive);
}
/**
* @param int $iLength
* @param int $iOffset
*
* @return string
*/
public function peek($iLength = 1, $iOffset = 0)
{
$iOffset += $this->iCurrentPosition;
if ($iOffset >= $this->iLength) {
return '';
}
return $this->substr($iOffset, $iLength);
}
/**
* @param int $mValue
*
* @return string
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
public function consume($mValue = 1)
{
if (is_string($mValue)) {
$iLineCount = substr_count($mValue, "\n");
$iLength = $this->strlen($mValue);
if (!$this->streql($this->substr($this->iCurrentPosition, $iLength), $mValue)) {
throw new UnexpectedTokenException($mValue, $this->peek(max($iLength, 5)), $this->iLineNo);
}
$this->iLineNo += $iLineCount;
$this->iCurrentPosition += $this->strlen($mValue);
return $mValue;
} else {
if ($this->iCurrentPosition + $mValue > $this->iLength) {
throw new UnexpectedEOFException($mValue, $this->peek(5), 'count', $this->iLineNo);
}
$sResult = $this->substr($this->iCurrentPosition, $mValue);
$iLineCount = substr_count($sResult, "\n");
$this->iLineNo += $iLineCount;
$this->iCurrentPosition += $mValue;
return $sResult;
}
}
/**
* @param string $mExpression
* @param int|null $iMaxLength
*
* @return string
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
public function consumeExpression($mExpression, $iMaxLength = null)
{
$aMatches = null;
$sInput = $iMaxLength !== null ? $this->peek($iMaxLength) : $this->inputLeft();
if (preg_match($mExpression, $sInput, $aMatches, PREG_OFFSET_CAPTURE) === 1) {
return $this->consume($aMatches[0][0]);
}
throw new UnexpectedTokenException($mExpression, $this->peek(5), 'expression', $this->iLineNo);
}
/**
* @return Comment|false
*/
public function consumeComment()
{
$mComment = false;
if ($this->comes('/*')) {
$iLineNo = $this->iLineNo;
$this->consume(1);
$mComment = '';
while (($char = $this->consume(1)) !== '') {
$mComment .= $char;
if ($this->comes('*/')) {
$this->consume(2);
break;
}
}
}
if ($mComment !== false) {
// We skip the * which was included in the comment.
return new Comment(substr($mComment, 1), $iLineNo);
}
return $mComment;
}
/**
* @return bool
*/
public function isEnd()
{
return $this->iCurrentPosition >= $this->iLength;
}
/**
* @param array<array-key, string>|string $aEnd
* @param string $bIncludeEnd
* @param string $consumeEnd
* @param array<int, Comment> $comments
*
* @return string
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
public function consumeUntil($aEnd, $bIncludeEnd = false, $consumeEnd = false, array &$comments = [])
{
$aEnd = is_array($aEnd) ? $aEnd : [$aEnd];
$out = '';
$start = $this->iCurrentPosition;
while (!$this->isEnd()) {
$char = $this->consume(1);
if (in_array($char, $aEnd)) {
if ($bIncludeEnd) {
$out .= $char;
} elseif (!$consumeEnd) {
$this->iCurrentPosition -= $this->strlen($char);
}
return $out;
}
$out .= $char;
if ($comment = $this->consumeComment()) {
$comments[] = $comment;
}
}
if (in_array(self::EOF, $aEnd)) {
return $out;
}
$this->iCurrentPosition = $start;
throw new UnexpectedEOFException(
'One of ("' . implode('","', $aEnd) . '")',
$this->peek(5),
'search',
$this->iLineNo
);
}
/**
* @return string
*/
private function inputLeft()
{
return $this->substr($this->iCurrentPosition, -1);
}
/**
* @param string $sString1
* @param string $sString2
* @param bool $bCaseInsensitive
*
* @return bool
*/
public function streql($sString1, $sString2, $bCaseInsensitive = true)
{
if ($bCaseInsensitive) {
return $this->strtolower($sString1) === $this->strtolower($sString2);
} else {
return $sString1 === $sString2;
}
}
/**
* @param int $iAmount
*
* @return void
*/
public function backtrack($iAmount)
{
$this->iCurrentPosition -= $iAmount;
}
/**
* @param string $sString
*
* @return int
*/
public function strlen($sString)
{
if ($this->oParserSettings->bMultibyteSupport) {
return mb_strlen($sString, $this->sCharset);
} else {
return strlen($sString);
}
}
/**
* @param int $iStart
* @param int $iLength
*
* @return string
*/
private function substr($iStart, $iLength)
{
if ($iLength < 0) {
$iLength = $this->iLength - $iStart + $iLength;
}
if ($iStart + $iLength > $this->iLength) {
$iLength = $this->iLength - $iStart;
}
$sResult = '';
while ($iLength > 0) {
$sResult .= $this->aText[$iStart];
$iStart++;
$iLength--;
}
return $sResult;
}
/**
* @param string $sString
*
* @return string
*/
private function strtolower($sString)
{
if ($this->oParserSettings->bMultibyteSupport) {
return mb_strtolower($sString, $this->sCharset);
} else {
return strtolower($sString);
}
}
/**
* @param string $sString
*
* @return array<int, string>
*/
private function strsplit($sString)
{
if ($this->oParserSettings->bMultibyteSupport) {
if ($this->streql($this->sCharset, 'utf-8')) {
return preg_split('//u', $sString, -1, PREG_SPLIT_NO_EMPTY);
} else {
$iLength = mb_strlen($sString, $this->sCharset);
$aResult = [];
for ($i = 0; $i < $iLength; ++$i) {
$aResult[] = mb_substr($sString, $i, 1, $this->sCharset);
}
return $aResult;
}
} else {
if ($sString === '') {
return [];
} else {
return str_split($sString);
}
}
}
/**
* @param string $sString
* @param string $sNeedle
* @param int $iOffset
*
* @return int|false
*/
private function strpos($sString, $sNeedle, $iOffset)
{
if ($this->oParserSettings->bMultibyteSupport) {
return mb_strpos($sString, $sNeedle, $iOffset, $this->sCharset);
} else {
return strpos($sString, $sNeedle, $iOffset);
}
}
}

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<?php
namespace Sabberworm\CSS\Parsing;
class SourceException extends \Exception
{
/**
* @var int
*/
private $iLineNo;
/**
* @param string $sMessage
* @param int $iLineNo
*/
public function __construct($sMessage, $iLineNo = 0)
{
$this->iLineNo = $iLineNo;
if (!empty($iLineNo)) {
$sMessage .= " [line no: $iLineNo]";
}
parent::__construct($sMessage);
}
/**
* @return int
*/
public function getLineNo()
{
return $this->iLineNo;
}
}

12
lib/sabberworm/php-css-parser/src/Parsing/UnexpectedEOFException.php Normal file
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<?php
namespace Sabberworm\CSS\Parsing;
/**
* Thrown if the CSS parser encounters end of file it did not expect.
*
* Extends `UnexpectedTokenException` in order to preserve backwards compatibility.
*/
class UnexpectedEOFException extends UnexpectedTokenException
{
}

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lib/sabberworm/php-css-parser/src/Parsing/UnexpectedTokenException.php Normal file
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<?php
namespace Sabberworm\CSS\Parsing;
/**
* Thrown if the CSS parser encounters a token it did not expect.
*/
class UnexpectedTokenException extends SourceException
{
/**
* @var string
*/
private $sExpected;
/**
* @var string
*/
private $sFound;
/**
* Possible values: literal, identifier, count, expression, search
*
* @var string
*/
private $sMatchType;
/**
* @param string $sExpected
* @param string $sFound
* @param string $sMatchType
* @param int $iLineNo
*/
public function __construct($sExpected, $sFound, $sMatchType = 'literal', $iLineNo = 0)
{
$this->sExpected = $sExpected;
$this->sFound = $sFound;
$this->sMatchType = $sMatchType;
$sMessage = "Token “{$sExpected}” ({$sMatchType}) not found. Got “{$sFound}”.";
if ($this->sMatchType === 'search') {
$sMessage = "Search for “{$sExpected}” returned no results. Context: “{$sFound}”.";
} elseif ($this->sMatchType === 'count') {
$sMessage = "Next token was expected to have {$sExpected} chars. Context: “{$sFound}”.";
} elseif ($this->sMatchType === 'identifier') {
$sMessage = "Identifier expected. Got “{$sFound}”";
} elseif ($this->sMatchType === 'custom') {
$sMessage = trim("$sExpected $sFound");
}
parent::__construct($sMessage, $iLineNo);
}
}

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<?php
namespace Sabberworm\CSS\Property;
use Sabberworm\CSS\Comment\Commentable;
use Sabberworm\CSS\Renderable;
interface AtRule extends Renderable, Commentable
{
/**
* Since there are more set rules than block rules,
* we’re whitelisting the block rules and have anything else be treated as a set rule.
*
* @var string
*/
const BLOCK_RULES = 'media/document/supports/region-style/font-feature-values';
/**
* … and more font-specific ones (to be used inside font-feature-values)
*
* @var string
*/
const SET_RULES = 'font-face/counter-style/page/swash/styleset/annotation';
/**
* @return string|null
*/
public function atRuleName();
/**
* @return string|null
*/
public function atRuleArgs();
}

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<?php
namespace Sabberworm\CSS\Property;
use Sabberworm\CSS\Comment\Comment;
use Sabberworm\CSS\OutputFormat;
/**
* `CSSNamespace` represents an `@namespace` rule.
*/
class CSSNamespace implements AtRule
{
/**
* @var string
*/
private $mUrl;
/**
* @var string
*/
private $sPrefix;
/**
* @var int
*/
private $iLineNo;
/**
* @var array<array-key, Comment>
*/
protected $aComments;
/**
* @param string $mUrl
* @param string|null $sPrefix
* @param int $iLineNo
*/
public function __construct($mUrl, $sPrefix = null, $iLineNo = 0)
{
$this->mUrl = $mUrl;
$this->sPrefix = $sPrefix;
$this->iLineNo = $iLineNo;
$this->aComments = [];
}
/**
* @return int
*/
public function getLineNo()
{
return $this->iLineNo;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
return '@namespace ' . ($this->sPrefix === null ? '' : $this->sPrefix . ' ')
. $this->mUrl->render($oOutputFormat) . ';';
}
/**
* @return string
*/
public function getUrl()
{
return $this->mUrl;
}
/**
* @return string|null
*/
public function getPrefix()
{
return $this->sPrefix;
}
/**
* @param string $mUrl
*
* @return void
*/
public function setUrl($mUrl)
{
$this->mUrl = $mUrl;
}
/**
* @param string $sPrefix
*
* @return void
*/
public function setPrefix($sPrefix)
{
$this->sPrefix = $sPrefix;
}
/**
* @return string
*/
public function atRuleName()
{
return 'namespace';
}
/**
* @return array<int, string>
*/
public function atRuleArgs()
{
$aResult = [$this->mUrl];
if ($this->sPrefix) {
array_unshift($aResult, $this->sPrefix);
}
return $aResult;
}
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function addComments(array $aComments)
{
$this->aComments = array_merge($this->aComments, $aComments);
}
/**
* @return array<array-key, Comment>
*/
public function getComments()
{
return $this->aComments;
}
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function setComments(array $aComments)
{
$this->aComments = $aComments;
}
}

