<?php /** * SCSSPHP * * @copyright 2012-2020 Leaf Corcoran * * @license http://opensource.org/licenses/MIT MIT * * @link http://scssphp.github.io/scssphp */ namespace PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\AtRootBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\CallableBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\ContentBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\DirectiveBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\EachBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\ElseBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\ElseifBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\ForBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\IfBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\MediaBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\NestedPropertyBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\WhileBlock; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Exception\ParserException; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Logger\LoggerInterface; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Logger\QuietLogger; use PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Node\Number; /** * Parser * * @author Leaf Corcoran <leafot@gmail.com> * * @internal */ class Parser { const SOURCE_INDEX = -1; const SOURCE_LINE = -2; const SOURCE_COLUMN = -3; /** * @var array<string, int> */ protected static $precedence = ['=' => 0, 'or' => 1, 'and' => 2, '==' => 3, '!=' => 3, '<=' => 4, '>=' => 4, '<' => 4, '>' => 4, '+' => 5, '-' => 5, '*' => 6, '/' => 6, '%' => 6]; /** * @var string */ protected static $commentPattern; /** * @var string */ protected static $operatorPattern; /** * @var string */ protected static $whitePattern; /** * @var Cache|null */ protected $cache; private $sourceName; private $sourceIndex; /** * @var array<int, int> */ private $sourcePositions; /** * The current offset in the buffer * * @var int */ private $count; /** * @var Block|null */ private $env; /** * @var bool */ private $inParens; /** * @var bool */ private $eatWhiteDefault; /** * @var bool */ private $discardComments; private $allowVars; /** * @var string */ private $buffer; private $utf8; /** * @var string|null */ private $encoding; private $patternModifiers; private $commentsSeen; private $cssOnly; /** * @var LoggerInterface */ private $logger; /** * Constructor * * @api * * @param string|null $sourceName * @param int $sourceIndex * @param string|null $encoding * @param Cache|null $cache * @param bool $cssOnly * @param LoggerInterface|null $logger */ public function __construct($sourceName, $sourceIndex = 0, $encoding = 'utf-8', \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Cache $cache = null, $cssOnly = \false, \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Logger\LoggerInterface $logger = null) { $this->sourceName = $sourceName ?: '(stdin)'; $this->sourceIndex = $sourceIndex; $this->utf8 = !$encoding || \strtolower($encoding) === 'utf-8'; $this->patternModifiers = $this->utf8 ? 'Aisu' : 'Ais'; $this->commentsSeen = []; $this->allowVars = \true; $this->cssOnly = $cssOnly; $this->logger = $logger ?: new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Logger\QuietLogger(); if (empty(static::$operatorPattern)) { static::$operatorPattern = '([*\\/%+-]|[!=]\\=|\\>\\=?|\\<\\=?|and|or)'; $commentSingle = '\\/\\/'; $commentMultiLeft = '\\/\\*'; $commentMultiRight = '\\*\\/'; static::$commentPattern = $commentMultiLeft . '.*?' . $commentMultiRight; static::$whitePattern = $this->utf8 ? '/' . $commentSingle . '[^\\n]*\\s*|(' . static::$commentPattern . ')\\s*|\\s+/AisuS' : '/' . $commentSingle . '[^\\n]*\\s*|(' . static::$commentPattern . ')\\s*|\\s+/AisS'; } $this->cache = $cache; } /** * Get source file name * * @api * * @return string */ public function getSourceName() { return $this->sourceName; } /** * Throw parser error * * @api * * @param string $msg * * @phpstan-return never-return * * @throws ParserException * * @deprecated use "parseError" and throw the exception in the caller instead. */ public function throwParseError($msg = 'parse error') { @\trigger_error('The method "throwParseError" is deprecated. Use "parseError" and throw the exception in the caller instead', \E_USER_DEPRECATED); throw $this->parseError($msg); } /** * Creates a parser error * * @api * * @param string $msg * * @return ParserException */ public function parseError($msg = 'parse error') { list($line, $column) = $this->getSourcePosition($this->count); $loc = empty($this->sourceName) ? "line: {$line}, column: {$column}" : "{$this->sourceName} on line {$line}, at column {$column}"; if ($this->peek('(.*?)(\\n|$)', $m, $this->count)) { $this->restoreEncoding(); $e = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Exception\ParserException("{$msg}: failed at `{$m[1]}` {$loc}"); $e->setSourcePosition([$this->sourceName, $line, $column]); return $e; } $this->restoreEncoding(); $e = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Exception\ParserException("{$msg}: {$loc}"); $e->setSourcePosition([$this->sourceName, $line, $column]); return $e; } /** * Parser buffer * * @api * * @param string $buffer * * @return Block */ public function parse($buffer) { if ($this->cache) { $cacheKey = $this->sourceName . ':' . \md5($buffer); $parseOptions = ['utf8' => $this->utf8]; $v = $this->cache->getCache('parse', $cacheKey, $parseOptions); if (!\is_null($v)) { return $v; } } // strip BOM (byte order marker) if (\substr($buffer, 0, 3) === "") { $buffer = \substr($buffer, 3); } $this->buffer = \rtrim($buffer, "\x00..\x1f"); $this->count = 0; $this->env = null; $this->inParens = \false; $this->eatWhiteDefault = \true; $this->saveEncoding(); $this->extractLineNumbers($buffer); $this->pushBlock(null); // root block $this->whitespace(); $this->pushBlock(null); $this->popBlock(); while ($this->parseChunk()) { } if ($this->count !== \strlen($this->buffer)) { throw $this->parseError(); } if (!empty($this->env->parent)) { throw $this->parseError('unclosed block'); } $this->restoreEncoding(); \assert($this->env !== null); if ($this->cache) { $this->cache->setCache('parse', $cacheKey, $this->env, $parseOptions); } return $this->env; } /** * Parse a value or value list * * @api * * @param string $buffer * @param string|array $out * * @return bool */ public function parseValue($buffer, &$out) { $this->count = 0; $this->env = null; $this->inParens = \false; $this->eatWhiteDefault = \true; $this->buffer = (string) $buffer; $this->saveEncoding(); $this->extractLineNumbers($this->buffer); $list = $this->valueList($out); $this->restoreEncoding(); return $list; } /** * Parse a selector or selector list * * @api * * @param string $buffer * @param string|array $out * @param bool $shouldValidate * * @return bool */ public function parseSelector($buffer, &$out, $shouldValidate = \true) { $this->count = 0; $this->env = null; $this->inParens = \false; $this->eatWhiteDefault = \true; $this->buffer = (string) $buffer; $this->saveEncoding(); $this->extractLineNumbers($this->buffer); // discard space/comments at the start $this->discardComments = \true; $this->whitespace(); $this->discardComments = \false; $selector = $this->selectors($out); $this->restoreEncoding(); if ($shouldValidate && $this->count !== \strlen($buffer)) { throw $this->parseError("`" . \substr($buffer, $this->count) . "` is not a valid Selector in `{$buffer}`"); } return $selector; } /** * Parse a media Query * * @api * * @param string $buffer * @param array $out * * @return bool */ public function parseMediaQueryList($buffer, &$out) { $this->count = 0; $this->env = null; $this->inParens = \false; $this->eatWhiteDefault = \true; $this->buffer = (string) $buffer; $this->saveEncoding(); $this->extractLineNumbers($this->buffer); $isMediaQuery = $this->mediaQueryList($out); $this->restoreEncoding(); return $isMediaQuery; } /** * Parse a single chunk off the head of the buffer and append it to the * current parse environment. * * Returns false when the buffer is empty, or when there is an error. * * This function is called repeatedly until the entire document is * parsed. * * This parser is most similar to a recursive descent parser. Single * functions represent discrete grammatical rules for the language, and * they are able to capture the text that represents those rules. * * Consider the function Compiler::keyword(). (All parse functions are * structured the same.) * * The function takes a single reference argument. When calling the * function it will attempt to match a keyword on the head of the buffer. * If it is successful, it will place the keyword in the referenced * argument, advance the position in the buffer, and return true. If it * fails then it won't advance the buffer and it will return false. * * All of these parse functions are powered by Compiler::match(), which behaves * the same way, but takes a literal regular expression. Sometimes it is * more convenient to use match instead of creating a new function. * * Because of the format of the functions, to parse an entire string of * grammatical rules, you can chain them together using &&. * * But, if some of the rules in the chain succeed before one fails, then * the buffer position will be left at an invalid state. In order to * avoid this, Compiler::seek() is used to remember and set buffer positions. * * Before parsing a chain, use $s = $this->count to remember the current * position into $s. Then if a chain fails, use $this->seek($s) to * go back where we started. * * @return bool */ protected function parseChunk() { $s = $this->count; // the directives if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] === '@') { if ($this->literal('@at-root', 8) && ($this->selectors($selector) || \true) && ($this->map($with) || \true) && ($this->matchChar('(') && $this->interpolation($with) && $this->matchChar(')') || \true) && $this->matchChar('{', \false)) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $atRoot = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\AtRootBlock(); $this->registerPushedBlock($atRoot, $s); $atRoot->selector = $selector; $atRoot->with = $with; return \true; } $this->seek($s); if ($this->literal('@media', 6) && $this->mediaQueryList($mediaQueryList) && $this->matchChar('{', \false)) { $media = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\MediaBlock(); $this->registerPushedBlock($media, $s); $media->queryList = $mediaQueryList[2]; return \true; } $this->seek($s); if ($this->literal('@mixin', 6) && $this->keyword($mixinName) && ($this->argumentDef($args) || \true) && $this->matchChar('{', \false)) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $mixin = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\CallableBlock(\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_MIXIN); $this->registerPushedBlock($mixin, $s); $mixin->name = $mixinName; $mixin->args = $args; return \true; } $this->seek($s); if ($this->literal('@include', 8) && $this->keyword($mixinName) && ($this->matchChar('(') && ($this->argValues($argValues) || \true) && $this->matchChar(')') || \true) && $this->end() || $this->literal('using', 5) && $this->argumentDef($argUsing) && ($this->end() || $this->matchChar('{') && ($hasBlock = \true)) || $this->matchChar('{') && ($hasBlock = \true)) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $child = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_INCLUDE, $mixinName, isset($argValues) ? $argValues : null, null, isset($argUsing) ? $argUsing : null]; if (!empty($hasBlock)) { $include = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\ContentBlock(); $this->registerPushedBlock($include, $s); $include->child = $child; } else { $this->append($child, $s); } return \true; } $this->seek($s); if ($this->literal('@scssphp-import-once', 20) && $this->valueList($importPath) && $this->end()) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); list($line, $column) = $this->getSourcePosition($s); $file = $this->sourceName; $this->logger->warn("The \"@scssphp-import-once\" directive is deprecated and will be removed in ScssPhp 2.0, in \"{$file}\", line {$line}, column {$column}.", \true); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_SCSSPHP_IMPORT_ONCE, $importPath], $s); return \true; } $this->seek($s); if ($this->literal('@import', 7) && $this->valueList($importPath) && $importPath[0] !