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Direktori : /home2/selectio/public_html/ramali.in/pdf/lib/php-css-parser/lib/Sabberworm/CSS/Value/ |
Current File : /home2/selectio/public_html/ramali.in/pdf/lib/php-css-parser/lib/Sabberworm/CSS/Value/Value.php |
<?php namespace Sabberworm\CSS\Value; use Sabberworm\CSS\Parsing\ParserState; use Sabberworm\CSS\Parsing\UnexpectedTokenException; use Sabberworm\CSS\Renderable; abstract class Value implements Renderable { protected $iLineNo; public function __construct($iLineNo = 0) { $this->iLineNo = $iLineNo; } public static function parseValue(ParserState $oParserState, $aListDelimiters = array()) { $aStack = array(); $oParserState->consumeWhiteSpace(); //Build a list of delimiters and parsed values while (!($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, $iLength * 2 - 1, array($oList)); } } if (!isset($aStack[0])) { throw new UnexpectedTokenException(" {$oParserState->peek()} ", $oParserState->peek(1, -1) . $oParserState->peek(2), 'literal', $oParserState->currentLine()); } return $aStack[0]; } public static function parseIdentifierOrFunction(ParserState $oParserState, $bIgnoreCase = false) { $sResult = $oParserState->parseIdentifier($bIgnoreCase); if ($oParserState->comes('(')) { $oParserState->consume('('); $aArguments = Value::parseValue($oParserState, array('=', ' ', ',')); $sResult = new CSSFunction($sResult, $aArguments, ',', $oParserState->currentLine()); $oParserState->consume(')'); } return $sResult; } 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); } else if ($oParserState->comes('#') || $oParserState->comes('rgb', true) || $oParserState->comes('hsl', true)) { $oValue = Color::parse($oParserState); } else if ($oParserState->comes('url', true)) { $oValue = URL::parse($oParserState); } else if ($oParserState->comes('calc', true) || $oParserState->comes('-webkit-calc', true) || $oParserState->comes('-moz-calc', true)) { $oValue = CalcFunction::parse($oParserState); } else if ($oParserState->comes("'") || $oParserState->comes('"')) { $oValue = CSSString::parse($oParserState); } else if ($oParserState->comes("progid:") && $oParserState->getSettings()->bLenientParsing) { $oValue = self::parseMicrosoftFilter($oParserState); } else if ($oParserState->comes("[")) { $oValue = LineName::parse($oParserState); } else if ($oParserState->comes("U+")) { $oValue = self::parseUnicodeRangeValue($oParserState); } else { $oValue = self::parseIdentifierOrFunction($oParserState); } $oParserState->consumeWhiteSpace(); return $oValue; } private static function parseMicrosoftFilter(ParserState $oParserState) { $sFunction = $oParserState->consumeUntil('(', false, true); $aArguments = Value::parseValue($oParserState, array(',', '=')); return new CSSFunction($sFunction, $aArguments, ',', $oParserState->currentLine()); } private static function parseUnicodeRangeValue(ParserState $oParserState) { $iCodepointMaxLenth = 6; // Code points outside BMP can use up to six digits $sRange = ""; $oParserState->consume("U+"); do { if ($oParserState->comes('-')) $iCodepointMaxLenth = 13; // Max length is 2 six digit code points + the dash(-) between them $sRange .= $oParserState->consume(1); } while (strlen($sRange) < $iCodepointMaxLenth && preg_match("/[A-Fa-f0-9\?-]/", $oParserState->peek())); return "U+{$sRange}"; } /** * @return int */ public function getLineNo() { return $this->iLineNo; } //Methods are commented out because re-declaring them here is a fatal error in PHP < 5.3.9 //public abstract function __toString(); //public abstract function render(\Sabberworm\CSS\OutputFormat $oOutputFormat); }