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   1  <?php
   2  
   3  namespace Sabberworm\CSS\Value;
   4  
   5  use Sabberworm\CSS\Parsing\ParserState;
   6  use Sabberworm\CSS\Parsing\SourceException;
   7  
   8  class CSSString extends PrimitiveValue {
   9  
  10      private $sString;
  11  
  12  	public function __construct($sString, $iLineNo = 0) {
  13          $this->sString = $sString;
  14          parent::__construct($iLineNo);
  15      }
  16  
  17  	public static function parse(ParserState $oParserState) {
  18          $sBegin = $oParserState->peek();
  19          $sQuote = null;
  20          if ($sBegin === "'") {
  21              $sQuote = "'";
  22          } else if ($sBegin === '"') {
  23              $sQuote = '"';
  24          }
  25          if ($sQuote !== null) {
  26              $oParserState->consume($sQuote);
  27          }
  28          $sResult = "";
  29          $sContent = null;
  30          if ($sQuote === null) {
  31              // Unquoted strings end in whitespace or with braces, brackets, parentheses
  32              while (!preg_match('/[\\s{}()<>\\[\\]]/isu', $oParserState->peek())) {
  33                  $sResult .= $oParserState->parseCharacter(false);
  34              }
  35          } else {
  36              while (!$oParserState->comes($sQuote)) {
  37                  $sContent = $oParserState->parseCharacter(false);
  38                  if ($sContent === null) {
  39                      throw new SourceException("Non-well-formed quoted string {$oParserState->peek(3)}", $oParserState->currentLine());
  40                  }
  41                  $sResult .= $sContent;
  42              }
  43              $oParserState->consume($sQuote);
  44          }
  45          return new CSSString($sResult, $oParserState->currentLine());
  46      }
  47  
  48  	public function setString($sString) {
  49          $this->sString = $sString;
  50      }
  51  
  52  	public function getString() {
  53          return $this->sString;
  54      }
  55  
  56  	public function __toString() {
  57          return $this->render(new \Sabberworm\CSS\OutputFormat());
  58      }
  59  
  60  	public function render(\Sabberworm\CSS\OutputFormat $oOutputFormat) {
  61          $sString = addslashes($this->sString);
  62          $sString = str_replace("\n", '\A', $sString);
  63          return $oOutputFormat->getStringQuotingType() . $sString . $oOutputFormat->getStringQuotingType();
  64      }
  65  
  66  }