== \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_FUNCTION_CALL && $this->end()) { if ($this->cssOnly) { $this->assertPlainCssValid([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_IMPORT, $importPath], $s); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_COMMENT, \rtrim(\substr($this->buffer, $s, $this->count - $s))]); return \true; } $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_IMPORT, $importPath], $s); return \true; } $this->seek($s); if ($this->literal('@import', 7) && $this->url($importPath) && $this->end()) { if ($this->cssOnly) { $this->assertPlainCssValid([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_IMPORT, $importPath], $s); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_COMMENT, \rtrim(\substr($this->buffer, $s, $this->count - $s))]); return \true; } $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_IMPORT, $importPath], $s); return \true; } $this->seek($s); if ($this->literal('@extend', 7) && $this->selectors($selectors) && $this->end()) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); // check for '!flag' $optional = $this->stripOptionalFlag($selectors); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_EXTEND, $selectors, $optional], $s); return \true; } $this->seek($s); if ($this->literal('@function', 9) && $this->keyword($fnName) && $this->argumentDef($args) && $this->matchChar('{', \false)) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $func = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\CallableBlock(\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_FUNCTION); $this->registerPushedBlock($func, $s); $func->name = $fnName; $func->args = $args; return \true; } $this->seek($s); if ($this->literal('@return', 7) && ($this->valueList($retVal) || \true) && $this->end()) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_RETURN, isset($retVal) ? $retVal : [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_NULL]], $s); return \true; } $this->seek($s); if ($this->literal('@each', 5) && $this->genericList($varNames, 'variable', ',', \false) && $this->literal('in', 2) && $this->valueList($list) && $this->matchChar('{', \false)) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $each = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\EachBlock(); $this->registerPushedBlock($each, $s); foreach ($varNames[2] as $varName) { $each->vars[] = $varName[1]; } $each->list = $list; return \true; } $this->seek($s); if ($this->literal('@while', 6) && $this->expression($cond) && $this->matchChar('{', \false)) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); while ($cond[0] === \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST && !empty($cond['enclosing']) && $cond['enclosing'] === 'parent' && \count($cond[2]) == 1) { $cond = \reset($cond[2]); } $while = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\WhileBlock(); $this->registerPushedBlock($while, $s); $while->cond = $cond; return \true; } $this->seek($s); if ($this->literal('@for', 4) && $this->variable($varName) && $this->literal('from', 4) && $this->expression($start) && ($this->literal('through', 7) || ($forUntil = \true && $this->literal('to', 2))) && $this->expression($end) && $this->matchChar('{', \false)) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $for = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\ForBlock(); $this->registerPushedBlock($for, $s); $for->var = $varName[1]; $for->start = $start; $for->end = $end; $for->until = isset($forUntil); return \true; } $this->seek($s); if ($this->literal('@if', 3) && $this->functionCallArgumentsList($cond, \false, '{', \false)) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $if = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\IfBlock(); $this->registerPushedBlock($if, $s); while ($cond[0] === \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST && !empty($cond['enclosing']) && $cond['enclosing'] === 'parent' && \count($cond[2]) == 1) { $cond = \reset($cond[2]); } $if->cond = $cond; $if->cases = []; return \true; } $this->seek($s); if ($this->literal('@debug', 6) && $this->functionCallArgumentsList($value, \false)) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_DEBUG, $value], $s); return \true; } $this->seek($s); if ($this->literal('@warn', 5) && $this->functionCallArgumentsList($value, \false)) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_WARN, $value], $s); return \true; } $this->seek($s); if ($this->literal('@error', 6) && $this->functionCallArgumentsList($value, \false)) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_ERROR, $value], $s); return \true; } $this->seek($s); if ($this->literal('@content', 8) && ($this->end() || $this->matchChar('(') && $this->argValues($argContent) && $this->matchChar(')') && $this->end())) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_MIXIN_CONTENT, isset($argContent) ? $argContent : null], $s); return \true; } $this->seek($s); $last = $this->last(); if (isset($last) && $last[0] === \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_IF) { list(, $if) = $last; \assert($if instanceof \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\IfBlock); if ($this->literal('@else', 5)) { if ($this->matchChar('{', \false)) { $else = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\ElseBlock(); } elseif ($this->literal('if', 2) && $this->functionCallArgumentsList($cond, \false, '{', \false)) { $else = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\ElseifBlock(); $else->cond = $cond; } if (isset($else)) { $this->registerPushedBlock($else, $s); $if->cases[] = $else; return \true; } } $this->seek($s); } // only retain the first @charset directive encountered if ($this->literal('@charset', 8) && $this->valueList($charset) && $this->end()) { return \true; } $this->seek($s); if ($this->literal('@supports', 9) && ($t1 = $this->supportsQuery($supportQuery)) && ($t2 = $this->matchChar('{', \false))) { $directive = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\DirectiveBlock(); $this->registerPushedBlock($directive, $s); $directive->name = 'supports'; $directive->value = $supportQuery; return \true; } $this->seek($s); // doesn't match built in directive, do generic one if ($this->matchChar('@', \false) && $this->mixedKeyword($dirName) && $this->directiveValue($dirValue, '{')) { if (\count($dirName) === 1 && \is_string(\reset($dirName))) { $dirName = \reset($dirName); } else { $dirName = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', $dirName]; } if ($dirName === 'media') { $directive = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\MediaBlock(); } else { $directive = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\DirectiveBlock(); $directive->name = $dirName; } $this->registerPushedBlock($directive, $s); if (isset($dirValue)) { !$this->cssOnly || ($dirValue = $this->assertPlainCssValid($dirValue)); $directive->value = $dirValue; } return \true; } $this->seek($s); // maybe it's a generic blockless directive if ($this->matchChar('@', \false) && $this->mixedKeyword($dirName) && !$this->isKnownGenericDirective($dirName) && ($this->end(\false) || $this->directiveValue($dirValue, '') && $this->end(\false))) { if (\count($dirName) === 1 && \is_string(\reset($dirName))) { $dirName = \reset($dirName); } else { $dirName = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', $dirName]; } if (!empty($this->env->parent) && $this->env->type && !\in_array($this->env->type, [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_DIRECTIVE, \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_MEDIA])) { $plain = \trim(\substr($this->buffer, $s, $this->count - $s)); throw $this->parseError("Unknown directive `{$plain}` not allowed in `" . $this->env->type . "` block"); } // blockless directives with a blank line after keeps their blank lines after // sass-spec compliance purpose $s = $this->count; $hasBlankLine = \false; if ($this->match('\\s*?\\n\\s*\\n', $out, \false)) { $hasBlankLine = \true; $this->seek($s); } $isNotRoot = !empty($this->env->parent); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_DIRECTIVE, [$dirName, $dirValue, $hasBlankLine, $isNotRoot]], $s); $this->whitespace(); return \true; } $this->seek($s); return \false; } $inCssSelector = null; if ($this->cssOnly) { $inCssSelector = !empty($this->env->parent) && !\in_array($this->env->type, [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_DIRECTIVE, \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_MEDIA]); } // custom properties : right part is static if ($this->customProperty($name) && $this->matchChar(':', \false)) { $start = $this->count; // but can be complex and finish with ; or } foreach ([';', '}'] as $ending) { if ($this->openString($ending, $stringValue, '(', ')', \false) && $this->end()) { $end = $this->count; $value = $stringValue; // check if we have only a partial value due to nested [] or { } to take in account $nestingPairs = [['[', ']'], ['{', '}']]; foreach ($nestingPairs as $nestingPair) { $p = \strpos($this->buffer, $nestingPair[0], $start); if ($p && $p < $end) { $this->seek($start); if ($this->openString($ending, $stringValue, $nestingPair[0], $nestingPair[1], \false) && $this->end() && $this->count > $end) { $end = $this->count; $value = $stringValue; } } } $this->seek($end); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_CUSTOM_PROPERTY, $name, $value], $s); return \true; } } // TODO: output an error here if nothing found according to sass spec } $this->seek($s); // property shortcut // captures most properties before having to parse a selector if ($this->keyword($name, \false) && $this->literal(': ', 2) && $this->valueList($value) && $this->end()) { $name = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', [$name]]; $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_ASSIGN, $name, $value], $s); return \true; } $this->seek($s); // variable assigns if ($this->variable($name) && $this->matchChar(':') && $this->valueList($value) && $this->end()) { !$this->cssOnly || $this->assertPlainCssValid(\false, $s); // check for '!flag' $assignmentFlags = $this->stripAssignmentFlags($value); $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_ASSIGN, $name, $value, $assignmentFlags], $s); return \true; } $this->seek($s); // opening css block if ($this->selectors($selectors) && $this->matchChar('{', \false)) { !$this->cssOnly || !$inCssSelector || $this->assertPlainCssValid(\false); $this->pushBlock($selectors, $s); if ($this->eatWhiteDefault) { $this->whitespace(); $this->append(null); // collect comments at the beginning if needed } return \true; } $this->seek($s); // property assign, or nested assign if ($this->propertyName($name) && $this->matchChar(':')) { $foundSomething = \false; if ($this->valueList($value)) { if (empty($this->env->parent)) { throw $this->parseError('expected "{"'); } $this->append([\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_ASSIGN, $name, $value], $s); $foundSomething = \true; } if ($this->matchChar('{', \false)) { !$this->cssOnly || $this->assertPlainCssValid(\false); $propBlock = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\NestedPropertyBlock(); $this->registerPushedBlock($propBlock, $s); $propBlock->prefix = $name; $propBlock->hasValue = $foundSomething; $foundSomething = \true; } elseif ($foundSomething) { $foundSomething = $this->end(); } if ($foundSomething) { return \true; } } $this->seek($s); // closing a block if ($this->matchChar('}', \false)) { $block = $this->popBlock(); if (!isset($block->type) || $block->type !