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lib/sabberworm/php-css-parser/src/Property/Charset.php Normal file
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<?php
namespace Sabberworm\CSS\Property;
use Sabberworm\CSS\Comment\Comment;
use Sabberworm\CSS\OutputFormat;
/**
* Class representing an `@charset` rule.
*
* The following restrictions apply:
* - May not be found in any CSSList other than the Document.
* - May only appear at the very top of a Document’s contents.
* - Must not appear more than once.
*/
class Charset implements AtRule
{
/**
* @var string
*/
private $sCharset;
/**
* @var int
*/
protected $iLineNo;
/**
* @var array<array-key, Comment>
*/
protected $aComments;
/**
* @param string $sCharset
* @param int $iLineNo
*/
public function __construct($sCharset, $iLineNo = 0)
{
$this->sCharset = $sCharset;
$this->iLineNo = $iLineNo;
$this->aComments = [];
}
/**
* @return int
*/
public function getLineNo()
{
return $this->iLineNo;
}
/**
* @param string $sCharset
*
* @return void
*/
public function setCharset($sCharset)
{
$this->sCharset = $sCharset;
}
/**
* @return string
*/
public function getCharset()
{
return $this->sCharset;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
return "@charset {$this->sCharset->render($oOutputFormat)};";
}
/**
* @return string
*/
public function atRuleName()
{
return 'charset';
}
/**
* @return string
*/
public function atRuleArgs()
{
return $this->sCharset;
}
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function addComments(array $aComments)
{
$this->aComments = array_merge($this->aComments, $aComments);
}
/**
* @return array<array-key, Comment>
*/
public function getComments()
{
return $this->aComments;
}
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function setComments(array $aComments)
{
$this->aComments = $aComments;
}
}

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<?php
namespace Sabberworm\CSS\Property;
use Sabberworm\CSS\Comment\Comment;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Value\URL;
/**
* Class representing an `@import` rule.
*/
class Import implements AtRule
{
/**
* @var URL
*/
private $oLocation;
/**
* @var string
*/
private $sMediaQuery;
/**
* @var int
*/
protected $iLineNo;
/**
* @var array<array-key, Comment>
*/
protected $aComments;
/**
* @param URL $oLocation
* @param string $sMediaQuery
* @param int $iLineNo
*/
public function __construct(URL $oLocation, $sMediaQuery, $iLineNo = 0)
{
$this->oLocation = $oLocation;
$this->sMediaQuery = $sMediaQuery;
$this->iLineNo = $iLineNo;
$this->aComments = [];
}
/**
* @return int
*/
public function getLineNo()
{
return $this->iLineNo;
}
/**
* @param URL $oLocation
*
* @return void
*/
public function setLocation($oLocation)
{
$this->oLocation = $oLocation;
}
/**
* @return URL
*/
public function getLocation()
{
return $this->oLocation;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
return "@import " . $this->oLocation->render($oOutputFormat)
. ($this->sMediaQuery === null ? '' : ' ' . $this->sMediaQuery) . ';';
}
/**
* @return string
*/
public function atRuleName()
{
return 'import';
}
/**
* @return array<int, URL|string>
*/
public function atRuleArgs()
{
$aResult = [$this->oLocation];
if ($this->sMediaQuery) {
array_push($aResult, $this->sMediaQuery);
}
return $aResult;
}
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function addComments(array $aComments)
{
$this->aComments = array_merge($this->aComments, $aComments);
}
/**
* @return array<array-key, Comment>
*/
public function getComments()
{
return $this->aComments;
}
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function setComments(array $aComments)
{
$this->aComments = $aComments;
}
}

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lib/sabberworm/php-css-parser/src/Property/KeyframeSelector.php Normal file
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<?php
namespace Sabberworm\CSS\Property;
class KeyframeSelector extends Selector
{
/**
* regexp for specificity calculations
*
* @var string
*/
const SELECTOR_VALIDATION_RX = '/
^(
(?:
[a-zA-Z0-9\x{00A0}-\x{FFFF}_^$|*="\'~\[\]()\-\s\.:#+>]* # any sequence of valid unescaped characters
(?:\\\\.)? # a single escaped character
(?:([\'"]).*?(?<!\\\\)\2)? # a quoted text like [id="example"]
)*
)|
(\d+%) # keyframe animation progress percentage (e.g. 50%)
$
/ux';
}

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lib/sabberworm/php-css-parser/src/Property/Selector.php Normal file
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<?php
namespace Sabberworm\CSS\Property;
/**
* Class representing a single CSS selector. Selectors have to be split by the comma prior to being passed into this
* class.
*/
class Selector
{
/**
* regexp for specificity calculations
*
* @var string
*/
const NON_ID_ATTRIBUTES_AND_PSEUDO_CLASSES_RX = '/
(\.[\w]+) # classes
|
\[(\w+) # attributes
|
(\:( # pseudo classes
link|visited|active
|hover|focus
|lang
|target
|enabled|disabled|checked|indeterminate
|root
|nth-child|nth-last-child|nth-of-type|nth-last-of-type
|first-child|last-child|first-of-type|last-of-type
|only-child|only-of-type
|empty|contains
))
/ix';
/**
* regexp for specificity calculations
*
* @var string
*/
const ELEMENTS_AND_PSEUDO_ELEMENTS_RX = '/
((^|[\s\+\>\~]+)[\w]+ # elements
|
\:{1,2}( # pseudo-elements
after|before|first-letter|first-line|selection
))
/ix';
/**
* regexp for specificity calculations
*
* @var string
*/
const SELECTOR_VALIDATION_RX = '/
^(
(?:
[a-zA-Z0-9\x{00A0}-\x{FFFF}_^$|*="\'~\[\]()\-\s\.:#+>]* # any sequence of valid unescaped characters
(?:\\\\.)? # a single escaped character
(?:([\'"]).*?(?<!\\\\)\2)? # a quoted text like [id="example"]
)*
)$
/ux';
/**
* @var string
*/
private $sSelector;
/**
* @var int|null
*/
private $iSpecificity;
/**
* @param string $sSelector
*
* @return bool
*/
public static function isValid($sSelector)
{
return preg_match(static::SELECTOR_VALIDATION_RX, $sSelector);
}
/**
* @param string $sSelector
* @param bool $bCalculateSpecificity
*/
public function __construct($sSelector, $bCalculateSpecificity = false)
{
$this->setSelector($sSelector);
if ($bCalculateSpecificity) {
$this->getSpecificity();
}
}
/**
* @return string
*/
public function getSelector()
{
return $this->sSelector;
}
/**
* @param string $sSelector
*
* @return void
*/
public function setSelector($sSelector)
{
$this->sSelector = trim($sSelector);
$this->iSpecificity = null;
}
/**
* @return string
*/
public function __toString()
{
return $this->getSelector();
}
/**
* @return int
*/
public function getSpecificity()
{
if ($this->iSpecificity === null) {
$a = 0;
/// @todo should exclude \# as well as "#"
$aMatches = null;
$b = substr_count($this->sSelector, '#');
$c = preg_match_all(self::NON_ID_ATTRIBUTES_AND_PSEUDO_CLASSES_RX, $this->sSelector, $aMatches);
$d = preg_match_all(self::ELEMENTS_AND_PSEUDO_ELEMENTS_RX, $this->sSelector, $aMatches);
$this->iSpecificity = ($a * 1000) + ($b * 100) + ($c * 10) + $d;
}
return $this->iSpecificity;
}
}

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lib/sabberworm/php-css-parser/src/Renderable.php Normal file
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<?php
namespace Sabberworm\CSS;
interface Renderable
{
/**
* @return string
*/
public function __toString();
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat);
/**
* @return int
*/
public function getLineNo();
}

