diff options
Diffstat (limited to '')
| -rw-r--r-- | library/vendor/dompdf/vendor/sabberworm/php-css-parser/src/Value/Value.php | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/library/vendor/dompdf/vendor/sabberworm/php-css-parser/src/Value/Value.php b/library/vendor/dompdf/vendor/sabberworm/php-css-parser/src/Value/Value.php new file mode 100644 index 0000000..66cb9fd --- /dev/null +++ b/library/vendor/dompdf/vendor/sabberworm/php-css-parser/src/Value/Value.php @@ -0,0 +1,198 @@ +<?php + +namespace Sabberworm\CSS\Value; + +use Sabberworm\CSS\Parsing\ParserState; +use Sabberworm\CSS\Parsing\SourceException; +use Sabberworm\CSS\Parsing\UnexpectedEOFException; +use Sabberworm\CSS\Parsing\UnexpectedTokenException; +use Sabberworm\CSS\Renderable; + +abstract class Value implements Renderable +{ + /** + * @var int + */ + protected $iLineNo; + + /** + * @param int $iLineNo + */ + public function __construct($iLineNo = 0) + { + $this->iLineNo = $iLineNo; + } + + /** + * @param array<array-key, string> $aListDelimiters + * + * @return RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string + * + * @throws UnexpectedTokenException + * @throws UnexpectedEOFException + */ + public static function parseValue(ParserState $oParserState, array $aListDelimiters = []) + { + /** @var array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string> $aStack */ + $aStack = []; + $oParserState->consumeWhiteSpace(); + //Build a list of delimiters and parsed values + while ( + !($oParserState->comes('}') || $oParserState->comes(';') || $oParserState->comes('!') + || $oParserState->comes(')') + || $oParserState->comes('\\')) + ) { + if (count($aStack) > 0) { + $bFoundDelimiter = false; + foreach ($aListDelimiters as $sDelimiter) { + if ($oParserState->comes($sDelimiter)) { + array_push($aStack, $oParserState->consume($sDelimiter)); + $oParserState->consumeWhiteSpace(); + $bFoundDelimiter = true; + break; + } + } + if (!$bFoundDelimiter) { + //Whitespace was the list delimiter + array_push($aStack, ' '); + } + } + array_push($aStack, self::parsePrimitiveValue($oParserState)); + $oParserState->consumeWhiteSpace(); + } + // Convert the list to list objects + foreach ($aListDelimiters as $sDelimiter) { + if (count($aStack) === 1) { + return $aStack[0]; + } + $iStartPosition = null; + while (($iStartPosition = array_search($sDelimiter, $aStack, true)) !== false) { + $iLength = 2; //Number of elements to be joined + for ($i = $iStartPosition + 2; $i < count($aStack); $i += 2, ++$iLength) { + if ($sDelimiter !== $aStack[$i]) { + break; + } + } + $oList = new RuleValueList($sDelimiter, $oParserState->currentLine()); + for ($i = $iStartPosition - 1; $i - $iStartPosition + 1 < $iLength * 2; $i += 2) { + $oList->addListComponent($aStack[$i]); + } + array_splice($aStack, $iStartPosition - 1, $iLength * 2 - 1, [$oList]); + } + } + if (!isset($aStack[0])) { + throw new UnexpectedTokenException( + " {$oParserState->peek()} ", + $oParserState->peek(1, -1) . $oParserState->peek(2), + 'literal', + $oParserState->currentLine() + ); + } + return $aStack[0]; + } + + /** + * @param bool $bIgnoreCase + * + * @return CSSFunction|string + * + * @throws UnexpectedEOFException + * @throws UnexpectedTokenException + */ + public static function parseIdentifierOrFunction(ParserState $oParserState, $bIgnoreCase = false) + { + $sResult = $oParserState->parseIdentifier($bIgnoreCase); + + if ($oParserState->comes('(')) { + $oParserState->consume('('); + $aArguments = Value::parseValue($oParserState, ['=', ' ', ',']); + $sResult = new CSSFunction($sResult, $aArguments, ',', $oParserState->currentLine()); + $oParserState->consume(')'); + } + + return $sResult; + } + + /** + * @return CSSFunction|CSSString|LineName|Size|URL|string + * + * @throws UnexpectedEOFException + * @throws UnexpectedTokenException + * @throws SourceException + */ + public static function parsePrimitiveValue(ParserState $oParserState) + { + $oValue = null; + $oParserState->consumeWhiteSpace(); + if ( + is_numeric($oParserState->peek()) + || ($oParserState->comes('-.') + && is_numeric($oParserState->peek(1, 2))) + || (($oParserState->comes('-') || $oParserState->comes('.')) && is_numeric($oParserState->peek(1, 1))) + ) { + $oValue = Size::parse($oParserState); + } elseif ($oParserState->comes('#') || $oParserState->comes('rgb', true) || $oParserState->comes('hsl', true)) { + $oValue = Color::parse($oParserState); + } elseif ($oParserState->comes('url', true)) { + $oValue = URL::parse($oParserState); + } elseif ( + $oParserState->comes('calc', true) || $oParserState->comes('-webkit-calc', true) + || $oParserState->comes('-moz-calc', true) + ) { + $oValue = CalcFunction::parse($oParserState); + } elseif ($oParserState->comes("'") || $oParserState->comes('"')) { + $oValue = CSSString::parse($oParserState); + } elseif ($oParserState->comes("progid:") && $oParserState->getSettings()->bLenientParsing) { + $oValue = self::parseMicrosoftFilter($oParserState); + } elseif ($oParserState->comes("[")) { + $oValue = LineName::parse($oParserState); + } elseif ($oParserState->comes("U+")) { + $oValue = self::parseUnicodeRangeValue($oParserState); + } else { + $oValue = self::parseIdentifierOrFunction($oParserState); + } + $oParserState->consumeWhiteSpace(); + return $oValue; + } + + /** + * @return CSSFunction + * + * @throws UnexpectedEOFException + * @throws UnexpectedTokenException + */ + private static function parseMicrosoftFilter(ParserState $oParserState) + { + $sFunction = $oParserState->consumeUntil('(', false, true); + $aArguments = Value::parseValue($oParserState, [',', '=']); + return new CSSFunction($sFunction, $aArguments, ',', $oParserState->currentLine()); + } + + /** + * @return string + * + * @throws UnexpectedEOFException + * @throws UnexpectedTokenException + */ + private static function parseUnicodeRangeValue(ParserState $oParserState) + { + $iCodepointMaxLength = 6; // Code points outside BMP can use up to six digits + $sRange = ""; + $oParserState->consume("U+"); + do { + if ($oParserState->comes('-')) { + $iCodepointMaxLength = 13; // Max length is 2 six digit code points + the dash(-) between them + } + $sRange .= $oParserState->consume(1); + } while (strlen($sRange) < $iCodepointMaxLength && preg_match("/[A-Fa-f0-9\?-]/", $oParserState->peek())); + return "U+{$sRange}"; + } + + /** + * @return int + */ + public function getLineNo() + { + return $this->iLineNo; + } +} |