== \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_IF) { \assert($this->env !== null); if ($this->env->parent) { $this->append(null); // collect comments before next statement if needed } } if ($block instanceof \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\ContentBlock) { $include = $block->child; \assert(\is_array($include)); unset($block->child); $include[3] = $block; $this->append($include, $s); } elseif (!$block instanceof \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\ElseBlock && !$block instanceof \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block\ElseifBlock) { $type = isset($block->type) ? $block->type : \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_BLOCK; $this->append([$type, $block], $s); } // collect comments just after the block closing if needed if ($this->eatWhiteDefault) { $this->whitespace(); \assert($this->env !== null); if ($this->env->comments) { $this->append(null); } } return \true; } // extra stuff if ($this->matchChar(';')) { return \true; } return \false; } /** * Push block onto parse tree * * @param array|null $selectors * @param int $pos * * @return Block */ protected function pushBlock($selectors, $pos = 0) { $b = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block(); $b->selectors = $selectors; $this->registerPushedBlock($b, $pos); return $b; } /** * @param Block $b * @param int $pos * * @return void */ private function registerPushedBlock(\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Block $b, $pos) { list($line, $column) = $this->getSourcePosition($pos); $b->sourceName = $this->sourceName; $b->sourceLine = $line; $b->sourceColumn = $column; $b->sourceIndex = $this->sourceIndex; $b->comments = []; $b->parent = $this->env; if (!$this->env) { $b->children = []; } elseif (empty($this->env->children)) { $this->env->children = $this->env->comments; $b->children = []; $this->env->comments = []; } else { $b->children = $this->env->comments; $this->env->comments = []; } $this->env = $b; // collect comments at the beginning of a block if needed if ($this->eatWhiteDefault) { $this->whitespace(); \assert($this->env !== null); if ($this->env->comments) { $this->append(null); } } } /** * Push special (named) block onto parse tree * * @deprecated * * @param string $type * @param int $pos * * @return Block */ protected function pushSpecialBlock($type, $pos) { $block = $this->pushBlock(null, $pos); $block->type = $type; return $block; } /** * Pop scope and return last block * * @return Block * * @throws \Exception */ protected function popBlock() { \assert($this->env !== null); // collect comments ending just before of a block closing if ($this->env->comments) { $this->append(null); } // pop the block $block = $this->env; if (empty($block->parent)) { throw $this->parseError('unexpected }'); } if ($block->type == \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_AT_ROOT) { // keeps the parent in case of self selector & $block->selfParent = $block->parent; } $this->env = $block->parent; unset($block->parent); return $block; } /** * Peek input stream * * @param string $regex * @param array $out * @param int $from * * @return int */ protected function peek($regex, &$out, $from = null) { if (!isset($from)) { $from = $this->count; } $r = '/' . $regex . '/' . $this->patternModifiers; $result = \preg_match($r, $this->buffer, $out, 0, $from); return $result; } /** * Seek to position in input stream (or return current position in input stream) * * @param int $where * * @return void */ protected function seek($where) { $this->count = $where; } /** * Assert a parsed part is plain CSS Valid * * @param array|false $parsed * @param int $startPos * * @return array * * @throws ParserException */ protected function assertPlainCssValid($parsed, $startPos = null) { $type = ''; if ($parsed) { $type = $parsed[0]; $parsed = $this->isPlainCssValidElement($parsed); } if (!$parsed) { if (!\is_null($startPos)) { $plain = \rtrim(\substr($this->buffer, $startPos, $this->count - $startPos)); $message = "Error : `{$plain}` isn't allowed in plain CSS"; } else { $message = 'Error: SCSS syntax not allowed in CSS file'; } if ($type) { $message .= " ({$type})"; } throw $this->parseError($message); } return $parsed; } /** * Check a parsed element is plain CSS Valid * * @param array $parsed * @param bool $allowExpression * * @return array|false */ protected function isPlainCssValidElement($parsed, $allowExpression = \false) { // keep string as is if (\is_string($parsed)) { return $parsed; } if (\in_array($parsed[0], [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_FUNCTION, \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_FUNCTION_CALL]) && !\in_array($parsed[1], ['alpha', 'attr', 'calc', 'cubic-bezier', 'env', 'grayscale', 'hsl', 'hsla', 'hwb', 'invert', 'linear-gradient', 'min', 'max', 'radial-gradient', 'repeating-linear-gradient', 'repeating-radial-gradient', 'rgb', 'rgba', 'rotate', 'saturate', 'var']) && \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Compiler::isNativeFunction($parsed[1])) { return \false; } switch ($parsed[0]) { case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_BLOCK: case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD: case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_NULL: case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_NUMBER: case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_MEDIA: return $parsed; case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_COMMENT: if (isset($parsed[2])) { return \false; } return $parsed; case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_DIRECTIVE: if (\is_array($parsed[1])) { $parsed[1][1] = $this->isPlainCssValidElement($parsed[1][1]); if (!$parsed[1][1]) { return \false; } } return $parsed; case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_IMPORT: if ($parsed[1][0] === \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST) { return \false; } $parsed[1] = $this->isPlainCssValidElement($parsed[1]); if ($parsed[1] === \false) { return \false; } return $parsed; case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING: foreach ($parsed[2] as $k => $substr) { if (\is_array($substr)) { $parsed[2][$k] = $this->isPlainCssValidElement($substr); if (!$parsed[2][$k]) { return \false; } } } return $parsed; case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST: if (!empty($parsed['enclosing'])) { return \false; } foreach ($parsed[2] as $k => $listElement) { $parsed[2][$k] = $this->isPlainCssValidElement($listElement); if (!$parsed[2][$k]) { return \false; } } return $parsed; case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_ASSIGN: foreach ([1, 2, 3] as $k) { if (!empty($parsed[$k])) { $parsed[$k] = $this->isPlainCssValidElement($parsed[$k]); if (!$parsed[$k]) { return \false; } } } return $parsed; case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_EXPRESSION: list(, $op, $lhs, $rhs, $inParens, $whiteBefore, $whiteAfter) = $parsed; if (!$allowExpression && !\in_array($op, ['and', 'or', '/'])) { return \false; } $lhs = $this->isPlainCssValidElement($lhs, \true); if (!$lhs) { return \false; } $rhs = $this->isPlainCssValidElement($rhs, \true); if (!$rhs) { return \false; } return [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', [$this->inParens ? '(' : '', $lhs, ($whiteBefore ? ' ' : '') . $op . ($whiteAfter ? ' ' : ''), $rhs, $this->inParens ? ')' : '']]; case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_CUSTOM_PROPERTY: case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_UNARY: $parsed[2] = $this->isPlainCssValidElement($parsed[2]); if (!$parsed[2]) { return \false; } return $parsed; case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_FUNCTION: $argsList = $parsed[2]; foreach ($argsList[2] as $argElement) { if (!$this->isPlainCssValidElement($argElement)) { return \false; } } return $parsed; case \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_FUNCTION_CALL: $parsed[0] = \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_FUNCTION; $argsList = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, ',', []]; foreach ($parsed[2] as $arg) { if ($arg[0] || !empty($arg[2])) { // no named arguments possible in a css function call // nor ... argument return \false; } $arg = $this->isPlainCssValidElement($arg[1], $parsed[1] === 'calc'); if (!$arg) { return \false; } $argsList[2][] = $arg; } $parsed[2] = $argsList; return $parsed; } return \false; } /** * Match string looking for either ending delim, escape, or string interpolation * * {@internal This is a workaround for preg_match's 250K string match limit. }} * * @param array $m Matches (passed by reference) * @param string $delim Delimiter * * @return bool True if match; false otherwise * * @phpstan-impure */ protected function matchString(&$m, $delim) { $token = null; $end = \strlen($this->buffer); // look for either ending delim, escape, or string interpolation foreach (['#{', '\\', "\r", $delim] as $lookahead) { $pos = \strpos($this->buffer, $lookahead, $this->count); if ($pos !== \false && $pos < $end) { $end = $pos; $token = $lookahead; } } if (!isset($token)) { return \false; } $match = \substr($this->buffer, $this->count, $end - $this->count); $m = [$match . $token, $match, $token]; $this->count = $end + \strlen($token); return \true; } /** * Try to match something on head of buffer * * @param string $regex * @param array $out * @param bool $eatWhitespace * * @return bool * * @phpstan-impure */ protected function match($regex, &$out, $eatWhitespace = null) { $r = '/' . $regex . '/' . $this->patternModifiers; if (!\preg_match($r, $this->buffer, $out, 0, $this->count)) { return \false; } $this->count += \strlen($out[0]); if (!isset($eatWhitespace)) { $eatWhitespace = $this->eatWhiteDefault; } if ($eatWhitespace) { $this->whitespace(); } return \true; } /** * Match a single string * * @param string $char * @param bool $eatWhitespace * * @return bool * * @phpstan-impure */ protected function matchChar($char, $eatWhitespace = null) { if (!isset($this->buffer[$this->count]) || $this->buffer[$this->count] !== $char) { return \false; } $this->count++; if (!isset($eatWhitespace)) { $eatWhitespace = $this->eatWhiteDefault; } if ($eatWhitespace) { $this->whitespace(); } return \true; } /** * Match literal string * * @param string $what * @param int $len * @param bool $eatWhitespace * * @return bool * * @phpstan-impure */ protected function literal($what, $len, $eatWhitespace = null) { if (\strcasecmp(\substr($this->buffer, $this->count, $len), $what) !== 0) { return \false; } $this->count += $len; if (!isset($eatWhitespace)) { $eatWhitespace = $this->eatWhiteDefault; } if ($eatWhitespace) { $this->whitespace(); } return \true; } /** * Match some whitespace * * @return bool * * @phpstan-impure */ protected function whitespace() { $gotWhite = \false; while (\preg_match(static::$whitePattern, $this->buffer, $m, 0, $this->count)) { if (isset($m[1]) && empty($this->commentsSeen[$this->count])) { // comment that are kept in the output CSS $comment = []; $startCommentCount = $this->count; $endCommentCount = $this->count + \strlen($m[1]); // find interpolations in comment $p = \strpos($this->buffer, '#{', $this->count); while ($p !== \false && $p < $endCommentCount) { $c = \substr($this->buffer, $this->count, $p - $this->count); $comment[] = $c; $this->count = $p; $out = null; if ($this->interpolation($out)) { // keep right spaces in the following string part if ($out[3]) { while ($this->buffer[$this->count - 1] !== '}') { $this->count--; } $out[3] = ''; } $comment[] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_COMMENT, \substr($this->buffer, $p, $this->count - $p), $out]; } else { list($line, $column) = $this->getSourcePosition($this->count); $file = $this->sourceName; if (!