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lib/sabberworm/php-css-parser/src/Rule/Rule.php Normal file
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<?php
namespace Sabberworm\CSS\Rule;
use Sabberworm\CSS\Comment\Comment;
use Sabberworm\CSS\Comment\Commentable;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
use Sabberworm\CSS\Renderable;
use Sabberworm\CSS\Value\RuleValueList;
use Sabberworm\CSS\Value\Value;
/**
* RuleSets contains Rule objects which always have a key and a value.
* In CSS, Rules are expressed as follows: “key: value[0][0] value[0][1], value[1][0] value[1][1];”
*/
class Rule implements Renderable, Commentable
{
/**
* @var string
*/
private $sRule;
/**
* @var RuleValueList|null
*/
private $mValue;
/**
* @var bool
*/
private $bIsImportant;
/**
* @var array<int, int>
*/
private $aIeHack;
/**
* @var int
*/
protected $iLineNo;
/**
* @var int
*/
protected $iColNo;
/**
* @var array<array-key, Comment>
*/
protected $aComments;
/**
* @param string $sRule
* @param int $iLineNo
* @param int $iColNo
*/
public function __construct($sRule, $iLineNo = 0, $iColNo = 0)
{
$this->sRule = $sRule;
$this->mValue = null;
$this->bIsImportant = false;
$this->aIeHack = [];
$this->iLineNo = $iLineNo;
$this->iColNo = $iColNo;
$this->aComments = [];
}
/**
* @return Rule
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
public static function parse(ParserState $oParserState)
{
$aComments = $oParserState->consumeWhiteSpace();
$oRule = new Rule(
$oParserState->parseIdentifier(!$oParserState->comes("--")),
$oParserState->currentLine(),
$oParserState->currentColumn()
);
$oRule->setComments($aComments);
$oRule->addComments($oParserState->consumeWhiteSpace());
$oParserState->consume(':');
$oValue = Value::parseValue($oParserState, self::listDelimiterForRule($oRule->getRule()));
$oRule->setValue($oValue);
if ($oParserState->getSettings()->bLenientParsing) {
while ($oParserState->comes('\\')) {
$oParserState->consume('\\');
$oRule->addIeHack($oParserState->consume());
$oParserState->consumeWhiteSpace();
}
}
$oParserState->consumeWhiteSpace();
if ($oParserState->comes('!')) {
$oParserState->consume('!');
$oParserState->consumeWhiteSpace();
$oParserState->consume('important');
$oRule->setIsImportant(true);
}
$oParserState->consumeWhiteSpace();
while ($oParserState->comes(';')) {
$oParserState->consume(';');
}
$oParserState->consumeWhiteSpace();
return $oRule;
}
/**
* @param string $sRule
*
* @return array<int, string>
*/
private static function listDelimiterForRule($sRule)
{
if (preg_match('/^font($|-)/', $sRule)) {
return [',', '/', ' '];
}
return [',', ' ', '/'];
}
/**
* @return int
*/
public function getLineNo()
{
return $this->iLineNo;
}
/**
* @return int
*/
public function getColNo()
{
return $this->iColNo;
}
/**
* @param int $iLine
* @param int $iColumn
*
* @return void
*/
public function setPosition($iLine, $iColumn)
{
$this->iColNo = $iColumn;
$this->iLineNo = $iLine;
}
/**
* @param string $sRule
*
* @return void
*/
public function setRule($sRule)
{
$this->sRule = $sRule;
}
/**
* @return string
*/
public function getRule()
{
return $this->sRule;
}
/**
* @return RuleValueList|null
*/
public function getValue()
{
return $this->mValue;
}
/**
* @param RuleValueList|null $mValue
*
* @return void
*/
public function setValue($mValue)
{
$this->mValue = $mValue;
}
/**
* @param array<array-key, array<array-key, RuleValueList>> $aSpaceSeparatedValues
*
* @return RuleValueList
*
* @deprecated will be removed in version 9.0
* Old-Style 2-dimensional array given. Retained for (some) backwards-compatibility.
* Use `setValue()` instead and wrap the value inside a RuleValueList if necessary.
*/
public function setValues(array $aSpaceSeparatedValues)
{
$oSpaceSeparatedList = null;
if (count($aSpaceSeparatedValues) > 1) {
$oSpaceSeparatedList = new RuleValueList(' ', $this->iLineNo);
}
foreach ($aSpaceSeparatedValues as $aCommaSeparatedValues) {
$oCommaSeparatedList = null;
if (count($aCommaSeparatedValues) > 1) {
$oCommaSeparatedList = new RuleValueList(',', $this->iLineNo);
}
foreach ($aCommaSeparatedValues as $mValue) {
if (!$oSpaceSeparatedList && !$oCommaSeparatedList) {
$this->mValue = $mValue;
return $mValue;
}
if ($oCommaSeparatedList) {
$oCommaSeparatedList->addListComponent($mValue);
} else {
$oSpaceSeparatedList->addListComponent($mValue);
}
}
if (!$oSpaceSeparatedList) {
$this->mValue = $oCommaSeparatedList;
return $oCommaSeparatedList;
} else {
$oSpaceSeparatedList->addListComponent($oCommaSeparatedList);
}
}
$this->mValue = $oSpaceSeparatedList;
return $oSpaceSeparatedList;
}
/**
* @return array<int, array<int, RuleValueList>>
*
* @deprecated will be removed in version 9.0
* Old-Style 2-dimensional array returned. Retained for (some) backwards-compatibility.
* Use `getValue()` instead and check for the existence of a (nested set of) ValueList object(s).
*/
public function getValues()
{
if (!$this->mValue instanceof RuleValueList) {
return [[$this->mValue]];
}
if ($this->mValue->getListSeparator() === ',') {
return [$this->mValue->getListComponents()];
}
$aResult = [];
foreach ($this->mValue->getListComponents() as $mValue) {
if (!$mValue instanceof RuleValueList || $mValue->getListSeparator() !== ',') {
$aResult[] = [$mValue];
continue;
}
if ($this->mValue->getListSeparator() === ' ' || count($aResult) === 0) {
$aResult[] = [];
}
foreach ($mValue->getListComponents() as $mValue) {
$aResult[count($aResult) - 1][] = $mValue;
}
}
return $aResult;
}
/**
* Adds a value to the existing value. Value will be appended if a `RuleValueList` exists of the given type.
* Otherwise, the existing value will be wrapped by one.
*
* @param RuleValueList|array<int, RuleValueList> $mValue
* @param string $sType
*
* @return void
*/
public function addValue($mValue, $sType = ' ')
{
if (!is_array($mValue)) {
$mValue = [$mValue];
}
if (!$this->mValue instanceof RuleValueList || $this->mValue->getListSeparator() !== $sType) {
$mCurrentValue = $this->mValue;
$this->mValue = new RuleValueList($sType, $this->iLineNo);
if ($mCurrentValue) {
$this->mValue->addListComponent($mCurrentValue);
}
}
foreach ($mValue as $mValueItem) {
$this->mValue->addListComponent($mValueItem);
}
}
/**
* @param int $iModifier
*
* @return void
*/
public function addIeHack($iModifier)
{
$this->aIeHack[] = $iModifier;
}
/**
* @param array<int, int> $aModifiers
*
* @return void
*/
public function setIeHack(array $aModifiers)
{
$this->aIeHack = $aModifiers;
}
/**
* @return array<int, int>
*/
public function getIeHack()
{
return $this->aIeHack;
}
/**
* @param bool $bIsImportant
*
* @return void
*/
public function setIsImportant($bIsImportant)
{
$this->bIsImportant = $bIsImportant;
}
/**
* @return bool
*/
public function getIsImportant()
{
return $this->bIsImportant;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
$sResult = "{$this->sRule}:{$oOutputFormat->spaceAfterRuleName()}";
if ($this->mValue instanceof Value) { //Can also be a ValueList
$sResult .= $this->mValue->render($oOutputFormat);
} else {
$sResult .= $this->mValue;
}
if (!empty($this->aIeHack)) {
$sResult .= ' \\' . implode('\\', $this->aIeHack);
}
if ($this->bIsImportant) {
$sResult .= ' !important';
}
$sResult .= ';';
return $sResult;
}
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function addComments(array $aComments)
{
$this->aComments = array_merge($this->aComments, $aComments);
}
/**
* @return array<array-key, Comment>
*/
public function getComments()
{
return $this->aComments;
}
/**
* @param array<array-key, Comment> $aComments
*
* @return void
*/
public function setComments(array $aComments)
{
$this->aComments = $aComments;
}
}

73
lib/sabberworm/php-css-parser/src/RuleSet/AtRuleSet.php Normal file
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<?php
namespace Sabberworm\CSS\RuleSet;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Property\AtRule;
/**
* A RuleSet constructed by an unknown at-rule. `@font-face` rules are rendered into AtRuleSet objects.
*/
class AtRuleSet extends RuleSet implements AtRule
{
/**
* @var string
*/
private $sType;
/**
* @var string
*/
private $sArgs;
/**
* @param string $sType
* @param string $sArgs
* @param int $iLineNo
*/
public function __construct($sType, $sArgs = '', $iLineNo = 0)
{
parent::__construct($iLineNo);
$this->sType = $sType;
$this->sArgs = $sArgs;
}
/**
* @return string
*/
public function atRuleName()
{
return $this->sType;
}
/**
* @return string
*/
public function atRuleArgs()
{
return $this->sArgs;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
$sArgs = $this->sArgs;
if ($sArgs) {
$sArgs = ' ' . $sArgs;
}
$sResult = "@{$this->sType}$sArgs{$oOutputFormat->spaceBeforeOpeningBrace()}{";
$sResult .= parent::render($oOutputFormat);
$sResult .= '}';
return $sResult;
}
}

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lib/sabberworm/php-css-parser/src/RuleSet/DeclarationBlock.php Normal file
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<?php
namespace Sabberworm\CSS\RuleSet;
use Sabberworm\CSS\CSSList\CSSList;
use Sabberworm\CSS\CSSList\KeyFrame;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Parsing\OutputException;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
use Sabberworm\CSS\Property\KeyframeSelector;
use Sabberworm\CSS\Property\Selector;
use Sabberworm\CSS\Rule\Rule;
use Sabberworm\CSS\Value\Color;
use Sabberworm\CSS\Value\RuleValueList;
use Sabberworm\CSS\Value\Size;
use Sabberworm\CSS\Value\URL;
use Sabberworm\CSS\Value\Value;
/**
* Declaration blocks are the parts of a CSS file which denote the rules belonging to a selector.
*
* Declaration blocks usually appear directly inside a `Document` or another `CSSList` (mostly a `MediaQuery`).
*/
class DeclarationBlock extends RuleSet
{
/**
* @var array<int, Selector|string>
*/
private $aSelectors;
/**
* @param int $iLineNo
*/
public function __construct($iLineNo = 0)
{
parent::__construct($iLineNo);
$this->aSelectors = [];
}
/**
* @param CSSList|null $oList
*
* @return DeclarationBlock|false
*
* @throws UnexpectedTokenException
* @throws UnexpectedEOFException
*/
public static function parse(ParserState $oParserState, $oList = null)
{
$aComments = [];
$oResult = new DeclarationBlock($oParserState->currentLine());
try {
$aSelectorParts = [];
$sStringWrapperChar = false;
do {
$aSelectorParts[] = $oParserState->consume(1)
. $oParserState->consumeUntil(['{', '}', '\'', '"'], false, false, $aComments);
if (in_array($oParserState->peek(), ['\'', '"']) && substr(end($aSelectorParts), -1) != "\\") {
if ($sStringWrapperChar === false) {
$sStringWrapperChar = $oParserState->peek();
} elseif ($sStringWrapperChar == $oParserState->peek()) {
$sStringWrapperChar = false;
}
}
} while (!in_array($oParserState->peek(), ['{', '}']) || $sStringWrapperChar !== false);
$oResult->setSelectors(implode('', $aSelectorParts), $oList);
if ($oParserState->comes('{')) {
$oParserState->consume(1);
}
} catch (UnexpectedTokenException $e) {
if ($oParserState->getSettings()->bLenientParsing) {
if (!$oParserState->comes('}')) {
$oParserState->consumeUntil('}', false, true);
}
return false;
} else {
throw $e;
}
}
$oResult->setComments($aComments);
RuleSet::parseRuleSet($oParserState, $oResult);
return $oResult;
}
/**
* @param array<int, Selector|string>|string $mSelector
* @param CSSList|null $oList
*
* @throws UnexpectedTokenException
*/
public function setSelectors($mSelector, $oList = null)
{
if (is_array($mSelector)) {
$this->aSelectors = $mSelector;
} else {
$this->aSelectors = explode(',', $mSelector);
}
foreach ($this->aSelectors as $iKey => $mSelector) {
if (!($mSelector instanceof Selector)) {
if ($oList === null || !($oList instanceof KeyFrame)) {
if (!Selector::isValid($mSelector)) {
throw new UnexpectedTokenException(
"Selector did not match '" . Selector::SELECTOR_VALIDATION_RX . "'.",
$mSelector,
"custom"
);
}
$this->aSelectors[$iKey] = new Selector($mSelector);
} else {
if (!KeyframeSelector::isValid($mSelector)) {
throw new UnexpectedTokenException(
"Selector did not match '" . KeyframeSelector::SELECTOR_VALIDATION_RX . "'.",
$mSelector,
"custom"
);
}
$this->aSelectors[$iKey] = new KeyframeSelector($mSelector);
}
}
}
}
/**
* Remove one of the selectors of the block.
*
* @param Selector|string $mSelector
*
* @return bool
*/
public function removeSelector($mSelector)
{
if ($mSelector instanceof Selector) {
$mSelector = $mSelector->getSelector();
}
foreach ($this->aSelectors as $iKey => $oSelector) {
if ($oSelector->getSelector() === $mSelector) {
unset($this->aSelectors[$iKey]);
return true;
}
}
return false;
}
/**
* @return array<int, Selector|string>
*
* @deprecated will be removed in version 9.0; use `getSelectors()` instead
*/
public function getSelector()
{
return $this->getSelectors();
}
/**
* @param Selector|string $mSelector
* @param CSSList|null $oList
*
* @return void
*
* @deprecated will be removed in version 9.0; use `setSelectors()` instead
*/
public function setSelector($mSelector, $oList = null)
{
$this->setSelectors($mSelector, $oList);
}
/**
* @return array<int, Selector|string>
*/
public function getSelectors()
{
return $this->aSelectors;
}
/**
* Splits shorthand declarations (e.g. `margin` or `font`) into their constituent parts.
*
* @return void
*/
public function expandShorthands()
{
// border must be expanded before dimensions
$this->expandBorderShorthand();
$this->expandDimensionsShorthand();
$this->expandFontShorthand();
$this->expandBackgroundShorthand();
$this->expandListStyleShorthand();
}
/**
* Creates shorthand declarations (e.g. `margin` or `font`) whenever possible.
*
* @return void
*/
public function createShorthands()
{
$this->createBackgroundShorthand();
$this->createDimensionsShorthand();
// border must be shortened after dimensions
$this->createBorderShorthand();
$this->createFontShorthand();
$this->createListStyleShorthand();
}
/**
* Splits shorthand border declarations (e.g. `border: 1px red;`).
*
* Additional splitting happens in expandDimensionsShorthand.
*
* Multiple borders are not yet supported as of 3.
*
* @return void
*/
public function expandBorderShorthand()
{
$aBorderRules = [
'border',
'border-left',
'border-right',
'border-top',
'border-bottom',
];
$aBorderSizes = [
'thin',
'medium',
'thick',
];
$aRules = $this->getRulesAssoc();
foreach ($aBorderRules as $sBorderRule) {
if (!isset($aRules[$sBorderRule])) {
continue;
}
$oRule = $aRules[$sBorderRule];
$mRuleValue = $oRule->getValue();
$aValues = [];
if (!$mRuleValue instanceof RuleValueList) {
$aValues[] = $mRuleValue;
} else {
$aValues = $mRuleValue->getListComponents();
}
foreach ($aValues as $mValue) {
if ($mValue instanceof Value) {
$mNewValue = clone $mValue;
} else {
$mNewValue = $mValue;
}
if ($mValue instanceof Size) {
$sNewRuleName = $sBorderRule . "-width";
} elseif ($mValue instanceof Color) {
$sNewRuleName = $sBorderRule . "-color";
} else {
if (in_array($mValue, $aBorderSizes)) {
$sNewRuleName = $sBorderRule . "-width";
} else {
$sNewRuleName = $sBorderRule . "-style";
}
}
$oNewRule = new Rule($sNewRuleName, $oRule->getLineNo(), $oRule->getColNo());
$oNewRule->setIsImportant($oRule->getIsImportant());
$oNewRule->addValue([$mNewValue]);
$this->addRule($oNewRule);
}
$this->removeRule($sBorderRule);
}
}
/**
* Splits shorthand dimensional declarations (e.g. `margin: 0px auto;`)
* into their constituent parts.
*
* Handles `margin`, `padding`, `border-color`, `border-style` and `border-width`.
*
* @return void
*/
public function expandDimensionsShorthand()
{
$aExpansions = [
'margin' => 'margin-%s',
'padding' => 'padding-%s',
'border-color' => 'border-%s-color',
'border-style' => 'border-%s-style',
'border-width' => 'border-%s-width',
];
$aRules = $this->getRulesAssoc();
foreach ($aExpansions as $sProperty => $sExpanded) {
if (!isset($aRules[$sProperty])) {
continue;
}
$oRule = $aRules[$sProperty];
$mRuleValue = $oRule->getValue();
$aValues = [];
if (!$mRuleValue instanceof RuleValueList) {
$aValues[] = $mRuleValue;
} else {
$aValues = $mRuleValue->getListComponents();
}
$top = $right = $bottom = $left = null;
switch (count($aValues)) {
case 1:
$top = $right = $bottom = $left = $aValues[0];
break;
case 2:
$top = $bottom = $aValues[0];
$left = $right = $aValues[1];
break;
case 3:
$top = $aValues[0];
$left = $right = $aValues[1];
$bottom = $aValues[2];
break;
case 4:
$top = $aValues[0];
$right = $aValues[1];
$bottom = $aValues[2];
$left = $aValues[3];
break;
}
foreach (['top', 'right', 'bottom', 'left'] as $sPosition) {
$oNewRule = new Rule(sprintf($sExpanded, $sPosition), $oRule->getLineNo(), $oRule->getColNo());
$oNewRule->setIsImportant($oRule->getIsImportant());
$oNewRule->addValue(${$sPosition});
$this->addRule($oNewRule);
}
$this->removeRule($sProperty);
}
}
/**
* Converts shorthand font declarations
* (e.g. `font: 300 italic 11px/14px verdana, helvetica, sans-serif;`)
* into their constituent parts.
*
* @return void
*/
public function expandFontShorthand()
{
$aRules = $this->getRulesAssoc();
if (!isset($aRules['font'])) {
return;
}
$oRule = $aRules['font'];
// reset properties to 'normal' per http://www.w3.org/TR/21/fonts.html#font-shorthand
$aFontProperties = [
'font-style' => 'normal',
'font-variant' => 'normal',
'font-weight' => 'normal',
'font-size' => 'normal',
'line-height' => 'normal',
];
$mRuleValue = $oRule->getValue();
$aValues = [];
if (!$mRuleValue instanceof RuleValueList) {
$aValues[] = $mRuleValue;
} else {
$aValues = $mRuleValue->getListComponents();
}
foreach ($aValues as $mValue) {
if (!$mValue instanceof Value) {
$mValue = mb_strtolower($mValue);
}
if (in_array($mValue, ['normal', 'inherit'])) {
foreach (['font-style', 'font-weight', 'font-variant'] as $sProperty) {
if (!isset($aFontProperties[$sProperty])) {
$aFontProperties[$sProperty] = $mValue;
}
}
} elseif (in_array($mValue, ['italic', 'oblique'])) {
$aFontProperties['font-style'] = $mValue;
} elseif ($mValue == 'small-caps') {
$aFontProperties['font-variant'] = $mValue;
} elseif (
in_array($mValue, ['bold', 'bolder', 'lighter'])
|| ($mValue instanceof Size
&& in_array($mValue->getSize(), range(100, 900, 100)))
) {
$aFontProperties['font-weight'] = $mValue;
} elseif ($mValue instanceof RuleValueList && $mValue->getListSeparator() == '/') {
list($oSize, $oHeight) = $mValue->getListComponents();
$aFontProperties['font-size'] = $oSize;
$aFontProperties['line-height'] = $oHeight;
} elseif ($mValue instanceof Size && $mValue->getUnit() !== null) {
$aFontProperties['font-size'] = $mValue;
} else {
$aFontProperties['font-family'] = $mValue;
}
}
foreach ($aFontProperties as $sProperty => $mValue) {
$oNewRule = new Rule($sProperty, $oRule->getLineNo(), $oRule->getColNo());
$oNewRule->addValue($mValue);
$oNewRule->setIsImportant($oRule->getIsImportant());
$this->addRule($oNewRule);
}
$this->removeRule('font');
}
/**
* Converts shorthand background declarations
* (e.g. `background: url("chess.png") gray 50% repeat fixed;`)
* into their constituent parts.
*
* @see http://www.w3.org/TR/21/colors.html#propdef-background
*
* @return void
*/
public function expandBackgroundShorthand()
{
$aRules = $this->getRulesAssoc();
if (!isset($aRules['background'])) {
return;
}
$oRule = $aRules['background'];
$aBgProperties = [
'background-color' => ['transparent'],
'background-image' => ['none'],
'background-repeat' => ['repeat'],
'background-attachment' => ['scroll'],
'background-position' => [
new Size(0, '%', null, false, $this->iLineNo),
new Size(0, '%', null, false, $this->iLineNo),
],
];
$mRuleValue = $oRule->getValue();
$aValues = [];
if (!$mRuleValue instanceof RuleValueList) {
$aValues[] = $mRuleValue;
} else {
$aValues = $mRuleValue->getListComponents();
}
if (count($aValues) == 1 && $aValues[0] == 'inherit') {
foreach ($aBgProperties as $sProperty => $mValue) {
$oNewRule = new Rule($sProperty, $oRule->getLineNo(), $oRule->getColNo());
$oNewRule->addValue('inherit');
$oNewRule->setIsImportant($oRule->getIsImportant());
$this->addRule($oNewRule);
}
$this->removeRule('background');
return;
}
$iNumBgPos = 0;
foreach ($aValues as $mValue) {
if (!$mValue instanceof Value) {
$mValue = mb_strtolower($mValue);
}
if ($mValue instanceof URL) {
$aBgProperties['background-image'] = $mValue;
} elseif ($mValue instanceof Color) {
$aBgProperties['background-color'] = $mValue;
} elseif (in_array($mValue, ['scroll', 'fixed'])) {
$aBgProperties['background-attachment'] = $mValue;
} elseif (in_array($mValue, ['repeat', 'no-repeat', 'repeat-x', 'repeat-y'])) {
$aBgProperties['background-repeat'] = $mValue;
} elseif (
in_array($mValue, ['left', 'center', 'right', 'top', 'bottom'])
|| $mValue instanceof Size
) {
if ($iNumBgPos == 0) {
$aBgProperties['background-position'][0] = $mValue;
$aBgProperties['background-position'][1] = 'center';
} else {
$aBgProperties['background-position'][$iNumBgPos] = $mValue;
}
$iNumBgPos++;
}
}
foreach ($aBgProperties as $sProperty => $mValue) {
$oNewRule = new Rule($sProperty, $oRule->getLineNo(), $oRule->getColNo());
$oNewRule->setIsImportant($oRule->getIsImportant());
$oNewRule->addValue($mValue);
$this->addRule($oNewRule);
}
$this->removeRule('background');
}
/**
* @return void
*/
public function expandListStyleShorthand()
{
$aListProperties = [
'list-style-type' => 'disc',
'list-style-position' => 'outside',
'list-style-image' => 'none',
];
$aListStyleTypes = [
'none',
'disc',
'circle',
'square',
'decimal-leading-zero',
'decimal',
'lower-roman',
'upper-roman',
'lower-greek',
'lower-alpha',
'lower-latin',
'upper-alpha',
'upper-latin',
'hebrew',
'armenian',
'georgian',
'cjk-ideographic',
'hiragana',
'hira-gana-iroha',
'katakana-iroha',
'katakana',
];
$aListStylePositions = [
'inside',
'outside',
];
$aRules = $this->getRulesAssoc();
if (!isset($aRules['list-style'])) {
return;
}
$oRule = $aRules['list-style'];
$mRuleValue = $oRule->getValue();
$aValues = [];
if (!$mRuleValue instanceof RuleValueList) {
$aValues[] = $mRuleValue;
} else {
$aValues = $mRuleValue->getListComponents();
}
if (count($aValues) == 1 && $aValues[0] == 'inherit') {
foreach ($aListProperties as $sProperty => $mValue) {
$oNewRule = new Rule($sProperty, $oRule->getLineNo(), $oRule->getColNo());
$oNewRule->addValue('inherit');
$oNewRule->setIsImportant($oRule->getIsImportant());
$this->addRule($oNewRule);
}
$this->removeRule('list-style');
return;
}
foreach ($aValues as $mValue) {
if (!$mValue instanceof Value) {
$mValue = mb_strtolower($mValue);
}
if ($mValue instanceof Url) {
$aListProperties['list-style-image'] = $mValue;
} elseif (in_array($mValue, $aListStyleTypes)) {
$aListProperties['list-style-types'] = $mValue;
} elseif (in_array($mValue, $aListStylePositions)) {
$aListProperties['list-style-position'] = $mValue;
}
}
foreach ($aListProperties as $sProperty => $mValue) {
$oNewRule = new Rule($sProperty, $oRule->getLineNo(), $oRule->getColNo());
$oNewRule->setIsImportant($oRule->getIsImportant());
$oNewRule->addValue($mValue);
$this->addRule($oNewRule);
}
$this->removeRule('list-style');
}
/**
* @param array<array-key, string> $aProperties
* @param string $sShorthand
*
* @return void
*/
public function createShorthandProperties(array $aProperties, $sShorthand)
{
$aRules = $this->getRulesAssoc();
$aNewValues = [];
foreach ($aProperties as $sProperty) {
if (!isset($aRules[$sProperty])) {
continue;
}
$oRule = $aRules[$sProperty];
if (!$oRule->getIsImportant()) {
$mRuleValue = $oRule->getValue();
$aValues = [];
if (!$mRuleValue instanceof RuleValueList) {
$aValues[] = $mRuleValue;
} else {
$aValues = $mRuleValue->getListComponents();
}
foreach ($aValues as $mValue) {
$aNewValues[] = $mValue;
}
$this->removeRule($sProperty);
}
}
if (count($aNewValues)) {
$oNewRule = new Rule($sShorthand, $oRule->getLineNo(), $oRule->getColNo());
foreach ($aNewValues as $mValue) {
$oNewRule->addValue($mValue);
}
$this->addRule($oNewRule);
}
}
/**
* @return void
*/
public function createBackgroundShorthand()
{
$aProperties = [
'background-color',
'background-image',
'background-repeat',
'background-position',
'background-attachment',
];
$this->createShorthandProperties($aProperties, 'background');
}
/**
* @return void
*/
public function createListStyleShorthand()
{
$aProperties = [
'list-style-type',
'list-style-position',
'list-style-image',
];
$this->createShorthandProperties($aProperties, 'list-style');
}
/**
* Combines `border-color`, `border-style` and `border-width` into `border`.
*
* Should be run after `create_dimensions_shorthand`!
*
* @return void
*/
public function createBorderShorthand()
{
$aProperties = [
'border-width',
'border-style',
'border-color',
];
$this->createShorthandProperties($aProperties, 'border');
}
/**
* Looks for long format CSS dimensional properties
* (margin, padding, border-color, border-style and border-width)
* and converts them into shorthand CSS properties.
*
* @return void
*/
public function createDimensionsShorthand()
{
$aPositions = ['top', 'right', 'bottom', 'left'];
$aExpansions = [
'margin' => 'margin-%s',
'padding' => 'padding-%s',
'border-color' => 'border-%s-color',
'border-style' => 'border-%s-style',
'border-width' => 'border-%s-width',
];
$aRules = $this->getRulesAssoc();
foreach ($aExpansions as $sProperty => $sExpanded) {
$aFoldable = [];
foreach ($aRules as $sRuleName => $oRule) {
foreach ($aPositions as $sPosition) {
if ($sRuleName == sprintf($sExpanded, $sPosition)) {
$aFoldable[$sRuleName] = $oRule;
}
}
}
// All four dimensions must be present
if (count($aFoldable) == 4) {
$aValues = [];
foreach ($aPositions as $sPosition) {
$oRule = $aRules[sprintf($sExpanded, $sPosition)];
$mRuleValue = $oRule->getValue();
$aRuleValues = [];
if (!$mRuleValue instanceof RuleValueList) {
$aRuleValues[] = $mRuleValue;
} else {
$aRuleValues = $mRuleValue->getListComponents();
}
$aValues[$sPosition] = $aRuleValues;
}
$oNewRule = new Rule($sProperty, $oRule->getLineNo(), $oRule->getColNo());
if ((string)$aValues['left'][0] == (string)$aValues['right'][0]) {
if ((string)$aValues['top'][0] == (string)$aValues['bottom'][0]) {
if ((string)$aValues['top'][0] == (string)$aValues['left'][0]) {
// All 4 sides are equal
$oNewRule->addValue($aValues['top']);
} else {
// Top and bottom are equal, left and right are equal
$oNewRule->addValue($aValues['top']);
$oNewRule->addValue($aValues['left']);
}
} else {
// Only left and right are equal
$oNewRule->addValue($aValues['top']);
$oNewRule->addValue($aValues['left']);
$oNewRule->addValue($aValues['bottom']);
}
} else {
// No sides are equal
$oNewRule->addValue($aValues['top']);
$oNewRule->addValue($aValues['left']);
$oNewRule->addValue($aValues['bottom']);
$oNewRule->addValue($aValues['right']);
}
$this->addRule($oNewRule);
foreach ($aPositions as $sPosition) {
$this->removeRule(sprintf($sExpanded, $sPosition));
}
}
}
}
/**
* Looks for long format CSS font properties (e.g. `font-weight`) and
* tries to convert them into a shorthand CSS `font` property.
*
* At least `font-size` AND `font-family` must be present in order to create a shorthand declaration.
*
* @return void
*/
public function createFontShorthand()
{
$aFontProperties = [
'font-style',
'font-variant',
'font-weight',
'font-size',
'line-height',
'font-family',
];
$aRules = $this->getRulesAssoc();
if (!isset($aRules['font-size']) || !isset($aRules['font-family'])) {
return;
}
$oOldRule = isset($aRules['font-size']) ? $aRules['font-size'] : $aRules['font-family'];
$oNewRule = new Rule('font', $oOldRule->getLineNo(), $oOldRule->getColNo());
unset($oOldRule);
foreach (['font-style', 'font-variant', 'font-weight'] as $sProperty) {
if (isset($aRules[$sProperty])) {
$oRule = $aRules[$sProperty];
$mRuleValue = $oRule->getValue();
$aValues = [];
if (!$mRuleValue instanceof RuleValueList) {
$aValues[] = $mRuleValue;
} else {
$aValues = $mRuleValue->getListComponents();
}
if ($aValues[0] !== 'normal') {
$oNewRule->addValue($aValues[0]);
}
}
}
// Get the font-size value
$oRule = $aRules['font-size'];
$mRuleValue = $oRule->getValue();
$aFSValues = [];
if (!$mRuleValue instanceof RuleValueList) {
$aFSValues[] = $mRuleValue;
} else {
$aFSValues = $mRuleValue->getListComponents();
}
// But wait to know if we have line-height to add it
if (isset($aRules['line-height'])) {
$oRule = $aRules['line-height'];
$mRuleValue = $oRule->getValue();
$aLHValues = [];
if (!$mRuleValue instanceof RuleValueList) {
$aLHValues[] = $mRuleValue;
} else {
$aLHValues = $mRuleValue->getListComponents();
}
if ($aLHValues[0] !== 'normal') {
$val = new RuleValueList('/', $this->iLineNo);
$val->addListComponent($aFSValues[0]);
$val->addListComponent($aLHValues[0]);
$oNewRule->addValue($val);
}
} else {
$oNewRule->addValue($aFSValues[0]);
}
$oRule = $aRules['font-family'];
$mRuleValue = $oRule->getValue();
$aFFValues = [];
if (!$mRuleValue instanceof RuleValueList) {
$aFFValues[] = $mRuleValue;
} else {
$aFFValues = $mRuleValue->getListComponents();
}
$oFFValue = new RuleValueList(',', $this->iLineNo);
$oFFValue->setListComponents($aFFValues);
$oNewRule->addValue($oFFValue);
$this->addRule($oNewRule);
foreach ($aFontProperties as $sProperty) {
$this->removeRule($sProperty);
}
}
/**
* @return string
*
* @throws OutputException
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*
* @throws OutputException
*/
public function render(OutputFormat $oOutputFormat)
{
if (count($this->aSelectors) === 0) {
// If all the selectors have been removed, this declaration block becomes invalid
throw new OutputException("Attempt to print declaration block with missing selector", $this->iLineNo);
}
$sResult = $oOutputFormat->sBeforeDeclarationBlock;
$sResult .= $oOutputFormat->implode(
$oOutputFormat->spaceBeforeSelectorSeparator() . ',' . $oOutputFormat->spaceAfterSelectorSeparator(),
$this->aSelectors
);
$sResult .= $oOutputFormat->sAfterDeclarationBlockSelectors;
$sResult .= $oOutputFormat->spaceBeforeOpeningBrace() . '{';
$sResult .= parent::render($oOutputFormat);
$sResult .= '}';
$sResult .= $oOutputFormat->sAfterDeclarationBlock;
return $sResult;
}
}