$this->discardComments) { $this->logger->warn("Unterminated interpolations in multiline comments are deprecated and will be removed in ScssPhp 2.0, in \"{$file}\", line {$line}, column {$column}.", \true); } $comment[] = \substr($this->buffer, $this->count, 2); $this->count += 2; } $p = \strpos($this->buffer, '#{', $this->count); } // remaining part $c = \substr($this->buffer, $this->count, $endCommentCount - $this->count); if (!$comment) { // single part static comment $commentStatement = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_COMMENT, $c]; } else { $comment[] = $c; $staticComment = \substr($this->buffer, $startCommentCount, $endCommentCount - $startCommentCount); $commentStatement = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_COMMENT, $staticComment, [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', $comment]]; } list($line, $column) = $this->getSourcePosition($startCommentCount); $commentStatement[self::SOURCE_LINE] = $line; $commentStatement[self::SOURCE_COLUMN] = $column; $commentStatement[self::SOURCE_INDEX] = $this->sourceIndex; $this->appendComment($commentStatement); $this->commentsSeen[$startCommentCount] = \true; $this->count = $endCommentCount; } else { // comment that are ignored and not kept in the output css $this->count += \strlen($m[0]); // silent comments are not allowed in plain CSS files !$this->cssOnly || !\strlen(\trim($m[0])) || $this->assertPlainCssValid(\false, $this->count - \strlen($m[0])); } $gotWhite = \true; } return $gotWhite; } /** * Append comment to current block * * @param array $comment * * @return void */ protected function appendComment($comment) { \assert($this->env !== null); if (!$this->discardComments) { $this->env->comments[] = $comment; } } /** * Append statement to current block * * @param array|null $statement * @param int $pos * * @return void */ protected function append($statement, $pos = null) { \assert($this->env !== null); if (!\is_null($statement)) { !$this->cssOnly || ($statement = $this->assertPlainCssValid($statement, $pos)); if (!\is_null($pos)) { list($line, $column) = $this->getSourcePosition($pos); $statement[static::SOURCE_LINE] = $line; $statement[static::SOURCE_COLUMN] = $column; $statement[static::SOURCE_INDEX] = $this->sourceIndex; } $this->env->children[] = $statement; } $comments = $this->env->comments; if ($comments) { $this->env->children = \array_merge($this->env->children, $comments); $this->env->comments = []; } } /** * Returns last child was appended * * @return array|null */ protected function last() { \assert($this->env !== null); $i = \count($this->env->children) - 1; if (isset($this->env->children[$i])) { return $this->env->children[$i]; } return null; } /** * Parse media query list * * @param array $out * * @return bool */ protected function mediaQueryList(&$out) { return $this->genericList($out, 'mediaQuery', ',', \false); } /** * Parse media query * * @param array $out * * @return bool */ protected function mediaQuery(&$out) { $expressions = null; $parts = []; if (($this->literal('only', 4) && ($only = \true) || $this->literal('not', 3) && ($not = \true) || \true) && $this->mixedKeyword($mediaType)) { $prop = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_MEDIA_TYPE]; if (isset($only)) { $prop[] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, 'only']; } if (isset($not)) { $prop[] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, 'not']; } $media = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, '', []]; foreach ((array) $mediaType as $type) { if (\is_array($type)) { $media[2][] = $type; } else { $media[2][] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, $type]; } } $prop[] = $media; $parts[] = $prop; } if (empty($parts) || $this->literal('and', 3)) { $this->genericList($expressions, 'mediaExpression', 'and', \false); if (\is_array($expressions)) { $parts = \array_merge($parts, $expressions[2]); } } $out = $parts; return \true; } /** * Parse supports query * * @param array $out * * @return bool */ protected function supportsQuery(&$out) { $expressions = null; $parts = []; $s = $this->count; $not = \false; if (($this->literal('not', 3) && ($not = \true) || \true) && $this->matchChar('(') && $this->expression($property) && $this->literal(': ', 2) && $this->valueList($value) && $this->matchChar(')')) { $support = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', [[\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, ($not ? 'not ' : '') . '(']]]; $support[2][] = $property; $support[2][] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, ': ']; $support[2][] = $value; $support[2][] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, ')']; $parts[] = $support; $s = $this->count; } else { $this->seek($s); } if ($this->matchChar('(') && $this->supportsQuery($subQuery) && $this->matchChar(')')) { $parts[] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', [[\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, '('], $subQuery, [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, ')']]]; $s = $this->count; } else { $this->seek($s); } if ($this->literal('not', 3) && $this->supportsQuery($subQuery)) { $parts[] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', [[\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, 'not '], $subQuery]]; $s = $this->count; } else { $this->seek($s); } if ($this->literal('selector(', 9) && $this->selector($selector) && $this->matchChar(')')) { $support = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', [[\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, 'selector(']]]; $selectorList = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, '', []]; foreach ($selector as $sc) { $compound = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', []]; foreach ($sc as $scp) { if (\is_array($scp)) { $compound[2][] = $scp; } else { $compound[2][] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, $scp]; } } $selectorList[2][] = $compound; } $support[2][] = $selectorList; $support[2][] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, ')']; $parts[] = $support; $s = $this->count; } else { $this->seek($s); } if ($this->variable($var) or $this->interpolation($var)) { $parts[] = $var; $s = $this->count; } else { $this->seek($s); } if ($this->literal('and', 3) && $this->genericList($expressions, 'supportsQuery', ' and', \false)) { \array_unshift($expressions[2], [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', $parts]); $parts = [$expressions]; $s = $this->count; } else { $this->seek($s); } if ($this->literal('or', 2) && $this->genericList($expressions, 'supportsQuery', ' or', \false)) { \array_unshift($expressions[2], [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', $parts]); $parts = [$expressions]; $s = $this->count; } else { $this->seek($s); } if (\count($parts)) { if ($this->eatWhiteDefault) { $this->whitespace(); } $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', $parts]; return \true; } return \false; } /** * Parse media expression * * @param array $out * * @return bool */ protected function mediaExpression(&$out) { $s = $this->count; $value = null; if ($this->matchChar('(') && $this->expression($feature) && ($this->matchChar(':') && $this->expression($value) || \true) && $this->matchChar(')')) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_MEDIA_EXPRESSION, $feature]; if ($value) { $out[] = $value; } return \true; } $this->seek($s); return \false; } /** * Parse argument values * * @param array $out * * @return bool */ protected function argValues(&$out) { $discardComments = $this->discardComments; $this->discardComments = \true; if ($this->genericList($list, 'argValue', ',', \false)) { $out = $list[2]; $this->discardComments = $discardComments; return \true; } $this->discardComments = $discardComments; return \false; } /** * Parse argument value * * @param array $out * * @return bool */ protected function argValue(&$out) { $s = $this->count; $keyword = null; if (!$this->variable($keyword) || !$this->matchChar(':')) { $this->seek($s); $keyword = null; } if ($this->genericList($value, 'expression', '', \true)) { $out = [$keyword, $value, \false]; $s = $this->count; if ($this->literal('...', 3)) { $out[2] = \true; } else { $this->seek($s); } return \true; } return \false; } /** * Check if a generic directive is known to be able to allow almost any syntax or not * @param mixed $directiveName * @return bool */ protected function isKnownGenericDirective($directiveName) { if (\is_array($directiveName) && \is_string(\reset($directiveName))) { $directiveName = \reset($directiveName); } if (!\is_string($directiveName)) { return \false; } if (\in_array($directiveName, [ 'at-root', 'media', 'mixin', 'include', 'scssphp-import-once', 'import', 'extend', 'function', 'break', 'continue', 'return', 'each', 'while', 'for', 'if', 'debug', 'warn', 'error', 'content', 'else', 'charset', 'supports', // Todo 'use', 'forward', ])) { return \true; } return \false; } /** * Parse directive value list that considers $vars as keyword * * @param array $out * @param string|false $endChar * * @return bool * * @phpstan-impure */ protected function directiveValue(&$out, $endChar = \false) { $s = $this->count; if ($this->variable($out)) { if ($endChar && $this->matchChar($endChar, \false)) { return \true; } if (!$endChar && $this->end()) { return \true; } } $this->seek($s); if (\is_string($endChar) && $this->openString($endChar ? $endChar : ';', $out, null, null, \true, ";}{")) { if ($endChar && $this->matchChar($endChar, \false)) { return \true; } $ss = $this->count; if (!$endChar && $this->end()) { $this->seek($ss); return \true; } } $this->seek($s); $allowVars = $this->allowVars; $this->allowVars = \false; $res = $this->genericList($out, 'spaceList', ','); $this->allowVars = $allowVars; if ($res) { if ($endChar && $this->matchChar($endChar, \false)) { return \true; } if (!$endChar && $this->end()) { return \true; } } $this->seek($s); if ($endChar && $this->matchChar($endChar, \false)) { return \true; } return \false; } /** * Parse comma separated value list * * @param array $out * * @return bool */ protected function valueList(&$out) { $discardComments = $this->discardComments; $this->discardComments = \true; $res = $this->genericList($out, 'spaceList', ','); $this->discardComments = $discardComments; return $res; } /** * Parse a function call, where externals () are part of the call * and not of the value list * * @param array $out * @param bool $mandatoryEnclos * @param null|string $charAfter * @param null|bool $eatWhiteSp * * @return bool */ protected function functionCallArgumentsList(&$out, $mandatoryEnclos = \true, $charAfter = null, $eatWhiteSp = null) { $s = $this->count; if ($this->matchChar('(') && $this->valueList($out) && $this->matchChar(')') && ($charAfter ? $this->matchChar($charAfter, $eatWhiteSp) : $this->end())) { return \true; } if (!$mandatoryEnclos) { $this->seek($s); if ($this->valueList($out) && ($charAfter ? $this->matchChar($charAfter, $eatWhiteSp) : $this->end())) { return \true; } } $this->seek($s); return \false; } /** * Parse space separated value list * * @param array $out * * @return bool */ protected function spaceList(&$out) { return $this->genericList($out, 'expression'); } /** * Parse generic list * * @param array $out * @param string $parseItem The name of the method used to parse items * @param string $delim * @param bool $flatten * * @return bool */ protected function genericList(&$out, $parseItem, $delim = '', $flatten = \true) { $s = $this->count; $items = []; /** @var array|Number|null $value */ $value = null; while ($this->{$parseItem}($value)) { $trailing_delim = \false; $items[] = $value; if ($delim) { if (!$this->literal($delim, \strlen($delim))) { break; } $trailing_delim = \true; } else { \assert(\is_array($value) || $value instanceof \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Node\Number); // if no delim watch that a keyword didn't eat the single/double quote // from the following starting string if ($value[0] === \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD) { \assert(\is_array($value)); /** @var string $word */ $word = $value[1]; $last_char = \substr($word, -1); if (\strlen($word) > 1 && \in_array($last_char, ["'", '"']) && \substr($word, -2, 1) !