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lib/sabberworm/php-css-parser/src/RuleSet/RuleSet.php Normal file
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<?php
namespace Sabberworm\CSS\RuleSet;
use Sabberworm\CSS\Comment\Comment;
use Sabberworm\CSS\Comment\Commentable;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
use Sabberworm\CSS\Renderable;
use Sabberworm\CSS\Rule\Rule;
/**
* RuleSet is a generic superclass denoting rules. The typical example for rule sets are declaration block.
* However, unknown At-Rules (like `@font-face`) are also rule sets.
*/
abstract class RuleSet implements Renderable, Commentable
{
/**
* @var array<string, Rule>
*/
private $aRules;
/**
* @var int
*/
protected $iLineNo;
/**
* @var array<array-key, Comment>
*/
protected $aComments;
/**
* @param int $iLineNo
*/
public function __construct($iLineNo = 0)
{
$this->aRules = [];
$this->iLineNo = $iLineNo;
$this->aComments = [];
}
/**
* @return void
*
* @throws UnexpectedTokenException
* @throws UnexpectedEOFException
*/
public static function parseRuleSet(ParserState $oParserState, RuleSet $oRuleSet)
{
while ($oParserState->comes(';')) {
$oParserState->consume(';');
}
while (!$oParserState->comes('}')) {
$oRule = null;
if ($oParserState->getSettings()->bLenientParsing) {
try {
$oRule = Rule::parse($oParserState);
} catch (UnexpectedTokenException $e) {
try {
$sConsume = $oParserState->consumeUntil(["\n", ";", '}'], true);
// We need to “unfind” the matches to the end of the ruleSet as this will be matched later
if ($oParserState->streql(substr($sConsume, -1), '}')) {
$oParserState->backtrack(1);
} else {
while ($oParserState->comes(';')) {
$oParserState->consume(';');
}
}
} catch (UnexpectedTokenException $e) {
// We’ve reached the end of the document. Just close the RuleSet.
return;
}
}
} else {
$oRule = Rule::parse($oParserState);
}
if ($oRule) {
$oRuleSet->addRule($oRule);
}
}
$oParserState->consume('}');
}
/**
* @return int
*/
public function getLineNo()
{
return $this->iLineNo;
}
/**
* @param Rule|null $oSibling
*
* @return void
*/
public function addRule(Rule $oRule, Rule $oSibling = null)
{
$sRule = $oRule->getRule();
if (!isset($this->aRules[$sRule])) {
$this->aRules[$sRule] = [];
}
$iPosition = count($this->aRules[$sRule]);
if ($oSibling !== null) {
$iSiblingPos = array_search($oSibling, $this->aRules[$sRule], true);
if ($iSiblingPos !== false) {
$iPosition = $iSiblingPos;
$oRule->setPosition($oSibling->getLineNo(), $oSibling->getColNo() - 1);
}
}
if ($oRule->getLineNo() === 0 && $oRule->getColNo() === 0) {
//this node is added manually, give it the next best line
$rules = $this->getRules();
$pos = count($rules);
if ($pos > 0) {
$last = $rules[$pos - 1];
$oRule->setPosition($last->getLineNo() + 1, 0);
}
}
array_splice($this->aRules[$sRule], $iPosition, 0, [$oRule]);
}
/**
* Returns all rules matching the given rule name
*
* @example $oRuleSet->getRules('font') // returns array(0 => $oRule, …) or array().
*
* @example $oRuleSet->getRules('font-')
* //returns an array of all rules either beginning with font- or matching font.
*
* @param Rule|string|null $mRule
* Pattern to search for. If null, returns all rules.
* If the pattern ends with a dash, all rules starting with the pattern are returned
* as well as one matching the pattern with the dash excluded.
* Passing a Rule behaves like calling `getRules($mRule->getRule())`.
*
* @return array<int, Rule>
*/
public function getRules($mRule = null)
{
if ($mRule instanceof Rule) {
$mRule = $mRule->getRule();
}
/** @var array<int, Rule> $aResult */
$aResult = [];
foreach ($this->aRules as $sName => $aRules) {
// Either no search rule is given or the search rule matches the found rule exactly
// or the search rule ends in “-” and the found rule starts with the search rule.
if (
!$mRule || $sName === $mRule
|| (
strrpos($mRule, '-') === strlen($mRule) - strlen('-')
&& (strpos($sName, $mRule) === 0 || $sName === substr($mRule, 0, -1))
)
) {
$aResult = array_merge($aResult, $aRules);
}
}
usort($aResult, function (Rule $first, Rule $second) {
if ($first->getLineNo() === $second->getLineNo()) {
return $first->getColNo() - $second->getColNo();
}
return $first->getLineNo() - $second->getLineNo();
});
return $aResult;
}
/**
* Overrides all the rules of this set.
*
* @param array<array-key, Rule> $aRules The rules to override with.
*
* @return void
*/
public function setRules(array $aRules)
{
$this->aRules = [];
foreach ($aRules as $rule) {
$this->addRule($rule);
}
}
/**
* Returns all rules matching the given pattern and returns them in an associative array with the rule’s name
* as keys. This method exists mainly for backwards-compatibility and is really only partially useful.
*
* Note: This method loses some information: Calling this (with an argument of `background-`) on a declaration block
* like `{ background-color: green; background-color; rgba(0, 127, 0, 0.7); }` will only yield an associative array
* containing the rgba-valued rule while `getRules()` would yield an indexed array containing both.
*
* @param Rule|string|null $mRule $mRule
* Pattern to search for. If null, returns all rules. If the pattern ends with a dash,
* all rules starting with the pattern are returned as well as one matching the pattern with the dash
* excluded. Passing a Rule behaves like calling `getRules($mRule->getRule())`.
*
* @return array<string, Rule>
*/
public function getRulesAssoc($mRule = null)
{
/** @var array<string, Rule> $aResult */
$aResult = [];
foreach ($this->getRules($mRule) as $oRule) {
$aResult[$oRule->getRule()] = $oRule;
}
return $aResult;
}
/**
* Removes a rule from this RuleSet. This accepts all the possible values that `getRules()` accepts.
*
* If given a Rule, it will only remove this particular rule (by identity).
* If given a name, it will remove all rules by that name.
*
* Note: this is different from pre-v.2.0 behaviour of PHP-CSS-Parser, where passing a Rule instance would
* remove all rules with the same name. To get the old behaviour, use `removeRule($oRule->getRule())`.
*
* @param Rule|string|null $mRule
* pattern to remove. If $mRule is null, all rules are removed. If the pattern ends in a dash,
* all rules starting with the pattern are removed as well as one matching the pattern with the dash
* excluded. Passing a Rule behaves matches by identity.
*
* @return void
*/
public function removeRule($mRule)
{
if ($mRule instanceof Rule) {
$sRule = $mRule->getRule();
if (!isset($this->aRules[$sRule])) {
return;
}
foreach ($this->aRules[$sRule] as $iKey => $oRule) {
if ($oRule === $mRule) {
unset($this->aRules[$sRule][$iKey]);
}
}
} else {
foreach ($this->aRules as $sName => $aRules) {
// Either no search rule is given or the search rule matches the found rule exactly
// or the search rule ends in “-” and the found rule starts with the search rule or equals it
// (without the trailing dash).
if (
!$mRule || $sName === $mRule
|| (strrpos($mRule, '-') === strlen($mRule) - strlen('-')
&& (strpos($sName, $mRule) === 0 || $sName === substr($mRule, 0, -1)))
) {
unset($this->aRules[$sName]);
}
}
}
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
$sResult = '';
$bIsFirst = true;
foreach ($this->aRules as $aRules) {
foreach ($aRules as $oRule) {
$sRendered = $oOutputFormat->safely(function () use ($oRule, $oOutputFormat) {
return $oRule->render($oOutputFormat->nextLevel());
});
if ($sRendered === null) {
continue;
}
if ($bIsFirst) {
$bIsFirst = false;
$sResult .= $oOutputFormat->nextLevel()->spaceBeforeRules();
} else {
$sResult .= $oOutputFormat->nextLevel()->spaceBetweenRules();
}
$sResult .= $sRendered;
}
}
if (!$bIsFirst) {
// Had some output
$sResult .= $oOutputFormat->spaceAfterRules();
}
return $oOutputFormat->removeLastSemicolon($sResult);
}
/**
* @param array<string, Comment> $aComments
*
* @return void
*/
public function addComments(array $aComments)
{
$this->aComments = array_merge($this->aComments, $aComments);
}
/**
* @return array<string, Comment>
*/
public function getComments()
{
return $this->aComments;
}
/**
* @param array<string, Comment> $aComments
*
* @return void
*/
public function setComments(array $aComments)
{
$this->aComments = $aComments;
}
}