== '\\') { // if there is a non escaped opening quote in the keyword, this seems unlikely a mistake $word = \str_replace('\\' . $last_char, '\\\\', $word); if (\strpos($word, $last_char) < \strlen($word) - 1) { continue; } $currentCount = $this->count; // let's try to rewind to previous char and try a parse $this->count--; // in case the keyword also eat spaces while (\substr($this->buffer, $this->count, 1) !== $last_char) { $this->count--; } /** @var array|Number|null $nextValue */ $nextValue = null; if ($this->{$parseItem}($nextValue)) { \assert(\is_array($nextValue) || $nextValue instanceof \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Node\Number); if ($nextValue[0] === \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD && $nextValue[1] === $last_char) { // bad try, forget it $this->seek($currentCount); continue; } if ($nextValue[0] !== \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING) { // bad try, forget it $this->seek($currentCount); continue; } // OK it was a good idea $value[1] = \substr($value[1], 0, -1); \array_pop($items); $items[] = $value; $items[] = $nextValue; } else { // bad try, forget it $this->seek($currentCount); continue; } } } } } if (!$items) { $this->seek($s); return \false; } if ($trailing_delim) { $items[] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_NULL]; } if ($flatten && \count($items) === 1) { $out = $items[0]; } else { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, $delim, $items]; } return \true; } /** * Parse expression * * @param array $out * @param bool $listOnly * @param bool $lookForExp * * @return bool * * @phpstan-impure */ protected function expression(&$out, $listOnly = \false, $lookForExp = \true) { $s = $this->count; $discard = $this->discardComments; $this->discardComments = \true; $allowedTypes = $listOnly ? [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST] : [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_MAP]; if ($this->matchChar('(')) { if ($this->enclosedExpression($lhs, $s, ')', $allowedTypes)) { if ($lookForExp) { $out = $this->expHelper($lhs, 0); } else { $out = $lhs; } $this->discardComments = $discard; return \true; } $this->seek($s); } if (\in_array(\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, $allowedTypes) && $this->matchChar('[')) { if ($this->enclosedExpression($lhs, $s, ']', [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST])) { if ($lookForExp) { $out = $this->expHelper($lhs, 0); } else { $out = $lhs; } $this->discardComments = $discard; return \true; } $this->seek($s); } if (!$listOnly && $this->value($lhs)) { if ($lookForExp) { $out = $this->expHelper($lhs, 0); } else { $out = $lhs; } $this->discardComments = $discard; return \true; } $this->discardComments = $discard; return \false; } /** * Parse expression specifically checking for lists in parenthesis or brackets * * @param array $out * @param int $s * @param string $closingParen * @param string[] $allowedTypes * * @return bool * * @phpstan-param array<Type::*> $allowedTypes */ protected function enclosedExpression(&$out, $s, $closingParen = ')', $allowedTypes = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_MAP]) { if ($this->matchChar($closingParen) && \in_array(\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, $allowedTypes)) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, '', []]; switch ($closingParen) { case ')': $out['enclosing'] = 'parent'; // parenthesis list break; case ']': $out['enclosing'] = 'bracket'; // bracketed list break; } return \true; } if ($this->valueList($out) && $this->matchChar($closingParen) && !($closingParen === ')' && \in_array($out[0], [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_EXPRESSION, \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_UNARY])) && \in_array(\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, $allowedTypes)) { if ($out[0] !== \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST || !empty($out['enclosing'])) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, '', [$out]]; } switch ($closingParen) { case ')': $out['enclosing'] = 'parent'; // parenthesis list break; case ']': $out['enclosing'] = 'bracket'; // bracketed list break; } return \true; } $this->seek($s); if (\in_array(\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_MAP, $allowedTypes) && $this->map($out)) { return \true; } return \false; } /** * Parse left-hand side of subexpression * * @param array $lhs * @param int $minP * * @return array */ protected function expHelper($lhs, $minP) { $operators = static::$operatorPattern; $ss = $this->count; $whiteBefore = isset($this->buffer[$this->count - 1]) && \ctype_space($this->buffer[$this->count - 1]); while ($this->match($operators, $m, \false) && static::$precedence[\strtolower($m[1])] >= $minP) { $whiteAfter = isset($this->buffer[$this->count]) && \ctype_space($this->buffer[$this->count]); $varAfter = isset($this->buffer[$this->count]) && $this->buffer[$this->count] === '$'; $this->whitespace(); $op = $m[1]; // don't turn negative numbers into expressions if ($op === '-' && $whiteBefore && !$whiteAfter && !$varAfter) { break; } if (!$this->value($rhs) && !$this->expression($rhs, \true, \false)) { break; } if ($op === '-' && !$whiteAfter && $rhs[0] === \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD) { break; } // consume higher-precedence operators on the right-hand side $rhs = $this->expHelper($rhs, static::$precedence[\strtolower($op)] + 1); $lhs = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_EXPRESSION, $op, $lhs, $rhs, $this->inParens, $whiteBefore, $whiteAfter]; $ss = $this->count; $whiteBefore = isset($this->buffer[$this->count - 1]) && \ctype_space($this->buffer[$this->count - 1]); } $this->seek($ss); return $lhs; } /** * Parse value * * @param array $out * * @return bool */ protected function value(&$out) { if (!isset($this->buffer[$this->count])) { return \false; } $s = $this->count; $char = $this->buffer[$this->count]; if ($this->literal('url(', 4) && $this->match('data:([a-z]+)\\/([a-z0-9.+-]+);base64,', $m, \false)) { $len = \strspn($this->buffer, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwyxz0123456789+/=', $this->count); $this->count += $len; if ($this->matchChar(')')) { $content = \substr($this->buffer, $s, $this->count - $s); $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, $content]; return \true; } } $this->seek($s); if ($this->literal('url(', 4, \false) && $this->match('\\s*(\\/\\/[^\\s\\)]+)\\s*', $m)) { $content = 'url(' . $m[1]; if ($this->matchChar(')')) { $content .= ')'; $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, $content]; return \true; } } $this->seek($s); // not if ($char === 'n' && $this->literal('not', 3, \false)) { if ($this->whitespace() && $this->value($inner)) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_UNARY, 'not', $inner, $this->inParens]; return \true; } $this->seek($s); if ($this->parenValue($inner)) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_UNARY, 'not', $inner, $this->inParens]; return \true; } $this->seek($s); } // addition if ($char === '+') { $this->count++; $follow_white = $this->whitespace(); if ($this->value($inner)) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_UNARY, '+', $inner, $this->inParens]; return \true; } if ($follow_white) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, $char]; return \true; } $this->seek($s); return \false; } // negation if ($char === '-') { if ($this->customProperty($out)) { return \true; } $this->count++; $follow_white = $this->whitespace(); if ($this->variable($inner) || $this->unit($inner) || $this->parenValue($inner)) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_UNARY, '-', $inner, $this->inParens]; return \true; } if ($this->keyword($inner) && !$this->func($inner, $out)) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_UNARY, '-', $inner, $this->inParens]; return \true; } if ($follow_white) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, $char]; return \true; } $this->seek($s); } // paren if ($char === '(' && $this->parenValue($out)) { return \true; } if ($char === '#') { if ($this->interpolation($out) || $this->color($out)) { return \true; } $this->count++; if ($this->keyword($keyword)) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, '#' . $keyword]; return \true; } $this->count--; } if ($this->matchChar('&', \true)) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_SELF]; return \true; } if ($char === '$' && $this->variable($out)) { return \true; } if ($char === 'p' && $this->progid($out)) { return \true; } if (($char === '"' || $char === "'") && $this->string($out)) { return \true; } if ($this->unit($out)) { return \true; } // unicode range with wildcards if ($this->literal('U+', 2) && $this->match('\\?+|([0-9A-F]+(\\?+|(-[0-9A-F]+))?)', $m, \false)) { $unicode = \explode('-', $m[0]); if (\strlen(\reset($unicode)) <= 6 && \strlen(\end($unicode)) <= 6) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, 'U+' . $m[0]]; return \true; } $this->count -= \strlen($m[0]) + 2; } if ($this->keyword($keyword, \false)) { if ($this->func($keyword, $out)) { return \true; } $this->whitespace(); if ($keyword === 'null') { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_NULL]; } else { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, $keyword]; } return \true; } return \false; } /** * Parse parenthesized value * * @param array $out * * @return bool */ protected function parenValue(&$out) { $s = $this->count; $inParens = $this->inParens; if ($this->matchChar('(')) { if ($this->matchChar(')')) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST, '', []]; return \true; } $this->inParens = \true; if ($this->expression($exp) && $this->matchChar(')')) { $out = $exp; $this->inParens = $inParens; return \true; } } $this->inParens = $inParens; $this->seek($s); return \false; } /** * Parse "progid:" * * @param array $out * * @return bool */ protected function progid(&$out) { $s = $this->count; if ($this->literal('progid:', 7, \false) && $this->openString('(', $fn) && $this->matchChar('(')) { $this->openString(')', $args, '('); if ($this->matchChar(')')) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', ['progid:', $fn, '(', $args, ')']]; return \true; } } $this->seek($s); return \false; } /** * Parse function call * * @param string $name * @param array $func * * @return bool */ protected function func($name, &$func) { $s = $this->count; if ($this->matchChar('(')) { if ($name === 'alpha' && $this->argumentList($args)) { $func = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_FUNCTION, $name, [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', $args]]; return \true; } if ($name !== 'expression' && !\preg_match('/^(-[a-z]+-)?calc$/', $name)) { $ss = $this->count; if ($this->argValues($args) && $this->matchChar(')')) { if (\strtolower($name) === 'var' && \count($args) === 2 && $args[1][0] === \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_NULL) { $args[1] = [null, [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', [' ']], \false]; } $func = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_FUNCTION_CALL, $name, $args]; return \true; } $this->seek($ss); } if (($this->openString(')', $str, '(') || \true) && $this->matchChar(')')) { $args = []; if (!empty($str)) { $args[] = [null, [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', [$str]]]; } $func = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_FUNCTION_CALL, $name, $args]; return \true; } } $this->seek($s); return \false; } /** * Parse function call argument list * * @param array $out * * @return bool */ protected function argumentList(&$out) { $s = $this->count; $this->matchChar('('); $args = []; while ($this->keyword($var)) { if ($this->matchChar('=') && $this->expression($exp)) { $args[] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', [$var . '=']]; $arg = $exp; } else { break; } $args[] = $arg; if (!$this->matchChar(',')) { break; } $args[] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', [', ']]; } if (!$this->matchChar(')') || !$args) { $this->seek($s); return \false; } $out = $args; return \true; } /** * Parse mixin/function definition argument list * * @param array $out * * @return bool */ protected function argumentDef(&$out) { $s = $this->count; $this->matchChar('('); $args = []; while ($this->variable($var)) { $arg = [$var[1], null, \false]; $ss = $this->count; if ($this->matchChar(':') && $this->genericList($defaultVal, 'expression', '', \true)) { $arg[1] = $defaultVal; } else { $this->seek($ss); } $ss = $this->count; if ($this->literal('...', 3)) { $sss = $this->count; if (!$this->matchChar(')')) { throw $this->parseError('... has to be after the final argument'); } $arg[2] = \true; $this->seek($sss); } else { $this->seek($ss); } $args[] = $arg; if (!$this->matchChar(',')) { break; } } if (!$this->matchChar(')')) { $this->seek($s); return \false; } $out = $args; return \true; } /** * Parse map * * @param array $out * * @return bool */ protected function map(&$out) { $s = $this->count; if (!$this->matchChar('(')) { return \false; } $keys = []; $values = []; while ($this->genericList($key, 'expression', '', \true) && $this->matchChar(':') && $this->genericList($value, 'expression', '', \true)) { $keys[] = $key; $values[] = $value; if (!$this->matchChar(',')) { break; } } if (!$keys || !$this->matchChar(')')) { $this->seek($s); return \false; } $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_MAP, $keys, $values]; return \true; } /** * Parse color * * @param array $out * * @return bool */ protected function color(&$out) { $s = $this->count; if ($this->match('(#([0-9a-f]+)\\b)', $m)) { if (\in_array(\strlen($m[2]), [3, 4, 6, 8])) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, $m[0]]; return \true; } $this->seek($s); return \false; } return \false; } /** * Parse number with unit * * @param array $unit * * @return bool */ protected function unit(&$unit) { $s = $this->count; if ($this->match('([0-9]*(\\.)?[0-9]+)([%a-zA-Z]+)?', $m, \false)) { if (\strlen($this->buffer) === $this->count || !\ctype_digit($this->buffer[$this->count])) { $this->whitespace(); $unit = new \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Node\Number($m[1], empty($m[3]) ? '' : $m[3]); return \true; } $this->seek($s); } return \false; } /** * Parse string * * @param array $out * @param bool $keepDelimWithInterpolation * * @return bool */ protected function string(&$out, $keepDelimWithInterpolation = \false) { $s = $this->count; if ($this->matchChar('"', \false)) { $delim = '"'; } elseif ($this->matchChar("'", \false)) { $delim = "'"; } else { return \false; } $content = []; $oldWhite = $this->eatWhiteDefault; $this->eatWhiteDefault = \false; $hasInterpolation = \false; while ($this->matchString($m, $delim)) { if ($m[1] !== '') { $content[] = $m[1]; } if ($m[2] === '#{') { $this->count -= \strlen($m[2]); if ($this->interpolation($inter, \false)) { $content[] = $inter; $hasInterpolation = \true; } else { $this->count += \strlen($m[2]); $content[] = '#{'; // ignore it } } elseif ($m[2] === "\r") { $content[] = \chr(10); // TODO : warning # DEPRECATION WARNING on line x, column y of zzz: # Unescaped multiline strings are deprecated and will be removed in a future version of Sass. # To include a newline in a string, use "\a" or "\a " as in CSS. if ($this->matchChar("\n", \false)) { $content[] = ' '; } } elseif ($m[2] === '\\') { if ($this->literal("\r\n", 2, \false) || $this->matchChar("\r", \false) || $this->matchChar("\n", \false) || $this->matchChar("\f", \false)) { // this is a continuation escaping, to be ignored } elseif ($this->matchEscapeCharacter($c)) { $content[] = $c; } else { throw $this->parseError('Unterminated escape sequence'); } } else { $this->count -= \strlen($delim); break; // delim } } $this->eatWhiteDefault = $oldWhite; if ($this->literal($delim, \strlen($delim))) { if ($hasInterpolation && !$keepDelimWithInterpolation) { $delim = '"'; } $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, $delim, $content]; return \true; } $this->seek($s); return \false; } /** * @param string $out * @param bool $inKeywords * * @return bool */ protected function matchEscapeCharacter(&$out, $inKeywords = \false) { $s = $this->count; if ($this->match('[a-f0-9]', $m, \false)) { $hex = $m[0]; for ($i = 5; $i--;) { if ($this->match('[a-f0-9]', $m, \false)) { $hex .= $m[0]; } else { break; } } // CSS allows Unicode escape sequences to be followed by a delimiter space // (necessary in some cases for shorter sequences to disambiguate their end) $this->matchChar(' ', \false); $value = \hexdec($hex); if (!$inKeywords && ($value == 0 || $value >= 0xd800 && $value <= 0xdfff || $value >= 0x10ffff)) { $out = "�"; // "\u{FFFD}" but with a syntax supported on PHP 5 } elseif ($value < 0x20) { $out = \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Util::mbChr($value); } else { $out = \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Util::mbChr($value); } return \true; } if ($this->match('.', $m, \false)) { if ($inKeywords && \in_array($m[0], ["'", '"', '@', '&', ' ', '\\', ':', '/', '%'])) { $this->seek($s); return \false; } $out = $m[0]; return \true; } return \false; } /** * Parse keyword or interpolation * * @param array $out * @param bool $restricted * * @return bool */ protected function mixedKeyword(&$out, $restricted = \false) { $parts = []; $oldWhite = $this->eatWhiteDefault; $this->eatWhiteDefault = \false; for (;;) { if ($restricted ? $this->restrictedKeyword($key) : $this->keyword($key)) { $parts[] = $key; continue; } if ($this->interpolation($inter)) { $parts[] = $inter; continue; } break; } $this->eatWhiteDefault = $oldWhite; if (!$parts) { return \false; } if ($this->eatWhiteDefault) { $this->whitespace(); } $out = $parts; return \true; } /** * Parse an unbounded string stopped by $end * * @param string $end * @param array $out * @param string $nestOpen * @param string $nestClose * @param bool $rtrim * @param string $disallow * * @return bool */ protected function openString($end, &$out, $nestOpen = null, $nestClose = null, $rtrim = \true, $disallow = null) { $oldWhite = $this->eatWhiteDefault; $this->eatWhiteDefault = \false; if ($nestOpen && !$nestClose) { $nestClose = $end; } $patt = $disallow ? '[^' . $this->pregQuote($disallow) . ']' : '.'; $patt = '(' . $patt . '*?)([\'"]|#\\{|' . $this->pregQuote($end) . '|' . ($nestClose && $nestClose !== $end ? $this->pregQuote($nestClose) . '|' : '') . static::$commentPattern . ')'; $nestingLevel = 0; $content = []; while ($this->match($patt, $m, \false)) { if (isset($m[1]) && $m[1] !== '') { $content[] = $m[1]; if ($nestOpen) { $nestingLevel += \substr_count($m[1], $nestOpen); } } $tok = $m[2]; $this->count -= \strlen($tok); if ($tok === $end && !$nestingLevel) { break; } if ($tok === $nestClose) { $nestingLevel--; } if (($tok === "'" || $tok === '"') && $this->string($str, \true)) { $content[] = $str; continue; } if ($tok === '#{' && $this->interpolation($inter)) { $content[] = $inter; continue; } $content[] = $tok; $this->count += \strlen($tok); } $this->eatWhiteDefault = $oldWhite; if (!$content || $tok !== $end) { return \false; } // trim the end if ($rtrim && \is_string(\end($content))) { $content[\count($content) - 1] = \rtrim(\end($content)); } $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', $content]; return \true; } /** * Parser interpolation * * @param string|array $out * @param bool $lookWhite save information about whitespace before and after * * @return bool */ protected function interpolation(&$out, $lookWhite = \true) { $oldWhite = $this->eatWhiteDefault; $allowVars = $this->allowVars; $this->allowVars = \true; $this->eatWhiteDefault = \true; $s = $this->count; if ($this->literal('#{', 2) && $this->valueList($value) && $this->matchChar('}', \false)) { if ($value === [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_SELF]) { $out = $value; } else { if ($lookWhite) { $left = $s > 0 && \preg_match('/\\s/', $this->buffer[$s - 1]) ? ' ' : ''; $right = !empty($this->buffer[$this->count]) && \preg_match('/\\s/', $this->buffer[$this->count]) ? ' ' : ''; } else { $left = $right = \false; } $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_INTERPOLATE, $value, $left, $right]; } $this->eatWhiteDefault = $oldWhite; $this->allowVars = $allowVars; if ($this->eatWhiteDefault) { $this->whitespace(); } return \true; } $this->seek($s); $this->eatWhiteDefault = $oldWhite; $this->allowVars = $allowVars; return \false; } /** * Parse property name (as an array of parts or a string) * * @param array $out * * @return bool */ protected function propertyName(&$out) { $parts = []; $oldWhite = $this->eatWhiteDefault; $this->eatWhiteDefault = \false; for (;;) { if ($this->interpolation($inter)) { $parts[] = $inter; continue; } if ($this->keyword($text)) { $parts[] = $text; continue; } if (!$parts && $this->match('[:.#]', $m, \false)) { // css hacks $parts[] = $m[0]; continue; } break; } $this->eatWhiteDefault = $oldWhite; if (!$parts) { return \false; } // match comment hack if (\preg_match(static::$whitePattern, $this->buffer, $m, 0, $this->count)) { if (!empty($m[0])) { $parts[] = $m[0]; $this->count += \strlen($m[0]); } } $this->whitespace(); // get any extra whitespace $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', $parts]; return \true; } /** * Parse custom property name (as an array of parts or a string) * * @param array $out * * @return bool */ protected function customProperty(&$out) { $s = $this->count; if (!$this->literal('--', 2, \false)) { return \false; } $parts = ['--']; $oldWhite = $this->eatWhiteDefault; $this->eatWhiteDefault = \false; for (;;) { if ($this->interpolation($inter)) { $parts[] = $inter; continue; } if ($this->matchChar('&', \false)) { $parts[] = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_SELF]; continue; } if ($this->variable($var)) { $parts[] = $var; continue; } if ($this->keyword($text)) { $parts[] = $text; continue; } break; } $this->eatWhiteDefault = $oldWhite; if (\count($parts) == 1) { $this->seek($s); return \false; } $this->whitespace(); // get any extra whitespace $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', $parts]; return \true; } /** * Parse comma separated selector list * * @param array $out * @param string|bool $subSelector * * @return bool */ protected function selectors(&$out, $subSelector = \false) { $s = $this->count; $selectors = []; while ($this->selector($sel, $subSelector)) { $selectors[] = $sel; if (!$this->matchChar(',', \true)) { break; } while ($this->matchChar(',', \true)) { // ignore extra } } if (!$selectors) { $this->seek($s); return \false; } $out = $selectors; return \true; } /** * Parse whitespace separated selector list * * @param array $out * @param string|bool $subSelector * * @return bool */ protected function selector(&$out, $subSelector = \false) { $selector = []; $discardComments = $this->discardComments; $this->discardComments = \true; for (;;) { $s = $this->count; if ($this->match('[>+~]+', $m, \true)) { if ($subSelector && \is_string($subSelector) && \strpos($subSelector, 'nth-') === 0 && $m[0] === '+' && $this->match("(\\d+|n\\b)", $counter)) { $this->seek($s); } else { $selector[] = [$m[0]]; continue; } } if ($this->selectorSingle($part, $subSelector)) { $selector[] = $part; $this->whitespace(); continue; } break; } $this->discardComments = $discardComments; if (!