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lib/sabberworm/php-css-parser/src/Settings.php Normal file
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<?php
namespace Sabberworm\CSS;
/**
* Parser settings class.
*
* Configure parser behaviour here.
*/
class Settings
{
/**
* Multi-byte string support.
* If true (mbstring extension must be enabled), will use (slower) `mb_strlen`, `mb_convert_case`, `mb_substr`
* and `mb_strpos` functions. Otherwise, the normal (ASCII-Only) functions will be used.
*
* @var bool
*/
public $bMultibyteSupport;
/**
* The default charset for the CSS if no `@charset` rule is found. Defaults to utf-8.
*
* @var string
*/
public $sDefaultCharset = 'utf-8';
/**
* Lenient parsing. When used (which is true by default), the parser will not choke
* on unexpected tokens but simply ignore them.
*
* @var bool
*/
public $bLenientParsing = true;
private function __construct()
{
$this->bMultibyteSupport = extension_loaded('mbstring');
}
/**
* @return self new instance
*/
public static function create()
{
return new Settings();
}
/**
* @param bool $bMultibyteSupport
*
* @return self fluent interface
*/
public function withMultibyteSupport($bMultibyteSupport = true)
{
$this->bMultibyteSupport = $bMultibyteSupport;
return $this;
}
/**
* @param string $sDefaultCharset
*
* @return self fluent interface
*/
public function withDefaultCharset($sDefaultCharset)
{
$this->sDefaultCharset = $sDefaultCharset;
return $this;
}
/**
* @param bool $bLenientParsing
*
* @return self fluent interface
*/
public function withLenientParsing($bLenientParsing = true)
{
$this->bLenientParsing = $bLenientParsing;
return $this;
}
/**
* @return self fluent interface
*/
public function beStrict()
{
return $this->withLenientParsing(false);
}
}

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lib/sabberworm/php-css-parser/src/Value/CSSFunction.php Normal file
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<?php
namespace Sabberworm\CSS\Value;
use Sabberworm\CSS\OutputFormat;
class CSSFunction extends ValueList
{
/**
* @var string
*/
protected $sName;
/**
* @param string $sName
* @param RuleValueList|array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string> $aArguments
* @param string $sSeparator
* @param int $iLineNo
*/
public function __construct($sName, $aArguments, $sSeparator = ',', $iLineNo = 0)
{
if ($aArguments instanceof RuleValueList) {
$sSeparator = $aArguments->getListSeparator();
$aArguments = $aArguments->getListComponents();
}
$this->sName = $sName;
$this->iLineNo = $iLineNo;
parent::__construct($aArguments, $sSeparator, $iLineNo);
}
/**
* @return string
*/
public function getName()
{
return $this->sName;
}
/**
* @param string $sName
*
* @return void
*/
public function setName($sName)
{
$this->sName = $sName;
}
/**
* @return array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string>
*/
public function getArguments()
{
return $this->aComponents;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
$aArguments = parent::render($oOutputFormat);
return "{$this->sName}({$aArguments})";
}
}

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<?php
namespace Sabberworm\CSS\Value;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\SourceException;
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
class CSSString extends PrimitiveValue
{
/**
* @var string
*/
private $sString;
/**
* @param string $sString
* @param int $iLineNo
*/
public function __construct($sString, $iLineNo = 0)
{
$this->sString = $sString;
parent::__construct($iLineNo);
}
/**
* @return CSSString
*
* @throws SourceException
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
public static function parse(ParserState $oParserState)
{
$sBegin = $oParserState->peek();
$sQuote = null;
if ($sBegin === "'") {
$sQuote = "'";
} elseif ($sBegin === '"') {
$sQuote = '"';
}
if ($sQuote !== null) {
$oParserState->consume($sQuote);
}
$sResult = "";
$sContent = null;
if ($sQuote === null) {
// Unquoted strings end in whitespace or with braces, brackets, parentheses
while (!preg_match('/[\\s{}()<>\\[\\]]/isu', $oParserState->peek())) {
$sResult .= $oParserState->parseCharacter(false);
}
} else {
while (!$oParserState->comes($sQuote)) {
$sContent = $oParserState->parseCharacter(false);
if ($sContent === null) {
throw new SourceException(
"Non-well-formed quoted string {$oParserState->peek(3)}",
$oParserState->currentLine()
);
}
$sResult .= $sContent;
}
$oParserState->consume($sQuote);
}
return new CSSString($sResult, $oParserState->currentLine());
}
/**
* @param string $sString
*
* @return void
*/
public function setString($sString)
{
$this->sString = $sString;
}
/**
* @return string
*/
public function getString()
{
return $this->sString;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
$sString = addslashes($this->sString);
$sString = str_replace("\n", '\A', $sString);
return $oOutputFormat->getStringQuotingType() . $sString . $oOutputFormat->getStringQuotingType();
}
}