$selector) { return \false; } $out = $selector; return \true; } /** * parsing escaped chars in selectors: * - escaped single chars are kept escaped in the selector but in a normalized form * (if not in 0-9a-f range as this would be ambigous) * - other escaped sequences (multibyte chars or 0-9a-f) are kept in their initial escaped form, * normalized to lowercase * * TODO: this is a fallback solution. Ideally escaped chars in selectors should be encoded as the genuine chars, * and escaping added when printing in the Compiler, where/if it's mandatory * - but this require a better formal selector representation instead of the array we have now * * @param string $out * @param bool $keepEscapedNumber * * @return bool */ protected function matchEscapeCharacterInSelector(&$out, $keepEscapedNumber = \false) { $s_escape = $this->count; if ($this->match('\\\\', $m)) { $out = '\\' . $m[0]; return \true; } if ($this->matchEscapeCharacter($escapedout, \true)) { if (\strlen($escapedout) === 1) { if (!\preg_match(",\\w,", $escapedout)) { $out = '\\' . $escapedout; return \true; } elseif (!$keepEscapedNumber || !\is_numeric($escapedout)) { $out = $escapedout; return \true; } } $escape_sequence = \rtrim(\substr($this->buffer, $s_escape, $this->count - $s_escape)); if (\strlen($escape_sequence) < 6) { $escape_sequence .= ' '; } $out = '\\' . \strtolower($escape_sequence); return \true; } if ($this->match('\\S', $m)) { $out = '\\' . $m[0]; return \true; } return \false; } /** * Parse the parts that make up a selector * * {@internal * div[yes=no]#something.hello.world:nth-child(-2n+1)%placeholder * }} * * @param array $out * @param string|bool $subSelector * * @return bool */ protected function selectorSingle(&$out, $subSelector = \false) { $oldWhite = $this->eatWhiteDefault; $this->eatWhiteDefault = \false; $parts = []; if ($this->matchChar('*', \false)) { $parts[] = '*'; } for (;;) { if (!isset($this->buffer[$this->count])) { break; } $s = $this->count; $char = $this->buffer[$this->count]; // see if we can stop early if ($char === '{' || $char === ',' || $char === ';' || $char === '}' || $char === '@') { break; } // parsing a sub selector in () stop with the closing ) if ($subSelector && $char === ')') { break; } //self switch ($char) { case '&': $parts[] = \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Compiler::$selfSelector; $this->count++; !$this->cssOnly || $this->assertPlainCssValid(\false, $s); continue 2; case '.': $parts[] = '.'; $this->count++; continue 2; case '|': $parts[] = '|'; $this->count++; continue 2; } // handling of escaping in selectors : get the escaped char if ($char === '\\') { $this->count++; if ($this->matchEscapeCharacterInSelector($escaped, \true)) { $parts[] = $escaped; continue; } $this->count--; } if ($char === '%') { $this->count++; if ($this->placeholder($placeholder)) { $parts[] = '%'; $parts[] = $placeholder; !$this->cssOnly || $this->assertPlainCssValid(\false, $s); continue; } break; } if ($char === '#') { if ($this->interpolation($inter)) { $parts[] = $inter; !$this->cssOnly || $this->assertPlainCssValid(\false, $s); continue; } $parts[] = '#'; $this->count++; continue; } // a pseudo selector if ($char === ':') { if ($this->buffer[$this->count + 1] === ':') { $this->count += 2; $part = '::'; } else { $this->count++; $part = ':'; } if ($this->mixedKeyword($nameParts, \true)) { $parts[] = $part; foreach ($nameParts as $sub) { $parts[] = $sub; } $ss = $this->count; if ($nameParts === ['not'] || $nameParts === ['is'] || $nameParts === ['has'] || $nameParts === ['where'] || $nameParts === ['slotted'] || $nameParts === ['nth-child'] || $nameParts === ['nth-last-child'] || $nameParts === ['nth-of-type'] || $nameParts === ['nth-last-of-type']) { if ($this->matchChar('(', \true) && ($this->selectors($subs, \reset($nameParts)) || \true) && $this->matchChar(')')) { $parts[] = '('; while ($sub = \array_shift($subs)) { while ($ps = \array_shift($sub)) { foreach ($ps as &$p) { $parts[] = $p; } if (\count($sub) && \reset($sub)) { $parts[] = ' '; } } if (\count($subs) && \reset($subs)) { $parts[] = ', '; } } $parts[] = ')'; } else { $this->seek($ss); } } elseif ($this->matchChar('(', \true) && ($this->openString(')', $str, '(') || \true) && $this->matchChar(')')) { $parts[] = '('; if (!empty($str)) { $parts[] = $str; } $parts[] = ')'; } else { $this->seek($ss); } continue; } } $this->seek($s); // 2n+1 if ($subSelector && \is_string($subSelector) && \strpos($subSelector, 'nth-') === 0) { if ($this->match("(\\s*(\\+\\s*|\\-\\s*)?(\\d+|n|\\d+n))+", $counter)) { $parts[] = $counter[0]; //$parts[] = str_replace(' ', '', $counter[0]); continue; } } $this->seek($s); // attribute selector if ($char === '[' && $this->matchChar('[') && ($this->openString(']', $str, '[') || \true) && $this->matchChar(']')) { $parts[] = '['; if (!empty($str)) { $parts[] = $str; } $parts[] = ']'; continue; } $this->seek($s); // for keyframes if ($this->unit($unit)) { $parts[] = $unit; continue; } if ($this->restrictedKeyword($name, \false, \true)) { $parts[] = $name; continue; } break; } $this->eatWhiteDefault = $oldWhite; if (!$parts) { return \false; } $out = $parts; return \true; } /** * Parse a variable * * @param array $out * * @return bool */ protected function variable(&$out) { $s = $this->count; if ($this->matchChar('$', \false) && $this->keyword($name)) { if ($this->allowVars) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_VARIABLE, $name]; } else { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD, '$' . $name]; } return \true; } $this->seek($s); return \false; } /** * Parse a keyword * * @param string $word * @param bool $eatWhitespace * @param bool $inSelector * * @return bool */ protected function keyword(&$word, $eatWhitespace = null, $inSelector = \false) { $s = $this->count; $match = $this->match($this->utf8 ? '(([\\pL\\w\\x{00A0}-\\x{10FFFF}_\\-\\*!"\']|\\\\[a-f0-9]{6} ?|\\\\[a-f0-9]{1,5}(?![a-f0-9]) ?|[\\\\].)([\\pL\\w\\x{00A0}-\\x{10FFFF}\\-_"\']|\\\\[a-f0-9]{6} ?|\\\\[a-f0-9]{1,5}(?![a-f0-9]) ?|[\\\\].)*)' : '(([\\w_\\-\\*!"\']|\\\\[a-f0-9]{6} ?|\\\\[a-f0-9]{1,5}(?![a-f0-9]) ?|[\\\\].)([\\w\\-_"\']|\\\\[a-f0-9]{6} ?|\\\\[a-f0-9]{1,5}(?![a-f0-9]) ?|[\\\\].)*)', $m, \false); if ($match) { $word = $m[1]; // handling of escaping in keyword : get the escaped char if (\strpos($word, '\\') !== \false) { $send = $this->count; $escapedWord = []; $this->seek($s); $previousEscape = \false; while ($this->count < $send) { $char = $this->buffer[$this->count]; $this->count++; if ($this->count < $send && $char === '\\' && !$previousEscape && ($inSelector ? $this->matchEscapeCharacterInSelector($out) : $this->matchEscapeCharacter($out, \true))) { $escapedWord[] = $out; } else { if ($previousEscape) { $previousEscape = \false; } elseif ($char === '\\') { $previousEscape = \true; } $escapedWord[] = $char; } } $word = \implode('', $escapedWord); } if (\is_null($eatWhitespace) ? $this->eatWhiteDefault : $eatWhitespace) { $this->whitespace(); } return \true; } return \false; } /** * Parse a keyword that should not start with a number * * @param string $word * @param bool $eatWhitespace * @param bool $inSelector * * @return bool */ protected function restrictedKeyword(&$word, $eatWhitespace = null, $inSelector = \false) { $s = $this->count; if ($this->keyword($word, $eatWhitespace, $inSelector) && (\ord($word[0]) > 57 || \ord($word[0]) < 48)) { return \true; } $this->seek($s); return \false; } /** * Parse a placeholder * * @param string|array $placeholder * * @return bool */ protected function placeholder(&$placeholder) { $match = $this->match($this->utf8 ? '([\\pL\\w\\-_]+)' : '([\\w\\-_]+)', $m); if ($match) { $placeholder = $m[1]; return \true; } if ($this->interpolation($placeholder)) { return \true; } return \false; } /** * Parse a url * * @param array $out * * @return bool */ protected function url(&$out) { if ($this->literal('url(', 4)) { $s = $this->count; if (($this->string($out) || $this->spaceList($out)) && $this->matchChar(')')) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', ['url(', $out, ')']]; return \true; } $this->seek($s); if ($this->openString(')', $out) && $this->matchChar(')')) { $out = [\PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_STRING, '', ['url(', $out, ')']]; return \true; } } return \false; } /** * Consume an end of statement delimiter * @param bool $eatWhitespace * * @return bool */ protected function end($eatWhitespace = null) { if ($this->matchChar(';', $eatWhitespace)) { return \true; } if ($this->count === \strlen($this->buffer) || $this->buffer[$this->count] === '}') { // if there is end of file or a closing block next then we don't need a ; return \true; } return \false; } /** * Strip assignment flag from the list * * @param array $value * * @return string[] */ protected function stripAssignmentFlags(&$value) { $flags = []; for ($token =& $value; $token[0] === \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST && ($s = \count($token[2])); $token =& $lastNode) { $lastNode =& $token[2][$s - 1]; while ($lastNode[0] === \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_KEYWORD && \in_array($lastNode[1], ['!default', '!global'])) { \array_pop($token[2]); $node = \end($token[2]); $token = $this->flattenList($token); $flags[] = $lastNode[1]; $lastNode = $node; } } return $flags; } /** * Strip optional flag from selector list * * @param array $selectors * * @return bool */ protected function stripOptionalFlag(&$selectors) { $optional = \false; $selector = \end($selectors); $part = \end($selector); if ($part === ['!optional']) { \array_pop($selectors[\count($selectors) - 1]); $optional = \true; } return $optional; } /** * Turn list of length 1 into value type * * @param array $value * * @return array */ protected function flattenList($value) { if ($value[0] === \PrestaShop\Module\PsxDesign\Vendor\ScssPhp\ScssPhp\Type::T_LIST && \count($value[2]) === 1) { return $this->flattenList($value[2][0]); } return $value; } /** * Quote regular expression * * @param string $what * * @return string */ private function pregQuote($what) { return \preg_quote($what, '/'); } /** * Extract line numbers from buffer * * @param string $buffer * * @return void */ private function extractLineNumbers($buffer) { $this->sourcePositions = [0 => 0]; $prev = 0; while (($pos = \strpos($buffer, "\n", $prev)) !== \false) { $this->sourcePositions[] = $pos; $prev = $pos + 1; } $this->sourcePositions[] = \strlen($buffer); if (\substr($buffer, -1) !== "\n") { $this->sourcePositions[] = \strlen($buffer) + 1; } } /** * Get source line number and column (given character position in the buffer) * * @param int $pos * * @return array * @phpstan-return array{int, int} */ private function getSourcePosition($pos) { $low = 0; $high = \count($this->sourcePositions); while ($low < $high) { $mid = (int) (($high + $low) / 2); if ($pos < $this->sourcePositions[$mid]) { $high = $mid - 1; continue; } if ($pos >= $this->sourcePositions[$mid + 1]) { $low = $mid + 1; continue; } return [$mid + 1, $pos - $this->sourcePositions[$mid]]; } return [$low + 1, $pos - $this->sourcePositions[$low]]; } /** * Save internal encoding of mbstring * * When mbstring.func_overload is used to replace the standard PHP string functions, * this method configures the internal encoding to a single-byte one so that the * behavior matches the normal behavior of PHP string functions while using the parser. * The existing internal encoding is saved and will be restored when calling {@see restoreEncoding}. * * If mbstring.func_overload is not used (or does not override string functions), this method is a no-op. * * @return void */ private function saveEncoding() { if (\PHP_VERSION_ID < 80000 && \extension_loaded('mbstring') && (2 & (int) \ini_get('mbstring.func_overload')) > 0) { $this->encoding = \mb_internal_encoding(); \mb_internal_encoding('iso-8859-1'); } } /** * Restore internal encoding * * @return void */ private function restoreEncoding() { if (\extension_loaded('mbstring') && $this->encoding) { \mb_internal_encoding($this->encoding); } } }