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lib/sabberworm/php-css-parser/src/Value/CalcFunction.php Normal file
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<?php
namespace Sabberworm\CSS\Value;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
class CalcFunction extends CSSFunction
{
/**
* @var int
*/
const T_OPERAND = 1;
/**
* @var int
*/
const T_OPERATOR = 2;
/**
* @return CalcFunction
*
* @throws UnexpectedTokenException
* @throws UnexpectedEOFException
*/
public static function parse(ParserState $oParserState)
{
$aOperators = ['+', '-', '*', '/'];
$sFunction = trim($oParserState->consumeUntil('(', false, true));
$oCalcList = new CalcRuleValueList($oParserState->currentLine());
$oList = new RuleValueList(',', $oParserState->currentLine());
$iNestingLevel = 0;
$iLastComponentType = null;
while (!$oParserState->comes(')') || $iNestingLevel > 0) {
$oParserState->consumeWhiteSpace();
if ($oParserState->comes('(')) {
$iNestingLevel++;
$oCalcList->addListComponent($oParserState->consume(1));
$oParserState->consumeWhiteSpace();
continue;
} elseif ($oParserState->comes(')')) {
$iNestingLevel--;
$oCalcList->addListComponent($oParserState->consume(1));
$oParserState->consumeWhiteSpace();
continue;
}
if ($iLastComponentType != CalcFunction::T_OPERAND) {
$oVal = Value::parsePrimitiveValue($oParserState);
$oCalcList->addListComponent($oVal);
$iLastComponentType = CalcFunction::T_OPERAND;
} else {
if (in_array($oParserState->peek(), $aOperators)) {
if (($oParserState->comes('-') || $oParserState->comes('+'))) {
if (
$oParserState->peek(1, -1) != ' '
|| !($oParserState->comes('- ')
|| $oParserState->comes('+ '))
) {
throw new UnexpectedTokenException(
" {$oParserState->peek()} ",
$oParserState->peek(1, -1) . $oParserState->peek(2),
'literal',
$oParserState->currentLine()
);
}
}
$oCalcList->addListComponent($oParserState->consume(1));
$iLastComponentType = CalcFunction::T_OPERATOR;
} else {
throw new UnexpectedTokenException(
sprintf(
'Next token was expected to be an operand of type %s. Instead "%s" was found.',
implode(', ', $aOperators),
$oVal
),
'',
'custom',
$oParserState->currentLine()
);
}
}
$oParserState->consumeWhiteSpace();
}
$oList->addListComponent($oCalcList);
$oParserState->consume(')');
return new CalcFunction($sFunction, $oList, ',', $oParserState->currentLine());
}
}

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lib/sabberworm/php-css-parser/src/Value/CalcRuleValueList.php Normal file
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<?php
namespace Sabberworm\CSS\Value;
use Sabberworm\CSS\OutputFormat;
class CalcRuleValueList extends RuleValueList
{
/**
* @param int $iLineNo
*/
public function __construct($iLineNo = 0)
{
parent::__construct(',', $iLineNo);
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
return $oOutputFormat->implode(' ', $this->aComponents);
}
}

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<?php
namespace Sabberworm\CSS\Value;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
class Color extends CSSFunction
{
/**
* @param array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string> $aColor
* @param int $iLineNo
*/
public function __construct(array $aColor, $iLineNo = 0)
{
parent::__construct(implode('', array_keys($aColor)), $aColor, ',', $iLineNo);
}
/**
* @return Color|CSSFunction
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
public static function parse(ParserState $oParserState)
{
$aColor = [];
if ($oParserState->comes('#')) {
$oParserState->consume('#');
$sValue = $oParserState->parseIdentifier(false);
if ($oParserState->strlen($sValue) === 3) {
$sValue = $sValue[0] . $sValue[0] . $sValue[1] . $sValue[1] . $sValue[2] . $sValue[2];
} elseif ($oParserState->strlen($sValue) === 4) {
$sValue = $sValue[0] . $sValue[0] . $sValue[1] . $sValue[1] . $sValue[2] . $sValue[2] . $sValue[3]
. $sValue[3];
}
if ($oParserState->strlen($sValue) === 8) {
$aColor = [
'r' => new Size(intval($sValue[0] . $sValue[1], 16), null, true, $oParserState->currentLine()),
'g' => new Size(intval($sValue[2] . $sValue[3], 16), null, true, $oParserState->currentLine()),
'b' => new Size(intval($sValue[4] . $sValue[5], 16), null, true, $oParserState->currentLine()),
'a' => new Size(
round(self::mapRange(intval($sValue[6] . $sValue[7], 16), 0, 255, 0, 1), 2),
null,
true,
$oParserState->currentLine()
),
];
} else {
$aColor = [
'r' => new Size(intval($sValue[0] . $sValue[1], 16), null, true, $oParserState->currentLine()),
'g' => new Size(intval($sValue[2] . $sValue[3], 16), null, true, $oParserState->currentLine()),
'b' => new Size(intval($sValue[4] . $sValue[5], 16), null, true, $oParserState->currentLine()),
];
}
} else {
$sColorMode = $oParserState->parseIdentifier(true);
$oParserState->consumeWhiteSpace();
$oParserState->consume('(');
$bContainsVar = false;
$iLength = $oParserState->strlen($sColorMode);
for ($i = 0; $i < $iLength; ++$i) {
$oParserState->consumeWhiteSpace();
if ($oParserState->comes('var')) {
$aColor[$sColorMode[$i]] = CSSFunction::parseIdentifierOrFunction($oParserState);
$bContainsVar = true;
} else {
$aColor[$sColorMode[$i]] = Size::parse($oParserState, true);
}
if ($bContainsVar && $oParserState->comes(')')) {
// With a var argument the function can have fewer arguments
break;
}
$oParserState->consumeWhiteSpace();
if ($i < ($iLength - 1)) {
$oParserState->consume(',');
}
}
$oParserState->consume(')');
if ($bContainsVar) {
return new CSSFunction($sColorMode, array_values($aColor), ',', $oParserState->currentLine());
}
}
return new Color($aColor, $oParserState->currentLine());
}
/**
* @param float $fVal
* @param float $fFromMin
* @param float $fFromMax
* @param float $fToMin
* @param float $fToMax
*
* @return float
*/
private static function mapRange($fVal, $fFromMin, $fFromMax, $fToMin, $fToMax)
{
$fFromRange = $fFromMax - $fFromMin;
$fToRange = $fToMax - $fToMin;
$fMultiplier = $fToRange / $fFromRange;
$fNewVal = $fVal - $fFromMin;
$fNewVal *= $fMultiplier;
return $fNewVal + $fToMin;
}
/**
* @return array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string>
*/
public function getColor()
{
return $this->aComponents;
}
/**
* @param array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string> $aColor
*
* @return void
*/
public function setColor(array $aColor)
{
$this->setName(implode('', array_keys($aColor)));
$this->aComponents = $aColor;
}
/**
* @return string
*/
public function getColorDescription()
{
return $this->getName();
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
// Shorthand RGB color values
if ($oOutputFormat->getRGBHashNotation() && implode('', array_keys($this->aComponents)) === 'rgb') {
$sResult = sprintf(
'%02x%02x%02x',
$this->aComponents['r']->getSize(),
$this->aComponents['g']->getSize(),
$this->aComponents['b']->getSize()
);
return '#' . (($sResult[0] == $sResult[1]) && ($sResult[2] == $sResult[3]) && ($sResult[4] == $sResult[5])
? "$sResult[0]$sResult[2]$sResult[4]" : $sResult);
}
return parent::render($oOutputFormat);
}
}

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<?php
namespace Sabberworm\CSS\Value;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
class LineName extends ValueList
{
/**
* @param array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string> $aComponents
* @param int $iLineNo
*/
public function __construct(array $aComponents = [], $iLineNo = 0)
{
parent::__construct($aComponents, ' ', $iLineNo);
}
/**
* @return LineName
*
* @throws UnexpectedTokenException
* @throws UnexpectedEOFException
*/
public static function parse(ParserState $oParserState)
{
$oParserState->consume('[');
$oParserState->consumeWhiteSpace();
$aNames = [];
do {
if ($oParserState->getSettings()->bLenientParsing) {
try {
$aNames[] = $oParserState->parseIdentifier();
} catch (UnexpectedTokenException $e) {
if (!$oParserState->comes(']')) {
throw $e;
}
}
} else {
$aNames[] = $oParserState->parseIdentifier();
}
$oParserState->consumeWhiteSpace();
} while (!$oParserState->comes(']'));
$oParserState->consume(']');
return new LineName($aNames, $oParserState->currentLine());
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
return '[' . parent::render(OutputFormat::createCompact()) . ']';
}
}

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lib/sabberworm/php-css-parser/src/Value/PrimitiveValue.php Normal file
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<?php
namespace Sabberworm\CSS\Value;
abstract class PrimitiveValue extends Value
{
/**
* @param int $iLineNo
*/
public function __construct($iLineNo = 0)
{
parent::__construct($iLineNo);
}
}

15
lib/sabberworm/php-css-parser/src/Value/RuleValueList.php Normal file
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<?php
namespace Sabberworm\CSS\Value;
class RuleValueList extends ValueList
{
/**
* @param string $sSeparator
* @param int $iLineNo
*/
public function __construct($sSeparator = ',', $iLineNo = 0)
{
parent::__construct([], $sSeparator, $iLineNo);
}
}

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lib/sabberworm/php-css-parser/src/Value/Size.php Normal file
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<?php
namespace Sabberworm\CSS\Value;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
class Size extends PrimitiveValue
{
/**
* vh/vw/vm(ax)/vmin/rem are absolute insofar as they don’t scale to the immediate parent (only the viewport)
*
* @var array<int, string>
*/
const ABSOLUTE_SIZE_UNITS = ['px', 'cm', 'mm', 'mozmm', 'in', 'pt', 'pc', 'vh', 'vw', 'vmin', 'vmax', 'rem'];
/**
* @var array<int, string>
*/
const RELATIVE_SIZE_UNITS = ['%', 'em', 'ex', 'ch', 'fr'];
/**
* @var array<int, string>
*/
const NON_SIZE_UNITS = ['deg', 'grad', 'rad', 's', 'ms', 'turns', 'Hz', 'kHz'];
/**
* @var array<int, array<string, string>>|null
*/
private static $SIZE_UNITS = null;
/**
* @var float
*/
private $fSize;
/**
* @var string|null
*/
private $sUnit;
/**
* @var bool
*/
private $bIsColorComponent;
/**
* @param float|int|string $fSize
* @param string|null $sUnit
* @param bool $bIsColorComponent
* @param int $iLineNo
*/
public function __construct($fSize, $sUnit = null, $bIsColorComponent = false, $iLineNo = 0)
{
parent::__construct($iLineNo);
$this->fSize = (float)$fSize;
$this->sUnit = $sUnit;
$this->bIsColorComponent = $bIsColorComponent;
}
/**
* @param bool $bIsColorComponent
*
* @return Size
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
public static function parse(ParserState $oParserState, $bIsColorComponent = false)
{
$sSize = '';
if ($oParserState->comes('-')) {
$sSize .= $oParserState->consume('-');
}
while (is_numeric($oParserState->peek()) || $oParserState->comes('.')) {
if ($oParserState->comes('.')) {
$sSize .= $oParserState->consume('.');
} else {
$sSize .= $oParserState->consume(1);
}
}
$sUnit = null;
$aSizeUnits = self::getSizeUnits();
foreach ($aSizeUnits as $iLength => &$aValues) {
$sKey = strtolower($oParserState->peek($iLength));
if (array_key_exists($sKey, $aValues)) {
if (($sUnit = $aValues[$sKey]) !== null) {
$oParserState->consume($iLength);
break;
}
}
}
return new Size((float)$sSize, $sUnit, $bIsColorComponent, $oParserState->currentLine());
}
/**
* @return array<int, array<string, string>>
*/
private static function getSizeUnits()
{
if (!is_array(self::$SIZE_UNITS)) {
self::$SIZE_UNITS = [];
foreach (array_merge(self::ABSOLUTE_SIZE_UNITS, self::RELATIVE_SIZE_UNITS, self::NON_SIZE_UNITS) as $val) {
$iSize = strlen($val);
if (!isset(self::$SIZE_UNITS[$iSize])) {
self::$SIZE_UNITS[$iSize] = [];
}
self::$SIZE_UNITS[$iSize][strtolower($val)] = $val;
}
krsort(self::$SIZE_UNITS, SORT_NUMERIC);
}
return self::$SIZE_UNITS;
}
/**
* @param string $sUnit
*
* @return void
*/
public function setUnit($sUnit)
{
$this->sUnit = $sUnit;
}
/**
* @return string|null
*/
public function getUnit()
{
return $this->sUnit;
}
/**
* @param float|int|string $fSize
*/
public function setSize($fSize)
{
$this->fSize = (float)$fSize;
}
/**
* @return float
*/
public function getSize()
{
return $this->fSize;
}
/**
* @return bool
*/
public function isColorComponent()
{
return $this->bIsColorComponent;
}
/**
* Returns whether the number stored in this Size really represents a size (as in a length of something on screen).
*
* @return false if the unit an angle, a duration, a frequency or the number is a component in a Color object.
*/
public function isSize()
{
if (in_array($this->sUnit, self::NON_SIZE_UNITS, true)) {
return false;
}
return !$this->isColorComponent();
}
/**
* @return bool
*/
public function isRelative()
{
if (in_array($this->sUnit, self::RELATIVE_SIZE_UNITS, true)) {
return true;
}
if ($this->sUnit === null && $this->fSize != 0) {
return true;
}
return false;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
$l = localeconv();
$sPoint = preg_quote($l['decimal_point'], '/');
$sSize = preg_match("/[\d\.]+e[+-]?\d+/i", (string)$this->fSize)
? preg_replace("/$sPoint?0+$/", "", sprintf("%f", $this->fSize)) : $this->fSize;
return preg_replace(["/$sPoint/", "/^(-?)0\./"], ['.', '$1.'], $sSize)
. ($this->sUnit === null ? '' : $this->sUnit);
}
}