Es la eliminación del sarro y la placa adherida a la superficie de los dientes mediante un equipo de ultrasonidos que garantiza la integridad de las piezas dentales a la vez que elimina en profundidad cualquier resto de suciedad.

A continuación se procede al pulido de los dientes mediante una fresa especial que elimina la placa bacteriana y devuelve a los dientes el aspecto sano que deben tener.

Una vez terminado todo el proceso, se mantiene al perro en observación hasta que se despierta de la anestesia, bajo la atenta supervisión de un veterinario.

¿Cada cuánto tiempo tengo que hacerle una limpieza dental a mi perro?

A partir de cierta edad, los perros pueden necesitar una limpieza dental anual o bianual. Depende de cada caso. En líneas generales, puede decirse que los perros de razas pequeñas suelen acumular más sarro y suelen necesitar una atención mayor en cuanto a higiene dental.

Riesgos de una mala higiene

Los riesgos más evidentes de una mala higiene dental en los perros son los siguientes:

Cuando la acumulación de sarro no se trata, se puede producir una inflamación y retracción de las encías que puede descalzar el diente y provocar caídas.
Mal aliento (halitosis).
Sarro perros
Puede ir a más
Las bacterias de la placa pueden trasladarse a través del torrente circulatorio a órganos vitales como el corazón ocasionando problemas de endocarditis en las válvulas. Las bacterias pueden incluso acantonarse en huesos (La osteomielitis es la infección ósea, tanto cortical como medular) provocando mucho dolor y una artritis séptica).

¿Cómo se forma el sarro?

El sarro es la calcificación de la placa dental. Los restos de alimentos, junto con las bacterias presentes en la boca, van a formar la placa bacteriana o placa dental. Si la placa no se retira, al mezclarse con la saliva y los minerales presentes en ella, reaccionará formando una costra. La placa se calcifica y se forma el sarro.

El sarro, cuando se forma, es de color blanquecino pero a medida que pasa el tiempo se va poniendo amarillo y luego marrón.

Síntomas de una pobre higiene dental
La señal más obvia de una mala salud dental canina es el mal aliento.

Sin embargo, a veces no es tan fácil de detectar
Y hay perros que no se dejan abrir la boca por su dueño. Por ejemplo…

Recientemente nos trajeron a la clínica a un perro que parpadeaba de un ojo y decía su dueño que le picaba un lado de la cara. Tenía molestias y dificultad para comer, lo que había llevado a sus dueños a comprarle comida blanda (que suele ser un poco más cara y llevar más contenido en grasa) durante medio año. Después de una exploración oftalmológica, nos dimos cuenta de que el ojo tenía una úlcera en la córnea probablemente de rascarse . Además, el canto lateral del ojo estaba inflamado. Tenía lo que en humanos llamamos flemón pero como era un perro de pelo largo, no se le notaba a simple vista. Al abrirle la boca nos llamó la atención el ver una muela llena de sarro. Le realizamos una radiografía y encontramos una fístula que llegaba hasta la parte inferior del ojo.

Le tuvimos que extraer la muela. Tras esto, el ojo se curó completamente con unos colirios y una lentilla protectora de úlcera. Afortunadamente, la úlcera no profundizó y no perforó el ojo. Ahora el perro come perfectamente a pesar de haber perdido una muela.

¿Cómo mantener la higiene dental de tu perro?
Hay varias maneras de prevenir problemas derivados de la salud dental de tu perro.

Limpiezas de dientes en casa
Es recomendable limpiar los dientes de tu perro semanal o diariamente si se puede. Existe una gran variedad de productos que se pueden utilizar:

Pastas de dientes.
Cepillos de dientes o dedales para el dedo índice, que hacen más fácil la limpieza.
Colutorios para echar en agua de bebida o directamente sobre el diente en líquido o en spray.

En la Clínica Tus Veterinarios enseñamos a nuestros clientes a tomar el hábito de limpiar los dientes de sus perros desde que son cachorros. Esto responde a nuestro compromiso con la prevención de enfermedades caninas.

Hoy en día tenemos muchos clientes que limpian los dientes todos los días a su mascota, y como resultado, se ahorran el dinero de hacer limpiezas dentales profesionales y consiguen una mejor salud de su perro.

Limpiezas dentales profesionales de perros y gatos

Recomendamos hacer una limpieza dental especializada anualmente. La realizamos con un aparato de ultrasonidos que utiliza agua para quitar el sarro. Después, procedemos a pulir los dientes con un cepillo de alta velocidad y una pasta especial. Hacemos esto para proteger el esmalte.

La frecuencia de limpiezas dentales necesaria varía mucho entre razas. En general, las razas grandes tienen buena calidad de esmalte, por lo que no necesitan hacerlo tan a menudo e incluso pueden pasarse la vida sin requerir una limpieza. Sin embargo, razas pequeñas como el Yorkshire o el Maltés, deben hacérselas todos los años desde cachorros si se quiere conservar sus piezas dentales.

Otro factor fundamental es la calidad del pienso. Algunas marcas han diseñado croquetas que limpian la superficie del diente y de la muela al masticarse.

Ultrasonido para perros

¿Se necesita anestesia para las limpiezas dentales de perros y gatos?

La limpieza dental en perros no es una técnica que pueda practicarse sin anestesia general , aunque hay veces que los propietarios no quieren anestesiar y si tiene poco sarro y el perro es muy bueno se puede intentar…… , pero no se va a poder pulir ni acceder a todas la zona de la boca …. Además los limpiadores dentales van a irrigar agua y hay riesgo de aspiración a vías respiratorias si no se realiza una anestesia correcta con intubación traqueal . En resumen , sin anestesia no se va hacer una correcta limpieza dental.

Tampoco sirve la sedación ya que necesitamos que el animal esté totalmente quieto, y el veterinario tenga un acceso completo a todas sus piezas dentales y encías.

Alimentos para la limpieza dental

Hay que tener cierto cuidado a la hora de comprar determinados alimentos porque no todos son saludables. Algunos tienen demasiado contenido graso, que en exceso puede causar problemas cardiovasculares y obesidad.

Los mejores alimentos para los dientes son aquellos que están elaborados por empresas farmacéuticas y llevan componentes químicos con tratamientos específicos para el diente del perro. Esto implica no solo limpieza a través de la acción mecánica de morder sino también un tratamiento antibacteriano para prevenir el sarro.

Conclusión

Si eres como la mayoría de dueños, por falta de tiempo , es probable que no estés prestando la suficiente atención a la limpieza dental de tu perro. Por eso te animamos a que comiences a limpiar los dientes de tu perro y consideres atender a su higiene bucal con frecuencia.

Estas simples medidas pueden conllevar a que tu perro tenga una vida más larga y mucho más saludable.

Si te resulta imposible introducir un cepillo de dientes a tu perro en la boca, pásate con él por clínica Tus Veterinarios y te explicamos cómo hacerlo.

Necesitas hacer una limpieza dental profesional a tu mascota?
Llámanos al 622575274 o contacta con nosotros

¿Cada cuánto tiempo tengo que hacerle una limpieza dental a mi perro?

Riesgos de una mala higiene

¿Cómo se forma el sarro?

Limpiezas dentales profesionales de perros y gatos

Ultrasonido para perros

Alimentos para la limpieza dental

Conclusión

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