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lib/sabberworm/php-css-parser/src/Value/URL.php Normal file
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<?php
namespace Sabberworm\CSS\Value;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\SourceException;
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
class URL extends PrimitiveValue
{
/**
* @var CSSString
*/
private $oURL;
/**
* @param int $iLineNo
*/
public function __construct(CSSString $oURL, $iLineNo = 0)
{
parent::__construct($iLineNo);
$this->oURL = $oURL;
}
/**
* @return URL
*
* @throws SourceException
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
public static function parse(ParserState $oParserState)
{
$bUseUrl = $oParserState->comes('url', true);
if ($bUseUrl) {
$oParserState->consume('url');
$oParserState->consumeWhiteSpace();
$oParserState->consume('(');
}
$oParserState->consumeWhiteSpace();
$oResult = new URL(CSSString::parse($oParserState), $oParserState->currentLine());
if ($bUseUrl) {
$oParserState->consumeWhiteSpace();
$oParserState->consume(')');
}
return $oResult;
}
/**
* @return void
*/
public function setURL(CSSString $oURL)
{
$this->oURL = $oURL;
}
/**
* @return CSSString
*/
public function getURL()
{
return $this->oURL;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
return "url({$this->oURL->render($oOutputFormat)})";
}
}

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lib/sabberworm/php-css-parser/src/Value/Value.php Normal file
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<?php
namespace Sabberworm\CSS\Value;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\SourceException;
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
use Sabberworm\CSS\Renderable;
abstract class Value implements Renderable
{
/**
* @var int
*/
protected $iLineNo;
/**
* @param int $iLineNo
*/
public function __construct($iLineNo = 0)
{
$this->iLineNo = $iLineNo;
}
/**
* @param array<array-key, string> $aListDelimiters
*
* @return RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string
*
* @throws UnexpectedTokenException
* @throws UnexpectedEOFException
*/
public static function parseValue(ParserState $oParserState, array $aListDelimiters = [])
{
/** @var array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string> $aStack */
$aStack = [];
$oParserState->consumeWhiteSpace();
//Build a list of delimiters and parsed values
while (
!($oParserState->comes('}') || $oParserState->comes(';') || $oParserState->comes('!')
|| $oParserState->comes(')')
|| $oParserState->comes('\\'))
) {
if (count($aStack) > 0) {
$bFoundDelimiter = false;
foreach ($aListDelimiters as $sDelimiter) {
if ($oParserState->comes($sDelimiter)) {
array_push($aStack, $oParserState->consume($sDelimiter));
$oParserState->consumeWhiteSpace();
$bFoundDelimiter = true;
break;
}
}
if (!$bFoundDelimiter) {
//Whitespace was the list delimiter
array_push($aStack, ' ');
}
}
array_push($aStack, self::parsePrimitiveValue($oParserState));
$oParserState->consumeWhiteSpace();
}
// Convert the list to list objects
foreach ($aListDelimiters as $sDelimiter) {
if (count($aStack) === 1) {
return $aStack[0];
}
$iStartPosition = null;
while (($iStartPosition = array_search($sDelimiter, $aStack, true)) !== false) {
$iLength = 2; //Number of elements to be joined
for ($i = $iStartPosition + 2; $i < count($aStack); $i += 2, ++$iLength) {
if ($sDelimiter !== $aStack[$i]) {
break;
}
}
$oList = new RuleValueList($sDelimiter, $oParserState->currentLine());
for ($i = $iStartPosition - 1; $i - $iStartPosition + 1 < $iLength * 2; $i += 2) {
$oList->addListComponent($aStack[$i]);
}
array_splice($aStack, $iStartPosition - 1, $iLength * 2 - 1, [$oList]);
}
}
if (!isset($aStack[0])) {
throw new UnexpectedTokenException(
" {$oParserState->peek()} ",
$oParserState->peek(1, -1) . $oParserState->peek(2),
'literal',
$oParserState->currentLine()
);
}
return $aStack[0];
}
/**
* @param bool $bIgnoreCase
*
* @return CSSFunction|string
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
public static function parseIdentifierOrFunction(ParserState $oParserState, $bIgnoreCase = false)
{
$sResult = $oParserState->parseIdentifier($bIgnoreCase);
if ($oParserState->comes('(')) {
$oParserState->consume('(');
$aArguments = Value::parseValue($oParserState, ['=', ' ', ',']);
$sResult = new CSSFunction($sResult, $aArguments, ',', $oParserState->currentLine());
$oParserState->consume(')');
}
return $sResult;
}
/**
* @return CSSFunction|CSSString|LineName|Size|URL|string
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
* @throws SourceException
*/
public static function parsePrimitiveValue(ParserState $oParserState)
{
$oValue = null;
$oParserState->consumeWhiteSpace();
if (
is_numeric($oParserState->peek())
|| ($oParserState->comes('-.')
&& is_numeric($oParserState->peek(1, 2)))
|| (($oParserState->comes('-') || $oParserState->comes('.')) && is_numeric($oParserState->peek(1, 1)))
) {
$oValue = Size::parse($oParserState);
} elseif ($oParserState->comes('#') || $oParserState->comes('rgb', true) || $oParserState->comes('hsl', true)) {
$oValue = Color::parse($oParserState);
} elseif ($oParserState->comes('url', true)) {
$oValue = URL::parse($oParserState);
} elseif (
$oParserState->comes('calc', true) || $oParserState->comes('-webkit-calc', true)
|| $oParserState->comes('-moz-calc', true)
) {
$oValue = CalcFunction::parse($oParserState);
} elseif ($oParserState->comes("'") || $oParserState->comes('"')) {
$oValue = CSSString::parse($oParserState);
} elseif ($oParserState->comes("progid:") && $oParserState->getSettings()->bLenientParsing) {
$oValue = self::parseMicrosoftFilter($oParserState);
} elseif ($oParserState->comes("[")) {
$oValue = LineName::parse($oParserState);
} elseif ($oParserState->comes("U+")) {
$oValue = self::parseUnicodeRangeValue($oParserState);
} else {
$oValue = self::parseIdentifierOrFunction($oParserState);
}
$oParserState->consumeWhiteSpace();
return $oValue;
}
/**
* @return CSSFunction
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
private static function parseMicrosoftFilter(ParserState $oParserState)
{
$sFunction = $oParserState->consumeUntil('(', false, true);
$aArguments = Value::parseValue($oParserState, [',', '=']);
return new CSSFunction($sFunction, $aArguments, ',', $oParserState->currentLine());
}
/**
* @return string
*
* @throws UnexpectedEOFException
* @throws UnexpectedTokenException
*/
private static function parseUnicodeRangeValue(ParserState $oParserState)
{
$iCodepointMaxLength = 6; // Code points outside BMP can use up to six digits
$sRange = "";
$oParserState->consume("U+");
do {
if ($oParserState->comes('-')) {
$iCodepointMaxLength = 13; // Max length is 2 six digit code points + the dash(-) between them
}
$sRange .= $oParserState->consume(1);
} while (strlen($sRange) < $iCodepointMaxLength && preg_match("/[A-Fa-f0-9\?-]/", $oParserState->peek()));
return "U+{$sRange}";
}
/**
* @return int
*/
public function getLineNo()
{
return $this->iLineNo;
}
}

100
lib/sabberworm/php-css-parser/src/Value/ValueList.php Normal file
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@@ -0,0 +1,100 @@
<?php
namespace Sabberworm\CSS\Value;
use Sabberworm\CSS\OutputFormat;
abstract class ValueList extends Value
{
/**
* @var array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string>
*/
protected $aComponents;
/**
* @var string
*/
protected $sSeparator;
/**
* phpcs:ignore Generic.Files.LineLength
* @param array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string>|RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string $aComponents
* @param string $sSeparator
* @param int $iLineNo
*/
public function __construct($aComponents = [], $sSeparator = ',', $iLineNo = 0)
{
parent::__construct($iLineNo);
if (!is_array($aComponents)) {
$aComponents = [$aComponents];
}
$this->aComponents = $aComponents;
$this->sSeparator = $sSeparator;
}
/**
* @param RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string $mComponent
*
* @return void
*/
public function addListComponent($mComponent)
{
$this->aComponents[] = $mComponent;
}
/**
* @return array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string>
*/
public function getListComponents()
{
return $this->aComponents;
}
/**
* @param array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string> $aComponents
*
* @return void
*/
public function setListComponents(array $aComponents)
{
$this->aComponents = $aComponents;
}
/**
* @return string
*/
public function getListSeparator()
{
return $this->sSeparator;
}
/**
* @param string $sSeparator
*
* @return void
*/
public function setListSeparator($sSeparator)
{
$this->sSeparator = $sSeparator;
}
/**
* @return string
*/
public function __toString()
{
return $this->render(new OutputFormat());
}
/**
* @return string
*/
public function render(OutputFormat $oOutputFormat)
{
return $oOutputFormat->implode(
$oOutputFormat->spaceBeforeListArgumentSeparator($this->sSeparator) . $this->sSeparator
. $oOutputFormat->spaceAfterListArgumentSeparator($this->sSeparator),
$this->aComponents
);
}
}